docs(spec): add sheet-history-revert spec (history list / revert / revert-status)

3 new lark-sheets shortcuts via existing ToolsCall framework:
- +history-list, +history-revert, +history-revert-status
- async revert: sheet/data RecoverHistory → RecoverMsg(MQ) → agg consumer
  assigns memberId by scene (lark-cli=11 / doubao=10)
- scene threaded via ctx baggage; no thrift changes (codegen all-no)
- spans larksuite/cli, ee/sheet-skill-spec, ee/sheet-facade-agg, sheet/data

Force-added under docs/ (repo-wide gitignored) so ccm-harness drift
detection has the git-tracked SSOT.

.github/workflows/ci.yml

@@ -10,8 +10,6 @@ on:
 permissions:
   contents: read
   actions: read
-  checks: write
-  pull-requests: write
 
 jobs:
   # ── Layer 1: Fast Gate ─────────────────────────────────────────────
@@ -80,10 +78,47 @@ jobs:
           python-version: '3.x'
       - name: Fetch meta data
         run: python3 scripts/fetch_meta.py
+      - name: Resolve changed-from baseline
+        env:
+          QUALITY_GATE_CHANGED_FROM: ${{ github.event.pull_request.base.sha || github.event.before || 'origin/main' }}
+        run: echo "QUALITY_GATE_CHANGED_FROM=$(bash scripts/resolve-changed-from.sh)" >> "$GITHUB_ENV"
       - name: Run golangci-lint
-        run: go run github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.1.6 run --new-from-rev=origin/main
+        run: go run github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.1.6 run --new-from-rev="$QUALITY_GATE_CHANGED_FROM"
       - name: Run errs/ lint guards (lintcheck)
-        run: go run -C lint . ..
+        run: go run -C lint . --changed-from "$QUALITY_GATE_CHANGED_FROM" ..
+
+  deterministic-gate:
+    needs: fast-gate
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      actions: read
+    steps:
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        with:
+          fetch-depth: 0
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
+        with:
+          go-version-file: go.mod
+      - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
+        with:
+          python-version: '3.x'
+      - name: Fetch meta data
+        run: python3 scripts/fetch_meta.py
+      - name: Resolve changed-from baseline
+        env:
+          QUALITY_GATE_CHANGED_FROM: ${{ github.event.pull_request.base.sha || github.event.before || 'origin/main' }}
+        run: echo "QUALITY_GATE_CHANGED_FROM=$(bash scripts/resolve-changed-from.sh)" >> "$GITHUB_ENV"
+      - name: Run CLI deterministic gate
+        run: make quality-gate
+      - name: Upload quality gate facts
+        if: ${{ always() && github.event_name == 'pull_request' }}
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: quality-gate-facts-${{ github.event.pull_request.base.sha }}-${{ github.event.pull_request.head.sha }}
+          path: .tmp/quality-gate/facts.json
+          if-no-files-found: error
+          retention-days: 7
 
   coverage:
     needs: fast-gate
@@ -103,6 +138,7 @@ jobs:
           packages=$(go list ./... | grep -v '^github.com/larksuite/cli/tests/cli_e2e$' | grep -v '^github.com/larksuite/cli/tests/cli_e2e/')
           go test -race -coverprofile=coverage.txt -covermode=atomic $packages
       - name: Upload coverage to Codecov
+        if: ${{ github.event_name != 'pull_request' || !github.event.pull_request.head.repo.fork }}
         uses: codecov/codecov-action@3f20e214133d0983f9a10f3d63b0faf9241a3daa # v6
         with:
           files: coverage.txt
@@ -184,7 +220,7 @@ jobs:
 
   # ── Layer 3: E2E Gate ──────────────────────────────────────────────
   e2e-dry-run:
-    needs: [unit-test, lint]
+    needs: [unit-test, lint, deterministic-gate]
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
@@ -205,9 +241,12 @@ jobs:
         run: go test -v -count=1 -timeout=5m ./tests/cli_e2e/... -run 'DryRun|Regression'
 
   e2e-live:
-    needs: [unit-test, lint]
+    needs: [unit-test, lint, deterministic-gate]
     if: ${{ github.event_name != 'pull_request' || !github.event.pull_request.head.repo.fork }}
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      checks: write
     env:
       TEST_BOT1_APP_ID: ${{ secrets.TEST_BOT1_APP_ID }}
       TEST_BOT1_APP_SECRET: ${{ secrets.TEST_BOT1_APP_SECRET }}
@@ -254,6 +293,9 @@ jobs:
   # ── Layer 4: Security & Compliance (parallel with L2-L3) ──────────
   security:
     runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: read
     steps:
       - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
         with:
@@ -291,7 +333,7 @@ jobs:
   # ── Results Gate (single required check for branch protection) ─────
   results:
     if: ${{ always() }}
-    needs: [fast-gate, unit-test, lint, coverage, deadcode, e2e-dry-run, e2e-live, security, license-header]
+    needs: [fast-gate, unit-test, lint, deterministic-gate, coverage, deadcode, e2e-dry-run, e2e-live, security, license-header]
     runs-on: ubuntu-latest
     steps:
       - name: Evaluate results
@@ -303,6 +345,7 @@ jobs:
           echo "| L1 | fast-gate | ${{ needs.fast-gate.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L2 | unit-test | ${{ needs.unit-test.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L2 | lint | ${{ needs.lint.result }} |" >> $GITHUB_STEP_SUMMARY
+          echo "| L2 | deterministic-gate | ${{ needs.deterministic-gate.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L2 | coverage | ${{ needs.coverage.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L2 | deadcode | ${{ needs.deadcode.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L3 | e2e-dry-run | ${{ needs.e2e-dry-run.result }} |" >> $GITHUB_STEP_SUMMARY
@@ -318,6 +361,7 @@ jobs:
             "${{ needs.fast-gate.result }}" \
             "${{ needs.unit-test.result }}" \
             "${{ needs.lint.result }}" \
+            "${{ needs.deterministic-gate.result }}" \
             "${{ needs.coverage.result }}" \
             "${{ needs.deadcode.result }}" \
             "${{ needs.e2e-dry-run.result }}" \

.github/workflows/semantic-review.yml

@@ -0,0 +1,560 @@
+name: Semantic Review
+
+on:
+  workflow_run:
+    workflows: ["CI"]
+    types: [completed]
+
+permissions:
+  actions: read
+  contents: read
+
+jobs:
+  pr-quality-summary:
+    if: github.event.workflow_run.event == 'pull_request'
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      contents: read
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Verify workflow run and pull request for summary
+        id: pr
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          script: |
+            const run = context.payload.workflow_run;
+            if (run.name !== "CI") throw new Error(`unexpected workflow name: ${run.name}`);
+            let workflowPath = run.path || "";
+            if (!workflowPath) {
+              const workflowId = Number(run.workflow_id || 0);
+              if (!Number.isInteger(workflowId) || workflowId <= 0) throw new Error("missing workflow id");
+              const { data: workflow } = await github.rest.actions.getWorkflow({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                workflow_id: workflowId,
+              });
+              workflowPath = workflow.path || "";
+            }
+            if (workflowPath !== ".github/workflows/ci.yml") throw new Error(`unexpected workflow path: ${workflowPath}`);
+            if (run.event !== "pull_request") throw new Error(`unexpected event: ${run.event}`);
+            if (run.repository.id !== context.payload.repository.id) throw new Error("repository id mismatch");
+            if (run.repository.full_name !== context.payload.repository.full_name) throw new Error("repository name mismatch");
+            if (typeof run.head_sha !== "string" || run.head_sha.length !== 40) throw new Error("invalid head sha");
+            const runPRs = Array.isArray(run.pull_requests) ? run.pull_requests : [];
+            if (runPRs.length > 1) {
+              throw new Error(`ambiguous workflow_run pull request bindings: ${runPRs.length}`);
+            }
+            let prNumber = Number(runPRs[0]?.number || 0);
+            let eventBaseSha = runPRs[0]?.base?.sha || "";
+            const eventHeadSha = runPRs[0]?.head?.sha || "";
+            const targetHeadSha = eventHeadSha || run.head_sha;
+            if (!/^[a-f0-9]{40}$/i.test(targetHeadSha)) throw new Error("invalid PR head sha");
+
+            const factsArtifactPattern = /^quality-gate-facts-([a-f0-9]{40})-([a-f0-9]{40})$/i;
+            const { data: artifactData } = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: run.id,
+              per_page: 100,
+            });
+            const factsArtifacts = artifactData.artifacts.filter((artifact) => factsArtifactPattern.test(artifact.name));
+            let factsArtifactName = "";
+            let artifactBaseSha = "";
+            let artifactError = "";
+            if (factsArtifacts.length !== 1) {
+              artifactError = `expected exactly one base-bound quality gate facts artifact, got ${factsArtifacts.length}`;
+            } else {
+              factsArtifactName = factsArtifacts[0].name;
+              const [, parsedBaseSha, artifactHeadSha] = factsArtifactName.match(factsArtifactPattern);
+              if (artifactHeadSha.toLowerCase() !== targetHeadSha.toLowerCase()) {
+                artifactError = "facts artifact head sha does not match verified PR head sha";
+                factsArtifactName = "";
+              } else if (eventBaseSha && parsedBaseSha.toLowerCase() !== eventBaseSha.toLowerCase()) {
+                artifactError = "facts artifact base sha does not match workflow_run pull request base sha";
+                factsArtifactName = "";
+              } else {
+                artifactBaseSha = parsedBaseSha;
+              }
+            }
+            if (!prNumber) {
+              const { data: associatedPRs } = await github.rest.repos.listPullRequestsAssociatedWithCommit({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                commit_sha: targetHeadSha,
+              });
+              const candidatePRs = associatedPRs.filter((candidate) =>
+                candidate.state === "open" &&
+                candidate.base?.repo?.id === context.payload.repository.id &&
+                candidate.head?.sha === targetHeadSha
+              );
+              if (candidatePRs.length > 1) {
+                throw new Error(`ambiguous open PRs for workflow_run head ${targetHeadSha}: ${candidatePRs.length}`);
+              }
+              if (candidatePRs.length === 1) {
+                prNumber = candidatePRs[0].number;
+              }
+            }
+            if (!prNumber) {
+              const candidatePRs = await github.paginate(github.rest.pulls.list, {
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                state: "open",
+                per_page: 100,
+              }).then((prs) => prs.filter((candidate) =>
+                candidate.base?.repo?.id === context.payload.repository.id &&
+                candidate.head?.sha === targetHeadSha
+              ));
+              if (candidatePRs.length !== 1) {
+                throw new Error(`expected one open PR from pull list fallback for workflow_run head ${targetHeadSha}, got ${candidatePRs.length}`);
+              }
+              prNumber = candidatePRs[0].number;
+            }
+            if (!Number.isInteger(prNumber) || prNumber <= 0) throw new Error("missing pull request binding");
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber,
+            });
+            if (pr.base.repo.id !== context.payload.repository.id) throw new Error("PR base repo mismatch");
+            if (pr.head.sha !== targetHeadSha) {
+              core.notice("PR quality summary skipped: workflow_run is stale for this PR head");
+              core.setOutput("stale", "true");
+              return;
+            }
+            const baseSha = eventBaseSha || artifactBaseSha || pr.base.sha;
+            if (!/^[a-f0-9]{40}$/i.test(baseSha)) throw new Error("invalid PR base sha");
+            if ((eventBaseSha || artifactBaseSha) && pr.base.sha !== baseSha) {
+              core.notice("PR quality summary skipped: workflow_run is stale for this PR base");
+              core.setOutput("stale", "true");
+              return;
+            }
+            if (artifactError) {
+              core.warning(`quality gate facts artifact binding is unavailable: ${artifactError}`);
+            }
+            core.setOutput("pr_number", String(prNumber));
+            core.setOutput("head_sha", targetHeadSha);
+            core.setOutput("base_sha", baseSha);
+            core.setOutput("run_id", String(run.id));
+            core.setOutput("facts_artifact_name", factsArtifactName);
+            core.setOutput("artifact_error", artifactError);
+            core.setOutput("stale", "false");
+
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        id: checkout
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        with:
+          ref: ${{ steps.pr.outputs.base_sha }}
+          persist-credentials: false
+
+      - name: Verify summary facts artifact metadata
+        id: artifact
+        if: ${{ steps.pr.outputs.stale != 'true' && steps.pr.outputs.facts_artifact_name != '' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          script: |
+            const run = context.payload.workflow_run;
+            const factsArtifactName = "${{ steps.pr.outputs.facts_artifact_name }}";
+            const { data } = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: run.id,
+              per_page: 100,
+            });
+            const artifacts = data.artifacts.filter(a => a.name === factsArtifactName);
+            if (artifacts.length !== 1) throw new Error(`expected exactly one quality-gate-facts artifact, got ${artifacts.length}`);
+            const artifact = artifacts[0];
+            if (artifact.expired) throw new Error("quality-gate-facts artifact expired");
+            if (artifact.size_in_bytes <= 0 || artifact.size_in_bytes > 5 * 1024 * 1024) {
+              throw new Error(`invalid artifact size: ${artifact.size_in_bytes}`);
+            }
+            if (!artifact.digest) throw new Error("facts artifact digest is missing from GitHub API response");
+            core.setOutput("artifact_id", String(artifact.id));
+            core.setOutput("artifact_digest", artifact.digest);
+
+      - name: Download facts artifact zip
+        if: ${{ steps.pr.outputs.stale != 'true' && steps.artifact.outputs.artifact_id != '' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        id: download
+        with:
+          script: |
+            const fs = require("fs");
+            const path = require("path");
+            const artifactId = Number("${{ steps.artifact.outputs.artifact_id }}");
+            if (!Number.isInteger(artifactId) || artifactId <= 0) throw new Error("invalid artifact id");
+            const { data } = await github.rest.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: artifactId,
+              archive_format: "zip",
+            });
+            const zipPath = path.join(process.env.RUNNER_TEMP, "quality-gate-facts.zip");
+            fs.writeFileSync(zipPath, Buffer.from(data));
+            core.setOutput("zip_path", zipPath);
+
+      - name: Verify and extract summary facts artifact
+        if: ${{ steps.pr.outputs.stale != 'true' && steps.download.outputs.zip_path != '' }}
+        env:
+          SEMANTIC_REVIEW_BLOCK: ${{ vars.SEMANTIC_REVIEW_BLOCK }}
+          SEMANTIC_REVIEW_DECISION_OUT: decision.json
+          SEMANTIC_REVIEW_MARKDOWN_OUT: semantic-review.md
+        run: node scripts/semantic-review-verify-artifact.js '${{ steps.download.outputs.zip_path }}' facts.json '${{ steps.artifact.outputs.artifact_digest }}'
+
+      - name: Publish PR quality summary
+        if: ${{ always() && steps.pr.outputs.stale != 'true' && steps.checkout.outcome == 'success' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        env:
+          CI_QUALITY_SUMMARY_HEAD_SHA: ${{ steps.pr.outputs.head_sha }}
+          CI_QUALITY_SUMMARY_BASE_SHA: ${{ steps.pr.outputs.base_sha }}
+          CI_QUALITY_SUMMARY_PR_NUMBER: ${{ steps.pr.outputs.pr_number }}
+          CI_QUALITY_SUMMARY_RUN_ID: ${{ steps.pr.outputs.run_id }}
+          CI_QUALITY_SUMMARY_ARTIFACT_ERROR: ${{ steps.pr.outputs.artifact_error }}
+        with:
+          script: |
+            const { publish } = require("./scripts/ci-quality-summary-publish.js");
+            await publish({ github, context, core });
+
+  semantic-review:
+    needs: pr-quality-summary
+    if: always() && github.event.workflow_run.conclusion == 'success' && github.event.workflow_run.event == 'pull_request'
+    runs-on: ubuntu-latest
+    permissions:
+      actions: read
+      checks: write
+      contents: read
+      issues: write
+      pull-requests: write
+    steps:
+      - name: Verify workflow run and pull request
+        id: pr
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          script: |
+            const run = context.payload.workflow_run;
+            if (run.name !== "CI") throw new Error(`unexpected workflow name: ${run.name}`);
+            let workflowPath = run.path || "";
+            if (!workflowPath) {
+              const workflowId = Number(run.workflow_id || 0);
+              if (!Number.isInteger(workflowId) || workflowId <= 0) throw new Error("missing workflow id");
+              const { data: workflow } = await github.rest.actions.getWorkflow({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                workflow_id: workflowId,
+              });
+              workflowPath = workflow.path || "";
+            }
+            if (workflowPath !== ".github/workflows/ci.yml") throw new Error(`unexpected workflow path: ${workflowPath}`);
+            if (run.event !== "pull_request") throw new Error(`unexpected event: ${run.event}`);
+            if (run.conclusion !== "success") throw new Error(`unexpected conclusion: ${run.conclusion}`);
+            if (run.repository.id !== context.payload.repository.id) throw new Error("repository id mismatch");
+            if (run.repository.full_name !== context.payload.repository.full_name) throw new Error("repository name mismatch");
+            if (typeof run.head_sha !== "string" || run.head_sha.length !== 40) throw new Error("invalid head sha");
+            const runPRs = Array.isArray(run.pull_requests) ? run.pull_requests : [];
+            if (runPRs.length > 1) {
+              throw new Error(`ambiguous workflow_run pull request bindings: ${runPRs.length}`);
+            }
+            let prNumber = Number(runPRs[0]?.number || 0);
+            let eventBaseSha = runPRs[0]?.base?.sha || "";
+            const eventHeadSha = runPRs[0]?.head?.sha || "";
+            const targetHeadSha = eventHeadSha || run.head_sha;
+            if (!/^[a-f0-9]{40}$/i.test(targetHeadSha)) throw new Error("invalid PR head sha");
+
+            const factsArtifactPattern = /^quality-gate-facts-([a-f0-9]{40})-([a-f0-9]{40})$/i;
+            const { data: artifactData } = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: run.id,
+              per_page: 100,
+            });
+            const factsArtifacts = artifactData.artifacts.filter((artifact) => factsArtifactPattern.test(artifact.name));
+            let factsArtifactName = "";
+            let artifactBaseSha = "";
+            let artifactError = "";
+            if (factsArtifacts.length !== 1) {
+              artifactError = `expected exactly one base-bound quality gate facts artifact, got ${factsArtifacts.length}`;
+            } else {
+              factsArtifactName = factsArtifacts[0].name;
+              const [, parsedBaseSha, artifactHeadSha] = factsArtifactName.match(factsArtifactPattern);
+              if (artifactHeadSha.toLowerCase() !== targetHeadSha.toLowerCase()) {
+                artifactError = "facts artifact head sha does not match verified PR head sha";
+                factsArtifactName = "";
+              } else if (eventBaseSha && parsedBaseSha.toLowerCase() !== eventBaseSha.toLowerCase()) {
+                artifactError = "facts artifact base sha does not match workflow_run pull request base sha";
+                factsArtifactName = "";
+              } else {
+                artifactBaseSha = parsedBaseSha;
+              }
+            }
+            if (!prNumber) {
+              const { data: associatedPRs } = await github.rest.repos.listPullRequestsAssociatedWithCommit({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                commit_sha: targetHeadSha,
+              });
+              const candidatePRs = associatedPRs.filter((candidate) =>
+                candidate.state === "open" &&
+                candidate.base?.repo?.id === context.payload.repository.id &&
+                candidate.head?.sha === targetHeadSha
+              );
+              if (candidatePRs.length > 1) {
+                throw new Error(`ambiguous open PRs for workflow_run head ${targetHeadSha}: ${candidatePRs.length}`);
+              }
+              if (candidatePRs.length === 1) {
+                prNumber = candidatePRs[0].number;
+              }
+            }
+            if (!prNumber) {
+              const candidatePRs = await github.paginate(github.rest.pulls.list, {
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                state: "open",
+                per_page: 100,
+              }).then((prs) => prs.filter((candidate) =>
+                candidate.base?.repo?.id === context.payload.repository.id &&
+                candidate.head?.sha === targetHeadSha
+              ));
+              if (candidatePRs.length !== 1) {
+                throw new Error(`expected one open PR from pull list fallback for workflow_run head ${targetHeadSha}, got ${candidatePRs.length}`);
+              }
+              prNumber = candidatePRs[0].number;
+            }
+            if (!Number.isInteger(prNumber) || prNumber <= 0) throw new Error("missing pull request binding");
+            const { data: pr } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: prNumber,
+            });
+            if (pr.base.repo.id !== context.payload.repository.id) throw new Error("PR base repo mismatch");
+            if (pr.head.sha !== targetHeadSha) {
+              core.notice("semantic review skipped: workflow_run is stale for this PR head");
+              core.setOutput("stale", "true");
+              return;
+            }
+            const baseSha = eventBaseSha || artifactBaseSha || pr.base.sha;
+            if (!/^[a-f0-9]{40}$/i.test(baseSha)) throw new Error("invalid PR base sha");
+            if ((eventBaseSha || artifactBaseSha) && pr.base.sha !== baseSha) {
+              core.notice("semantic review skipped: workflow_run is stale for this PR base");
+              core.setOutput("stale", "true");
+              return;
+            }
+            if (artifactError) {
+              core.warning(`semantic review facts artifact binding is unavailable: ${artifactError}`);
+            }
+            core.setOutput("pr_number", String(prNumber));
+            core.setOutput("head_sha", targetHeadSha);
+            core.setOutput("base_sha", baseSha);
+            core.setOutput("head_owner", pr.head.repo.owner.login);
+            core.setOutput("head_repo", pr.head.repo.name);
+            core.setOutput("head_repo_id", String(pr.head.repo.id));
+            core.setOutput("head_is_base_repo", pr.head.repo.id === context.payload.repository.id ? "true" : "false");
+            core.setOutput("run_id", String(run.id));
+            core.setOutput("facts_artifact_name", factsArtifactName);
+            core.setOutput("artifact_error", artifactError);
+            core.setOutput("stale", "false");
+
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        id: checkout
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        with:
+          ref: ${{ steps.pr.outputs.base_sha }}
+          persist-credentials: false
+
+      - name: Publish pre-checkout semantic review failure
+        if: ${{ failure() && steps.pr.outputs.stale != 'true' && steps.checkout.outcome != 'success' && steps.pr.outputs.head_sha != '' && steps.pr.outputs.pr_number != '' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        env:
+          SEMANTIC_REVIEW_BLOCK: ${{ vars.SEMANTIC_REVIEW_BLOCK }}
+          SEMANTIC_REVIEW_HEAD_SHA: ${{ steps.pr.outputs.head_sha }}
+          SEMANTIC_REVIEW_BASE_SHA: ${{ steps.pr.outputs.base_sha }}
+          SEMANTIC_REVIEW_PR_NUMBER: ${{ steps.pr.outputs.pr_number }}
+          SEMANTIC_REVIEW_RUN_ID: ${{ steps.pr.outputs.run_id }}
+        with:
+          script: |
+            const runtimeBlockMode = process.env.SEMANTIC_REVIEW_BLOCK === "true";
+            const pr = Number(process.env.SEMANTIC_REVIEW_PR_NUMBER || 0);
+            const headSha = process.env.SEMANTIC_REVIEW_HEAD_SHA || "";
+            const baseSha = process.env.SEMANTIC_REVIEW_BASE_SHA || "";
+            if (!Number.isInteger(pr) || pr <= 0 || !/^[a-f0-9]{40}$/i.test(headSha) || !/^[a-f0-9]{40}$/i.test(baseSha)) {
+              throw new Error("missing verified semantic review target");
+            }
+            const { data: pull } = await github.rest.pulls.get({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              pull_number: pr,
+            });
+            if (pull.head.sha !== headSha) {
+              core.notice("semantic review skipped infrastructure failure check: PR head changed");
+              return;
+            }
+            if (pull.base.sha !== baseSha) {
+              core.notice("semantic review skipped infrastructure failure check: PR base changed");
+              return;
+            }
+            if (pull.base.repo.id !== context.payload.repository.id) {
+              throw new Error("PR base repo mismatch before infrastructure failure check");
+            }
+            await github.rest.checks.create({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              name: runtimeBlockMode ? "semantic-review/result" : "semantic-review/observe",
+              head_sha: headSha,
+              status: "completed",
+              conclusion: runtimeBlockMode ? "failure" : "neutral",
+              output: {
+                title: "Semantic review infrastructure failure",
+                summary: "Semantic review could not checkout the verified base commit. Inspect the workflow logs before relying on semantic review output.",
+              },
+            });
+
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        with:
+          go-version-file: go.mod
+
+      - name: Verify semantic facts artifact metadata
+        id: artifact
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        with:
+          script: |
+            const run = context.payload.workflow_run;
+            const factsArtifactName = "${{ steps.pr.outputs.facts_artifact_name }}";
+            if (!/^quality-gate-facts-[a-f0-9]{40}-[a-f0-9]{40}$/i.test(factsArtifactName)) {
+              throw new Error("missing verified facts artifact binding");
+            }
+            const { data } = await github.rest.actions.listWorkflowRunArtifacts({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              run_id: run.id,
+              per_page: 100,
+            });
+            const artifacts = data.artifacts.filter(a => a.name === factsArtifactName);
+            if (artifacts.length !== 1) throw new Error(`expected exactly one quality-gate-facts artifact, got ${artifacts.length}`);
+            const artifact = artifacts[0];
+            if (artifact.expired) throw new Error("quality-gate-facts artifact expired");
+            if (artifact.size_in_bytes <= 0 || artifact.size_in_bytes > 5 * 1024 * 1024) {
+              throw new Error(`invalid artifact size: ${artifact.size_in_bytes}`);
+            }
+            if (!artifact.digest) throw new Error("facts artifact digest is missing from GitHub API response");
+            core.setOutput("artifact_id", String(artifact.id));
+            core.setOutput("artifact_digest", artifact.digest);
+
+      - name: Download facts artifact zip
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        id: download
+        with:
+          script: |
+            const fs = require("fs");
+            const path = require("path");
+            const artifactId = Number("${{ steps.artifact.outputs.artifact_id }}");
+            if (!Number.isInteger(artifactId) || artifactId <= 0) throw new Error("invalid artifact id");
+            const { data } = await github.rest.actions.downloadArtifact({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              artifact_id: artifactId,
+              archive_format: "zip",
+            });
+            const zipPath = path.join(process.env.RUNNER_TEMP, "quality-gate-facts.zip");
+            fs.writeFileSync(zipPath, Buffer.from(data));
+            core.setOutput("zip_path", zipPath);
+
+      - name: Verify and extract semantic facts artifact
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        env:
+          SEMANTIC_REVIEW_BLOCK: ${{ vars.SEMANTIC_REVIEW_BLOCK }}
+          SEMANTIC_REVIEW_DECISION_OUT: decision.json
+          SEMANTIC_REVIEW_MARKDOWN_OUT: semantic-review.md
+        run: node scripts/semantic-review-verify-artifact.js '${{ steps.download.outputs.zip_path }}' facts.json '${{ steps.artifact.outputs.artifact_digest }}'
+
+      - name: Download PR semantic waiver config
+        id: waiver_config
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        env:
+          SEMANTIC_REVIEW_HEAD_SHA: ${{ steps.pr.outputs.head_sha }}
+          SEMANTIC_REVIEW_HEAD_OWNER: ${{ steps.pr.outputs.head_owner }}
+          SEMANTIC_REVIEW_HEAD_REPO: ${{ steps.pr.outputs.head_repo }}
+          SEMANTIC_REVIEW_HEAD_IS_BASE_REPO: ${{ steps.pr.outputs.head_is_base_repo }}
+        with:
+          script: |
+            const fs = require("fs");
+            const path = require("path");
+            const headSha = process.env.SEMANTIC_REVIEW_HEAD_SHA || "";
+            if (!/^[a-f0-9]{40}$/i.test(headSha)) {
+              throw new Error("missing verified semantic review target");
+            }
+            const headOwner = process.env.SEMANTIC_REVIEW_HEAD_OWNER || "";
+            const headRepo = process.env.SEMANTIC_REVIEW_HEAD_REPO || "";
+            if (!headOwner || !headRepo) {
+              throw new Error("missing verified semantic review head repository");
+            }
+            const waiverPath = "internal/qualitygate/config/semantic/waivers.txt";
+            const outPath = path.join(process.env.RUNNER_TEMP, "semantic-review-waivers.txt");
+            const headIsBaseRepo = process.env.SEMANTIC_REVIEW_HEAD_IS_BASE_REPO === "true";
+            if (!headIsBaseRepo) {
+              core.notice("fork PR semantic waiver config is ignored");
+              core.setOutput("path", "");
+              return;
+            }
+            let content = "";
+            try {
+              const { data } = await github.rest.repos.getContent({
+                owner: headOwner,
+                repo: headRepo,
+                path: waiverPath,
+                ref: headSha,
+              });
+              if (Array.isArray(data) || data.type !== "file" || data.encoding !== "base64") {
+                throw new Error(`${waiverPath} is not a base64 file at PR head`);
+              }
+              if (data.size > 256 * 1024) {
+                throw new Error(`${waiverPath} is too large: ${data.size} bytes`);
+              }
+              content = Buffer.from(data.content, "base64").toString("utf8");
+            } catch (err) {
+              if (err.status !== 404) {
+                throw err;
+              }
+            }
+            fs.writeFileSync(outPath, content);
+            core.setOutput("path", outPath);
+
+      - name: Run semantic review
+        id: semantic
+        if: ${{ steps.pr.outputs.stale != 'true' }}
+        env:
+          ARK_API_KEY: ${{ secrets.ARK_API_KEY }}
+          ARK_BASE_URL: ${{ vars.ARK_BASE_URL }}
+          ARK_MODEL: ${{ vars.ARK_MODEL }}
+          ARK_TIMEOUT_SECONDS: ${{ vars.ARK_TIMEOUT_SECONDS }}
+          SEMANTIC_REVIEW_BLOCK: ${{ vars.SEMANTIC_REVIEW_BLOCK }}
+        run: |
+          args=(
+            --repo .
+            --facts facts.json
+            --decision-out decision.json
+            --markdown-out semantic-review.md
+          )
+          if [ -n "${{ steps.waiver_config.outputs.path }}" ]; then
+            args+=(--waivers-file '${{ steps.waiver_config.outputs.path }}')
+          fi
+          if [ "$SEMANTIC_REVIEW_BLOCK" = "true" ]; then
+            args+=(--block)
+          fi
+          go run ./internal/qualitygate/cmd/semantic-review "${args[@]}"
+
+      - name: Publish semantic review
+        if: ${{ always() && steps.pr.outputs.stale != 'true' && steps.checkout.outcome == 'success' }}
+        uses: actions/github-script@ed597411d8f924073f98dfc5c65a23a2325f34cd # v8.0.0
+        env:
+          SEMANTIC_REVIEW_BLOCK: ${{ vars.SEMANTIC_REVIEW_BLOCK }}
+          SEMANTIC_REVIEW_HEAD_SHA: ${{ steps.pr.outputs.head_sha }}
+          SEMANTIC_REVIEW_BASE_SHA: ${{ steps.pr.outputs.base_sha }}
+          SEMANTIC_REVIEW_PR_NUMBER: ${{ steps.pr.outputs.pr_number }}
+          SEMANTIC_REVIEW_RUN_ID: ${{ steps.pr.outputs.run_id }}
+        with:
+          script: |
+            const { publish } = require("./scripts/semantic-review-publish.js");
+            await publish({ github, context, core });

.golangci.yml

@@ -29,11 +29,11 @@ linters:
     - unused          # checks for unused constants, variables, functions and types
     - depguard        # blocks forbidden package imports
     - forbidigo       # forbids specific function calls
+    - errorlint       # enforces error wrapping (%w) and errors.Is/As over == and type asserts
 
     # To enable later after fixing existing issues:
     # - errcheck      # checks for unchecked errors
     # - errname       # checks that error types are named XxxError
-    # - errorlint     # checks error wrapping best practices
     # - gosec         # security-oriented linter
     # - misspell      # finds commonly misspelled English words
     # - staticcheck   # comprehensive static analysis
@@ -49,9 +49,16 @@ linters:
           - gocritic
           - depguard
           - forbidigo
-      # Paths that run forbidigo. Add an entry when a path joins one of
-      # the rules below.
+          - errorlint # tests legitimately do identity (==) and concrete type-assert checks
+      # forbidigo runs repo-wide (minus the boundaries below) so errs-no-bare-wrap
+      # has no gap. The framework bans (os/vfs, raw HTTP, fmt.Print, filepath,
+      # log) stay scoped to shortcuts/ + internal/ + config/auth/service via the
+      # next rule; elsewhere only errs-no-bare-wrap fires.
+      - path-except: (shortcuts/|internal/|cmd/|events/)
+        linters:
+          - forbidigo
       - path-except: (shortcuts/|internal/|cmd/auth/|cmd/config/|cmd/service/)
+        text: (vfs|IOStreams|ctx\.Out|shortcuts-no-raw-http|filepath functions|os\.Exit|structured error return)
         linters:
           - forbidigo
       - path: internal/vfs/
@@ -65,31 +72,26 @@ linters:
       - path: shortcuts/.*/internal/gen/
         linters:
           - forbidigo
+      # internal/qualitygate/cmd contains standalone CI tools. Their main
+      # entrypoints legitimately own process exit codes and stdio, matching the
+      # old tools/ layout before these packages moved under internal/.
+      - path: internal/qualitygate/cmd/[^/]+/main\.go$
+        linters:
+          - forbidigo
       # shortcuts-no-raw-http is shortcuts-only; internal/ wraps raw HTTP
       # for the client / credential layer.
       - path-except: shortcuts/
         text: shortcuts-no-raw-http
         linters:
           - forbidigo
-      # errs-typed-only enforced on paths already migrated to errs.NewXxxError.
-      # Add a path when its migration is complete.
-      - path-except: (internal/auth/|internal/errcompat/|internal/errclass/|internal/client/|internal/cmdutil/factory\.go|cmd/auth/|cmd/config/|cmd/service/|shortcuts/common/mcp_client\.go|shortcuts/apps/|shortcuts/base/|shortcuts/calendar/|shortcuts/contact/|shortcuts/doc/|shortcuts/drive/|shortcuts/im/|shortcuts/mail/|shortcuts/markdown/|shortcuts/minutes/|shortcuts/okr/|shortcuts/sheets/|shortcuts/slides/|shortcuts/task/|shortcuts/vc/|shortcuts/whiteboard/|shortcuts/wiki/|internal/event/consume/|cmd/event/|events/|shortcuts/event/)
-        text: errs-typed-only
-        linters:
-          - forbidigo
-      # errs-no-bare-wrap enforced on paths fully migrated to typed final
-      # errors. Scoped separately from errs-typed-only because cmd/auth/,
-      # cmd/config/ still have residual fmt.Errorf and must not be caught.
-      - path-except: (shortcuts/apps/|shortcuts/base/|shortcuts/calendar/|shortcuts/contact/|shortcuts/doc/|shortcuts/drive/|shortcuts/im/|shortcuts/mail/|shortcuts/markdown/|shortcuts/minutes/|shortcuts/okr/|shortcuts/sheets/|shortcuts/slides/|shortcuts/task/|shortcuts/vc/|shortcuts/whiteboard/|shortcuts/wiki/|shortcuts/common/mcp_client\.go|cmd/event/|events/|shortcuts/event/)
+      # errs-no-bare-wrap enforced across every command/wire boundary by
+      # structural prefix, so any future business domain or command is covered
+      # without editing an allowlist. Genuine intermediate wraps inside these
+      # paths use //nolint:forbidigo with a reason.
+      - path-except: (cmd/|shortcuts/|events/)
         text: errs-no-bare-wrap
         linters:
           - forbidigo
-      # errs-no-legacy-helper enforced on domains whose shared validation/save
-      # helpers have migrated to typed final errors.
-      - path-except: (shortcuts/apps/|shortcuts/base/|shortcuts/calendar/|shortcuts/contact/|shortcuts/doc/|shortcuts/drive/|shortcuts/im/|shortcuts/mail/|shortcuts/markdown/|shortcuts/minutes/|shortcuts/okr/|shortcuts/sheets/|shortcuts/slides/|shortcuts/task/|shortcuts/vc/|shortcuts/whiteboard/|shortcuts/wiki/|cmd/event/|events/|shortcuts/event/)
-        text: errs-no-legacy-helper
-        linters:
-          - forbidigo
 
   settings:
     depguard:
@@ -108,22 +110,6 @@ linters:
                 Use runtime.FileIO() for file operations or runtime.ValidatePath() for path validation.
     forbidigo:
       forbid:
-        # ── legacy output.Err* helpers banned on migrated paths ──
-        # output.ErrBare is intentionally not listed — it is the predicate-
-        # command silent-exit signal, outside the typed envelope contract.
-        - pattern: output\.(ErrValidation|ErrAuth|ErrNetwork|ErrAPI|ErrWithHint|Errorf)\b
-          msg: >-
-            [errs-typed-only] use errs.NewXxxError(...) builder
-            (see errs/types.go).
-        # ── legacy shared error helpers banned on migrated domains ──
-        # These helpers emit legacy output.Err* / bare error shapes or drop
-        # typed metadata such as Param/Cause. Migrated domains must use typed
-        # common replacements or local typed helpers instead.
-        - pattern: (common\.FlagErrorf|common\.RejectDangerousChars|common\.WrapInputStatError|common\.WrapSaveErrorByCategory)\b
-          msg: >-
-            [errs-no-legacy-helper] these shared helpers emit legacy or
-            metadata-poor error shapes. Use typed common replacements, typed
-            errs.NewXxxError builders, or domain-local typed helpers.
         # ── bare error wraps banned on fully-typed paths ──
         - pattern: (fmt\.Errorf|errors\.New)\b
           msg: >-

AGENTS.md

@@ -141,3 +141,74 @@ CLI arguments are untrusted (they come from AI agents). Call `validate.SafeInput
 | Modify shortcut flags/params | Required | If behavior changes |
 | Shortcut bug fix | Required | If regression risk |
 | Internal refactor (no shortcut impact) | Not needed | Not needed |
+
+
+
+## CCM Harness Skill Routing (v2)
+
+When the user's request matches one of these patterns, invoke the corresponding `/ccm-harness:*` skill via the Skill tool. Skills include multi-step workflows, gates, and quality checks that produce more reliable results than ad-hoc answers. When in doubt, invoke the skill — a false positive is cheaper than a false negative.
+
+### 主链路（spec → idl → dev → release）
+
+| 用户表达 | Skill |
+|---------|-------|
+| "新需求 / 这是个新功能 / 开始一个 req / 写 spec / 起 spec / PRD 来了 / 把 PRD 转 spec / 改 spec / 微调 spec / spec 局部更新 / spec 加一个字段" | `/ccm-harness:draft-spec <req-id> [<arg2>] [--force]`（Phase 0 路由器自动决定 init / generate / update capability）|
+| "review spec / 看 spec / 评审 spec / spec 评审" | `/ccm-harness:spec-review <req-id>` |
+| "生成 thrift / 起 idl / 把 spec 转 thrift" | `/ccm-harness:draft-idl` |
+| "推 thrift / 落 contract / Frozen Spec / codegen / 生成框架代码" | `/ccm-harness:codegen-idl <req-id>` |
+| "实现 spec / 写后端 / 后端开发 / 实现这个功能" | `/ccm-harness:backend-dev <req-id>` |
+| "前端怎么改 / 写前端 / 前端开发 / 前端编码" | `/ccm-harness:frontend-coding <req-id>` |
+| "部署 BOE / 上 PPE / 部署到 feature 环境" | `/ccm-harness:deploy <req-id>` |
+| "提 release / 上线 / 发布 / 走 PRE-GRAY-ONLINE" | `/ccm-harness:release <req-id>` |
+| "触发打包 / build / 起 SCM 编译" | `/ccm-harness:build <repo or psm>` |
+
+### 守护与诊断
+
+| 用户表达 | Skill |
+|---------|-------|
+| "工作流到哪一步了 / 下一步咋走 / 我迷路了" | `/ccm-harness:doctor` |
+| "调试 / debug / 这个 bug 怎么排" | `/ccm-harness:debug` |
+| "查 CI 失败 / CI 跑挂了 / pipeline 红了" | `/ccm-harness:check-ci-failure <mr>` |
+| "检查实现是否符合 spec / 蓝图对比" | `/ccm-harness:check-impl-gap` |
+| "spec 跟代码飘了吗 / drift 检查" | `/ccm-harness:spec-review <req-id> --mode drift` |
+| "Hub 知识跟代码一致吗" | `/ccm-harness:check-knowledge-consistency` |
+| "代码 review / 看 MR / cr 一下" | `/ccm-harness:code-review <mr>` |
+| "设计 review / 看技术方案" | `/ccm-harness:design-review <doc>` |
+
+### 工程辅助
+
+| 用户表达 | Skill |
+|---------|-------|
+| "通知 reviewer / 发 review 卡片" | `/ccm-harness:notify-reviewer <mr>` |
+| "自动修 MR / 按 review 改" | `/ccm-harness:autofix-mr <mr>` |
+| "生成测试用例 / 起 case / 筛选可执行 case / E2E 用例 / Playwright 脚本 / 自动化验收" | `/ccm-harness:test`（路由到 `ccm-e2e-check -> exec-e2e`） |
+| "查 idl / 看 thrift 定义" | `/ccm-harness:lookup-idl <psm>` |
+| "看仓库最近改了啥 / 仓库脉搏" | `/ccm-harness:pulse` |
+
+### 元能力（Skill / Prompt 研发）
+
+| 用户表达 | Skill |
+|---------|-------|
+| "起一个新 skill / 设计 skill" | `/ccm-harness:meta-draft-skill` |
+| "做评测集 / 给 skill 出评测数据" | `/ccm-harness:meta-build-evalset` |
+| "跑评测 / Fornax 实验" | `/ccm-harness:meta-run-eval` |
+| "优化 skill / skill 反馈优化" | `/ccm-harness:meta-optimize-skill` |
+
+### 环境与配置
+
+| 用户表达 | Skill |
+|---------|-------|
+| "升级 ccm-harness / 更新插件" | `/ccm-harness:upgrade` |
+| "看遥测 / 最近的反馈" | `/ccm-harness:show-telemetry` |
+| "清遥测 / 重置 telemetry" | `/ccm-harness:clear-telemetry` |
+| "上报问题 / 提 issue" | `/ccm-harness:report-issue` |
+| "看本地教训 / project learnings / 我们踩过啥" | `/ccm-harness:learn` |
+| "反馈 / 评分这次 skill" | `/ccm-harness:feedback` |
+
+### 使用提示
+
+- **入口**：新需求**必从** `/ccm-harness:draft-spec <req-id>` 开始（Phase 0 路由器自动决定建目录 / 带 PRD 一气呵成）。
+- **不跳步**：spec → idl → dev → release 是流水线，不是菜单——按顺序推进，反向走需要 `/ccm-harness:draft-spec <req-id> "<change-desc>"` 局部修（路由进 update capability）。
+- **横切**：任何阶段发现 spec 要局部改 → `/ccm-harness:draft-spec <req-id> "<change-desc>"`；想检测漂移 → `/ccm-harness:spec-review <req-id> --mode drift`；CI 红 → `/ccm-harness:check-ci-failure`；迷路 → `/ccm-harness:doctor`。
+
+完整流程文档：`docs/user-guide/workflow.md`

CHANGELOG.md

@@ -2,6 +2,69 @@
 
 All notable changes to this project will be documented in this file.
 
+## [v1.0.56] - 2026-06-18
+
+### Features
+
+- **apps**: Add `+session-messages-list` for session turn reply messages (#1402)
+
+### Bug Fixes
+
+- **api**: Align API success envelopes (#1489)
+- **base**: Reject out-of-range pagination flags (#1495)
+
+### Refactor
+
+- Retire legacy error envelopes and enforce typed contract (#1449)
+
+### Documentation
+
+- **skills**: Soften lark-doc style guidance (#1463)
+
+### Build
+
+- Add CI quality gate with semantic review
+
+## [v1.0.55] - 2026-06-16
+
+### Features
+
+- **vc**: Support agent meeting event workflows (#1483)
+- **drive**: Support exporting Base structure snapshots (#1481)
+- **doc**: Add docx cover resource commands (#1468)
+- **doc**: Support `lang` for docx fetch v2 (#1459)
+- **event**: Optimize subscription precheck, links, and consumer guard (#1447)
+
+### Bug Fixes
+
+- **drive**: Validate drive import folder target (#1485)
+
+## [v1.0.54] - 2026-06-15
+
+### Features
+
+- **mail**: Auto-attach default signature on send/reply/forward (#1415)
+- **drive**: Support `original_creator_ids` filter in search (#1046)
+- **cli**: Simplify proxy plugin warning and gate it on TTY (#1448)
+
+### Bug Fixes
+
+- **doc**: Fix docs fetch and update ergonomics (#1466)
+- **vfs**: Reject blank local paths (#1460)
+- **vfs**: Reject Windows absolute paths cross-platform (#1401)
+- **event**: Clarify remote bus blocker recovery (#1454)
+
+### Refactor
+
+- Converge command pipelines onto a typed metadata model + catalog (#1191)
+
+### Documentation
+
+- **im**: Document `@mention` format per message type (text/post/card) (#1419)
+- **doc**: Clarify lark-doc create title guidance (#1474)
+- **skills**: Add rename prompt for import without `--name` (#1461)
+- **apps**: Drop Miaoda brand word from apps command help text (#1399)
+
 ## [v1.0.53] - 2026-06-12
 
 ### Features
@@ -1149,6 +1212,9 @@ Bundled AI agent skills for intelligent assistance:
 - Bilingual documentation (English & Chinese).
 - CI/CD pipelines: linting, testing, coverage reporting, and automated releases.
 
+[v1.0.56]: https://github.com/larksuite/cli/releases/tag/v1.0.56
+[v1.0.55]: https://github.com/larksuite/cli/releases/tag/v1.0.55
+[v1.0.54]: https://github.com/larksuite/cli/releases/tag/v1.0.54
 [v1.0.53]: https://github.com/larksuite/cli/releases/tag/v1.0.53
 [v1.0.52]: https://github.com/larksuite/cli/releases/tag/v1.0.52
 [v1.0.51]: https://github.com/larksuite/cli/releases/tag/v1.0.51

CLAUDE.md

@@ -0,0 +1,69 @@
+
+## CCM Harness Skill Routing (v2)
+
+When the user's request matches one of these patterns, invoke the corresponding `/ccm-harness:*` skill via the Skill tool. Skills include multi-step workflows, gates, and quality checks that produce more reliable results than ad-hoc answers. When in doubt, invoke the skill — a false positive is cheaper than a false negative.
+
+### 主链路（spec → idl → dev → release）
+
+| 用户表达 | Skill |
+|---------|-------|
+| "新需求 / 这是个新功能 / 开始一个 req / 写 spec / 起 spec / PRD 来了 / 把 PRD 转 spec / 改 spec / 微调 spec / spec 局部更新 / spec 加一个字段" | `/ccm-harness:draft-spec <req-id> [<arg2>] [--force]`（Phase 0 路由器自动决定 init / generate / update capability）|
+| "review spec / 看 spec / 评审 spec / spec 评审" | `/ccm-harness:spec-review <req-id>` |
+| "生成 thrift / 起 idl / 把 spec 转 thrift" | `/ccm-harness:draft-idl` |
+| "推 thrift / 落 contract / Frozen Spec / codegen / 生成框架代码" | `/ccm-harness:codegen-idl <req-id>` |
+| "实现 spec / 写后端 / 后端开发 / 实现这个功能" | `/ccm-harness:backend-dev <req-id>` |
+| "前端怎么改 / 写前端 / 前端开发 / 前端编码" | `/ccm-harness:frontend-coding <req-id>` |
+| "部署 BOE / 上 PPE / 部署到 feature 环境" | `/ccm-harness:deploy <req-id>` |
+| "提 release / 上线 / 发布 / 走 PRE-GRAY-ONLINE" | `/ccm-harness:release <req-id>` |
+| "触发打包 / build / 起 SCM 编译" | `/ccm-harness:build <repo or psm>` |
+
+### 守护与诊断
+
+| 用户表达 | Skill |
+|---------|-------|
+| "工作流到哪一步了 / 下一步咋走 / 我迷路了" | `/ccm-harness:doctor` |
+| "调试 / debug / 这个 bug 怎么排" | `/ccm-harness:debug` |
+| "查 CI 失败 / CI 跑挂了 / pipeline 红了" | `/ccm-harness:check-ci-failure <mr>` |
+| "检查实现是否符合 spec / 蓝图对比" | `/ccm-harness:check-impl-gap` |
+| "spec 跟代码飘了吗 / drift 检查" | `/ccm-harness:spec-review <req-id> --mode drift` |
+| "Hub 知识跟代码一致吗" | `/ccm-harness:check-knowledge-consistency` |
+| "代码 review / 看 MR / cr 一下" | `/ccm-harness:code-review <mr>` |
+| "设计 review / 看技术方案" | `/ccm-harness:design-review <doc>` |
+
+### 工程辅助
+
+| 用户表达 | Skill |
+|---------|-------|
+| "通知 reviewer / 发 review 卡片" | `/ccm-harness:notify-reviewer <mr>` |
+| "自动修 MR / 按 review 改" | `/ccm-harness:autofix-mr <mr>` |
+| "生成测试用例 / 起 case / 筛选可执行 case / E2E 用例 / Playwright 脚本 / 自动化验收" | `/ccm-harness:test`（路由到 `ccm-e2e-check -> exec-e2e`） |
+| "查 idl / 看 thrift 定义" | `/ccm-harness:lookup-idl <psm>` |
+| "看仓库最近改了啥 / 仓库脉搏" | `/ccm-harness:pulse` |
+
+### 元能力（Skill / Prompt 研发）
+
+| 用户表达 | Skill |
+|---------|-------|
+| "起一个新 skill / 设计 skill" | `/ccm-harness:meta-draft-skill` |
+| "做评测集 / 给 skill 出评测数据" | `/ccm-harness:meta-build-evalset` |
+| "跑评测 / Fornax 实验" | `/ccm-harness:meta-run-eval` |
+| "优化 skill / skill 反馈优化" | `/ccm-harness:meta-optimize-skill` |
+
+### 环境与配置
+
+| 用户表达 | Skill |
+|---------|-------|
+| "升级 ccm-harness / 更新插件" | `/ccm-harness:upgrade` |
+| "看遥测 / 最近的反馈" | `/ccm-harness:show-telemetry` |
+| "清遥测 / 重置 telemetry" | `/ccm-harness:clear-telemetry` |
+| "上报问题 / 提 issue" | `/ccm-harness:report-issue` |
+| "看本地教训 / project learnings / 我们踩过啥" | `/ccm-harness:learn` |
+| "反馈 / 评分这次 skill" | `/ccm-harness:feedback` |
+
+### 使用提示
+
+- **入口**：新需求**必从** `/ccm-harness:draft-spec <req-id>` 开始（Phase 0 路由器自动决定建目录 / 带 PRD 一气呵成）。
+- **不跳步**：spec → idl → dev → release 是流水线，不是菜单——按顺序推进，反向走需要 `/ccm-harness:draft-spec <req-id> "<change-desc>"` 局部修（路由进 update capability）。
+- **横切**：任何阶段发现 spec 要局部改 → `/ccm-harness:draft-spec <req-id> "<change-desc>"`；想检测漂移 → `/ccm-harness:spec-review <req-id> --mode drift`；CI 红 → `/ccm-harness:check-ci-failure`；迷路 → `/ccm-harness:doctor`。
+
+完整流程文档：`docs/user-guide/workflow.md`

Makefile

@@ -5,6 +5,13 @@ BINARY   := lark-cli
 MODULE   := github.com/larksuite/cli
 VERSION  := $(shell git describe --tags --always --dirty 2>/dev/null || echo dev)
 DATE     := $(shell date +%Y-%m-%d)
+NODE     ?= node
+QUALITY_GATE_CHANGED_FROM ?= $(shell bash scripts/resolve-changed-from.sh)
+QUALITY_GATE_CHANGED_FROM_RESOLVED = $(if $(strip $(QUALITY_GATE_CHANGED_FROM)),$(QUALITY_GATE_CHANGED_FROM),$(shell bash scripts/resolve-changed-from.sh))
+QUALITY_GATE_DIR ?= .tmp/quality-gate
+QUALITY_GATE_MANIFEST_OUT ?= $(QUALITY_GATE_DIR)/command-manifest.json
+QUALITY_GATE_COMMAND_INDEX_OUT ?= $(QUALITY_GATE_DIR)/command-index.json
+QUALITY_GATE_FACTS_OUT ?= $(QUALITY_GATE_DIR)/facts.json
 LDFLAGS  := -s -w -X $(MODULE)/internal/build.Version=$(VERSION) -X $(MODULE)/internal/build.Date=$(DATE)
 PREFIX   ?= /usr/local
 
@@ -15,7 +22,7 @@ PREFIX   ?= /usr/local
 TEST_GOARCH := $(or $(GOARCH),$(shell go env GOARCH))
 RACE_FLAG := $(if $(filter riscv64,$(TEST_GOARCH)),,-race)
 
-.PHONY: all build vet fmt-check test unit-test integration-test examples-build install uninstall clean fetch_meta gitleaks
+.PHONY: all build vet fmt-check script-test test unit-test integration-test examples-build quality-gate install uninstall clean fetch_meta gitleaks
 
 all: test
 
@@ -39,6 +46,12 @@ fmt-check:
 		exit 1; \
 	fi
 
+script-test:
+	bash scripts/resolve-changed-from.test.sh
+	bash scripts/ci-workflow.test.sh
+	bash scripts/semantic-review-workflow.test.sh
+	$(NODE) --test scripts/semantic-review-verify-artifact.test.js scripts/pr-quality-summary.test.js scripts/semantic-review-publish.test.js scripts/ci-quality-summary-publish.test.js
+
 # ./extension/... keeps the public plugin SDK in the default test matrix.
 unit-test: fetch_meta
 	go test $(RACE_FLAG) -gcflags="all=-N -l" -count=1 \
@@ -53,7 +66,30 @@ examples-build:
 integration-test: build
 	go test -v -count=1 ./tests/...
 
-test: vet fmt-check unit-test examples-build integration-test
+test: vet fmt-check script-test unit-test examples-build integration-test
+
+quality-gate: build
+	mkdir -p $(QUALITY_GATE_DIR) $(dir $(QUALITY_GATE_FACTS_OUT))
+	LARKSUITE_CLI_REMOTE_META=off \
+	LARKSUITE_CLI_NO_UPDATE_NOTIFIER=1 \
+	LARKSUITE_CLI_NO_SKILLS_NOTIFIER=1 \
+	go run ./internal/qualitygate/cmd/manifest-export \
+		--manifest-out $(QUALITY_GATE_MANIFEST_OUT) \
+		--command-index-out $(QUALITY_GATE_COMMAND_INDEX_OUT)
+	LARKSUITE_CLI_APP_ID=dry-run \
+	LARKSUITE_CLI_APP_SECRET=dry-run \
+	LARKSUITE_CLI_BRAND=feishu \
+	LARKSUITE_CLI_CONFIG_DIR=$${TMPDIR:-/tmp}/quality-gate-cli-config \
+	LARKSUITE_CLI_REMOTE_META=off \
+	LARKSUITE_CLI_NO_UPDATE_NOTIFIER=1 \
+	LARKSUITE_CLI_NO_SKILLS_NOTIFIER=1 \
+	go run ./internal/qualitygate/cmd/quality-gate check \
+		--repo . \
+		--cli-bin ./$(BINARY) \
+		--changed-from $(QUALITY_GATE_CHANGED_FROM_RESOLVED) \
+		--manifest $(QUALITY_GATE_MANIFEST_OUT) \
+		--command-index $(QUALITY_GATE_COMMAND_INDEX_OUT) \
+		--facts-out $(QUALITY_GATE_FACTS_OUT)
 
 install: build
 	install -d $(PREFIX)/bin

cmd/api/api.go

@@ -10,6 +10,7 @@ import (
 	"regexp"
 	"strings"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/client"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -123,7 +124,13 @@ func buildAPIRequest(opts *APIOptions) (client.RawApiRequest, *cmdutil.FileUploa
 
 	// stdin conflict: --params and --data cannot both read from stdin, regardless of --file.
 	if opts.Params == "-" && opts.Data == "-" {
-		return client.RawApiRequest{}, nil, output.ErrValidation("--params and --data cannot both read from stdin (-)")
+		return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"--params and --data cannot both read from stdin (-)").
+			WithHint("pass at most one flag as '-'; give the other inline JSON or @file").
+			WithParams(
+				errs.InvalidParam{Name: "--params", Reason: "reads from stdin (-)"},
+				errs.InvalidParam{Name: "--data", Reason: "reads from stdin (-)"},
+			)
 	}
 
 	params, err := cmdutil.ParseJSONMap(opts.Params, "--params", stdin, fileIO)
@@ -153,7 +160,10 @@ func buildAPIRequest(opts *APIOptions) (client.RawApiRequest, *cmdutil.FileUploa
 				return client.RawApiRequest{}, nil, err
 			}
 			if _, ok := dataFields.(map[string]any); !ok {
-				return client.RawApiRequest{}, nil, output.ErrValidation("--data must be a JSON object when used with --file")
+				return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+					"--data must be a JSON object when used with --file").
+					WithHint(`with --file, --data carries multipart form fields, e.g. --data '{"image_type":"message"}'`).
+					WithParam("--data")
 			}
 		}
 
@@ -196,7 +206,13 @@ func apiRun(opts *APIOptions) error {
 	}
 
 	if opts.PageAll && opts.Output != "" {
-		return output.ErrValidation("--output and --page-all are mutually exclusive")
+		return errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"--output and --page-all are mutually exclusive").
+			WithHint("drop --page-all to save a binary response, or drop --output to paginate JSON").
+			WithParams(
+				errs.InvalidParam{Name: "--output", Reason: "conflicts with --page-all"},
+				errs.InvalidParam{Name: "--page-all", Reason: "conflicts with --output"},
+			)
 	}
 	if err := output.ValidateJqFlags(opts.JqExpr, opts.Output, opts.Format); err != nil {
 		return err
@@ -233,7 +249,7 @@ func apiRun(opts *APIOptions) error {
 	}
 
 	if opts.PageAll {
-		return apiPaginate(opts.Ctx, ac, request, format, opts.JqExpr, out, f.IOStreams.ErrOut,
+		return apiPaginate(opts.Ctx, ac, request, format, opts.JqExpr, out, f.IOStreams.ErrOut, opts.Cmd.CommandPath(),
 			client.PaginationOptions{PageLimit: opts.PageLimit, PageDelay: opts.PageDelay})
 	}
 
@@ -243,7 +259,7 @@ func apiRun(opts *APIOptions) error {
 		// pass on *output.ExitError values. Typed *errs.* errors that flow
 		// through here keep their canonical message / hint from BuildAPIError;
 		// MarkRaw is a no-op on those (it only flips a flag on *ExitError).
-		return output.MarkRaw(err)
+		return errs.MarkRaw(err)
 	}
 	err = client.HandleResponse(resp, client.ResponseOptions{
 		OutputPath:  opts.Output,
@@ -263,7 +279,7 @@ func apiRun(opts *APIOptions) error {
 	// MarkRaw: see comment above on the DoAPI path. Skips legacy
 	// *ExitError enrichment; typed errors flow through unchanged.
 	if err != nil {
-		return output.MarkRaw(err)
+		return errs.MarkRaw(err)
 	}
 	return nil
 }
@@ -272,46 +288,76 @@ func apiDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.Cl
 	return cmdutil.PrintDryRun(f.IOStreams.Out, request, config, format)
 }
 
-func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawApiRequest, format output.Format, jqExpr string, out, errOut io.Writer, pagOpts client.PaginationOptions) error {
+func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawApiRequest, format output.Format, jqExpr string, out, errOut io.Writer, commandPath string, pagOpts client.PaginationOptions) error {
 	if pagOpts.Identity == "" {
 		pagOpts.Identity = request.As
 	}
 	// When jq is set, always aggregate all pages then filter.
 	if jqExpr != "" {
-		if err := client.PaginateWithJq(ctx, ac, request, jqExpr, out, pagOpts, ac.CheckResponse); err != nil {
-			return output.MarkRaw(err)
+		result, err := ac.PaginateAll(ctx, request, pagOpts)
+		if err != nil {
+			return errs.MarkRaw(err)
 		}
-		return nil
+		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
+			output.FormatValue(out, result, output.FormatJSON)
+			return errs.MarkRaw(apiErr)
+		}
+		return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+			CommandPath: commandPath,
+			Identity:    string(pagOpts.Identity),
+			JqExpr:      jqExpr,
+			Out:         out,
+			ErrOut:      errOut,
+		})
 	}
 
 	switch format {
 	case output.FormatNDJSON, output.FormatTable, output.FormatCSV:
 		pf := output.NewPaginatedFormatter(out, format)
-		result, hasItems, err := ac.StreamPages(ctx, request, func(items []interface{}) {
+		result, hasItems, err := ac.StreamPages(ctx, request, func(items []interface{}) error {
+			// Streaming formats intentionally emit each page after that page has
+			// passed safety scanning. A later page may still fail, so callers
+			// must use the exit code to distinguish complete vs partial output.
+			scanResult := output.ScanForSafety(commandPath, items, errOut)
+			if scanResult.Blocked {
+				return scanResult.BlockErr
+			}
+			if scanResult.Alert != nil {
+				output.WriteAlertWarning(errOut, scanResult.Alert)
+			}
 			pf.FormatPage(items)
+			return nil
 		}, pagOpts)
 		if err != nil {
-			return output.MarkRaw(err)
+			return errs.MarkRaw(err)
 		}
 		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
-			output.FormatValue(out, result, output.FormatJSON)
-			return output.MarkRaw(apiErr)
+			return errs.MarkRaw(apiErr)
 		}
 		if !hasItems {
 			fmt.Fprintf(errOut, "warning: this API does not return a list, format %q is not supported, falling back to json\n", format)
-			output.FormatValue(out, result, output.FormatJSON)
+			return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+				CommandPath: commandPath,
+				Identity:    string(pagOpts.Identity),
+				Out:         out,
+				ErrOut:      errOut,
+			})
 		}
 		return nil
 	default:
 		result, err := ac.PaginateAll(ctx, request, pagOpts)
 		if err != nil {
-			return output.MarkRaw(err)
+			return errs.MarkRaw(err)
 		}
 		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
 			output.FormatValue(out, result, output.FormatJSON)
-			return output.MarkRaw(apiErr)
+			return errs.MarkRaw(apiErr)
 		}
-		output.FormatValue(out, result, format)
-		return nil
+		return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+			CommandPath: commandPath,
+			Identity:    string(pagOpts.Identity),
+			Out:         out,
+			ErrOut:      errOut,
+		})
 	}
 }

cmd/api/api_test.go

@@ -4,6 +4,8 @@
 package api
 
 import (
+	"context"
+	"encoding/json"
 	"errors"
 	"os"
 	"sort"
@@ -11,6 +13,7 @@ import (
 	"testing"
 
 	"github.com/larksuite/cli/errs"
+	extcs "github.com/larksuite/cli/extension/contentsafety"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/httpmock"
@@ -66,6 +69,24 @@ func TestApiCmd_DryRun(t *testing.T) {
 	}
 }
 
+// Regression: --params null parses to a nil map; writing page_size onto it must
+// not panic. Symmetric to the typed-flag overlay path in cmd/service — both
+// write into the map ParseJSONMap returns.
+func TestApiCmd_NullParamsWithPageSize(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	cmd := NewCmdApi(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/test", "--params", "null", "--page-size", "50", "--as", "bot", "--dry-run"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("--params null with --page-size should not error, got: %v", err)
+	}
+	if out := stdout.String(); !strings.Contains(out, "page_size") {
+		t.Errorf("expected page_size applied over null --params, got:\n%s", out)
+	}
+}
+
 func TestApiCmd_BotMode(t *testing.T) {
 	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
@@ -83,8 +104,19 @@ func TestApiCmd_BotMode(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	if !strings.Contains(stdout.String(), "success") {
-		t.Error("expected 'success' in output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	if got["ok"] != true || got["identity"] != "bot" {
+		t.Fatalf("unexpected envelope: %#v", got)
+	}
+	if _, hasCode := got["code"]; hasCode {
+		t.Fatalf("success envelope leaked outer code: %s", stdout.String())
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok || data["result"] != "success" {
+		t.Fatalf("data = %#v, want result=success", got["data"])
 	}
 }
 
@@ -310,8 +342,16 @@ func TestApiCmd_PageAll_NonBatchAPI_FallbackToJSON(t *testing.T) {
 		t.Error("expected 'falling back to json' in stderr")
 	}
 	// Should output JSON result to stdout
-	if !strings.Contains(stdout.String(), "u123") {
-		t.Error("expected user_id in JSON output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if got["ok"] != true || got["identity"] != "bot" || !ok || data["user_id"] != "u123" {
+		t.Fatalf("unexpected fallback envelope: %#v", got)
+	}
+	if _, hasCode := got["code"]; hasCode {
+		t.Fatalf("fallback success envelope leaked outer code: %s", stdout.String())
 	}
 }
 
@@ -324,7 +364,7 @@ func TestApiCmd_PageAll_NonBatchAPI_ErrorStillOutputsJSON(t *testing.T) {
 	reg.Register(&httpmock.Stub{
 		URL: "/open-apis/im/v1/chats/oc_xxx/announcement",
 		Body: map[string]interface{}{
-			"code": 230001, "msg": "no permission",
+			"code": 230027, "msg": "user not authorized",
 		},
 	})
 
@@ -336,12 +376,20 @@ func TestApiCmd_PageAll_NonBatchAPI_ErrorStillOutputsJSON(t *testing.T) {
 		t.Fatal("expected an error for non-zero code")
 	}
 	// Should still output the response body so user can see the error details
-	if !strings.Contains(stdout.String(), "230001") {
+	if !strings.Contains(stdout.String(), "230027") {
 		t.Errorf("expected error response in stdout, got: %s", stdout.String())
 	}
-	if !strings.Contains(stdout.String(), "no permission") {
+	if !strings.Contains(stdout.String(), "user not authorized") {
 		t.Errorf("expected error message in stdout, got: %s", stdout.String())
 	}
+	if strings.Contains(stdout.String(), `"ok": true`) || strings.Contains(stdout.String(), `"ok":true`) {
+		t.Fatalf("unexpected success envelope on error path: %s", stdout.String())
+	}
+	requireProblem(t, err, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 230027)
+	var permErr *errs.PermissionError
+	if !errors.As(err, &permErr) {
+		t.Fatalf("expected PermissionError, got %T: %v", err, err)
+	}
 }
 
 func TestApiCmd_PageAll_BatchAPI_StreamsItems(t *testing.T) {
@@ -377,6 +425,274 @@ func TestApiCmd_PageAll_BatchAPI_StreamsItems(t *testing.T) {
 	}
 }
 
+func TestApiCmd_PageAll_StreamBusinessErrorDoesNotDumpJSON(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pageall-stream-err", AppSecret: "test-secret-pageall-stream-err", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":      []interface{}{map[string]interface{}{"id": "safe-page"}},
+				"has_more":   true,
+				"page_token": "next",
+			},
+		},
+	})
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 230027, "msg": "user not authorized",
+		},
+	})
+
+	cmd := NewCmdApi(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/contact/v3/users", "--as", "bot", "--page-all", "--format", "ndjson"})
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error for non-zero code on later page")
+	}
+	requireProblem(t, err, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 230027)
+	out := stdout.String()
+	if !strings.Contains(out, "safe-page") {
+		t.Fatalf("expected earlier successful page to remain streamed, got: %s", out)
+	}
+	if strings.Contains(out, "230027") || strings.Contains(out, "user not authorized") {
+		t.Fatalf("streaming stdout should not contain raw error JSON, got: %s", out)
+	}
+	if strings.Contains(out, "\n  \"code\"") {
+		t.Fatalf("streaming stdout should not contain indented JSON error dump, got: %s", out)
+	}
+}
+
+func TestApiCmd_PageAll_BatchAPI_DefaultJSONEnvelope(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pageall-json", AppSecret: "test-secret-pageall-json", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	cmd := NewCmdApi(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/contact/v3/users", "--as", "bot", "--page-all"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if got["ok"] != true || got["identity"] != "bot" || !ok {
+		t.Fatalf("unexpected envelope: %#v", got)
+	}
+	if _, hasCode := got["code"]; hasCode {
+		t.Fatalf("success envelope leaked outer code: %s", stdout.String())
+	}
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("data.items = %#v, want one item", data["items"])
+	}
+}
+
+type apiContentSafetyProvider struct {
+	called bool
+	path   string
+	data   interface{}
+	match  string
+}
+
+func (p *apiContentSafetyProvider) Name() string { return "api-test" }
+
+func (p *apiContentSafetyProvider) Scan(_ context.Context, req extcs.ScanRequest) (*extcs.Alert, error) {
+	p.called = true
+	p.path = req.Path
+	p.data = req.Data
+	if p.match != "" {
+		b, _ := json.Marshal(req.Data)
+		if !strings.Contains(string(b), p.match) {
+			return nil, nil
+		}
+	}
+	return &extcs.Alert{Provider: "api-test", MatchedRules: []string{"pagination"}}, nil
+}
+
+func TestApiCmd_PageAll_DefaultJSONRunsContentSafety(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "warn")
+	provider := &apiContentSafetyProvider{}
+	extcs.Register(provider)
+	t.Cleanup(func() { extcs.Register(nil) })
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pageall-safety", AppSecret: "test-secret-pageall-safety", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	root := &cobra.Command{Use: "lark-cli"}
+	root.AddCommand(NewCmdApi(f, nil))
+	root.SetArgs([]string{"api", "GET", "/open-apis/contact/v3/users", "--as", "bot", "--page-all"})
+	if err := root.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !provider.called {
+		t.Fatal("expected content safety provider to scan paginated output")
+	}
+	if provider.path != "api" {
+		t.Fatalf("scan path = %q, want api", provider.path)
+	}
+	data, ok := provider.data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("scanned data type = %T, want map", provider.data)
+	}
+	if _, hasCode := data["code"]; hasCode {
+		t.Fatalf("scanned data should be business data only, got %#v", data)
+	}
+
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	alert, ok := got["_content_safety_alert"].(map[string]interface{})
+	if !ok || alert["provider"] != "api-test" {
+		t.Fatalf("missing content safety alert in envelope: %#v", got)
+	}
+}
+
+func TestApiCmd_PageAll_StreamFormatRunsContentSafety(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "warn")
+	provider := &apiContentSafetyProvider{}
+	extcs.Register(provider)
+	t.Cleanup(func() { extcs.Register(nil) })
+
+	f, stdout, stderr, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pageall-stream-safety", AppSecret: "test-secret-pageall-stream-safety", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	root := &cobra.Command{Use: "lark-cli"}
+	root.AddCommand(NewCmdApi(f, nil))
+	root.SetArgs([]string{"api", "GET", "/open-apis/contact/v3/users", "--as", "bot", "--page-all", "--format", "ndjson"})
+	if err := root.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !provider.called {
+		t.Fatal("expected content safety provider to scan streamed paginated output")
+	}
+	if provider.path != "api" {
+		t.Fatalf("scan path = %q, want api", provider.path)
+	}
+	items, ok := provider.data.([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("scanned data = %#v, want one streamed item", provider.data)
+	}
+	if !strings.Contains(stderr.String(), "warning: content safety alert from api-test") {
+		t.Fatalf("expected content safety warning on stderr, got: %s", stderr.String())
+	}
+	if !strings.Contains(stdout.String(), `"id":"1"`) {
+		t.Fatalf("expected streamed ndjson output, got: %s", stdout.String())
+	}
+}
+
+func TestApiCmd_PageAll_StreamFormatBlockSkipsBlockedPage(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "block")
+	provider := &apiContentSafetyProvider{match: "blocked"}
+	extcs.Register(provider)
+	t.Cleanup(func() { extcs.Register(nil) })
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pageall-stream-block", AppSecret: "test-secret-pageall-stream-block", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":      []interface{}{map[string]interface{}{"id": "safe-page"}},
+				"has_more":   true,
+				"page_token": "next",
+			},
+		},
+	})
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "blocked-page"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	root := &cobra.Command{Use: "lark-cli"}
+	root.AddCommand(NewCmdApi(f, nil))
+	root.SetArgs([]string{"api", "GET", "/open-apis/contact/v3/users", "--as", "bot", "--page-all", "--format", "ndjson"})
+	err := root.Execute()
+	if err == nil {
+		t.Fatal("expected content safety block error")
+	}
+	var safetyErr *errs.ContentSafetyError
+	if !errors.As(err, &safetyErr) {
+		t.Fatalf("expected ContentSafetyError, got %T: %v", err, err)
+	}
+	if safetyErr.Category != errs.CategoryPolicy || safetyErr.Subtype != errs.SubtypeContentSafety {
+		t.Fatalf("problem = %s/%s, want %s/%s", safetyErr.Category, safetyErr.Subtype, errs.CategoryPolicy, errs.SubtypeContentSafety)
+	}
+	if len(safetyErr.Rules) != 1 || safetyErr.Rules[0] != "pagination" {
+		t.Fatalf("rules = %v, want [pagination]", safetyErr.Rules)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "safe-page") {
+		t.Fatalf("expected earlier safe page to remain streamed, got: %s", out)
+	}
+	if strings.Contains(out, "blocked-page") {
+		t.Fatalf("blocked page was written before safety block: %s", out)
+	}
+}
+
+func requireProblem(t *testing.T, err error, category errs.Category, subtype errs.Subtype, code int) {
+	t.Helper()
+	p, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("expected typed error, got %T: %v", err, err)
+	}
+	if p.Category != category || p.Subtype != subtype || p.Code != code {
+		t.Fatalf("problem = %s/%s/%d, want %s/%s/%d", p.Category, p.Subtype, p.Code, category, subtype, code)
+	}
+}
+
 func TestNormalisePath_StripsQueryAndFragment(t *testing.T) {
 	for _, tt := range []struct {
 		name string

cmd/auth/check_test.go

@@ -33,12 +33,9 @@ func TestAuthCheckRun_NotLoggedIn_ExitOneWithStdoutOnly(t *testing.T) {
 	if got := output.ExitCodeOf(err); got != 1 {
 		t.Errorf("exit code = %d, want 1 (predicate 'missing' signal)", got)
 	}
-	var bare *output.ExitError
+	var bare *output.BareError
 	if !errors.As(err, &bare) {
-		t.Fatalf("expected *output.ExitError (ErrBare), got %T: %v", err, err)
-	}
-	if bare.Detail != nil {
-		t.Errorf("ErrBare must carry no Detail (no envelope), got %+v", bare.Detail)
+		t.Fatalf("expected *output.BareError (ErrBare), got %T: %v", err, err)
 	}
 
 	if stderr.Len() != 0 {

cmd/auth/list.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -59,7 +60,7 @@ func authListRun(opts *ListOptions) error {
 		// keep the same contract here. We still want the hint to be
 		// workspace-aware, so we pull the message+hint out of
 		// NotConfiguredError() instead of hard-coding it.
-		var cfgErr *core.ConfigError
+		var cfgErr *errs.ConfigError
 		if errors.As(core.NotConfiguredError(), &cfgErr) {
 			fmt.Fprintln(f.IOStreams.ErrOut, cfgErr.Message)
 			if cfgErr.Hint != "" {

cmd/auth/login_interactive.go

@@ -92,16 +92,11 @@ func buildDomainMeta(name, lang string) domainMeta {
 			Description: desc,
 		}
 	}
-	// Fallback: read from from_meta spec (legacy)
-	meta := registry.LoadFromMeta(name)
+	// Fallback: read from the typed service spec (legacy)
 	dm := domainMeta{Name: name}
-	if meta != nil {
-		if t, ok := meta["title"].(string); ok {
-			dm.Title = t
-		}
-		if d, ok := meta["description"].(string); ok {
-			dm.Description = d
-		}
+	if svc, ok := registry.ServiceTyped(name); ok {
+		dm.Title = svc.Title
+		dm.Description = svc.Description
 	}
 	return dm
 }

cmd/auth/login_test.go

@@ -878,7 +878,7 @@ func TestAuthLoginRun_DeviceCodeTokenNilCleansScopeCache(t *testing.T) {
 // contract that when --json is set and pollDeviceToken returns OK=false,
 // stdout carries the structured authorization_failed event and stderr is
 // NOT polluted with a typed envelope. The returned error is a bare
-// ExitError with ExitAuth so the dispatcher only propagates the exit code
+// BareError with ExitAuth so the dispatcher only propagates the exit code
 // without emitting a second envelope on top of the JSON event.
 func TestAuthLoginRun_JSONAbort_StdoutEventOnly_StderrEmpty(t *testing.T) {
 	keyring.MockInit()
@@ -945,16 +945,13 @@ func TestAuthLoginRun_JSONAbort_StdoutEventOnly_StderrEmpty(t *testing.T) {
 		t.Errorf("stderr should not contain JSON envelope fields, got: %s", stderrStr)
 	}
 
-	// Returned error must be the bare *output.ExitError signal (no envelope).
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
+	// Returned error must be the bare *output.BareError signal (no envelope).
+	var bareErr *output.BareError
+	if !errors.As(err, &bareErr) {
+		t.Fatalf("expected *output.BareError, got %T: %v", err, err)
 	}
-	if exitErr.Code != output.ExitAuth {
-		t.Fatalf("ExitError.Code = %d, want %d", exitErr.Code, output.ExitAuth)
-	}
-	if exitErr.Detail != nil {
-		t.Errorf("ExitError.Detail should be nil for bare signal, got: %+v", exitErr.Detail)
+	if bareErr.Code != output.ExitAuth {
+		t.Fatalf("BareError.Code = %d, want %d", bareErr.Code, output.ExitAuth)
 	}
 }
 

cmd/build.go

@@ -20,6 +20,7 @@ import (
 	"github.com/larksuite/cli/cmd/skill"
 	cmdupdate "github.com/larksuite/cli/cmd/update"
 	_ "github.com/larksuite/cli/events"
+	"github.com/larksuite/cli/internal/apicatalog"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -33,9 +34,13 @@ import (
 type BuildOption func(*buildConfig)
 
 type buildConfig struct {
-	streams  *cmdutil.IOStreams
-	keychain keychain.KeychainAccess
-	globals  GlobalOptions
+	streams        *cmdutil.IOStreams
+	keychain       keychain.KeychainAccess
+	globals        GlobalOptions
+	skipPlugins    bool
+	skipStrictMode bool
+	skipService    bool
+	serviceCatalog *apicatalog.Catalog
 }
 
 // WithIO sets the IO streams for the CLI by wrapping raw reader/writers.
@@ -75,6 +80,41 @@ func HideProfile(hide bool) BuildOption {
 	}
 }
 
+// WithoutPlugins builds only repository-owned commands. It is intended for
+// inspection tools that need a deterministic command tree.
+func WithoutPlugins() BuildOption {
+	return func(c *buildConfig) {
+		c.skipPlugins = true
+	}
+}
+
+// WithoutStrictMode builds the complete repository-owned command tree without
+// applying user/profile strict-mode pruning. It is intended for offline
+// inspection tools, not production execution.
+func WithoutStrictMode() BuildOption {
+	return func(c *buildConfig) {
+		c.skipStrictMode = true
+	}
+}
+
+// WithoutServiceCommands builds only hand-authored commands. It is intended for
+// repository quality gates that should not depend on the remote OpenAPI
+// metadata command surface.
+func WithoutServiceCommands() BuildOption {
+	return func(c *buildConfig) {
+		c.skipService = true
+	}
+}
+
+// WithServiceCatalog builds generated service commands from a specific metadata
+// catalog. It is intended for offline inspection tools that need deterministic
+// embedded metadata while production execution keeps using the runtime catalog.
+func WithServiceCatalog(catalog apicatalog.Catalog) BuildOption {
+	return func(c *buildConfig) {
+		c.serviceCatalog = &catalog
+	}
+}
+
 // Build constructs the full command tree. It also installs registered
 // plugins and emits the Startup lifecycle event during assembly --
 // so Plugin.On(Startup) handlers run even if the returned command is
@@ -156,15 +196,26 @@ func buildInternal(ctx context.Context, inv cmdutil.InvocationContext, opts ...B
 	rootCmd.AddCommand(cmdupdate.NewCmdUpdate(f))
 	rootCmd.AddCommand(cmdevent.NewCmdEvents(f))
 	rootCmd.AddCommand(skill.NewCmdSkill(f))
-	service.RegisterServiceCommandsWithContext(ctx, rootCmd, f)
+	if !cfg.skipService {
+		if cfg.serviceCatalog != nil {
+			service.RegisterServiceCommandsFromCatalog(ctx, rootCmd, f, *cfg.serviceCatalog)
+		} else {
+			service.RegisterServiceCommandsWithContext(ctx, rootCmd, f)
+		}
+	}
 	shortcuts.RegisterShortcutsWithContext(ctx, rootCmd, f)
 
 	installUnknownSubcommandGuard(rootCmd)
 
-	if mode := f.ResolveStrictMode(ctx); mode.IsActive() {
+	if mode := f.ResolveStrictMode(ctx); mode.IsActive() && !cfg.skipStrictMode {
 		pruneForStrictMode(rootCmd, mode)
 	}
 
+	if cfg.skipPlugins {
+		recordInventory(nil)
+		return f, rootCmd, nil
+	}
+
 	installResult, installErr := installPluginsAndHooks(cfg.streams.ErrOut)
 	if installErr != nil {
 		installPluginInstallErrorGuard(rootCmd, installErr)

cmd/build_test.go

@@ -0,0 +1,46 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"context"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/spf13/cobra"
+)
+
+func TestBuildWithoutPluginsStillBuildsBuiltinCommands(t *testing.T) {
+	root := Build(context.Background(), cmdutil.InvocationContext{}, WithoutPlugins())
+
+	if root == nil {
+		t.Fatal("Build returned nil root")
+	}
+	if findCommand(root, "api") == nil {
+		t.Fatal("builtin api command missing")
+	}
+	if findCommand(root, "docs +fetch") == nil {
+		t.Fatal("builtin docs +fetch shortcut missing")
+	}
+}
+
+func findCommand(root *cobra.Command, path string) *cobra.Command {
+	parts := strings.Fields(path)
+	cmd := root
+	for _, part := range parts {
+		var next *cobra.Command
+		for _, child := range cmd.Commands() {
+			if child.Name() == part {
+				next = child
+				break
+			}
+		}
+		if next == nil {
+			return nil
+		}
+		cmd = next
+	}
+	return cmd
+}

cmd/command_catalog_path_test.go

@@ -0,0 +1,52 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"reflect"
+	"testing"
+
+	"github.com/spf13/cobra"
+)
+
+// TestCommandCatalogPath pins that the auth-hint path reconstruction inverts the
+// service command tree for any depth — flat dotted resources AND genuinely
+// nested resources — so it round-trips through apicatalog.Resolve instead of
+// assuming a fixed root->service->resource->method shape.
+func TestCommandCatalogPath(t *testing.T) {
+	chain := func(names ...string) *cobra.Command {
+		var parent, leaf *cobra.Command
+		for _, n := range names {
+			c := &cobra.Command{Use: n}
+			if parent != nil {
+				parent.AddCommand(c)
+			}
+			parent = c
+			leaf = c
+		}
+		return leaf
+	}
+
+	tests := []struct {
+		name string
+		leaf *cobra.Command
+		want []string
+	}{
+		{"flat dotted resource", chain("lark-cli", "im", "chat.members", "create"), []string{"im", "chat.members", "create"}},
+		{"nested resources", chain("lark-cli", "im", "spaces", "items", "get"), []string{"im", "spaces", "items", "get"}},
+		{"service level", chain("lark-cli", "im"), []string{"im"}},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := commandCatalogPath(tt.leaf); !reflect.DeepEqual(got, tt.want) {
+				t.Errorf("commandCatalogPath = %v, want %v", got, tt.want)
+			}
+		})
+	}
+
+	// The root command (no parent) has no catalog path.
+	if got := commandCatalogPath(&cobra.Command{Use: "lark-cli"}); len(got) != 0 {
+		t.Errorf("root path = %v, want empty", got)
+	}
+}

cmd/completion/completion.go

@@ -4,8 +4,7 @@
 package completion
 
 import (
-	"fmt"
-
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/spf13/cobra"
 )
@@ -32,7 +31,9 @@ func NewCmdCompletion(f *cmdutil.Factory) *cobra.Command {
 			case "powershell":
 				return root.GenPowerShellCompletionWithDesc(out)
 			default:
-				return fmt.Errorf("unsupported shell: %s", args[0])
+				return errs.NewValidationError(errs.SubtypeInvalidArgument,
+					"unsupported shell: %s", args[0]).
+					WithHint("supported shells: bash, zsh, fish, powershell")
 			}
 		},
 	}

cmd/config/bind.go

@@ -212,10 +212,7 @@ func finalizeSource(opts *BindOptions) (string, error) {
 	if opts.IsTUI && !opts.langExplicit {
 		lang, err := promptLangSelection()
 		if err != nil {
-			if err == huh.ErrUserAborted {
-				return "", output.ErrBare(1)
-			}
-			return "", output.Errorf(output.ExitInternal, "internal", "language selection failed: %v", err)
+			return "", langSelectionError(err)
 		}
 		opts.Lang = string(lang)
 		opts.UILang = lang

cmd/config/bind_test.go

@@ -20,35 +20,29 @@ import (
 	"github.com/larksuite/cli/internal/output"
 )
 
-// assertExitError checks the full structured error in one assertion. It
-// accepts both *output.ExitError (used by output.ErrWithHint) and the
-// typed errors (ValidationError, ConfigError) — they normalize to the same
-// wantDetail fields. The wantDetail.Type is matched against the typed error's
-// Category string ("validation", "config", etc.).
-func assertExitError(t *testing.T, err error, wantCode int, wantDetail output.ErrDetail) {
+// wantErrDetail is the normalized comparison shape for a typed error's wire
+// fields: Type is the error's Category string ("validation", "config", ...),
+// alongside Message and Hint.
+type wantErrDetail struct {
+	Type    string
+	Message string
+	Hint    string
+}
+
+// assertExitError checks the full structured error in one assertion against a
+// typed error (ValidationError or ConfigError), normalizing its Category /
+// Message / Hint to wantDetail.
+func assertExitError(t *testing.T, err error, wantCode int, wantDetail wantErrDetail) {
 	t.Helper()
 	if err == nil {
 		t.Fatal("expected error, got nil")
 	}
-	var exitErr *output.ExitError
-	if errors.As(err, &exitErr) {
-		if exitErr.Code != wantCode {
-			t.Errorf("exit code = %d, want %d", exitErr.Code, wantCode)
-		}
-		if exitErr.Detail == nil {
-			t.Fatal("expected non-nil error detail")
-		}
-		if !reflect.DeepEqual(*exitErr.Detail, wantDetail) {
-			t.Errorf("error detail mismatch:\n  got:  %+v\n  want: %+v", *exitErr.Detail, wantDetail)
-		}
-		return
-	}
 	var ve *errs.ValidationError
 	if errors.As(err, &ve) {
 		if got := output.ExitCodeOf(err); got != wantCode {
 			t.Errorf("exit code = %d, want %d", got, wantCode)
 		}
-		gotDetail := output.ErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
+		gotDetail := wantErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
 		if !reflect.DeepEqual(gotDetail, wantDetail) {
 			t.Errorf("validation error mismatch:\n  got:  %+v\n  want: %+v", gotDetail, wantDetail)
 		}
@@ -59,13 +53,13 @@ func assertExitError(t *testing.T, err error, wantCode int, wantDetail output.Er
 		if got := output.ExitCodeOf(err); got != wantCode {
 			t.Errorf("exit code = %d, want %d", got, wantCode)
 		}
-		gotDetail := output.ErrDetail{Type: string(ce.Category), Message: ce.Message, Hint: ce.Hint}
+		gotDetail := wantErrDetail{Type: string(ce.Category), Message: ce.Message, Hint: ce.Hint}
 		if !reflect.DeepEqual(gotDetail, wantDetail) {
 			t.Errorf("config error mismatch:\n  got:  %+v\n  want: %+v", gotDetail, wantDetail)
 		}
 		return
 	}
-	t.Fatalf("error type = %T, want *output.ExitError or *errs.ValidationError / *errs.ConfigError; error = %v", err, err)
+	t.Fatalf("error type = %T, want *errs.ValidationError / *errs.ConfigError; error = %v", err, err)
 }
 
 // assertEnvelope decodes stdout and checks it matches want exactly — every key
@@ -179,15 +173,21 @@ func TestConfigBindRun_InvalidLang(t *testing.T) {
 			if err == nil {
 				t.Fatalf("expected validation error for --lang %q, got nil", tc.lang)
 			}
-			exitErr, ok := err.(*output.ExitError)
-			if !ok {
-				t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
+			var valErr *errs.ValidationError
+			if !errors.As(err, &valErr) {
+				t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
 			}
-			if exitErr.Code != output.ExitValidation {
-				t.Errorf("exit code = %d, want %d (validation)", exitErr.Code, output.ExitValidation)
+			if valErr.Subtype != errs.SubtypeInvalidArgument {
+				t.Errorf("subtype = %q, want %q", valErr.Subtype, errs.SubtypeInvalidArgument)
 			}
-			if !strings.Contains(exitErr.Error(), "invalid --lang") {
-				t.Errorf("error message %q does not contain 'invalid --lang'", exitErr.Error())
+			if valErr.Param != "--lang" {
+				t.Errorf("param = %q, want %q", valErr.Param, "--lang")
+			}
+			if got := output.ExitCodeOf(err); got != output.ExitValidation {
+				t.Errorf("exit code = %d, want %d (validation)", got, output.ExitValidation)
+			}
+			if !strings.Contains(err.Error(), "invalid --lang") {
+				t.Errorf("error message %q does not contain 'invalid --lang'", err.Error())
 			}
 		})
 	}
@@ -365,7 +365,7 @@ func TestConfigBindRun_InvalidSource(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "invalid"})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `invalid --source "invalid"; valid values: openclaw, hermes, lark-channel`,
 	})
@@ -382,7 +382,7 @@ func TestConfigBindRun_MissingSourceNonTTY(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	// TestFactory has IsTerminal=false by default
 	err := configBindRun(&BindOptions{Factory: f, Source: ""})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: "cannot determine Agent source: no --source flag and no Agent environment detected",
 		Hint:    "pass --source openclaw|hermes|lark-channel, or run this command inside the corresponding Agent context",
@@ -421,7 +421,7 @@ func TestConfigBindRun_SourceEnvMismatch_OpenClawFlagInHermesEnv(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `--source "openclaw" does not match detected Agent environment (hermes)`,
 		Hint:    "remove --source to auto-detect, or run this command in the correct Agent context",
@@ -437,7 +437,7 @@ func TestConfigBindRun_SourceEnvMismatch_HermesFlagInOpenClawEnv(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `--source "hermes" does not match detected Agent environment (openclaw)`,
 		Hint:    "remove --source to auto-detect, or run this command in the correct Agent context",
@@ -566,7 +566,7 @@ func TestConfigBindRun_HermesMissingEnvFile(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
 	envPath := filepath.Join(hermesHome, ".env")
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "failed to read Hermes config: open " + envPath + ": no such file or directory",
 		Hint:    "verify Hermes is installed and configured at " + envPath,
@@ -584,7 +584,7 @@ func TestConfigBindRun_OpenClawMissingFile(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
 	configPath := filepath.Join(openclawHome, ".openclaw", "openclaw.json")
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "cannot read " + configPath + ": open " + configPath + ": no such file or directory",
 		Hint:    "verify OpenClaw is installed and configured",
@@ -731,7 +731,7 @@ func TestConfigBindRun_SourceEnvMismatch_LarkChannelFlagInOpenClawEnv(t *testing
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `--source "lark-channel" does not match detected Agent environment (openclaw)`,
 		Hint:    "remove --source to auto-detect, or run this command in the correct Agent context",
@@ -750,7 +750,7 @@ func TestConfigBindRun_LarkChannelMissingFile(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
 	configPath := filepath.Join(fakeHome, ".lark-channel", "config.json")
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "cannot read " + configPath + ": open " + configPath + ": no such file or directory",
 		Hint:    "verify lark-channel-bridge is installed and configured",
@@ -770,7 +770,7 @@ func TestConfigBindRun_LarkChannelEmptyAppID(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "accounts.app.id missing in " + configPath,
 		Hint:    "run lark-channel-bridge's setup to populate the app credential",
@@ -789,7 +789,7 @@ func TestConfigBindRun_LarkChannelEmptySecret(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "lark-channel"})
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "accounts.app.secret is empty in " + configPath,
 		Hint:    "run lark-channel-bridge's setup to populate the app credential",
@@ -835,17 +835,19 @@ func TestConfigShowRun_AgentWorkspaceNotBound(t *testing.T) {
 		t.Fatal("expected error for unbound workspace")
 	}
 	// Should be a structured ConfigError suggesting config bind, not config init.
-	var cfgErr *core.ConfigError
+	var cfgErr *errs.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *core.ConfigError", err)
+		t.Fatalf("error type = %T, want *errs.ConfigError", err)
 	}
 	// Config errors share ExitAuth (3); the workspace is detected but no
 	// binding exists yet, which is a config error.
-	if cfgErr.Code != output.ExitAuth {
-		t.Errorf("exit code = %d, want %d (config category → ExitAuth)", cfgErr.Code, output.ExitAuth)
+	if got := output.ExitCodeOf(err); got != output.ExitAuth {
+		t.Errorf("exit code = %d, want %d (config category → ExitAuth)", got, output.ExitAuth)
 	}
-	if cfgErr.Type != "openclaw" {
-		t.Errorf("type = %q, want %q", cfgErr.Type, "openclaw")
+	// The workspace name stays out of the wire subtype; it only appears in
+	// the message.
+	if cfgErr.Subtype != errs.SubtypeNotConfigured {
+		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
 	}
 	if !strings.Contains(cfgErr.Message, "openclaw context detected") {
 		t.Errorf("message missing 'openclaw context detected': %q", cfgErr.Message)
@@ -1187,7 +1189,7 @@ func TestConfigBindRun_OpenClawMultiAccount_TTYFlagMode(t *testing.T) {
 	// iterates a map — ordering is non-deterministic. DeepEqual inline against
 	// each accepted variant so every ErrDetail field (Type, Code, Message,
 	// Hint, ConsoleURL, Detail, and any future addition) is still compared.
-	base := output.ErrDetail{
+	base := wantErrDetail{
 		Type:    "validation",
 		Message: "multiple accounts in openclaw.json; pass --app-id <id>",
 	}
@@ -1203,7 +1205,7 @@ func TestConfigBindRun_OpenClawMultiAccount_TTYFlagMode(t *testing.T) {
 	if !errors.As(err, &ve) {
 		t.Fatalf("error type = %T, want *errs.ValidationError; err = %v", err, err)
 	}
-	got := output.ErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
+	got := wantErrDetail{Type: string(ve.Category), Message: ve.Message, Hint: ve.Hint}
 	if !reflect.DeepEqual(got, wantWorkFirst) && !reflect.DeepEqual(got, wantPersonalFirst) {
 		t.Errorf("error detail did not match any accepted variant:\n  got:  %+v\n  want: %+v OR %+v",
 			got, wantWorkFirst, wantPersonalFirst)
@@ -1230,7 +1232,7 @@ func TestConfigBindRun_OpenClawMultiAccount_WrongAppID(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw", AppID: "nonexistent"})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `--app-id "nonexistent" not found in openclaw.json`,
 		Hint:    "available app IDs:\n  cli_only_one",
@@ -1250,7 +1252,7 @@ func TestConfigBindRun_InvalidIdentity(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes", Identity: "invalid"})
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `invalid --identity "invalid"; valid values: bot-only, user-default`,
 	})
@@ -1536,7 +1538,7 @@ func TestConfigBindRun_HermesMissingAppID(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
 	envPath := filepath.Join(hermesHome, ".env")
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "FEISHU_APP_ID not found in " + envPath,
 		Hint:    "run 'hermes setup' to configure Feishu credentials",
@@ -1556,7 +1558,7 @@ func TestConfigBindRun_HermesMissingAppSecret(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "hermes"})
 	envPath := filepath.Join(hermesHome, ".env")
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "FEISHU_APP_SECRET not found in " + envPath,
 		Hint:    "run 'hermes setup' to configure Feishu credentials",
@@ -1582,7 +1584,7 @@ func TestConfigBindRun_OpenClawMissingFeishu(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "openclaw.json missing channels.feishu section",
 		Hint:    "configure Feishu in OpenClaw first",
@@ -1610,7 +1612,7 @@ func TestConfigBindRun_OpenClawEmptyAppSecret(t *testing.T) {
 	openclawPath := filepath.Join(openclawDir, "openclaw.json")
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "appSecret is empty for app cli_no_secret in " + openclawPath,
 		Hint:    "configure channels.feishu.appSecret in openclaw.json",
@@ -1672,7 +1674,7 @@ func TestConfigBindRun_OpenClawDisabledAccount(t *testing.T) {
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
 	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw"})
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "no Feishu app configured in openclaw.json",
 		Hint:    "configure channels.feishu.appId in openclaw.json",

cmd/config/binder_test.go

@@ -51,7 +51,7 @@ func assertCandidate(t *testing.T, got *Candidate, want Candidate) {
 func TestSelectCandidate_ZeroCandidates_OpenClaw(t *testing.T) {
 	b := &fakeBinder{name: "openclaw", path: "/tmp/openclaw.json"}
 	_, err := selectCandidate(b, nil, "", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "no Feishu app configured in openclaw.json",
 		Hint:    "configure channels.feishu.appId in openclaw.json",
@@ -64,7 +64,7 @@ func TestSelectCandidate_ZeroCandidates_GenericSource(t *testing.T) {
 	// even before it has a bespoke error message.
 	b := &fakeBinder{name: "hermes", path: "/tmp/.env"}
 	_, err := selectCandidate(b, nil, "", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitAuth, output.ErrDetail{
+	assertExitError(t, err, output.ExitAuth, wantErrDetail{
 		Type:    "config",
 		Message: "hermes: no app configured",
 	})
@@ -100,7 +100,7 @@ func TestSelectCandidate_AppIDFlag_NoMatch(t *testing.T) {
 		{AppID: "cli_home", Label: "home"},
 	}
 	_, err := selectCandidate(b, candidates, "nonexistent", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `--app-id "nonexistent" not found in openclaw.json`,
 		Hint:    "available app IDs:\n  cli_work (work)\n  cli_home (home)",
@@ -117,7 +117,7 @@ func TestSelectCandidate_MultiCandidate_NoFlag_NonTUI(t *testing.T) {
 		{AppID: "cli_home", Label: "home"},
 	}
 	_, err := selectCandidate(b, candidates, "", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: "multiple accounts in openclaw.json; pass --app-id <id>",
 		Hint:    "available app IDs:\n  cli_work (work)\n  cli_home (home)",
@@ -152,7 +152,7 @@ func TestSelectCandidate_SingleCandidate_WrongFlag(t *testing.T) {
 	b := &fakeBinder{name: "openclaw", path: "/tmp/openclaw.json"}
 	candidates := []Candidate{{AppID: "cli_only"}}
 	_, err := selectCandidate(b, candidates, "nonexistent", false, tuiUnreachable(t))
-	assertExitError(t, err, output.ExitValidation, output.ErrDetail{
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
 		Type:    "validation",
 		Message: `--app-id "nonexistent" not found in openclaw.json`,
 		Hint:    "available app IDs:\n  cli_only",

cmd/config/config_test.go

@@ -12,6 +12,7 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	extcred "github.com/larksuite/cli/extension/credential"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -92,16 +93,16 @@ func TestConfigShowRun_NotConfiguredReturnsStructuredError(t *testing.T) {
 		t.Fatal("expected error")
 	}
 
-	var cfgErr *core.ConfigError
+	var cfgErr *errs.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *core.ConfigError", err)
+		t.Fatalf("error type = %T, want *errs.ConfigError", err)
 	}
 	// Config errors share ExitAuth (3), not ExitValidation.
-	if cfgErr.Code != output.ExitAuth {
-		t.Fatalf("exit code = %d, want %d (config category → ExitAuth)", cfgErr.Code, output.ExitAuth)
+	if got := output.ExitCodeOf(err); got != output.ExitAuth {
+		t.Fatalf("exit code = %d, want %d (config category → ExitAuth)", got, output.ExitAuth)
 	}
-	if cfgErr.Type != "config" || cfgErr.Message != "not configured" {
-		t.Fatalf("detail = %+v, want config/not configured", cfgErr)
+	if cfgErr.Subtype != errs.SubtypeNotConfigured || cfgErr.Message != "not configured" {
+		t.Fatalf("detail = %+v, want not_configured/not configured", cfgErr)
 	}
 }
 
@@ -233,15 +234,21 @@ func TestConfigInitCmd_InvalidLang(t *testing.T) {
 			if err == nil {
 				t.Fatalf("expected validation error for --lang %q, got nil", tc.lang)
 			}
-			exitErr, ok := err.(*output.ExitError)
-			if !ok {
-				t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
+			var valErr *errs.ValidationError
+			if !errors.As(err, &valErr) {
+				t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
 			}
-			if exitErr.Code != output.ExitValidation {
-				t.Errorf("exit code = %d, want %d (validation)", exitErr.Code, output.ExitValidation)
+			if valErr.Subtype != errs.SubtypeInvalidArgument {
+				t.Errorf("subtype = %q, want %q", valErr.Subtype, errs.SubtypeInvalidArgument)
 			}
-			if !strings.Contains(exitErr.Error(), "invalid --lang") {
-				t.Errorf("error message %q does not contain 'invalid --lang'", exitErr.Error())
+			if valErr.Param != "--lang" {
+				t.Errorf("param = %q, want %q", valErr.Param, "--lang")
+			}
+			if got := output.ExitCodeOf(err); got != output.ExitValidation {
+				t.Errorf("exit code = %d, want %d (validation)", got, output.ExitValidation)
+			}
+			if !strings.Contains(err.Error(), "invalid --lang") {
+				t.Errorf("error message %q does not contain 'invalid --lang'", err.Error())
 			}
 		})
 	}
@@ -385,8 +392,38 @@ func TestSaveAsProfile_RejectsProfileNameCollisionWithExistingAppID(t *testing.T
 	if err == nil {
 		t.Fatal("expected conflict error")
 	}
-	if !strings.Contains(err.Error(), "conflicts with existing appId") {
-		t.Fatalf("error = %v, want conflict with existing appId", err)
+	// A name/appId conflict is user input — a typed validation error naming the
+	// offending flag, not a system storage failure.
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("error type = %T, want *errs.ValidationError; err=%v", err, err)
+	}
+	if verr.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
+	}
+	if verr.Param != "--name" {
+		t.Errorf("param = %q, want --name", verr.Param)
+	}
+	if output.ExitCodeOf(err) != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (validation)", output.ExitCodeOf(err), output.ExitValidation)
+	}
+	if !strings.Contains(verr.Message, "conflicts with existing appId") {
+		t.Errorf("message = %q, want conflict description", verr.Message)
+	}
+}
+
+// TestWrapSaveConfigError_PassesTypedValidationThrough pins that a user-input
+// validation error (e.g. the --name conflict) is not reclassified as an
+// internal storage failure on its way up through the save call sites.
+func TestWrapSaveConfigError_PassesTypedValidationThrough(t *testing.T) {
+	conflict := errs.NewValidationError(errs.SubtypeInvalidArgument, "name conflict").WithParam("--name")
+	var verr *errs.ValidationError
+	if !errors.As(wrapSaveConfigError(conflict), &verr) {
+		t.Fatalf("typed validation must pass through unchanged, got %T", wrapSaveConfigError(conflict))
+	}
+	var ierr *errs.InternalError
+	if !errors.As(wrapSaveConfigError(errors.New("disk full")), &ierr) || ierr.Subtype != errs.SubtypeStorage {
+		t.Fatalf("untyped failure must become internal/storage")
 	}
 }
 

cmd/config/init.go

@@ -6,13 +6,11 @@ package config
 import (
 	"bufio"
 	"context"
-	"errors"
 	"fmt"
 	"io"
 	"os"
 	"strings"
 
-	"github.com/charmbracelet/huh"
 	"github.com/spf13/cobra"
 
 	"github.com/larksuite/cli/errs"
@@ -127,12 +125,9 @@ func guardAgentWorkspace(opts *ConfigInitOptions) error {
 	if ws.IsLocal() {
 		return nil
 	}
-	return &core.ConfigError{
-		Code:    2,
-		Type:    ws.Display(),
-		Message: fmt.Sprintf("config init is refused inside %s context (would create a parallel app and shadow the existing %s binding)", ws.Display(), ws.Display()),
-		Hint:    "see `lark-cli config bind --help` to bind lark-cli to the Agent's existing app instead. Pass --force-init only if the user explicitly wants a separate app in this workspace.",
-	}
+	return errs.NewConfigError(errs.SubtypeNotConfigured,
+		"config init is refused inside %s context (would create a parallel app and shadow the existing %s binding)", ws.Display(), ws.Display()).
+		WithHint("see `lark-cli config bind --help` to bind lark-cli to the Agent's existing app instead. Pass --force-init only if the user explicitly wants a separate app in this workspace.")
 }
 
 // hasAnyNonInteractiveFlag returns true if any non-interactive flag is set.
@@ -183,6 +178,20 @@ func saveInitConfig(profileName string, existing *core.MultiAppConfig, f *cmduti
 	return saveAsOnlyApp(appId, secret, brand, string(preferredLang(i18n.Lang(lang), prior)))
 }
 
+// wrapSaveConfigError passes an already-typed error (e.g. the --name conflict
+// validation error from saveAsProfile) through unchanged, and classifies any
+// other failure as an internal storage error. Without the passthrough a user
+// input error would surface to agents as a system storage failure.
+func wrapSaveConfigError(err error) error {
+	if err == nil {
+		return nil
+	}
+	if _, ok := errs.ProblemOf(err); ok {
+		return err
+	}
+	return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+}
+
 // saveAsProfile appends or updates a named profile in the config.
 // If a profile with the same name exists, it updates it; otherwise appends.
 // When updating, cleans up old keychain secrets if AppId changed.
@@ -207,7 +216,9 @@ func saveAsProfile(existing *core.MultiAppConfig, kc keychain.KeychainAccess, pr
 		multi.Apps[idx].Lang = preferredLang(i18n.Lang(lang), multi.Apps[idx].Lang)
 	} else {
 		if findAppIndexByAppID(multi, profileName) >= 0 {
-			return fmt.Errorf("profile name %q conflicts with existing appId", profileName)
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"profile name %q conflicts with existing appId", profileName).
+				WithParam("--name")
 		}
 		// Append new profile
 		multi.Apps = append(multi.Apps, core.AppConfig{
@@ -249,8 +260,8 @@ func findAppIndexByAppID(multi *core.MultiAppConfig, appID string) int {
 // wrapUpdateExistingProfileErr classifies the error returned by
 // updateExistingProfileWithoutSecret. Typed errors (e.g. *errs.ValidationError
 // for blank-input) pass through unchanged so their exit code semantics
-// survive; legacy *output.ExitError also passes through; everything else
-// (filesystem, keychain, etc.) is wrapped as InternalError.
+// survive; everything else (filesystem, keychain, etc.) is wrapped as
+// InternalError.
 func wrapUpdateExistingProfileErr(err error) error {
 	if err == nil {
 		return nil
@@ -258,10 +269,6 @@ func wrapUpdateExistingProfileErr(err error) error {
 	if errs.IsTyped(err) {
 		return err
 	}
-	var exitErr *output.ExitError
-	if errors.As(err, &exitErr) {
-		return err
-	}
 	return errs.NewInternalError(errs.SubtypeSDKError, "failed to save config: %v", err).WithCause(err)
 }
 
@@ -336,7 +343,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 			return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 		}
 		if err := saveInitConfig(opts.ProfileName, existing, f, opts.AppID, secret, brand, opts.Lang); err != nil {
-			return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+			return wrapSaveConfigError(err)
 		}
 		output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Configuration saved to %s", core.GetConfigPath()))
 		printLangPreferenceConfirmation(opts)
@@ -353,10 +360,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 	if f.IOStreams.IsTerminal && !opts.langExplicit && !opts.hasAnyNonInteractiveFlag() {
 		lang, err := promptLangSelection()
 		if err != nil {
-			if err == huh.ErrUserAborted {
-				return output.ErrBare(1)
-			}
-			return output.Errorf(output.ExitInternal, "internal", "language selection failed: %v", err)
+			return langSelectionError(err)
 		}
 		opts.Lang = string(lang)
 		opts.UILang = lang
@@ -379,7 +383,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 			return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 		}
 		if err := saveInitConfig(opts.ProfileName, existing, f, result.AppID, secret, result.Brand, opts.Lang); err != nil {
-			return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+			return wrapSaveConfigError(err)
 		}
 		printLangPreferenceConfirmation(opts)
 		output.PrintJson(f.IOStreams.Out, map[string]interface{}{"appId": result.AppID, "appSecret": "****", "brand": result.Brand})
@@ -409,7 +413,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 				return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 			}
 			if err := saveInitConfig(opts.ProfileName, existing, f, result.AppID, secret, result.Brand, opts.Lang); err != nil {
-				return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+				return wrapSaveConfigError(err)
 			}
 		} else if result.Mode == "existing" && result.AppID != "" {
 			// Existing app with unchanged secret — update app ID and brand only
@@ -514,7 +518,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 		return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 	}
 	if err := saveInitConfig(opts.ProfileName, existing, f, resolvedAppId, storedSecret, parseBrand(resolvedBrand), opts.Lang); err != nil {
-		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
+		return wrapSaveConfigError(err)
 	}
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Configuration saved to %s", core.GetConfigPath()))
 	printLangPreferenceConfirmation(opts)

cmd/config/init_guard_test.go

@@ -8,7 +8,7 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/errs"
 )
 
 func TestGuardAgentWorkspace_LocalAllows(t *testing.T) {
@@ -26,12 +26,15 @@ func TestGuardAgentWorkspace_OpenClawRefuses(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected refusal in OpenClaw context, got nil")
 	}
-	var cfgErr *core.ConfigError
+	var cfgErr *errs.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *core.ConfigError", err)
+		t.Fatalf("error type = %T, want *errs.ConfigError", err)
 	}
-	if cfgErr.Type != "openclaw" {
-		t.Errorf("type = %q, want %q", cfgErr.Type, "openclaw")
+	if cfgErr.Subtype != errs.SubtypeNotConfigured {
+		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
+	}
+	if !strings.Contains(cfgErr.Message, "openclaw") {
+		t.Errorf("message must name the openclaw workspace; got %q", cfgErr.Message)
 	}
 	if !strings.Contains(cfgErr.Hint, "config bind --help") {
 		t.Errorf("hint must point to config bind --help; got %q", cfgErr.Hint)
@@ -48,12 +51,15 @@ func TestGuardAgentWorkspace_HermesRefuses(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected refusal in Hermes context, got nil")
 	}
-	var cfgErr *core.ConfigError
+	var cfgErr *errs.ConfigError
 	if !errors.As(err, &cfgErr) {
-		t.Fatalf("error type = %T, want *core.ConfigError", err)
+		t.Fatalf("error type = %T, want *errs.ConfigError", err)
 	}
-	if cfgErr.Type != "hermes" {
-		t.Errorf("type = %q, want %q", cfgErr.Type, "hermes")
+	if cfgErr.Subtype != errs.SubtypeNotConfigured {
+		t.Errorf("subtype = %q, want not_configured", cfgErr.Subtype)
+	}
+	if !strings.Contains(cfgErr.Message, "hermes") {
+		t.Errorf("message must name the hermes workspace; got %q", cfgErr.Message)
 	}
 }
 

cmd/config/init_messages.go

@@ -4,10 +4,14 @@
 package config
 
 import (
+	"errors"
+
 	"github.com/charmbracelet/huh"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/i18n"
+	"github.com/larksuite/cli/internal/output"
 )
 
 type initMsg struct {
@@ -97,3 +101,12 @@ func promptLangSelection() (i18n.Lang, error) {
 	}
 	return lang, nil
 }
+
+// langSelectionError maps a promptLangSelection failure to its exit surface:
+// user abort exits bare with code 1; any other failure is internal.
+func langSelectionError(err error) error {
+	if errors.Is(err, huh.ErrUserAborted) {
+		return output.ErrBare(1)
+	}
+	return errs.NewInternalError(errs.SubtypeUnknown, "language selection failed: %v", err).WithCause(err)
+}

cmd/config/init_test.go

@@ -65,8 +65,8 @@ func TestUpdateExistingProfileWithoutSecret_AppIdMismatch_EmitsValidationError(t
 
 // wrapUpdateExistingProfileErr is the caller-side classifier for the error
 // returned by updateExistingProfileWithoutSecret. It must preserve typed-error
-// exit semantics (regression: typed ValidationError was being downgraded to
-// InternalError by the legacy *output.ExitError-only passthrough).
+// exit semantics: a typed ValidationError must keep ExitValidation rather than
+// being downgraded to InternalError.
 
 func TestWrapUpdateExistingProfileErr_NilPassesThrough(t *testing.T) {
 	if got := wrapUpdateExistingProfileErr(nil); got != nil {
@@ -90,18 +90,6 @@ func TestWrapUpdateExistingProfileErr_TypedValidationErrorPreserved(t *testing.T
 	}
 }
 
-func TestWrapUpdateExistingProfileErr_LegacyExitErrorPreserved(t *testing.T) {
-	in := &output.ExitError{Code: 7, Err: errors.New("legacy")}
-	got := wrapUpdateExistingProfileErr(in)
-	var exitErr *output.ExitError
-	if !errors.As(got, &exitErr) {
-		t.Fatalf("expected *output.ExitError to pass through, got %T: %v", got, got)
-	}
-	if exitErr.Code != 7 {
-		t.Errorf("Code = %d, want 7", exitErr.Code)
-	}
-}
-
 func TestWrapUpdateExistingProfileErr_UntypedErrorBecomesInternal(t *testing.T) {
 	in := fmt.Errorf("disk full")
 	got := wrapUpdateExistingProfileErr(in)

cmd/doctor/doctor.go

@@ -14,6 +14,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -94,7 +95,7 @@ func doctorRun(opts *DoctorOptions) error {
 		// underlying problem is still visible.
 		msg, hint := err.Error(), ""
 		if errors.Is(err, os.ErrNotExist) {
-			var cfgErr *core.ConfigError
+			var cfgErr *errs.ConfigError
 			if errors.As(core.NotConfiguredError(), &cfgErr) {
 				msg, hint = cfgErr.Message, cfgErr.Hint
 			}
@@ -108,7 +109,7 @@ func doctorRun(opts *DoctorOptions) error {
 	cfg, err := f.Config()
 	if err != nil {
 		hint := ""
-		var cfgErr *core.ConfigError
+		var cfgErr *errs.ConfigError
 		if errors.As(err, &cfgErr) {
 			hint = cfgErr.Hint
 		}

cmd/error_auth_hint.go

@@ -11,10 +11,10 @@ import (
 	"github.com/spf13/cobra"
 
 	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/apicatalog"
 	internalauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
-	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/shortcuts"
 	shortcutcommon "github.com/larksuite/cli/shortcuts/common"
@@ -48,32 +48,6 @@ func applyNeedAuthorizationHint(f *cmdutil.Factory, err error) {
 	authErr.Hint += "\n" + scopeHint
 }
 
-// enrichMissingScopeError appends a "current command requires scope(s): X"
-// hint to a legacy *output.ExitError when the underlying error carries the
-// need_user_authorization marker AND the current command declares scopes
-// locally.
-//
-// Deprecated: enrichment for the legacy envelope; the typed path is
-// applyNeedAuthorizationHint above.
-func enrichMissingScopeError(f *cmdutil.Factory, exitErr *output.ExitError) {
-	if exitErr == nil || exitErr.Detail == nil {
-		return
-	}
-	if !internalauth.IsNeedUserAuthorizationError(exitErr) {
-		return
-	}
-	scopes := resolveDeclaredScopesForCurrentCommand(f)
-	if len(scopes) == 0 {
-		return
-	}
-	scopeHint := fmt.Sprintf("current command requires scope(s): %s", strings.Join(scopes, ", "))
-	if exitErr.Detail.Hint == "" {
-		exitErr.Detail.Hint = scopeHint
-		return
-	}
-	exitErr.Detail.Hint += "\n" + scopeHint
-}
-
 // resolveDeclaredScopesForCurrentCommand returns the scopes declared by the
 // current command for the resolved identity, checking shortcuts first and then
 // service methods from local registry metadata.
@@ -118,38 +92,37 @@ func resolveDeclaredShortcutScopes(cmd *cobra.Command, identity string) []string
 }
 
 // resolveDeclaredServiceMethodScopes returns the scopes declared by a
-// service/resource/method command from the embedded from_meta registry.
+// service/resource/method command. It reconstructs the catalog path from the
+// command ancestry and resolves it through the same navigation Module the
+// command tree is built from (apicatalog), so it stays correct for nested
+// resources instead of hard-coding a root->service->resource->method depth.
+// Non-method commands (services, resources, shortcuts) resolve to a non-method
+// target and yield no scopes.
 func resolveDeclaredServiceMethodScopes(cmd *cobra.Command, identity string) []string {
-	// Service-method scope lookup only applies to commands mounted as
-	// root -> service -> resource -> method. Non-resource/method commands
-	// intentionally return no scopes here so auth-hint enrichment does not
-	// change runtime semantics for other command shapes.
-	if cmd == nil || cmd.Parent() == nil || cmd.Parent().Parent() == nil || cmd.Parent().Parent().Parent() == nil {
+	if cmd == nil || strings.HasPrefix(cmd.Name(), "+") {
 		return nil
 	}
-	if strings.HasPrefix(cmd.Name(), "+") {
+	path := commandCatalogPath(cmd)
+	if len(path) == 0 {
 		return nil
 	}
+	target, err := registry.RuntimeCatalog().Resolve(path)
+	if err != nil || target.Kind != apicatalog.TargetMethod {
+		return nil
+	}
+	return registry.DeclaredScopesForMethod(target.Method.Method, identity)
+}
 
-	service := cmd.Parent().Parent().Name()
-	resource := cmd.Parent().Name()
-	method := cmd.Name()
-
-	spec := registry.LoadFromMeta(service)
-	if spec == nil {
-		return nil
+// commandCatalogPath reconstructs the catalog path [service, resource..., method]
+// from a command's ancestry, excluding the root command. It is the inverse of
+// the service command tree's construction, so any depth (flat or nested)
+// round-trips through apicatalog.Resolve.
+func commandCatalogPath(cmd *cobra.Command) []string {
+	var path []string
+	for c := cmd; c != nil && c.Parent() != nil; c = c.Parent() {
+		path = append([]string{c.Name()}, path...)
 	}
-	resources, _ := spec["resources"].(map[string]interface{})
-	resMap, _ := resources[resource].(map[string]interface{})
-	if resMap == nil {
-		return nil
-	}
-	methods, _ := resMap["methods"].(map[string]interface{})
-	methodMap, _ := methods[method].(map[string]interface{})
-	if methodMap == nil {
-		return nil
-	}
-	return registry.DeclaredScopesForMethod(methodMap, identity)
+	return path
 }
 
 // shortcutSupportsIdentity reports whether a shortcut supports the requested

cmd/event/appmeta_err.go

@@ -8,7 +8,7 @@ import (
 	"regexp"
 )
 
-// authURLPattern matches the grant-scope URL embedded in 99991672 errors; widen when adding brands in consoleScopeGrantURL.
+// authURLPattern matches the grant-scope URL embedded in 99991672 errors; widen the host alternation when adding brands.
 var authURLPattern = regexp.MustCompile(`https?://open\.(?:feishu\.cn|larksuite\.com)/app/[^/\s"']+/auth\?q=[^\s"'<>]+`)
 
 // describeAppMetaErr reduces a FetchCurrentPublished error to a one-line stderr summary.

cmd/event/console_url.go

@@ -4,21 +4,117 @@
 package event
 
 import (
+	"bytes"
+	"compress/gzip"
+	"encoding/base64"
+	"encoding/json"
 	"fmt"
-	"strings"
 
 	"github.com/larksuite/cli/internal/core"
+	eventlib "github.com/larksuite/cli/internal/event"
 )
 
-// consoleScopeGrantURL builds the developer-console "apply & grant scopes" deep link; scopes are comma-joined without URL encoding.
-func consoleScopeGrantURL(brand core.LarkBrand, appID string, scopes []string) string {
-	host := core.ResolveEndpoints(brand).Open
-	return fmt.Sprintf("%s/app/%s/auth?q=%s&op_from=openapi&token_type=tenant",
-		host, appID, strings.Join(scopes, ","))
+// Landing-page contract for the scan-to-enable deep link, verified against the
+// open platform: {open-host}/page/launcher?clientID=<appID>&addons=<encoded>.
+// Note the param is camelCase "clientID" (not snake_case), and the value is the
+// consuming app's own ID. Centralized so it can be corrected in one place.
+const (
+	addonsLandingPath   = "/page/launcher"
+	addonsClientIDParam = "clientID"
+)
+
+// ManifestAddons mirrors the 5 public manifest sections the launcher page accepts.
+// Encoded form: JSON -> gzip -> base64url(no padding).
+type ManifestAddons struct {
+	Scopes    *AddonsScopes    `json:"scopes,omitempty"`
+	Events    *AddonsEvents    `json:"events,omitempty"`
+	Callbacks *AddonsCallbacks `json:"callbacks,omitempty"`
 }
 
-// consoleEventSubscriptionURL points at the app's event subscription console page.
-func consoleEventSubscriptionURL(brand core.LarkBrand, appID string) string {
-	host := core.ResolveEndpoints(brand).Open
-	return fmt.Sprintf("%s/app/%s/event", host, appID)
+type AddonsScopes struct {
+	Tenant []string `json:"tenant"`
+	User   []string `json:"user"`
+}
+
+type AddonsEvents struct {
+	Items AddonsEventItems `json:"items"`
+}
+
+type AddonsEventItems struct {
+	Tenant []string `json:"tenant"`
+	User   []string `json:"user"`
+}
+
+type AddonsCallbacks struct {
+	Items []string `json:"items"`
+}
+
+// encodeAddons: JSON -> gzip -> base64url(no padding). Matches the front-end decode chain.
+func encodeAddons(a ManifestAddons) (string, error) {
+	raw, err := json.Marshal(a)
+	if err != nil {
+		return "", err
+	}
+	var buf bytes.Buffer
+	gw := gzip.NewWriter(&buf)
+	if _, err := gw.Write(raw); err != nil {
+		return "", err
+	}
+	if err := gw.Close(); err != nil {
+		return "", err
+	}
+	return base64.RawURLEncoding.EncodeToString(buf.Bytes()), nil
+}
+
+// consoleAddonsURL builds the scan-to-enable deep link carrying incremental scopes/events/callbacks.
+func consoleAddonsURL(brand core.LarkBrand, appID string, a ManifestAddons) (string, error) {
+	encoded, err := encodeAddons(a)
+	if err != nil {
+		return "", err
+	}
+	host := core.ResolveEndpoints(brand).Open
+	return fmt.Sprintf("%s%s?%s=%s&addons=%s", host, addonsLandingPath, addonsClientIDParam, appID, encoded), nil
+}
+
+// consoleLandingURL is the bare landing page (no addons) — fallback when encoding fails.
+func consoleLandingURL(brand core.LarkBrand, appID string) string {
+	host := core.ResolveEndpoints(brand).Open
+	return fmt.Sprintf("%s%s?%s=%s", host, addonsLandingPath, addonsClientIDParam, appID)
+}
+
+// addonsHintURL returns the scan URL, degrading to the bare landing page on encode error.
+func addonsHintURL(brand core.LarkBrand, appID string, a ManifestAddons) string {
+	url, err := consoleAddonsURL(brand, appID, a)
+	if err != nil {
+		return consoleLandingURL(brand, appID)
+	}
+	return url
+}
+
+// missingScopeAddons routes missing scopes into the identity-appropriate section.
+// The unused side is an empty (non-nil) slice so JSON encodes [] not null —
+// the addons spec treats a missing tenant/user as an empty array.
+func missingScopeAddons(identity core.Identity, missing []string) ManifestAddons {
+	s := &AddonsScopes{Tenant: []string{}, User: []string{}}
+	if identity.IsBot() {
+		s.Tenant = missing
+	} else {
+		s.User = missing
+	}
+	return ManifestAddons{Scopes: s}
+}
+
+// missingSubscriptionAddons routes missing events/callbacks into the right section.
+// Like missingScopeAddons, unused event sides stay [] (not null) per the addons spec.
+func missingSubscriptionAddons(subType eventlib.SubscriptionType, identity core.Identity, missing []string) ManifestAddons {
+	if subType == eventlib.SubTypeCallback {
+		return ManifestAddons{Callbacks: &AddonsCallbacks{Items: missing}}
+	}
+	ev := &AddonsEvents{Items: AddonsEventItems{Tenant: []string{}, User: []string{}}}
+	if identity.IsBot() {
+		ev.Items.Tenant = missing
+	} else {
+		ev.Items.User = missing
+	}
+	return ManifestAddons{Events: ev}
 }

cmd/event/console_url_test.go

@@ -4,33 +4,109 @@
 package event
 
 import (
+	"bytes"
+	"compress/gzip"
+	"encoding/base64"
+	"encoding/json"
+	"io"
+	"strings"
 	"testing"
 
 	"github.com/larksuite/cli/internal/core"
+	eventlib "github.com/larksuite/cli/internal/event"
 )
 
-func TestConsoleScopeGrantURL_Feishu(t *testing.T) {
-	got := consoleScopeGrantURL(core.BrandFeishu, "cli_XXXXXXXXXXXXXXXX", []string{
-		"im:message:readonly",
-		"im:message.group_at_msg",
-	})
-	want := "https://open.feishu.cn/app/cli_XXXXXXXXXXXXXXXX/auth?q=im:message:readonly,im:message.group_at_msg&op_from=openapi&token_type=tenant"
-	if got != want {
-		t.Errorf("url\n got: %s\nwant: %s", got, want)
+func decodeAddons(t *testing.T, encoded string) ManifestAddons {
+	t.Helper()
+	gz, err := base64.RawURLEncoding.DecodeString(encoded)
+	if err != nil {
+		t.Fatalf("base64url decode: %v", err)
+	}
+	zr, err := gzip.NewReader(bytes.NewReader(gz))
+	if err != nil {
+		t.Fatalf("gzip reader: %v", err)
+	}
+	raw, err := io.ReadAll(zr)
+	if err != nil {
+		t.Fatalf("gunzip: %v", err)
+	}
+	var a ManifestAddons
+	if err := json.Unmarshal(raw, &a); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	return a
+}
+
+func TestEncodeAddons_RoundTrip(t *testing.T) {
+	in := ManifestAddons{Scopes: &AddonsScopes{Tenant: []string{"im:message"}}}
+	encoded, err := encodeAddons(in)
+	if err != nil {
+		t.Fatalf("encode: %v", err)
+	}
+	for _, r := range encoded {
+		if !(r == '-' || r == '_' || (r >= '0' && r <= '9') || (r >= 'A' && r <= 'Z') || (r >= 'a' && r <= 'z')) {
+			t.Fatalf("encoded contains non-base64url char %q in %q", r, encoded)
+		}
+	}
+	out := decodeAddons(t, encoded)
+	if out.Scopes == nil || len(out.Scopes.Tenant) != 1 || out.Scopes.Tenant[0] != "im:message" {
+		t.Errorf("roundtrip mismatch: %+v", out)
 	}
 }
 
-func TestConsoleScopeGrantURL_LarkBrand(t *testing.T) {
-	got := consoleScopeGrantURL(core.BrandLark, "cli_x", []string{"im:message"})
-	want := "https://open.larksuite.com/app/cli_x/auth?q=im:message&op_from=openapi&token_type=tenant"
-	if got != want {
-		t.Errorf("url\n got: %s\nwant: %s", got, want)
+func TestConsoleAddonsURL_FormatAndBrandHost(t *testing.T) {
+	url, err := consoleAddonsURL(core.BrandFeishu, "cli_x", ManifestAddons{Callbacks: &AddonsCallbacks{Items: []string{"card.action.trigger"}}})
+	if err != nil {
+		t.Fatalf("url: %v", err)
+	}
+	host := core.ResolveEndpoints(core.BrandFeishu).Open
+	prefix := host + "/page/launcher?clientID=cli_x&addons="
+	if !strings.HasPrefix(url, prefix) {
+		t.Errorf("url = %q, want prefix %q", url, prefix)
+	}
+	out := decodeAddons(t, strings.TrimPrefix(url, prefix))
+	if out.Callbacks == nil || len(out.Callbacks.Items) != 1 || out.Callbacks.Items[0] != "card.action.trigger" {
+		t.Errorf("decoded callbacks mismatch: %+v", out)
 	}
 }
 
-func TestConsoleScopeGrantURL_EmptyBrandDefaultsFeishu(t *testing.T) {
-	got := consoleScopeGrantURL("", "cli_x", []string{"im:message"})
-	if got != "https://open.feishu.cn/app/cli_x/auth?q=im:message&op_from=openapi&token_type=tenant" {
-		t.Errorf("unexpected url: %s", got)
+func TestMissingScopeAddons_ByIdentity(t *testing.T) {
+	bot := missingScopeAddons(core.AsBot, []string{"im:message"})
+	if bot.Scopes == nil || len(bot.Scopes.Tenant) != 1 || len(bot.Scopes.User) != 0 {
+		t.Errorf("bot scopes = %+v, want tenant-only", bot.Scopes)
+	}
+	user := missingScopeAddons(core.AsUser, []string{"im:message"})
+	if user.Scopes == nil || len(user.Scopes.User) != 1 || len(user.Scopes.Tenant) != 0 {
+		t.Errorf("user scopes = %+v, want user-only", user.Scopes)
+	}
+}
+
+func TestMissingSubscriptionAddons_EventVsCallback(t *testing.T) {
+	ev := missingSubscriptionAddons(eventlib.SubTypeEvent, core.AsBot, []string{"im.message.receive_v1"})
+	if ev.Events == nil || len(ev.Events.Items.Tenant) != 1 {
+		t.Errorf("event addons = %+v, want events.items.tenant", ev.Events)
+	}
+	cb := missingSubscriptionAddons(eventlib.SubTypeCallback, core.AsBot, []string{"card.action.trigger"})
+	if cb.Callbacks == nil || len(cb.Callbacks.Items) != 1 || cb.Events != nil {
+		t.Errorf("callback addons = %+v, want callbacks.items only", cb)
+	}
+}
+
+func TestMissingAddons_EncodeEmptyArraysNotNull(t *testing.T) {
+	// Unused identity sides must encode as [] (not null) so the launcher page's
+	// shape validation treats them as "缺省 -> 空数组" per the addons spec.
+	cases := []ManifestAddons{
+		missingScopeAddons(core.AsBot, []string{"im:message"}),
+		missingScopeAddons(core.AsUser, []string{"im:message"}),
+		missingSubscriptionAddons(eventlib.SubTypeEvent, core.AsBot, []string{"im.message.receive_v1"}),
+	}
+	for i, a := range cases {
+		raw, err := json.Marshal(a)
+		if err != nil {
+			t.Fatalf("case %d marshal: %v", i, err)
+		}
+		if bytes.Contains(raw, []byte("null")) {
+			t.Errorf("case %d encodes a null array, want []: %s", i, raw)
+		}
 	}
 }

cmd/event/consume.go

@@ -146,14 +146,28 @@ func runConsume(cmd *cobra.Command, f *cmdutil.Factory, eventKey string, o consu
 		fmt.Fprintln(preflightErrOut, "[event] skipped console precheck: app has no published version")
 	}
 
+	// Callback subscriptions live in application/get, not app_versions; fetch the
+	// callback 底账 only for callback-type EventKeys. Weak dependency: on error,
+	// leave subscribedCallbacks nil so the callback precheck skips.
+	var subscribedCallbacks []string
+	if keyDef.SubscriptionType == eventlib.SubTypeCallback {
+		cbs, cbErr := appmeta.FetchSubscribedCallbacks(cmd.Context(), botRuntime, cfg.AppID)
+		if cbErr != nil {
+			fmt.Fprintf(preflightErrOut, "[event] skipped console precheck: %s\n", describeAppMetaErr(cbErr))
+		} else {
+			subscribedCallbacks = cbs
+		}
+	}
+
 	pf := &preflightCtx{
-		factory:  f,
-		appID:    cfg.AppID,
-		brand:    cfg.Brand,
-		eventKey: eventKey,
-		identity: identity,
-		keyDef:   keyDef,
-		appVer:   appVer,
+		factory:             f,
+		appID:               cfg.AppID,
+		brand:               cfg.Brand,
+		eventKey:            eventKey,
+		identity:            identity,
+		keyDef:              keyDef,
+		appVer:              appVer,
+		subscribedCallbacks: subscribedCallbacks,
 	}
 	if err := preflightEventTypes(pf); err != nil {
 		return err
@@ -229,6 +243,9 @@ type preflightCtx struct {
 	identity core.Identity
 	keyDef   *eventlib.KeyDefinition
 	appVer   *appmeta.AppVersion
+	// subscribedCallbacks is the application/get 底账 for callback-type EventKeys;
+	// nil means "not fetched / unavailable" → callback precheck skips (weak dependency).
+	subscribedCallbacks []string
 }
 
 // preflightScopes compares required scopes against session-available scopes (user: UAT stored; bot: appVer.TenantScopes).
@@ -266,46 +283,66 @@ func preflightScopes(ctx context.Context, pf *preflightCtx) error {
 		pf.eventKey, pf.identity, strings.Join(missing, ", ")).
 		WithIdentity(string(pf.identity)).
 		WithMissingScopes(missing...).
-		WithHint("%s", scopeRemediationHint(pf.identity, missing, pf.appID, pf.brand))
+		WithHint("%s", scopeRemediationHint(pf.brand, pf.appID, pf.identity, missing))
 }
 
 // scopeRemediationHint returns an identity-appropriate fix for missing scopes.
-func scopeRemediationHint(identity core.Identity, missing []string, appID string, brand core.LarkBrand) string {
+// Bot: the scan-to-enable link adds the scopes to the app manifest, after which
+// the tenant token carries them. User: the scan link only updates the app
+// manifest — the user's own token still lacks the scopes until it is
+// re-authorized — so direct the user to re-login instead.
+func scopeRemediationHint(brand core.LarkBrand, appID string, identity core.Identity, missing []string) string {
 	if identity.IsBot() {
-		return fmt.Sprintf(
-			"grant these scopes and publish a new app version at: %s",
-			consoleScopeGrantURL(brand, appID, missing),
-		)
+		return fmt.Sprintf("grant these scopes by scanning: %s",
+			addonsHintURL(brand, appID, missingScopeAddons(identity, missing)))
 	}
 	return fmt.Sprintf(
 		"run `lark-cli auth login --scope \"%s\"` in the background. It blocks and outputs a verification URL — retrieve the URL and open it in a browser to complete login.",
-		strings.Join(missing, " "),
-	)
+		strings.Join(missing, " "))
 }
 
-// preflightEventTypes verifies every RequiredConsoleEvents entry is subscribed in the app's current published version.
+// preflightEventTypes verifies every RequiredConsoleEvents entry is subscribed
+// in the app's console 底账 — published app_versions for event subscriptions,
+// application/get subscribed_callbacks for callback subscriptions.
 func preflightEventTypes(pf *preflightCtx) error {
-	if pf.appVer == nil || len(pf.keyDef.RequiredConsoleEvents) == 0 {
+	if len(pf.keyDef.RequiredConsoleEvents) == 0 {
 		return nil
 	}
-	subscribed := make(map[string]bool, len(pf.appVer.EventTypes))
-	for _, t := range pf.appVer.EventTypes {
-		subscribed[t] = true
+
+	var subscribed []string
+	noun := "event types"
+	if pf.keyDef.SubscriptionType == eventlib.SubTypeCallback {
+		if pf.subscribedCallbacks == nil {
+			return nil
+		}
+		subscribed = pf.subscribedCallbacks
+		noun = "callbacks"
+	} else {
+		if pf.appVer == nil {
+			return nil
+		}
+		subscribed = pf.appVer.EventTypes
+	}
+
+	have := make(map[string]bool, len(subscribed))
+	for _, t := range subscribed {
+		have[t] = true
 	}
 	var missing []string
 	for _, t := range pf.keyDef.RequiredConsoleEvents {
-		if !subscribed[t] {
+		if !have[t] {
 			missing = append(missing, t)
 		}
 	}
 	if len(missing) == 0 {
 		return nil
 	}
+
+	url := addonsHintURL(pf.brand, pf.appID, missingSubscriptionAddons(pf.keyDef.SubscriptionType, pf.identity, missing))
 	return errs.NewValidationError(errs.SubtypeFailedPrecondition,
-		"EventKey %s requires event types not subscribed in console: %s",
-		pf.keyDef.Key, strings.Join(missing, ", ")).
-		WithHint("subscribe these events and publish a new app version at: %s",
-			consoleEventSubscriptionURL(pf.brand, pf.appID))
+		"EventKey %s requires %s not subscribed in console: %s",
+		pf.keyDef.Key, noun, strings.Join(missing, ", ")).
+		WithHint("subscribe these %s by scanning: %s", noun, url)
 }
 
 // sanitizeOutputDir rejects absolute/parent-escaping paths and ~ (SafeOutputPath treats it as a literal dir name).
@@ -349,9 +386,9 @@ func resolveTenantToken(ctx context.Context, f *cmdutil.Factory, appID string) (
 
 // Sentinels for errors.Is checks; call sites wrap them as typed ValidationError causes.
 var (
-	errInvalidParamFormat = errors.New("invalid --param format")
-	errOutputDirTilde     = errors.New("--output-dir does not support ~ expansion")
-	errOutputDirUnsafe    = errors.New("unsafe --output-dir")
+	errInvalidParamFormat = errors.New("invalid --param format")                    //nolint:forbidigo // sentinel, typed at call sites
+	errOutputDirTilde     = errors.New("--output-dir does not support ~ expansion") //nolint:forbidigo // sentinel, typed at call sites
+	errOutputDirUnsafe    = errors.New("unsafe --output-dir")                       //nolint:forbidigo // sentinel, typed at call sites
 )
 
 func parseParams(raw []string) (map[string]string, error) {

cmd/event/format_helpers_test.go

@@ -270,15 +270,15 @@ func TestExitForOrphan(t *testing.T) {
 	if err == nil {
 		t.Fatal("flag on + orphan → expected error, got nil")
 	}
-	var exit *output.ExitError
+	var exit *output.BareError
 	if !errorAs(err, &exit) || exit.Code != output.ExitValidation {
 		t.Errorf("exit code = %v, want ExitValidation", err)
 	}
 }
 
 func errorAs(err error, target interface{}) bool {
-	if e, ok := err.(*output.ExitError); ok {
-		if t, ok := target.(**output.ExitError); ok {
+	if e, ok := err.(*output.BareError); ok {
+		if t, ok := target.(**output.BareError); ok {
 			*t = e
 			return true
 		}

cmd/event/preflight_test.go

@@ -97,9 +97,9 @@ func TestPreflightEventTypes_MissingBlocks(t *testing.T) {
 		t.Errorf("problem = %s/%s, want %s/%s", p.Category, p.Subtype,
 			errs.CategoryValidation, errs.SubtypeFailedPrecondition)
 	}
-	wantURL := "https://open.feishu.cn/app/cli_XXXXXXXXXXXXXXXX/event"
+	wantURL := "https://open.feishu.cn/page/launcher?clientID=cli_XXXXXXXXXXXXXXXX&addons="
 	if !strings.Contains(p.Hint, wantURL) {
-		t.Errorf("hint missing subscription URL %q\ngot: %s", wantURL, p.Hint)
+		t.Errorf("hint missing scan link %q\ngot: %s", wantURL, p.Hint)
 	}
 }
 
@@ -157,9 +157,8 @@ func TestPreflightScopes_Bot_MissingBlocks(t *testing.T) {
 	}
 	hint := permErr.Hint
 	wantSubstrings := []string{
-		"https://open.feishu.cn/app/cli_x/auth?q=",
-		"im:message.group_at_msg",
-		"token_type=tenant",
+		"grant these scopes by scanning: ",
+		"https://open.feishu.cn/page/launcher?clientID=cli_x&addons=",
 	}
 	for _, want := range wantSubstrings {
 		if !strings.Contains(hint, want) {
@@ -174,3 +173,109 @@ func TestPreflightScopes_NoRequiredScopes_SkipsCheck(t *testing.T) {
 		t.Fatalf("no required scopes means nothing to verify, got: %v", err)
 	}
 }
+
+func TestPreflightEventTypes_CallbackMissing(t *testing.T) {
+	pf := &preflightCtx{
+		appID:               "cli_x",
+		brand:               core.BrandFeishu,
+		eventKey:            "test.cb",
+		identity:            core.AsBot,
+		subscribedCallbacks: []string{"profile.view.get"},
+		keyDef: &eventlib.KeyDefinition{
+			Key:                   "test.cb",
+			SubscriptionType:      eventlib.SubTypeCallback,
+			RequiredConsoleEvents: []string{"card.action.trigger"},
+		},
+	}
+	err := preflightEventTypes(pf)
+	if err == nil {
+		t.Fatal("expected error for missing callback")
+	}
+	if !strings.Contains(err.Error(), "callbacks not subscribed") {
+		t.Errorf("error = %q, want mention of 'callbacks not subscribed'", err.Error())
+	}
+	if !strings.Contains(err.Error(), "card.action.trigger") {
+		t.Errorf("error should name the missing callback, got: %q", err.Error())
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok || p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("problem = %v, want validation/failed_precondition", p)
+	}
+}
+
+func TestPreflightEventTypes_CallbackSkippedWhenNil(t *testing.T) {
+	pf := &preflightCtx{
+		appID:               "cli_x",
+		brand:               core.BrandFeishu,
+		eventKey:            "test.cb",
+		identity:            core.AsBot,
+		subscribedCallbacks: nil, // fetch 失败/拿不到 -> 弱依赖跳过
+		keyDef: &eventlib.KeyDefinition{
+			Key:                   "test.cb",
+			SubscriptionType:      eventlib.SubTypeCallback,
+			RequiredConsoleEvents: []string{"card.action.trigger"},
+		},
+	}
+	if err := preflightEventTypes(pf); err != nil {
+		t.Errorf("expected skip (nil), got %v", err)
+	}
+}
+
+func TestPreflightEventTypes_CallbackEmptyReportsMissing(t *testing.T) {
+	// fetched but zero callbacks subscribed (non-nil empty) is a definitive
+	// console state: a required callback IS missing and must be reported,
+	// not skipped as a weak dependency.
+	pf := &preflightCtx{
+		appID:               "cli_x",
+		brand:               core.BrandFeishu,
+		eventKey:            "test.cb",
+		identity:            core.AsBot,
+		subscribedCallbacks: []string{}, // fetched, none subscribed
+		keyDef: &eventlib.KeyDefinition{
+			Key:                   "test.cb",
+			SubscriptionType:      eventlib.SubTypeCallback,
+			RequiredConsoleEvents: []string{"card.action.trigger"},
+		},
+	}
+	err := preflightEventTypes(pf)
+	if err == nil {
+		t.Fatal("expected error for missing callback when none are subscribed")
+	}
+	if !strings.Contains(err.Error(), "card.action.trigger") {
+		t.Errorf("error should name the missing callback, got: %q", err.Error())
+	}
+}
+
+func TestPreflightEventTypes_CallbackAllSubscribed_Passes(t *testing.T) {
+	pf := &preflightCtx{
+		appID:               "cli_x",
+		brand:               core.BrandFeishu,
+		eventKey:            "test.cb",
+		identity:            core.AsBot,
+		subscribedCallbacks: []string{"card.action.trigger", "profile.view.get"},
+		keyDef: &eventlib.KeyDefinition{
+			Key:                   "test.cb",
+			SubscriptionType:      eventlib.SubTypeCallback,
+			RequiredConsoleEvents: []string{"card.action.trigger"},
+		},
+	}
+	if err := preflightEventTypes(pf); err != nil {
+		t.Errorf("all callbacks subscribed, unexpected error: %v", err)
+	}
+}
+
+func TestScopeRemediationHint_ByIdentity(t *testing.T) {
+	// bot: scan-to-enable link (adds scopes to app manifest)
+	bot := scopeRemediationHint(core.BrandFeishu, "cli_x", core.AsBot, []string{"im:message"})
+	if !strings.Contains(bot, "/page/launcher?clientID=cli_x&addons=") {
+		t.Errorf("bot hint should give the scan link, got: %s", bot)
+	}
+	// user: re-login (scan link cannot grant scopes to the user's own token)
+	user := scopeRemediationHint(core.BrandFeishu, "cli_x", core.AsUser, []string{"im:message"})
+	if !strings.Contains(user, "auth login --scope") {
+		t.Errorf("user hint should direct to auth login, got: %s", user)
+	}
+	if strings.Contains(user, "/page/launcher") {
+		t.Errorf("user hint must NOT use the scan link, got: %s", user)
+	}
+}

cmd/event/status_fail_on_orphan_test.go

@@ -19,12 +19,12 @@ func TestExitForOrphan_Orphan(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected error when failOnOrphan=true and orphan present")
 	}
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var bareErr *output.BareError
+	if !errors.As(err, &bareErr) {
+		t.Fatalf("expected *output.BareError, got %T", err)
 	}
-	if exitErr.Code != output.ExitValidation {
-		t.Errorf("Code = %d, want %d", exitErr.Code, output.ExitValidation)
+	if bareErr.Code != output.ExitValidation {
+		t.Errorf("Code = %d, want %d", bareErr.Code, output.ExitValidation)
 	}
 }
 

cmd/flag_suggest_test.go

@@ -5,10 +5,10 @@ package cmd
 
 import (
 	"errors"
-	"slices"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/spf13/cobra"
 )
@@ -40,31 +40,65 @@ func TestFlagDidYouMean_UnknownFlagSuggestsAndListsValid(t *testing.T) {
 	c.Flags().Bool("dry-run", false, "")
 
 	err := flagDidYouMean(c, errors.New("unknown flag: --rang")) // typo of --range
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	if exitErr.Detail.Type != "unknown_flag" {
-		t.Errorf("type = %q, want unknown_flag", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
 	}
-	if !strings.Contains(exitErr.Detail.Hint, "--range") {
-		t.Errorf("hint should suggest --range, got %q", exitErr.Detail.Hint)
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	detail, _ := exitErr.Detail.Detail.(map[string]any)
-	valid, _ := detail["valid_flags"].([]string)
-	if !slices.Contains(valid, "find") || !slices.Contains(valid, "range") {
-		t.Errorf("valid_flags should list find & range, got %v", valid)
+	// The offending flag is carried structurally on Params (replaces the
+	// legacy detail map) and named in the message.
+	if len(verr.Params) != 1 || verr.Params[0].Name != "--rang" {
+		t.Errorf("Params = %v, want one entry named --rang", verr.Params)
+	}
+	if len(verr.Params) == 1 && verr.Params[0].Reason == "" {
+		t.Error("Params[0].Reason must explain the rejection")
+	}
+	if !strings.Contains(verr.Message, "--rang") {
+		t.Errorf("message should name the offending flag, got %q", verr.Message)
+	}
+	// The ranked candidate rides on the param as a machine-readable suggestion
+	// so an agent can retry without parsing prose.
+	if len(verr.Params) == 1 {
+		found := false
+		for _, s := range verr.Params[0].Suggestions {
+			if s == "--range" {
+				found = true
+			}
+		}
+		if !found {
+			t.Errorf("Params[0].Suggestions should include --range, got %v", verr.Params[0].Suggestions)
+		}
+	}
+	// The same candidate is also carried in the human-facing hint.
+	if !strings.Contains(verr.Hint, "--range") {
+		t.Errorf("hint should suggest --range, got %q", verr.Hint)
 	}
 }
 
 func TestFlagDidYouMean_OtherErrorStaysGeneric(t *testing.T) {
 	c := &cobra.Command{Use: "demo"}
 	err := flagDidYouMean(c, errors.New("flag needs an argument: --find"))
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	if exitErr.Detail.Type != "flag_error" {
-		t.Errorf("type = %q, want flag_error (non-unknown-flag errors stay generic)", exitErr.Detail.Type)
+	// Non-unknown-flag errors stay generic: invalid_argument subtype, no
+	// structured param, generic --help hint (no "did you mean" suggestion).
+	if verr.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("subtype = %q, want invalid_argument (non-unknown-flag errors stay generic)", verr.Subtype)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if verr.Param != "" || len(verr.Params) != 0 {
+		t.Errorf("Param=%q Params=%v, want both empty for generic flag error", verr.Param, verr.Params)
+	}
+	if strings.Contains(verr.Hint, "did you mean") {
+		t.Errorf("generic flag error must not produce a did-you-mean hint, got %q", verr.Hint)
 	}
 }

cmd/platform_bootstrap_test.go

@@ -9,10 +9,12 @@ import (
 	"errors"
 	"os"
 	"path/filepath"
+	"strings"
 	"testing"
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -102,7 +104,7 @@ func findLeaf(t *testing.T, parent *cobra.Command, names ...string) *cobra.Comma
 }
 
 // Happy path: a valid policy.yml denies one specific command. The denied
-// command's RunE returns a typed ExitError envelope; allowed commands are
+// command's RunE returns a typed error envelope; allowed commands are
 // untouched.
 func TestApplyUserPolicyPruning_appliesValidPolicy(t *testing.T) {
 	cfgDir := tmpHome(t)
@@ -127,13 +129,27 @@ max_risk: write
 	if err == nil {
 		t.Fatalf("+delete-doc RunE should return an error")
 	}
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil || exitErr.Detail.Type != "command_denied" {
-		t.Fatalf("expected command_denied ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	detail, ok := exitErr.Detail.Detail.(map[string]any)
-	if !ok || detail["reason_code"] != "command_denylisted" {
-		t.Errorf("reason_code = %v, want command_denylisted", detail["reason_code"])
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	// The denial taxonomy (reason_code, layer, rule) is preserved on the
+	// wrapped *platform.CommandDeniedError cause and folded into the hint.
+	var cd *platform.CommandDeniedError
+	if !errors.As(err, &cd) {
+		t.Fatalf("error chain should expose *platform.CommandDeniedError")
+	}
+	if cd.ReasonCode != "command_denylisted" {
+		t.Errorf("CommandDeniedError.ReasonCode = %q, want command_denylisted", cd.ReasonCode)
+	}
+	if !strings.Contains(verr.Hint, "command_denylisted") {
+		t.Errorf("hint should surface reason_code command_denylisted, got %q", verr.Hint)
 	}
 
 	// im/+send must be denied (domain not in Allow).

cmd/platform_guards.go

@@ -8,9 +8,9 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/hook"
-	"github.com/larksuite/cli/internal/output"
 	internalplatform "github.com/larksuite/cli/internal/platform"
 )
 
@@ -34,16 +34,8 @@ import (
 // lands directly on their RunE, which now carries the guard.
 //
 // makeErr is called for every guarded dispatch; it must return a fresh
-// *output.ExitError each time (the envelope writer mutates a few fields
-// as it serialises).
-// Deprecated: installFatalGuard accepts a *output.ExitError-producing lambda,
-// which is part of the legacy error surface that predates the typed error
-// contract introduced by errs/. New code MUST NOT add new callers — the
-// platform-extension fatal-guard plumbing will switch to typed errs.* errors
-// when the platform-extension framework migrates. This wrapper is retained
-// only for the existing in-tree call sites; it will be removed once they
-// have moved to the typed surface.
-func installFatalGuard(rootCmd *cobra.Command, makeErr func() *output.ExitError) {
+// typed error each time.
+func installFatalGuard(rootCmd *cobra.Command, makeErr func() error) {
 	// Two cobra subcommands are injected lazily at Execute() time and
 	// would otherwise slip past walkGuard. We pre-register both so
 	// walkGuard catches them.
@@ -80,120 +72,65 @@ func installFatalGuard(rootCmd *cobra.Command, makeErr func() *output.ExitError)
 }
 
 // installPluginInstallErrorGuard surfaces a FailClosed plugin install
-// failure as a structured plugin_install envelope before any command
-// runs.
-// Deprecated: installPluginInstallErrorGuard produces a legacy
-// *output.ExitError via its internal makeErr lambda. New code MUST NOT add
-// such producers — plugin install failures should surface as a typed
-// *errs.XxxError once the platform-extension framework migrates. This
-// helper is retained only while existing call sites are migrated; it will
-// be removed once they have moved to the typed surface.
+// failure as a typed validation error (failed_precondition) before any
+// command runs.
 func installPluginInstallErrorGuard(rootCmd *cobra.Command, installErr error) {
-	makeErr := func() *output.ExitError {
+	makeErr := func() error {
 		var pi *internalplatform.PluginInstallError
 		if errors.As(installErr, &pi) {
-			return &output.ExitError{
-				Code: output.ExitValidation,
-				Detail: &output.ErrDetail{
-					Type:    "plugin_install",
-					Message: pi.Error(),
-					Detail: map[string]any{
-						"plugin":      pi.PluginName,
-						"reason_code": pi.ReasonCode,
-						"reason":      pi.Reason,
-					},
-				},
-				Err: installErr,
-			}
-		}
-		return &output.ExitError{
-			Code: output.ExitValidation,
-			Detail: &output.ErrDetail{
-				Type:    "plugin_install",
-				Message: installErr.Error(),
-				Detail: map[string]any{
-					"reason_code": internalplatform.ReasonInstallFailed,
-				},
-			},
-			Err: installErr,
+			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", pi.Error()).
+				WithHint("plugin %q failed to install (reason_code %s); fix or remove the plugin before running commands", pi.PluginName, pi.ReasonCode).
+				WithCause(installErr)
 		}
+		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", installErr.Error()).
+			WithHint("a plugin failed to install (reason_code %s); fix or remove the plugin before running commands", internalplatform.ReasonInstallFailed).
+			WithCause(installErr)
 	}
 	installFatalGuard(rootCmd, makeErr)
 }
 
 // installPluginConflictGuard surfaces a Plugin.Restrict() configuration
 // error (single plugin invalid Rule or multiple plugins each contributing
-// Restrict). The design separates the envelope type:
+// Restrict). The hint separates the two failure modes by reason code:
 //
-//   - "plugin_install" with reason_code "invalid_rule"           - single bad rule
-//   - "plugin_conflict" with reason_code "multiple_restrict_plugins" - multi
+//   - "invalid_rule"              - single bad rule
+//   - "multiple_restrict_plugins" - multiple Restrict plugins conflict
 //
 // Either way the CLI must NOT silently continue with a broken policy.
-// Deprecated: installPluginConflictGuard produces a legacy *output.ExitError
-// via its internal makeErr lambda. New code MUST NOT add such producers —
-// plugin conflict failures should surface as a typed *errs.XxxError once the
-// platform-extension framework migrates. This helper is retained only while
-// existing call sites are migrated; it will be removed once they have moved
-// to the typed surface.
 func installPluginConflictGuard(rootCmd *cobra.Command, err error) {
-	makeErr := func() *output.ExitError {
-		envelopeType := "plugin_install"
+	makeErr := func() error {
 		reasonCode := internalplatform.ReasonInvalidRule
 		if errors.Is(err, cmdpolicy.ErrMultipleRestricts) {
-			envelopeType = "plugin_conflict"
 			reasonCode = internalplatform.ReasonMultipleRestricts
 		}
-		return &output.ExitError{
-			Code: output.ExitValidation,
-			Detail: &output.ErrDetail{
-				Type:    envelopeType,
-				Message: err.Error(),
-				Detail: map[string]any{
-					"reason_code": reasonCode,
-				},
-			},
-			Err: err,
-		}
+		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", err.Error()).
+			WithHint("plugin policy configuration is broken (reason_code %s); fix the plugin's Restrict rule or remove the conflicting plugin", reasonCode).
+			WithCause(err)
 	}
 	installFatalGuard(rootCmd, makeErr)
 }
 
 // installPluginLifecycleErrorGuard surfaces a Startup lifecycle handler
-// failure as a plugin_lifecycle envelope. The reason_code splits
-// returned-error vs panic so consumers (audit / on-call) can tell the
-// two failure modes apart.
-// Deprecated: installPluginLifecycleErrorGuard produces a legacy
-// *output.ExitError via its internal makeErr lambda. New code MUST NOT add
-// such producers — plugin lifecycle failures should surface as a typed
-// *errs.XxxError once the platform-extension framework migrates. This
-// helper is retained only while existing call sites are migrated; it will
-// be removed once they have moved to the typed surface.
+// failure as a typed validation error (failed_precondition). The hint's
+// reason code splits returned-error vs panic so consumers (audit /
+// on-call) can tell the two failure modes apart.
 func installPluginLifecycleErrorGuard(rootCmd *cobra.Command, err error) {
-	makeErr := func() *output.ExitError {
+	makeErr := func() error {
 		reasonCode := "lifecycle_failed"
-		detail := map[string]any{
-			"reason_code": reasonCode,
-		}
+		hookName := ""
 		var le *hook.LifecycleError
 		if errors.As(err, &le) {
 			if le.Panic {
 				reasonCode = "lifecycle_panic"
 			}
-			detail = map[string]any{
-				"reason_code": reasonCode,
-				"hook_name":   le.HookName,
-				"event":       "startup",
-			}
+			hookName = le.HookName
 		}
-		return &output.ExitError{
-			Code: output.ExitValidation,
-			Detail: &output.ErrDetail{
-				Type:    "plugin_lifecycle",
-				Message: err.Error(),
-				Detail:  detail,
-			},
-			Err: err,
+		typed := errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", err.Error()).
+			WithCause(err)
+		if hookName != "" {
+			return typed.WithHint("plugin startup hook %q failed (reason_code %s); fix or remove the plugin before running commands", hookName, reasonCode)
 		}
+		return typed.WithHint("a plugin startup hook failed (reason_code %s); fix or remove the plugin before running commands", reasonCode)
 	}
 	installFatalGuard(rootCmd, makeErr)
 }
@@ -219,14 +156,7 @@ func installPluginLifecycleErrorGuard(rootCmd *cobra.Command, err error) {
 //
 // This way the very first non-nil step in cobra's chain is always our
 // guard, regardless of which leaf the user invoked.
-// Deprecated: walkGuard accepts a *output.ExitError-producing lambda, part
-// of the legacy error surface that predates the typed error contract
-// introduced by errs/. New code MUST NOT add new callers — the platform-
-// extension guard plumbing will switch to typed errs.* errors when the
-// platform-extension framework migrates. This wrapper is retained only for
-// the existing in-tree call sites; it will be removed once they have moved
-// to the typed surface.
-func walkGuard(cmd *cobra.Command, makeErr func() *output.ExitError) {
+func walkGuard(cmd *cobra.Command, makeErr func() error) {
 	if cmd == nil {
 		return
 	}

cmd/platform_guards_test.go

@@ -6,12 +6,14 @@ package cmd
 import (
 	"context"
 	"errors"
+	"strings"
 	"sync"
 	"testing"
 	"time"
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/hook"
 	"github.com/larksuite/cli/internal/output"
@@ -32,7 +34,7 @@ func (failClosedAbortingPlugin) Install(platform.Registrar) error {
 }
 
 // When a FailClosed plugin fails to install, buildInternal must
-// install a PersistentPreRunE that returns a structured *output.ExitError.
+// install a PersistentPreRunE that returns a typed *errs.ValidationError.
 // The user must NEVER see a silent partial-install state.
 //
 // This pins the build.go fix for codex's NEW ISSUE about
@@ -93,26 +95,31 @@ func TestBuildInternal_failClosedAbortsCLI(t *testing.T) {
 	checkGuardError(t, leaf.RunE(leaf, nil))
 }
 
-// checkGuardError asserts that err is the structured plugin_install
-// ExitError the guard produces.
+// checkGuardError asserts that err is the typed validation error the
+// install guard produces: a failed_precondition *errs.ValidationError
+// (exit 2) whose message + hint preserve the plugin name and the
+// install_failed reason code (the recovery info that lived in the legacy
+// detail map).
 func checkGuardError(t *testing.T, err error) {
 	t.Helper()
 	if err == nil {
 		t.Fatalf("PersistentPreRunE must surface the install error, got nil")
 	}
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "plugin_install" {
-		t.Errorf("envelope type = %q, want plugin_install", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	detail := exitErr.Detail.Detail.(map[string]any)
-	if detail["plugin"] != "policy" {
-		t.Errorf("detail.plugin = %v, want policy", detail["plugin"])
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	if detail["reason_code"] != internalplatform.ReasonInstallFailed {
-		t.Errorf("detail.reason_code = %v, want install_failed", detail["reason_code"])
+	if !strings.Contains(verr.Hint, "policy") {
+		t.Errorf("hint should name the failing plugin %q, got %q", "policy", verr.Hint)
+	}
+	if !strings.Contains(verr.Hint, internalplatform.ReasonInstallFailed) {
+		t.Errorf("hint should surface reason_code %q, got %q", internalplatform.ReasonInstallFailed, verr.Hint)
 	}
 }
 

cmd/plugin_integration_test.go

@@ -8,11 +8,13 @@ import (
 	"errors"
 	"os"
 	"path/filepath"
+	"strings"
 	"sync/atomic"
 	"testing"
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -156,19 +158,23 @@ func TestPluginPipeline_wrapAbortReachesEnvelope(t *testing.T) {
 	}
 
 	err = leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "hook" {
-		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	detail := exitErr.Detail.Detail.(map[string]any)
-	if detail["reason_code"] != "aborted" {
-		t.Errorf("detail.reason_code = %v, want aborted", detail["reason_code"])
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	if detail["hook_name"] != "policy-plugin.policy" {
-		t.Errorf("detail.hook_name = %v, want policy-plugin.policy", detail["hook_name"])
+	// The namespaced hook name and the abort semantics are preserved in the
+	// message so a caller can identify which plugin hook rejected the call.
+	if !strings.Contains(verr.Message, "policy-plugin.policy") {
+		t.Errorf("message should name the aborting hook policy-plugin.policy, got %q", verr.Message)
+	}
+	if !strings.Contains(verr.Message, "aborted") {
+		t.Errorf("message should describe the abort, got %q", verr.Message)
 	}
 
 	// errors.As must still reach the original AbortError so consumers
@@ -409,15 +415,20 @@ func TestPluginConflictGuard_MultipleRestrictAbortsCLI(t *testing.T) {
 		t.Fatalf("no runnable leaf in command tree")
 	}
 	err := leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "plugin_conflict" {
-		t.Errorf("envelope type = %q, want plugin_conflict", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	if rc := exitErr.Detail.Detail.(map[string]any)["reason_code"]; rc != "multiple_restrict_plugins" {
-		t.Errorf("reason_code = %v, want multiple_restrict_plugins", rc)
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	// reason_code multiple_restrict_plugins is folded into the hint so the
+	// operator can distinguish a multi-Restrict conflict from a bad rule.
+	if !strings.Contains(verr.Hint, "multiple_restrict_plugins") {
+		t.Errorf("hint should surface reason_code multiple_restrict_plugins, got %q", verr.Hint)
 	}
 }
 
@@ -447,15 +458,20 @@ func TestPluginConflictGuard_InvalidRuleAbortsCLI(t *testing.T) {
 		t.Fatalf("no runnable leaf in command tree")
 	}
 	err := leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "plugin_install" {
-		t.Errorf("envelope type = %q, want plugin_install", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	if rc := exitErr.Detail.Detail.(map[string]any)["reason_code"]; rc != "invalid_rule" {
-		t.Errorf("reason_code = %v, want invalid_rule", rc)
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	// reason_code invalid_rule is folded into the hint, distinct from the
+	// multiple_restrict_plugins conflict path.
+	if !strings.Contains(verr.Hint, "invalid_rule") {
+		t.Errorf("hint should surface reason_code invalid_rule, got %q", verr.Hint)
 	}
 }
 
@@ -484,19 +500,24 @@ func TestPluginLifecycleGuard_StartupErrorAbortsCLI(t *testing.T) {
 
 	leaf := findRunnableLeaf(root)
 	err := leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "plugin_lifecycle" {
-		t.Errorf("envelope type = %q, want plugin_lifecycle", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	d := exitErr.Detail.Detail.(map[string]any)
-	if d["reason_code"] != "lifecycle_failed" {
-		t.Errorf("reason_code = %v, want lifecycle_failed", d["reason_code"])
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	if d["hook_name"] != "lc.start" {
-		t.Errorf("hook_name = %v, want lc.start", d["hook_name"])
+	// reason_code lifecycle_failed (vs lifecycle_panic) and the failing
+	// hook name are folded into the hint so audit / on-call can tell the
+	// failure mode and which hook failed.
+	if !strings.Contains(verr.Hint, "lifecycle_failed") {
+		t.Errorf("hint should surface reason_code lifecycle_failed, got %q", verr.Hint)
+	}
+	if !strings.Contains(verr.Hint, "lc.start") {
+		t.Errorf("hint should name the failing hook lc.start, got %q", verr.Hint)
 	}
 }
 
@@ -520,12 +541,20 @@ func TestPluginLifecycleGuard_StartupPanicAbortsCLI(t *testing.T) {
 	}
 	leaf := findRunnableLeaf(root)
 	err := leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	if rc := exitErr.Detail.Detail.(map[string]any)["reason_code"]; rc != "lifecycle_panic" {
-		t.Errorf("reason_code = %v, want lifecycle_panic", rc)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	// A panicking startup hook is distinguished from a returned error by
+	// reason_code lifecycle_panic in the hint.
+	if !strings.Contains(verr.Hint, "lifecycle_panic") {
+		t.Errorf("hint should surface reason_code lifecycle_panic, got %q", verr.Hint)
 	}
 }
 
@@ -579,19 +608,24 @@ func TestWrapperPanic_BecomesHookPanicEnvelope(t *testing.T) {
 	}()
 
 	err = leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "hook" {
-		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	d := exitErr.Detail.Detail.(map[string]any)
-	if d["reason_code"] != "panic" {
-		t.Errorf("reason_code = %v, want panic", d["reason_code"])
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	if d["hook_name"] != "p.boom" {
-		t.Errorf("hook_name = %v, want p.boom (namespaced)", d["hook_name"])
+	// The recovered panic surfaces as a structured error naming the
+	// namespaced hook (p.boom) and describing the panic, so the process
+	// never crashes and the caller can attribute the failure.
+	if !strings.Contains(verr.Message, "p.boom") {
+		t.Errorf("message should name the namespaced hook p.boom, got %q", verr.Message)
+	}
+	if !strings.Contains(verr.Message, "panic") {
+		t.Errorf("message should describe the panic, got %q", verr.Message)
 	}
 }
 
@@ -653,19 +687,24 @@ func TestWrapperFactoryPanic_BecomesHookPanicEnvelope(t *testing.T) {
 	}()
 
 	err = leaf.RunE(leaf, nil)
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError, got %T %+v", err, err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T %+v", err, err)
 	}
-	if exitErr.Detail.Type != "hook" {
-		t.Errorf("envelope type = %q, want hook", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	d := exitErr.Detail.Detail.(map[string]any)
-	if d["reason_code"] != "panic" {
-		t.Errorf("reason_code = %v, want panic", d["reason_code"])
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	if d["hook_name"] != "fac.bad-factory" {
-		t.Errorf("hook_name = %v, want fac.bad-factory (namespaced)", d["hook_name"])
+	// A panic in the wrapper FACTORY (not just the inner handler) is
+	// recovered into the same structured panic error, naming the
+	// namespaced hook fac.bad-factory.
+	if !strings.Contains(verr.Message, "fac.bad-factory") {
+		t.Errorf("message should name the namespaced hook fac.bad-factory, got %q", verr.Message)
+	}
+	if !strings.Contains(verr.Message, "panic") {
+		t.Errorf("message should describe the panic, got %q", verr.Message)
 	}
 }
 

cmd/profile/add.go

@@ -12,6 +12,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/i18n"
@@ -53,7 +54,9 @@ func NewCmdProfileAdd(f *cmdutil.Factory) *cobra.Command {
 
 func profileAddRun(f *cmdutil.Factory, name, appID string, appSecretStdin bool, brand, lang string, useAfter bool) error {
 	if err := core.ValidateProfileName(name); err != nil {
-		return output.ErrValidation("%v", err)
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%v", err).
+			WithCause(err).
+			WithParam("--name")
 	}
 
 	langPref, err := cmdutil.ParseLangFlag(lang)
@@ -64,46 +67,57 @@ func profileAddRun(f *cmdutil.Factory, name, appID string, appSecretStdin bool,
 
 	// Read secret from stdin
 	if !appSecretStdin {
-		return output.ErrValidation("app secret must be provided via stdin: use --app-secret-stdin and pipe the secret")
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "app secret must be provided via stdin").
+			WithHint("use --app-secret-stdin and pipe the secret").
+			WithParam("--app-secret-stdin")
 	}
 	scanner := bufio.NewScanner(f.IOStreams.In)
 	if !scanner.Scan() {
 		if err := scanner.Err(); err != nil {
-			return output.ErrValidation("failed to read secret from stdin: %v", err)
+			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "failed to read secret from stdin: %v", err).
+				WithCause(err).
+				WithParam("--app-secret-stdin")
 		}
-		return output.ErrValidation("stdin is empty, expected app secret")
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "stdin is empty, expected app secret").
+			WithHint("pipe the app secret to stdin").
+			WithParam("--app-secret-stdin")
 	}
 	appSecret := strings.TrimSpace(scanner.Text())
 	if appSecret == "" {
-		return output.ErrValidation("app secret read from stdin is empty")
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "app secret read from stdin is empty").
+			WithHint("pipe a non-empty app secret to stdin").
+			WithParam("--app-secret-stdin")
 	}
 
 	// Load or create config
 	multi, err := core.LoadMultiAppConfig()
 	if err != nil {
 		if !errors.Is(err, os.ErrNotExist) {
-			return output.Errorf(output.ExitInternal, "internal", "failed to load config: %v", err)
+			return errs.NewInternalError(errs.SubtypeFileIO, "failed to load config: %v", err).WithCause(err)
 		}
 		multi = &core.MultiAppConfig{}
 	}
 
 	// Check name uniqueness
 	if multi.FindApp(name) != nil {
-		return output.ErrValidation("profile %q already exists", name)
+		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "profile %q already exists", name).
+			WithHint("choose a different name, or remove the existing profile first").
+			WithParam("--name")
 	}
 
 	// Check app-id uniqueness — keychain stores secrets by appId, so
 	// multiple profiles sharing the same appId would collide on credentials.
 	for _, a := range multi.Apps {
 		if a.AppId == appID {
-			return output.ErrValidation("app-id %q is already used by profile %q; each profile must have a unique app-id", appID, a.ProfileName())
+			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "app-id %q is already used by profile %q; each profile must have a unique app-id", appID, a.ProfileName()).
+				WithParam("--app-id")
 		}
 	}
 
 	// Store secret securely
 	secret, err := core.ForStorage(appID, core.PlainSecret(appSecret), f.Keychain)
 	if err != nil {
-		return output.Errorf(output.ExitInternal, "internal", "%v", err)
+		return errs.NewInternalError(errs.SubtypeStorage, "%v", err).WithCause(err)
 	}
 
 	parsedBrand := core.ParseBrand(brand)
@@ -134,7 +148,7 @@ func profileAddRun(f *cmdutil.Factory, name, appID string, appSecretStdin bool,
 	}
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
+		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 	}
 
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Profile %q added (%s, %s)", name, appID, parsedBrand))

cmd/profile/list.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -45,7 +46,7 @@ func profileListRun(f *cmdutil.Factory) error {
 			output.PrintJson(f.IOStreams.Out, []profileListItem{})
 			return nil
 		}
-		return output.Errorf(output.ExitValidation, "config", "failed to load config: %v", err)
+		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "failed to load config: %v", err).WithCause(err)
 	}
 	if multi == nil || len(multi.Apps) == 0 {
 		output.PrintJson(f.IOStreams.Out, []profileListItem{})

cmd/profile/profile_test.go

@@ -11,6 +11,7 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/i18n"
@@ -50,6 +51,16 @@ func TestProfileAddRun_InvalidExistingConfigReturnsError(t *testing.T) {
 	if !strings.Contains(err.Error(), "failed to load config") {
 		t.Fatalf("error = %v, want failed to load config", err)
 	}
+	var internalErr *errs.InternalError
+	if !errors.As(err, &internalErr) {
+		t.Fatalf("error type = %T, want *errs.InternalError; err=%v", err, err)
+	}
+	if internalErr.Subtype != errs.SubtypeFileIO {
+		t.Fatalf("subtype = %q, want %q", internalErr.Subtype, errs.SubtypeFileIO)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitInternal {
+		t.Fatalf("exit code = %d, want %d (ExitInternal)", code, output.ExitInternal)
+	}
 }
 
 // TestProfileAddRun_Lang covers the unified --lang contract on profile add:
@@ -95,9 +106,9 @@ func TestProfileAddRun_Lang(t *testing.T) {
 		if err == nil {
 			t.Fatal("expected validation error for --lang ZH, got nil")
 		}
-		exitErr, ok := err.(*output.ExitError)
-		if !ok || exitErr.Code != output.ExitValidation {
-			t.Fatalf("expected ExitValidation, got %T: %v", err, err)
+		var valErr *errs.ValidationError
+		if !errors.As(err, &valErr) || output.ExitCodeOf(err) != output.ExitValidation {
+			t.Fatalf("expected typed validation error with ExitValidation, got %T: %v", err, err)
 		}
 	})
 }
@@ -406,17 +417,226 @@ func TestProfileUseRun_SaveFailureReturnsStructuredError(t *testing.T) {
 func assertInternalExitError(t *testing.T, err error, wantMsg string) {
 	t.Helper()
 
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("error type = %T, want *output.ExitError; err=%v", err, err)
+	var internalErr *errs.InternalError
+	if !errors.As(err, &internalErr) {
+		t.Fatalf("error type = %T, want *errs.InternalError; err=%v", err, err)
 	}
-	if exitErr.Code != output.ExitInternal {
-		t.Fatalf("exit code = %d, want %d", exitErr.Code, output.ExitInternal)
+	if internalErr.Subtype != errs.SubtypeStorage {
+		t.Fatalf("subtype = %q, want %q", internalErr.Subtype, errs.SubtypeStorage)
 	}
-	if exitErr.Detail == nil || exitErr.Detail.Type != "internal" {
-		t.Fatalf("detail = %#v, want internal detail", exitErr.Detail)
+	if internalErr.Cause == nil {
+		t.Fatalf("cause = nil, want wrapped underlying error")
 	}
-	if !strings.Contains(exitErr.Detail.Message, wantMsg) {
-		t.Fatalf("message = %q, want contains %q", exitErr.Detail.Message, wantMsg)
+	if !strings.Contains(internalErr.Message, wantMsg) {
+		t.Fatalf("message = %q, want contains %q", internalErr.Message, wantMsg)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitInternal {
+		t.Fatalf("exit code = %d, want %d (ExitInternal)", code, output.ExitInternal)
+	}
+}
+
+// assertValidationError asserts err is a typed *errs.ValidationError with the
+// given subtype, message fragment, and exit code 2.
+func assertValidationError(t *testing.T, err error, wantSubtype errs.Subtype, wantMsg string) *errs.ValidationError {
+	t.Helper()
+
+	if err == nil {
+		t.Fatal("expected error, got nil")
+	}
+	var valErr *errs.ValidationError
+	if !errors.As(err, &valErr) {
+		t.Fatalf("error type = %T, want *errs.ValidationError; err=%v", err, err)
+	}
+	if valErr.Subtype != wantSubtype {
+		t.Fatalf("subtype = %q, want %q", valErr.Subtype, wantSubtype)
+	}
+	if !strings.Contains(valErr.Message, wantMsg) {
+		t.Fatalf("message = %q, want contains %q", valErr.Message, wantMsg)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Fatalf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	return valErr
+}
+
+func saveTwoProfiles(t *testing.T) {
+	t.Helper()
+	multi := &core.MultiAppConfig{
+		CurrentApp: "default",
+		Apps: []core.AppConfig{
+			{Name: "default", AppId: "app-default", AppSecret: core.PlainSecret("secret-default"), Brand: core.BrandFeishu},
+			{Name: "target", AppId: "app-target", AppSecret: core.PlainSecret("secret-target"), Brand: core.BrandLark},
+		},
+	}
+	if err := core.SaveMultiAppConfig(multi); err != nil {
+		t.Fatalf("SaveMultiAppConfig() error = %v", err)
+	}
+}
+
+func TestProfileAddRun_ValidationErrors(t *testing.T) {
+	t.Run("invalid profile name", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		f.IOStreams.In = strings.NewReader("secret\n")
+		err := profileAddRun(f, "bad name!", "app-x", true, "feishu", "", false)
+		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "")
+		if valErr.Param != "--name" {
+			t.Fatalf("param = %q, want %q", valErr.Param, "--name")
+		}
+		if valErr.Cause == nil {
+			t.Fatal("cause = nil, want wrapped validation error")
+		}
+	})
+
+	t.Run("missing app-secret-stdin flag", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileAddRun(f, "p", "app-x", false, "feishu", "", false)
+		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "app secret must be provided via stdin")
+		if valErr.Param != "--app-secret-stdin" {
+			t.Fatalf("param = %q, want %q", valErr.Param, "--app-secret-stdin")
+		}
+		if valErr.Hint == "" {
+			t.Fatal("hint is empty, want actionable hint")
+		}
+	})
+
+	t.Run("empty stdin", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		f.IOStreams.In = strings.NewReader("")
+		err := profileAddRun(f, "p", "app-x", true, "feishu", "", false)
+		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "stdin is empty")
+		if valErr.Param != "--app-secret-stdin" {
+			t.Fatalf("param = %q, want %q", valErr.Param, "--app-secret-stdin")
+		}
+	})
+
+	t.Run("blank secret on stdin", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		f.IOStreams.In = strings.NewReader("   \n")
+		err := profileAddRun(f, "p", "app-x", true, "feishu", "", false)
+		assertValidationError(t, err, errs.SubtypeInvalidArgument, "app secret read from stdin is empty")
+	})
+
+	t.Run("duplicate profile name", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		f.IOStreams.In = strings.NewReader("secret\n")
+		err := profileAddRun(f, "default", "app-new", true, "feishu", "", false)
+		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, `profile "default" already exists`)
+		if valErr.Param != "--name" {
+			t.Fatalf("param = %q, want %q", valErr.Param, "--name")
+		}
+	})
+
+	t.Run("duplicate app-id", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		f.IOStreams.In = strings.NewReader("secret\n")
+		err := profileAddRun(f, "fresh", "app-default", true, "feishu", "", false)
+		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "already used by profile")
+		if valErr.Param != "--app-id" {
+			t.Fatalf("param = %q, want %q", valErr.Param, "--app-id")
+		}
+	})
+}
+
+func TestProfileUseRun_ValidationErrors(t *testing.T) {
+	t.Run("no previous profile for toggle", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileUseRun(f, "-")
+		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "no previous profile to switch back to")
+		if valErr.Hint == "" {
+			t.Fatal("hint is empty, want actionable hint")
+		}
+	})
+
+	t.Run("profile not found", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileUseRun(f, "ghost")
+		assertValidationError(t, err, errs.SubtypeInvalidArgument, `profile "ghost" not found`)
+	})
+}
+
+func TestProfileRenameRun_ValidationErrors(t *testing.T) {
+	t.Run("invalid new name", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileRenameRun(f, "default", "bad name!")
+		valErr := assertValidationError(t, err, errs.SubtypeInvalidArgument, "")
+		if valErr.Cause == nil {
+			t.Fatal("cause = nil, want wrapped validation error")
+		}
+	})
+
+	t.Run("old profile not found", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileRenameRun(f, "ghost", "fresh")
+		assertValidationError(t, err, errs.SubtypeInvalidArgument, `profile "ghost" not found`)
+	})
+
+	t.Run("new name already exists", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileRenameRun(f, "default", "target")
+		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, `profile "target" already exists`)
+		if valErr.Hint == "" {
+			t.Fatal("hint is empty, want actionable hint")
+		}
+	})
+}
+
+func TestProfileRemoveRun_ValidationErrors(t *testing.T) {
+	t.Run("profile not found", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		saveTwoProfiles(t)
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileRemoveRun(f, "ghost")
+		assertValidationError(t, err, errs.SubtypeInvalidArgument, `profile "ghost" not found`)
+	})
+
+	t.Run("cannot remove the only profile", func(t *testing.T) {
+		setupProfileConfigDir(t)
+		multi := &core.MultiAppConfig{
+			CurrentApp: "solo",
+			Apps: []core.AppConfig{
+				{Name: "solo", AppId: "app-solo", AppSecret: core.PlainSecret("secret-solo"), Brand: core.BrandFeishu},
+			},
+		}
+		if err := core.SaveMultiAppConfig(multi); err != nil {
+			t.Fatalf("SaveMultiAppConfig() error = %v", err)
+		}
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		err := profileRemoveRun(f, "solo")
+		valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "cannot remove the only profile")
+		if valErr.Hint == "" {
+			t.Fatal("hint is empty, want actionable hint")
+		}
+	})
+}
+
+func TestProfileListRun_InvalidConfigReturnsValidationError(t *testing.T) {
+	dir := setupProfileConfigDir(t)
+	if err := os.WriteFile(filepath.Join(dir, "config.json"), []byte("{invalid json"), 0600); err != nil {
+		t.Fatalf("WriteFile() error = %v", err)
+	}
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	err := profileListRun(f)
+	valErr := assertValidationError(t, err, errs.SubtypeFailedPrecondition, "failed to load config")
+	if valErr.Cause == nil {
+		t.Fatal("cause = nil, want wrapped load error")
 	}
 }

cmd/profile/remove.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
@@ -40,11 +41,12 @@ func profileRemoveRun(f *cmdutil.Factory, name string) error {
 
 	idx := multi.FindAppIndex(name)
 	if idx < 0 {
-		return output.ErrValidation("profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
 	}
 
 	if len(multi.Apps) == 1 {
-		return output.ErrValidation("cannot remove the only profile")
+		return errs.NewValidationError(errs.SubtypeFailedPrecondition, "cannot remove the only profile").
+			WithHint("add another profile first: lark-cli profile add")
 	}
 
 	app := &multi.Apps[idx]
@@ -65,7 +67,7 @@ func profileRemoveRun(f *cmdutil.Factory, name string) error {
 	}
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
+		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 	}
 
 	// Best-effort credential cleanup after config commit

cmd/profile/rename.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
@@ -30,7 +31,7 @@ func NewCmdProfileRename(f *cmdutil.Factory) *cobra.Command {
 
 func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 	if err := core.ValidateProfileName(newName); err != nil {
-		return output.ErrValidation("%v", err)
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%v", err).WithCause(err)
 	}
 
 	multi, err := core.LoadOrNotConfigured()
@@ -40,7 +41,7 @@ func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 
 	idx := multi.FindAppIndex(oldName)
 	if idx < 0 {
-		return output.ErrValidation("profile %q not found, available profiles: %s", oldName, strings.Join(multi.ProfileNames(), ", "))
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "profile %q not found, available profiles: %s", oldName, strings.Join(multi.ProfileNames(), ", "))
 	}
 
 	// Check new name uniqueness across other profiles, allowing renames to this
@@ -50,7 +51,8 @@ func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 			continue
 		}
 		if multi.Apps[i].Name == newName || multi.Apps[i].AppId == newName {
-			return output.ErrValidation("profile %q already exists", newName)
+			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "profile %q already exists", newName).
+				WithHint("choose a different name")
 		}
 	}
 
@@ -66,7 +68,7 @@ func profileRenameRun(f *cmdutil.Factory, oldName, newName string) error {
 	}
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
+		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 	}
 
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Profile renamed: %q -> %q", oldProfileName, newName))

cmd/profile/use.go

@@ -9,6 +9,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
@@ -40,14 +41,15 @@ func profileUseRun(f *cmdutil.Factory, name string) error {
 	// Handle "-" for toggle-back
 	if name == "-" {
 		if multi.PreviousApp == "" {
-			return output.ErrValidation("no previous profile to switch back to")
+			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "no previous profile to switch back to").
+				WithHint("switch to a profile by name first: lark-cli profile use <name>")
 		}
 		name = multi.PreviousApp
 	}
 
 	app := multi.FindApp(name)
 	if app == nil {
-		return output.ErrValidation("profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "profile %q not found, available profiles: %s", name, strings.Join(multi.ProfileNames(), ", "))
 	}
 
 	targetName := app.ProfileName()
@@ -66,7 +68,7 @@ func profileUseRun(f *cmdutil.Factory, name string) error {
 	multi.CurrentApp = targetName
 
 	if err := core.SaveMultiAppConfig(multi); err != nil {
-		return output.Errorf(output.ExitInternal, "internal", "failed to save config: %v", err)
+		return errs.NewInternalError(errs.SubtypeStorage, "failed to save config: %v", err).WithCause(err)
 	}
 
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Switched to profile %q (%s, %s)", targetName, app.AppId, app.Brand))

cmd/prune.go

@@ -9,10 +9,10 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
-	"github.com/larksuite/cli/internal/output"
 )
 
 // pruneForStrictMode removes commands incompatible with the active strict mode.
@@ -65,10 +65,10 @@ func strictModeStubFrom(child *cobra.Command, mode core.StrictMode) *cobra.Comma
 	//     pick auth's instead of our denial. A leaf-level no-op makes
 	//     cobra stop here and proceed to the wrapped RunE.
 	//
-	// strict-mode keeps its short Message + independent Hint and
-	// composes the shared detail.* / wrapped-CommandDeniedError shape
-	// by hand; BuildDenialError would override Message with the
-	// CommandDeniedError.Error() long form.
+	// strict-mode keeps its short Message + independent Hint and wraps
+	// the CommandDeniedError as the Cause by hand; BuildDenialError
+	// would override Message with the CommandDeniedError.Error() long
+	// form.
 	stubMessage := fmt.Sprintf(
 		"strict mode is %q, only %s-identity commands are available",
 		mode, mode.ForcedIdentity())
@@ -105,20 +105,9 @@ func strictModeStubFrom(child *cobra.Command, mode core.StrictMode) *cobra.Comma
 		},
 		RunE: func(c *cobra.Command, _ []string) error {
 			cd := cmdpolicy.CommandDeniedFromDenial(cmdpolicy.CanonicalPath(c), denial)
-			// Legacy *output.ExitError producer: this literal predates the
-			// typed error contract introduced by errs/. New denial sites MUST
-			// NOT construct *output.ExitError directly — they should return a
-			// typed *errs.XxxError once the cmdpolicy framework migrates.
-			return &output.ExitError{
-				Code: output.ExitValidation,
-				Detail: &output.ErrDetail{
-					Type:    "command_denied",
-					Message: stubMessage,
-					Hint:    stubHint,
-					Detail:  cmdpolicy.DenialDetailMap(cd),
-				},
-				Err: cd,
-			}
+			return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", stubMessage).
+				WithHint("denied by %s policy (reason_code %s); %s", cd.Layer, cd.ReasonCode, stubHint).
+				WithCause(cd)
 		},
 	}
 }

cmd/prune_test.go

@@ -8,6 +8,7 @@ import (
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -247,9 +248,12 @@ func TestStrictModeStub_BypassesArgsValidator(t *testing.T) {
 	}
 }
 
-// Pins the strict-mode envelope shape: structured detail.* / wrapped
-// CommandDeniedError for external agents, AND the historical short
-// Message + independent Hint for existing consumers.
+// Pins the strict-mode typed envelope: a failed_precondition
+// *errs.ValidationError (exit 2) carrying the short historical Message,
+// a Hint that still surfaces the policy layer + reason code (the
+// safety-critical recovery info that lived in the legacy detail map),
+// and the wrapped *platform.CommandDeniedError so external agents can
+// still inspect the structured denial taxonomy via errors.As.
 func TestStrictModeStub_StructuredEnvelope(t *testing.T) {
 	root := newTestTree()
 	pruneForStrictMode(root, core.StrictModeBot)
@@ -262,30 +266,33 @@ func TestStrictModeStub_StructuredEnvelope(t *testing.T) {
 		t.Fatalf("strict-mode stub RunE should return error")
 	}
 
-	var ee *output.ExitError
-	if !errors.As(err, &ee) {
-		t.Fatalf("err is not *output.ExitError: %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("err is not *errs.ValidationError: %T", err)
 	}
-	if ee.Detail == nil {
-		t.Fatalf("ExitError.Detail is nil; envelope writer cannot emit JSON")
+	if verr.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want failed_precondition", verr.Subtype)
 	}
-	if ee.Detail.Type != "command_denied" {
-		t.Errorf("Detail.Type = %q, want command_denied", ee.Detail.Type)
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	dm, ok := ee.Detail.Detail.(map[string]any)
-	if !ok {
-		t.Fatalf("Detail.Detail = %T, want map[string]any", ee.Detail.Detail)
+	// Short historical Message is preserved verbatim.
+	if verr.Message != `strict mode is "bot", only bot-identity commands are available` {
+		t.Errorf("Message = %q, want short historical form", verr.Message)
 	}
-	if got, _ := dm["layer"].(string); got != cmdpolicy.LayerStrictMode {
-		t.Errorf("Detail.Detail[layer] = %q, want %q", got, cmdpolicy.LayerStrictMode)
+	// The denial layer + reason code remain user-readable in the hint, and
+	// the historical switch-policy guidance is still appended.
+	if !strings.Contains(verr.Hint, cmdpolicy.LayerStrictMode) {
+		t.Errorf("Hint = %q, want substring %q (policy layer)", verr.Hint, cmdpolicy.LayerStrictMode)
 	}
-	if got, _ := dm["reason_code"].(string); got != "identity_not_supported" {
-		t.Errorf("Detail.Detail[reason_code] = %q, want identity_not_supported", got)
+	if !strings.Contains(verr.Hint, "identity_not_supported") {
+		t.Errorf("Hint = %q, want substring identity_not_supported (reason code)", verr.Hint)
 	}
-	if got, _ := dm["policy_source"].(string); got != "strict-mode" {
-		t.Errorf("Detail.Detail[policy_source] = %q, want strict-mode", got)
+	if !strings.Contains(verr.Hint, "if the user explicitly wants to switch policy") {
+		t.Errorf("Hint = %q, want historical switch-policy guidance", verr.Hint)
 	}
 
+	// The structured denial taxonomy survives on the wrapped cause.
 	var cd *platform.CommandDeniedError
 	if !errors.As(err, &cd) {
 		t.Fatalf("err does not unwrap to *platform.CommandDeniedError")
@@ -296,15 +303,12 @@ func TestStrictModeStub_StructuredEnvelope(t *testing.T) {
 	if cd.ReasonCode != "identity_not_supported" {
 		t.Errorf("CommandDeniedError.ReasonCode = %q, want identity_not_supported", cd.ReasonCode)
 	}
+	if cd.PolicySource != "strict-mode" {
+		t.Errorf("CommandDeniedError.PolicySource = %q, want strict-mode", cd.PolicySource)
+	}
 	if !strings.Contains(cd.Reason, `strict mode is "bot"`) {
 		t.Errorf("CommandDeniedError.Reason = %q, want substring 'strict mode is \"bot\"'", cd.Reason)
 	}
-	if ee.Detail.Message != `strict mode is "bot", only bot-identity commands are available` {
-		t.Errorf("Detail.Message = %q, want short historical form", ee.Detail.Message)
-	}
-	if !strings.HasPrefix(ee.Detail.Hint, "if the user explicitly wants to switch policy") {
-		t.Errorf("Detail.Hint = %q, want historical hint", ee.Detail.Hint)
-	}
 }
 
 // strictModeStubFrom must write the denial annotations so the hook

cmd/root.go

@@ -13,17 +13,12 @@ import (
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
-	internalauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
-	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/deprecation"
-	"github.com/larksuite/cli/internal/errclass"
-	"github.com/larksuite/cli/internal/errcompat"
 	"github.com/larksuite/cli/internal/hook"
 	"github.com/larksuite/cli/internal/output"
-	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/internal/skillscheck"
 	"github.com/larksuite/cli/internal/suggest"
 	"github.com/larksuite/cli/internal/update"
@@ -36,7 +31,7 @@ const rootLong = `lark-cli — Lark/Feishu CLI tool.
 USAGE:
     lark-cli <command> [subcommand] [method] [options]
     lark-cli api <method> <path> [--params <json>] [--data <json>]
-    lark-cli schema <service.resource.method> [--format pretty]
+    lark-cli schema <service.resource.method>
 
 EXAMPLES:
     # View upcoming events
@@ -217,56 +212,37 @@ func configureFlagCompletions(args []string) {
 // and returns the process exit code.
 //
 // Dispatch order:
-//  1. Legacy shapes (*core.ConfigError, *internalauth.NeedAuthorizationError)
-//     are promoted via errcompat to their typed errs/ counterparts, with the
-//     original preserved in the Cause chain.
-//  2. Typed errors from errs/ (e.g. *errs.PermissionError, *errs.APIError,
-//     *errs.SecurityPolicyError, *errs.AuthenticationError): render via the
-//     typed envelope writer, which lifts extension fields (missing_scopes,
-//     console_url, challenge_url, ...) to the top level. Routed by
-//     errs.CategoryOf via ExitCodeOf.
-//  3. Legacy *output.ExitError: asExitError adapts it to the legacy
-//     envelope, written via WriteErrorEnvelope.
-//  4. Cobra errors (required flags, unknown commands, etc.): plain text.
+//  1. Typed errors from errs/ (e.g. *errs.PermissionError, *errs.APIError,
+//     *errs.SecurityPolicyError, *errs.AuthenticationError, *errs.ConfigError):
+//     render via the typed envelope writer, which lifts extension fields
+//     (missing_scopes, console_url, challenge_url, ...) to the top level.
+//     Routed by errs.CategoryOf via ExitCodeOf. Auth and config errors are
+//     constructed typed at their origin (internal/auth, internal/core), so the
+//     dispatcher no longer promotes any legacy shape here.
+//  2. PartialFailure / BareError signals: the result envelope is already on
+//     stdout; honor the exit code and write nothing to stderr.
+//  3. Residual cobra usage errors (missing required flag, unknown command,
+//     argument validation): typed as an invalid_argument envelope (exit 2),
+//     matching the explicit flag/subcommand guards. Flag parse errors are
+//     already typed upstream by the root FlagErrorFunc.
 func handleRootError(f *cmdutil.Factory, err error) int {
 	errOut := f.IOStreams.ErrOut
 
-	// Promote legacy error shapes into typed errs/ before envelope marshal.
-	// NeedAuthorizationError check is first because it is the more specific
-	// shape; *core.ConfigError check follows. errors.As preserves the original
-	// in the Cause chain, so external errors.As(&core.ConfigError{}) consumers
-	// (cmd/auth/list.go, cmd/doctor/doctor.go, ...) still match.
-	//
-	// Outer-typed short-circuit: if err is already a typed *errs.* error,
-	// skip PromoteXxxError so the producer's Subtype / Hint / extension
-	// fields are not overwritten by a coarser promoted shape derived from a
-	// legacy error buried in its Cause chain. Promotion is only for legacy
-	// untyped entry points.
-	if !isOuterTypedError(err) {
-		var needAuthErr *internalauth.NeedAuthorizationError
-		if errors.As(err, &needAuthErr) {
-			err = errcompat.PromoteAuthError(needAuthErr)
-		} else {
-			var cfgErr *core.ConfigError
-			if errors.As(err, &cfgErr) {
-				err = errcompat.PromoteConfigError(cfgErr)
-			}
-		}
-	}
-
 	// When the typed error is a need_user_authorization signal, fold in the
 	// current command's declared scopes as a Hint so the user/AI sees the
 	// concrete scope(s) to re-auth with. The hint is computed on the fly from
 	// local shortcut/service metadata — it never depends on server state.
-	applyNeedAuthorizationHint(f, err)
+	if !errs.IsRaw(err) {
+		applyNeedAuthorizationHint(f, err)
+	}
 
 	// Staged dispatch: capture the typed exit code BEFORE attempting the
 	// envelope write. WriteTypedErrorEnvelope is best-effort on the wire
 	// (partial-write still returns true) so the exit code we read here is
 	// preserved even if stderr is torn — torn stderr must not downgrade
-	// typed exits 3/4/6/10 to the legacy "Error:" path with exit 1.
+	// typed exits 3/4/6/10 to the plain "Error:" path with exit 1.
 	// WriteTypedErrorEnvelope still returns false when err carries no
-	// Problem; in that case we fall through to the legacy bridge below.
+	// Problem; in that case we fall through to the signal / plain-text paths.
 	typedExit := output.ExitCodeOf(err)
 	if output.WriteTypedErrorEnvelope(errOut, err, string(f.ResolvedIdentity)) {
 		return typedExit
@@ -279,58 +255,63 @@ func handleRootError(f *cmdutil.Factory, err error) int {
 		return pfErr.Code
 	}
 
-	if exitErr := asExitError(err); exitErr != nil {
-		if !exitErr.Raw {
-			// Raw errors (e.g. from `api` command via output.MarkRaw)
-			// preserve the original API error detail; skip enrichment
-			// which would clear it.
-			enrichMissingScopeError(f, exitErr)
-			enrichPermissionError(f, exitErr)
+	// Silent-exit signal (e.g. `auth check` predicate, or `update --json`):
+	// stdout already carries the result; honor the requested exit code and
+	// write nothing to stderr.
+	var bareErr *output.BareError
+	if errors.As(err, &bareErr) {
+		return bareErr.Code
+	}
+
+	// Errors reaching here are untyped: every RunE returns a typed errs.* error
+	// and flag-parse errors are typed by the root FlagErrorFunc. The remainder
+	// is either a cobra usage mistake (missing required flag, unknown command,
+	// wrong arg count), which cobra surfaces as a plain error identified by its
+	// stable text — the same external contract unknownFlagName relies on — or an
+	// untyped error that leaked past the typed boundary. Classify the former as
+	// invalid_argument (exit 2, like the explicit guards); treat the latter as an
+	// internal fault (exit 5) rather than blaming the user's input. The message
+	// is preserved either way, and the typed envelope still carries any pending
+	// deprecation notice.
+	var fallback error
+	if isCobraUsageError(err) {
+		fallback = errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err.Error())
+	} else {
+		fallback = errs.NewInternalError(errs.SubtypeUnknown, "%s", err.Error()).WithCause(err)
+	}
+	output.WriteTypedErrorEnvelope(errOut, fallback, string(f.ResolvedIdentity))
+	return output.ExitCodeOf(fallback)
+}
+
+// cobraUsageErrorMarkers are the stable error-text fragments cobra / pflag
+// (pinned at v1.10.2) emit for usage mistakes — missing required flag, unknown
+// command / flag, wrong argument count. Cobra surfaces these as plain errors,
+// not a typed value we can match on, so the dispatcher recognizes them by text;
+// this is the same external contract unknownFlagName already depends on. A
+// residual error matching none of these has leaked the typed boundary and is
+// treated as an internal fault, not a user error.
+var cobraUsageErrorMarkers = []string{
+	"unknown command ",
+	"unknown flag: ",
+	"unknown shorthand",
+	"required flag(s) ",
+	"flag needs an argument",
+	"bad flag syntax:",
+	"no such flag ",
+	"invalid argument ",
+	"arg(s), ", // accepts / requires N arg(s), received / only received M
+}
+
+// isCobraUsageError reports whether err is a cobra / pflag usage mistake,
+// identified by the stable error text of the pinned cobra version.
+func isCobraUsageError(err error) bool {
+	msg := err.Error()
+	for _, m := range cobraUsageErrorMarkers {
+		if strings.Contains(msg, m) {
+			return true
 		}
-		output.WriteErrorEnvelope(errOut, exitErr, string(f.ResolvedIdentity))
-		return exitErr.Code
 	}
-
-	// A backward-compat alias records its deprecation notice in PreRunE, which
-	// runs before cobra's required-flag validation — but a missing required flag
-	// fails before RunE and lands here, where the bare "Error:" line would drop
-	// the notice. When a deprecation is pending, route through the structured
-	// envelope so the migration hint still reaches the caller; all other errors
-	// keep the existing plain output.
-	if deprecation.GetPending() != nil {
-		output.WriteErrorEnvelope(errOut, &output.ExitError{
-			Code:   1,
-			Detail: &output.ErrDetail{Type: "validation", Message: err.Error()},
-		}, string(f.ResolvedIdentity))
-		return 1
-	}
-	fmt.Fprintln(errOut, "Error:", err)
-	return 1
-}
-
-// isOuterTypedError returns true if err is a typed *errs.* error AT THE
-// TOP OF THE CHAIN (not buried inside Unwrap). Used by handleRootError
-// to gate PromoteXxxError so a producer's outer typed envelope is never
-// overwritten by a coarser shape derived from its legacy Cause.
-func isOuterTypedError(err error) bool {
-	_, ok := err.(errs.TypedError)
-	return ok
-}
-
-// asExitError converts known structured error types to *output.ExitError.
-// Returns nil for unrecognized errors (e.g. cobra flag errors).
-//
-// Deprecated: legacy *output.ExitError bridge.
-func asExitError(err error) *output.ExitError {
-	var cfgErr *core.ConfigError
-	if errors.As(err, &cfgErr) {
-		return output.ErrWithHint(cfgErr.Code, cfgErr.Type, cfgErr.Message, cfgErr.Hint)
-	}
-	var exitErr *output.ExitError
-	if errors.As(err, &exitErr) {
-		return exitErr
-	}
-	return nil
+	return false
 }
 
 // installUnknownSubcommandGuard replaces cobra's silent help fallback on
@@ -361,13 +342,10 @@ func installUnknownSubcommandGuard(cmd *cobra.Command) {
 	}
 }
 
-// Deprecated: unknownSubcommandRunE produces a legacy *output.ExitError that
-// predates the typed error contract introduced by errs/. New code MUST NOT
-// add producers of this shape — unknown-subcommand signals should move to
-// a typed *errs.ValidationError (or a dedicated typed error) carrying the
-// agent-protocol metadata as typed extension fields. This helper is retained
-// only while existing dispatch sites are migrated; it will be removed once
-// they have moved to the typed surface.
+// unknownSubcommandRunE replaces cobra's silent help fallback on group commands
+// with a typed *errs.ValidationError: a flag that belongs to a missing
+// subcommand, a misplaced subcommand-only flag, or an unknown subcommand name
+// each fail structured (exit 2) instead of degrading to help + exit 0.
 func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 	if len(args) == 0 {
 		// A bare group (e.g. `sheets`), or one carrying only group-valid flags
@@ -383,28 +361,13 @@ func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 			return cmd.Help()
 		}
 		if unknown := unknownFlagTokens(cmd, rawInvocationArgs); len(unknown) > 0 {
-			return &output.ExitError{
-				Code: output.ExitValidation,
-				Detail: &output.ErrDetail{
-					Type:    "unknown_flag",
-					Message: fmt.Sprintf("unknown flag %s before a subcommand for %q", strings.Join(unknown, ", "), cmd.CommandPath()),
-					Hint:    fmt.Sprintf("flags belong to a subcommand; run `%s --help` to list subcommands and their flags", cmd.CommandPath()),
-					Detail: map[string]any{
-						// Keep the same detail keys as flagDidYouMean's unknown_flag
-						// so a consumer keyed on Type can read a stable shape. The
-						// subcommand isn't resolved here, so suggestions/valid_flags
-						// have no meaningful universe to draw from — emit empty
-						// rather than the group's own (misleading) flags. unknown is
-						// the back-compat singular field; unknown_flags carries the
-						// full list when more than one flag was supplied.
-						"unknown":       strings.Join(unknown, ", "),
-						"unknown_flags": unknown,
-						"command_path":  cmd.CommandPath(),
-						"suggestions":   []string{},
-						"valid_flags":   []string{},
-					},
-				},
+			verr := errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"unknown flag %s before a subcommand for %q", strings.Join(unknown, ", "), cmd.CommandPath()).
+				WithHint("flags belong to a subcommand; run `%s --help` to list subcommands and their flags", cmd.CommandPath())
+			for _, flag := range unknown {
+				verr.WithParams(errs.InvalidParam{Name: flag, Reason: "unknown flag before a subcommand"})
 			}
+			return verr
 		}
 		// The remaining flags are all defined somewhere in the tree. Those valid
 		// on the group itself or inherited (e.g. the global --profile) do not
@@ -416,19 +379,13 @@ func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 		if len(misplaced) == 0 {
 			return cmd.Help()
 		}
-		return &output.ExitError{
-			Code: output.ExitValidation,
-			Detail: &output.ErrDetail{
-				Type:    "missing_subcommand",
-				Message: fmt.Sprintf("missing subcommand for %q; flag %s belongs to a subcommand, not the group", cmd.CommandPath(), strings.Join(misplaced, ", ")),
-				Hint:    fmt.Sprintf("run `%s --help` to list subcommands and their flags", cmd.CommandPath()),
-				Detail: map[string]any{
-					"command_path": cmd.CommandPath(),
-					"flags":        misplaced,
-					"suggestions":  []string{},
-				},
-			},
+		verr := errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"missing subcommand for %q; flag %s belongs to a subcommand, not the group", cmd.CommandPath(), strings.Join(misplaced, ", ")).
+			WithHint("run `%s --help` to list subcommands and their flags", cmd.CommandPath())
+		for _, flag := range misplaced {
+			verr.WithParams(errs.InvalidParam{Name: flag, Reason: "flag belongs to a subcommand, not the group"})
 		}
+		return verr
 	}
 	unknown := args[0]
 	available, deprecated := availableSubcommandNames(cmd)
@@ -442,27 +399,12 @@ func unknownSubcommandRunE(cmd *cobra.Command, args []string) error {
 		hint = fmt.Sprintf("did you mean one of: %s? (run `%s --help` for the full list)",
 			strings.Join(suggestions, ", "), cmd.CommandPath())
 	}
-	detail := map[string]any{
-		"unknown":      unknown,
-		"command_path": cmd.CommandPath(),
-		"suggestions":  suggestions,
-		"available":    available,
-	}
-	// Only services with backward-compat aliases (currently sheets) carry a
-	// deprecated bucket; omit the key elsewhere so every other service's
-	// envelope is unchanged.
-	if len(deprecated) > 0 {
-		detail["deprecated"] = deprecated
-	}
-	return &output.ExitError{
-		Code: output.ExitValidation,
-		Detail: &output.ErrDetail{
-			Type:    "unknown_subcommand",
-			Message: msg,
-			Hint:    hint,
-			Detail:  detail,
-		},
-	}
+	// Record the offending subcommand and its ranked candidates as a param with
+	// machine-readable Suggestions so an agent can retry without parsing the
+	// hint; the hint carries the same candidates as prose.
+	return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", msg).
+		WithParams(errs.InvalidParam{Name: unknown, Reason: "unknown subcommand", Suggestions: suggestions}).
+		WithHint("%s", hint)
 }
 
 // flagTokensInArgs returns the flag-like tokens (-x, --foo, --foo=bar) in
@@ -588,47 +530,34 @@ func availableSubcommandNames(cmd *cobra.Command) (available, deprecated []strin
 }
 
 // flagDidYouMean is the root FlagErrorFunc (inherited by all subcommands). It
-// converts cobra's flag-parse errors into the structured ErrorEnvelope: an
-// unknown flag gets a focused "did you mean" hint plus the full valid-flag list
-// in detail (so agents recover even when the typo is semantic, e.g. --query vs
-// --find, where edit distance alone finds nothing). Other flag errors stay
-// structured but generic.
+// converts cobra's flag-parse errors into a typed validation envelope: an
+// unknown flag gets a focused "did you mean" hint (so agents recover even when
+// the typo is semantic, e.g. --query vs --find, where edit distance alone finds
+// nothing) and the offending flag in `params`. Other flag errors stay typed
+// but generic.
 func flagDidYouMean(c *cobra.Command, ferr error) error {
 	name, isUnknown := unknownFlagName(ferr)
 	if !isUnknown {
-		return &output.ExitError{
-			Code: output.ExitValidation,
-			Detail: &output.ErrDetail{
-				Type:    "flag_error",
-				Message: ferr.Error(),
-				Hint:    fmt.Sprintf("run `%s --help` for valid flags", c.CommandPath()),
-			},
-		}
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", ferr.Error()).
+			WithHint("run `%s --help` for valid flags", c.CommandPath())
 	}
 	valid := visibleFlagNames(c)
 	suggestions := suggest.Closest(name, valid, 3)
+	for i := range suggestions {
+		suggestions[i] = "--" + suggestions[i]
+	}
 	hint := fmt.Sprintf("run `%s --help` to see valid flags", c.CommandPath())
 	if len(suggestions) > 0 {
-		for i := range suggestions {
-			suggestions[i] = "--" + suggestions[i]
-		}
 		hint = fmt.Sprintf("did you mean %s? (run `%s --help` for all flags)",
 			strings.Join(suggestions, ", "), c.CommandPath())
 	}
-	return &output.ExitError{
-		Code: output.ExitValidation,
-		Detail: &output.ErrDetail{
-			Type:    "unknown_flag",
-			Message: fmt.Sprintf("unknown flag %q for %q", "--"+name, c.CommandPath()),
-			Hint:    hint,
-			Detail: map[string]any{
-				"unknown":      "--" + name,
-				"command_path": c.CommandPath(),
-				"suggestions":  suggestions,
-				"valid_flags":  valid,
-			},
-		},
-	}
+	// The ranked candidates ride on the param as machine-readable Suggestions so
+	// an agent can retry without parsing the hint; the hint carries the same
+	// candidates as prose. The full valid-flag list stays recoverable via --help.
+	return errs.NewValidationError(errs.SubtypeInvalidArgument,
+		"unknown flag %q for %q", "--"+name, c.CommandPath()).
+		WithParams(errs.InvalidParam{Name: "--" + name, Reason: "unknown flag", Suggestions: suggestions}).
+		WithHint("%s", hint)
 }
 
 // unknownFlagName extracts the offending long-flag name from cobra's flag-parse
@@ -698,56 +627,3 @@ func installTipsHelpFunc(root *cobra.Command) {
 		}
 	})
 }
-
-// enrichPermissionError rewrites the legacy *output.ExitError envelope so its
-// Message + Hint match the per-subtype canonical text produced by the typed
-// dispatcher path (errclass.CanonicalPermissionMessage / errclass.PermissionHint).
-// This guarantees a caller observing the wire envelope cannot tell whether
-// the error reached the dispatcher via the legacy *ExitError bridge or via
-// the typed *errs.PermissionError fast path.
-//
-// Deprecated: legacy *output.ExitError enrichment; typed PermissionError
-// values produced by errclass.BuildAPIError already carry MissingScopes +
-// ConsoleURL directly.
-func enrichPermissionError(f *cmdutil.Factory, exitErr *output.ExitError) {
-	if exitErr.Detail == nil {
-		return
-	}
-	// Only the legacy permission-class envelope types route here. "app_status"
-	// covers 99991662 (app_disabled) / 99991673 (app_unavailable); "permission"
-	// covers the four scope-class codes (99991672 / 99991676 / 99991679 / 230027).
-	if exitErr.Detail.Type != "permission" && exitErr.Detail.Type != "app_status" {
-		return
-	}
-
-	larkCode := exitErr.Detail.Code
-	meta, ok := errclass.LookupCodeMeta(larkCode)
-	if !ok || meta.Category != errs.CategoryAuthorization {
-		return
-	}
-
-	// Extract required scopes from API error detail (shared helper). May be
-	// empty for app-status codes — canonical message + hint still apply.
-	missing := registry.ExtractRequiredScopes(exitErr.Detail.Detail)
-
-	cfg, err := f.Config()
-	if err != nil {
-		return
-	}
-
-	// Reuse the same console URL builder as the typed path so both wire
-	// envelopes carry identical console_url values for the same input.
-	consoleURL := errclass.ConsoleURL(string(cfg.Brand), cfg.AppID, missing)
-
-	// Clear raw API detail — useful info is now in message/hint/console_url.
-	exitErr.Detail.Detail = nil
-
-	identity := string(f.ResolvedIdentity)
-	if identity == "" {
-		identity = "user"
-	}
-
-	exitErr.Detail.Message = errclass.CanonicalPermissionMessage(meta.Subtype, cfg.AppID, missing, exitErr.Detail.Message)
-	exitErr.Detail.Hint = errclass.PermissionHint(missing, identity, meta.Subtype, consoleURL)
-	exitErr.Detail.ConsoleURL = consoleURL
-}

cmd/root_integration_test.go

@@ -8,7 +8,6 @@ import (
 	"context"
 	"encoding/json"
 	"os"
-	"reflect"
 	"strings"
 	"testing"
 
@@ -27,12 +26,12 @@ import (
 	"github.com/spf13/cobra"
 )
 
-// Canonical strict-mode envelope strings shared across fixtures
-// (reflect.DeepEqual pins them; keep in sync with strictModeStubFrom).
+// Canonical strict-mode envelope messages shared across fixtures. The
+// switch-policy hint text is asserted by substring in
+// assertStrictModeDenialEnvelope.
 const (
 	strictModeBotMessage  = `strict mode is "bot", only bot-identity commands are available`
 	strictModeUserMessage = `strict mode is "user", only user-identity commands are available`
-	strictModeHint        = "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)"
 )
 
 // buildIntegrationRootCmd creates a root command with api, service, and shortcut
@@ -63,37 +62,46 @@ func executeRootIntegration(t *testing.T, f *cmdutil.Factory, rootCmd *cobra.Com
 	return 0
 }
 
-// parseEnvelope parses stderr bytes into an ErrorEnvelope.
-func parseEnvelope(t *testing.T, stderr *bytes.Buffer) output.ErrorEnvelope {
+// typedErrorEnvelope mirrors the typed wire shape produced by
+// WriteTypedErrorEnvelope: the inner error marshals an errs.Problem
+// directly, so "type" is the category, "subtype" is top-level, and there
+// is no nested "detail" object. Recovery info (policy source, reason
+// code, suggestions) is folded into "hint".
+type typedErrorEnvelope struct {
+	OK       bool   `json:"ok"`
+	Identity string `json:"identity,omitempty"`
+	Error    struct {
+		Type    string `json:"type"`
+		Subtype string `json:"subtype"`
+		Message string `json:"message"`
+		Hint    string `json:"hint"`
+		Param   string `json:"param,omitempty"`
+	} `json:"error"`
+}
+
+// parseTypedEnvelope decodes stderr as the typed envelope and fails if the
+// legacy nested "detail" object is present (the migration removed it).
+func parseTypedEnvelope(t *testing.T, stderr *bytes.Buffer) typedErrorEnvelope {
 	t.Helper()
 	if stderr.Len() == 0 {
 		t.Fatal("expected non-empty stderr, got empty")
 	}
-	var env output.ErrorEnvelope
+	var raw map[string]any
+	if err := json.Unmarshal(stderr.Bytes(), &raw); err != nil {
+		t.Fatalf("failed to parse stderr as JSON: %v\nstderr: %s", err, stderr.String())
+	}
+	if errObj, ok := raw["error"].(map[string]any); ok {
+		if _, hasDetail := errObj["detail"]; hasDetail {
+			t.Errorf("typed envelope must not carry a nested 'detail' object, got: %s", stderr.String())
+		}
+	}
+	var env typedErrorEnvelope
 	if err := json.Unmarshal(stderr.Bytes(), &env); err != nil {
-		t.Fatalf("failed to parse stderr as ErrorEnvelope: %v\nstderr: %s", err, stderr.String())
+		t.Fatalf("failed to parse stderr as typed envelope: %v\nstderr: %s", err, stderr.String())
 	}
 	return env
 }
 
-// assertEnvelope verifies exit code, stdout is empty, and stderr matches the
-// expected ErrorEnvelope exactly via reflect.DeepEqual.
-func assertEnvelope(t *testing.T, code int, wantCode int, stdout *bytes.Buffer, stderr *bytes.Buffer, want output.ErrorEnvelope) {
-	t.Helper()
-	if code != wantCode {
-		t.Errorf("exit code: got %d, want %d", code, wantCode)
-	}
-	if stdout.Len() != 0 {
-		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
-	}
-	got := parseEnvelope(t, stderr)
-	if !reflect.DeepEqual(got, want) {
-		gotJSON, _ := json.MarshalIndent(got, "", "  ")
-		wantJSON, _ := json.MarshalIndent(want, "", "  ")
-		t.Errorf("stderr envelope mismatch:\ngot:\n%s\nwant:\n%s", gotJSON, wantJSON)
-	}
-}
-
 func buildStrictModeIntegrationRootCmd(t *testing.T, f *cmdutil.Factory) *cobra.Command {
 	t.Helper()
 	rootCmd := &cobra.Command{Use: "lark-cli"}
@@ -205,23 +213,71 @@ func TestIntegration_StrictModeBot_ProfileOverride_DirectAuthLoginReturnsEnvelop
 
 	// auth login is user-only, so it gets pruned in strict-mode-bot and the
 	// stub error fires (not login.go's inline check, which is shadowed by
-	// pruning).
-	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
-		OK: false,
-		Error: &output.ErrDetail{
-			Type:    "command_denied",
-			Message: strictModeBotMessage,
-			Hint:    strictModeHint,
-			Detail: map[string]any{
-				"path":          "auth/login",
-				"layer":         "strict_mode",
-				"policy_source": "strict-mode",
-				"rule_name":     "",
-				"reason_code":   "identity_not_supported",
-				"reason":        strictModeBotMessage,
-			},
-		},
-	})
+	// pruning). The typed envelope is a failed_precondition validation
+	// error (exit 2); the strict-mode layer + reason code are folded into
+	// the hint.
+	if code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	env := parseTypedEnvelope(t, stderr)
+	assertStrictModeDenialEnvelope(t, env, strictModeBotMessage)
+}
+
+// assertStrictModeDenialEnvelope pins the shared strict-mode denial shape:
+// a validation/failed_precondition envelope whose message is the short
+// historical strict-mode line and whose hint still names the strict_mode
+// layer + identity_not_supported reason code (the safety-critical recovery
+// info), plus the historical switch-policy guidance.
+func assertStrictModeDenialEnvelope(t *testing.T, env typedErrorEnvelope, wantMessage string) {
+	t.Helper()
+	if env.OK {
+		t.Errorf("envelope ok = true, want false")
+	}
+	if env.Error.Type != "validation" {
+		t.Errorf("error.type = %q, want validation", env.Error.Type)
+	}
+	if env.Error.Subtype != "failed_precondition" {
+		t.Errorf("error.subtype = %q, want failed_precondition", env.Error.Subtype)
+	}
+	if env.Error.Message != wantMessage {
+		t.Errorf("error.message = %q, want %q", env.Error.Message, wantMessage)
+	}
+	if !strings.Contains(env.Error.Hint, "strict_mode") {
+		t.Errorf("error.hint = %q, want substring strict_mode (policy layer)", env.Error.Hint)
+	}
+	if !strings.Contains(env.Error.Hint, "identity_not_supported") {
+		t.Errorf("error.hint = %q, want substring identity_not_supported (reason code)", env.Error.Hint)
+	}
+	if !strings.Contains(env.Error.Hint, "config strict-mode --help") {
+		t.Errorf("error.hint = %q, want historical switch-policy guidance", env.Error.Hint)
+	}
+}
+
+// assertCheckStrictModeEnvelope pins the typed envelope produced by
+// cmdutil.Factory.CheckStrictMode (the identity-guard path for explicit
+// --as on shortcuts / service methods / api): a *errs.ValidationError with
+// subtype invalid_argument, the canonical strict-mode message, and the
+// switch-policy hint.
+func assertCheckStrictModeEnvelope(t *testing.T, env typedErrorEnvelope, wantMessage string) {
+	t.Helper()
+	if env.OK {
+		t.Errorf("envelope ok = true, want false")
+	}
+	if env.Error.Type != "validation" {
+		t.Errorf("error.type = %q, want validation", env.Error.Type)
+	}
+	if env.Error.Subtype != "invalid_argument" {
+		t.Errorf("error.subtype = %q, want invalid_argument", env.Error.Subtype)
+	}
+	if env.Error.Message != wantMessage {
+		t.Errorf("error.message = %q, want %q", env.Error.Message, wantMessage)
+	}
+	if !strings.Contains(env.Error.Hint, "config strict-mode --help") {
+		t.Errorf("error.hint = %q, want switch-policy guidance", env.Error.Hint)
+	}
 }
 
 func TestIntegration_StrictModeBot_ProfileOverride_DirectUserShortcutReturnsEnvelope(t *testing.T) {
@@ -232,22 +288,14 @@ func TestIntegration_StrictModeBot_ProfileOverride_DirectUserShortcutReturnsEnve
 		"im", "+messages-search", "--chat-id", "oc_xxx", "--query", "hello",
 	})
 
-	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
-		OK: false,
-		Error: &output.ErrDetail{
-			Type:    "command_denied",
-			Message: strictModeBotMessage,
-			Hint:    strictModeHint,
-			Detail: map[string]any{
-				"path":          "im/+messages-search",
-				"layer":         "strict_mode",
-				"policy_source": "strict-mode",
-				"rule_name":     "",
-				"reason_code":   "identity_not_supported",
-				"reason":        strictModeBotMessage,
-			},
-		},
-	})
+	if code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	env := parseTypedEnvelope(t, stderr)
+	assertStrictModeDenialEnvelope(t, env, strictModeBotMessage)
 }
 
 func TestIntegration_StrictModeUser_ProfileOverride_ChatCreateDryRunSucceeds(t *testing.T) {
@@ -277,15 +325,14 @@ func TestIntegration_StrictModeUser_ProfileOverride_ShortcutExplicitBotReturnsEn
 		"im", "+chat-create", "--name", "probe", "--as", "bot", "--dry-run",
 	})
 
-	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
-		OK:       false,
-		Identity: "bot",
-		Error: &output.ErrDetail{
-			Type:    "validation",
-			Message: `strict mode is "user", only user-identity commands are available`,
-			Hint:    "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)",
-		},
-	})
+	if code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	env := parseTypedEnvelope(t, stderr)
+	assertCheckStrictModeEnvelope(t, env, strictModeUserMessage)
 }
 
 func TestIntegration_StrictModeBot_ProfileOverride_ServiceExplicitUserReturnsEnvelope(t *testing.T) {
@@ -296,15 +343,14 @@ func TestIntegration_StrictModeBot_ProfileOverride_ServiceExplicitUserReturnsEnv
 		"im", "chats", "get", "--params", `{"chat_id":"oc_test"}`, "--as", "user", "--dry-run",
 	})
 
-	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
-		OK:       false,
-		Identity: "user",
-		Error: &output.ErrDetail{
-			Type:    "validation",
-			Message: `strict mode is "bot", only bot-identity commands are available`,
-			Hint:    "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)",
-		},
-	})
+	if code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	env := parseTypedEnvelope(t, stderr)
+	assertCheckStrictModeEnvelope(t, env, strictModeBotMessage)
 }
 
 func TestIntegration_StrictModeUser_ProfileOverride_ServiceBotOnlyMethodReturnsEnvelope(t *testing.T) {
@@ -315,22 +361,14 @@ func TestIntegration_StrictModeUser_ProfileOverride_ServiceBotOnlyMethodReturnsE
 		"im", "images", "create", "--data", `{"image_type":"message","image":"x"}`, "--dry-run",
 	})
 
-	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
-		OK: false,
-		Error: &output.ErrDetail{
-			Type:    "command_denied",
-			Message: strictModeUserMessage,
-			Hint:    strictModeHint,
-			Detail: map[string]any{
-				"path":          "im/images/create",
-				"layer":         "strict_mode",
-				"policy_source": "strict-mode",
-				"rule_name":     "",
-				"reason_code":   "identity_not_supported",
-				"reason":        strictModeUserMessage,
-			},
-		},
-	})
+	if code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	env := parseTypedEnvelope(t, stderr)
+	assertStrictModeDenialEnvelope(t, env, strictModeUserMessage)
 }
 
 func TestIntegration_StrictModeBot_ProfileOverride_APIExplicitUserReturnsEnvelope(t *testing.T) {
@@ -341,15 +379,14 @@ func TestIntegration_StrictModeBot_ProfileOverride_APIExplicitUserReturnsEnvelop
 		"api", "--as", "user", "GET", "/open-apis/im/v1/chats/oc_test", "--dry-run",
 	})
 
-	assertEnvelope(t, code, output.ExitValidation, stdout, stderr, output.ErrorEnvelope{
-		OK:       false,
-		Identity: "user",
-		Error: &output.ErrDetail{
-			Type:    "validation",
-			Message: `strict mode is "bot", only bot-identity commands are available`,
-			Hint:    "if the user explicitly wants to switch policy, see `lark-cli config strict-mode --help` (confirm with the user before switching; switching does NOT require re-bind)",
-		},
-	})
+	if code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	env := parseTypedEnvelope(t, stderr)
+	assertCheckStrictModeEnvelope(t, env, strictModeBotMessage)
 }
 
 // --- shortcut command ---
@@ -372,16 +409,43 @@ func TestIntegration_Shortcut_BusinessError_OutputsEnvelope(t *testing.T) {
 		"im", "+messages-send", "--as", "bot", "--chat-id", "oc_xxx", "--text", "test",
 	})
 
-	// shortcut: typed error via DoAPIJSON path
-	assertEnvelope(t, code, output.ExitAPI, stdout, stderr, output.ErrorEnvelope{
-		OK:       false,
-		Identity: "bot",
-		Error: &output.ErrDetail{
-			Type:    "api",
-			Code:    230002,
-			Message: "Bot/User can NOT be out of the chat.",
-		},
-	})
+	// shortcut: typed errs.APIError via the CallAPITyped → BuildAPIError path.
+	if code != output.ExitAPI {
+		t.Errorf("exit code = %d, want %d (ExitAPI)", code, output.ExitAPI)
+	}
+	if stdout.Len() != 0 {
+		t.Errorf("expected empty stdout, got:\n%s", stdout.String())
+	}
+	if stderr.Len() == 0 {
+		t.Fatal("expected non-empty stderr, got empty")
+	}
+	var raw struct {
+		OK       bool   `json:"ok"`
+		Identity string `json:"identity"`
+		Error    struct {
+			Type    string `json:"type"`
+			Code    int    `json:"code"`
+			Message string `json:"message"`
+		} `json:"error"`
+	}
+	if err := json.Unmarshal(stderr.Bytes(), &raw); err != nil {
+		t.Fatalf("failed to parse typed envelope: %v\nstderr: %s", err, stderr.String())
+	}
+	if raw.OK {
+		t.Errorf("envelope ok = true, want false")
+	}
+	if raw.Identity != "bot" {
+		t.Errorf("identity = %q, want bot", raw.Identity)
+	}
+	if raw.Error.Type != "api" {
+		t.Errorf("error.type = %q, want api", raw.Error.Type)
+	}
+	if raw.Error.Code != 230002 {
+		t.Errorf("error.code = %d, want 230002", raw.Error.Code)
+	}
+	if raw.Error.Message != "Bot/User can NOT be out of the chat." {
+		t.Errorf("error.message = %q, want %q", raw.Error.Message, "Bot/User can NOT be out of the chat.")
+	}
 }
 
 // TestSetupNotices_ColdStart_NoNotice verifies that missing state

cmd/root_test.go

@@ -137,9 +137,6 @@ func TestIsCompletionCommand(t *testing.T) {
 	}
 }
 
-// TestPromoteConfigError_* lives with the implementation in
-// internal/errcompat/promote_test.go.
-
 // TestHandleRootError_SecurityPolicyCanonicalEnvelope verifies that
 // *errs.SecurityPolicyError flows through the canonical typed envelope
 // (output.WriteTypedErrorEnvelope) — type=policy, numeric code, subtype,
@@ -269,12 +266,11 @@ func (f *failingWriter) Write(p []byte) (int, error) {
 	return len(p), nil
 }
 
-// TestHandleRootError_DeprecatedAliasMissingFlagStructured pins issue #4: a
-// backward-compat alias that fails on a cobra-level required flag (which
-// short-circuits before RunE) still routes through the structured envelope,
-// because OnInvoke records the deprecation in PreRunE and the legacy fallback
-// switches to WriteErrorEnvelope when a deprecation is pending — so the
-// migration notice is no longer dropped on the plain "Error:" line.
+// TestHandleRootError_DeprecatedAliasMissingFlagStructured pins that a
+// backward-compat alias failing on a cobra-level required flag (which
+// short-circuits before RunE) routes through the structured envelope, so the
+// deprecation notice OnInvoke records in PreRunE is carried on the wire instead
+// of being dropped on a plain "Error:" line.
 func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	t.Cleanup(func() { deprecation.SetPending(nil) })
@@ -286,9 +282,9 @@ func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	deprecation.SetPending(&deprecation.Notice{
 		Command: "+write", Replacement: "+cells-set", Skill: "lark-sheets",
 	})
-	// The bare error shape cobra's ValidateRequiredFlags produces: neither typed
-	// nor an *output.ExitError, so it reaches the legacy fallback.
-	handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
+	// The bare error shape cobra's ValidateRequiredFlags produces: not a typed
+	// errs.* error, so it reaches the deprecation fallback.
+	exit := handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
 
 	out := errOut.String()
 	if strings.HasPrefix(strings.TrimSpace(out), "Error:") {
@@ -297,12 +293,96 @@ func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	if !strings.Contains(out, `"message"`) || !strings.Contains(out, "values") {
 		t.Errorf("expected a JSON error envelope carrying the failure message; got:\n%s", out)
 	}
+	// The envelope is typed validation, so the exit code must derive from that
+	// category (2) — the wire type and the exit code must not disagree.
+	if exit != int(output.ExitValidation) {
+		t.Errorf("exit = %d, want %d (validation envelope → category-derived exit)", exit, int(output.ExitValidation))
+	}
 }
 
-// TestHandleRootError_NoDeprecationKeepsPlainError pins the other half: with no
-// deprecation pending, the legacy fallback stays a plain "Error:" line, so the
-// fix does not reshape every unrecognized cobra error.
-func TestHandleRootError_NoDeprecationKeepsPlainError(t *testing.T) {
+// TestHandleRootError_AuthConfigWireGolden is the wire-consistency regression
+// baseline for auth/config errors: it pins the typed envelope and exit code the
+// dispatcher produces for the two source-of-truth shapes, which are constructed
+// typed at their origin in internal/auth and internal/core.
+func TestHandleRootError_AuthConfigWireGolden(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	t.Run("token missing exits 3 with token_missing authentication envelope", func(t *testing.T) {
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		errOut := &bytes.Buffer{}
+		f.IOStreams.ErrOut = errOut
+
+		exit := handleRootError(f, internalauth.NewNeedUserAuthorizationError("u_golden"))
+		if exit != int(output.ExitAuth) {
+			t.Errorf("exit = %d, want %d (ExitAuth)", exit, int(output.ExitAuth))
+		}
+
+		errObj := decodeErrorEnvelope(t, errOut.Bytes())
+		if got := errObj["type"]; got != "authentication" {
+			t.Errorf("error.type = %v, want %q", got, "authentication")
+		}
+		if got := errObj["subtype"]; got != "token_missing" {
+			t.Errorf("error.subtype = %v, want %q", got, "token_missing")
+		}
+		if got, _ := errObj["message"].(string); !strings.Contains(got, "need_user_authorization") {
+			t.Errorf("error.message = %q, must keep the need_user_authorization marker", got)
+		}
+		if got, _ := errObj["message"].(string); !strings.Contains(got, "u_golden") {
+			t.Errorf("error.message = %q, must carry the user open id", got)
+		}
+		if got, _ := errObj["hint"].(string); !strings.Contains(got, "auth login") {
+			t.Errorf("error.hint = %q, must point at auth login", got)
+		}
+		if got := errObj["user_open_id"]; got != "u_golden" {
+			t.Errorf("error.user_open_id = %v, want %q", got, "u_golden")
+		}
+	})
+
+	t.Run("not configured exits 3 with not_configured config envelope", func(t *testing.T) {
+		f, _, _, _ := cmdutil.TestFactory(t, nil)
+		errOut := &bytes.Buffer{}
+		f.IOStreams.ErrOut = errOut
+
+		exit := handleRootError(f, core.NotConfiguredError())
+		if exit != int(output.ExitAuth) {
+			t.Errorf("exit = %d, want %d (config shares ExitAuth)", exit, int(output.ExitAuth))
+		}
+
+		errObj := decodeErrorEnvelope(t, errOut.Bytes())
+		if got := errObj["type"]; got != "config" {
+			t.Errorf("error.type = %v, want %q", got, "config")
+		}
+		if got := errObj["subtype"]; got != "not_configured" {
+			t.Errorf("error.subtype = %v, want %q", got, "not_configured")
+		}
+		if got, _ := errObj["message"].(string); !strings.Contains(got, "not configured") {
+			t.Errorf("error.message = %q, want the not-configured message", got)
+		}
+		if got, _ := errObj["hint"].(string); !strings.Contains(got, "config init") {
+			t.Errorf("error.hint = %q, must point at config init", got)
+		}
+	})
+}
+
+// decodeErrorEnvelope unmarshals a typed error envelope and returns its
+// top-level "error" object, failing the test if the shape is unexpected.
+func decodeErrorEnvelope(t *testing.T, raw []byte) map[string]any {
+	t.Helper()
+	var env map[string]any
+	if err := json.Unmarshal(raw, &env); err != nil {
+		t.Fatalf("envelope is not valid JSON: %v\n%s", err, raw)
+	}
+	errObj, ok := env["error"].(map[string]any)
+	if !ok {
+		t.Fatalf("envelope missing top-level error object: %s", raw)
+	}
+	return errObj
+}
+
+// TestHandleRootError_NoDeprecationTypesUsageError pins that a residual cobra
+// usage error (missing required flag) is typed as invalid_argument with exit 2
+// even with no deprecation pending — never cobra's plain "Error:" line.
+func TestHandleRootError_NoDeprecationTypesUsageError(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	t.Cleanup(func() { deprecation.SetPending(nil) })
 	deprecation.SetPending(nil)
@@ -311,9 +391,45 @@ func TestHandleRootError_NoDeprecationKeepsPlainError(t *testing.T) {
 	errOut := &bytes.Buffer{}
 	f.IOStreams.ErrOut = errOut
 
-	handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
-	if !strings.HasPrefix(errOut.String(), "Error:") {
-		t.Errorf("no deprecation pending: want a plain 'Error:' line, got:\n%s", errOut.String())
+	exit := handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
+
+	out := errOut.String()
+	if strings.HasPrefix(strings.TrimSpace(out), "Error:") {
+		t.Fatalf("want a structured envelope, got a plain Error: line:\n%s", out)
+	}
+	errObj := decodeErrorEnvelope(t, errOut.Bytes())
+	if got := errObj["type"]; got != "validation" {
+		t.Errorf("error.type = %v, want %q", got, "validation")
+	}
+	if got, _ := errObj["message"].(string); !strings.Contains(got, "values") {
+		t.Errorf("error.message = %q, must carry the failing flag name", got)
+	}
+	if exit != int(output.ExitValidation) {
+		t.Errorf("exit = %d, want %d (validation envelope → category-derived exit)", exit, int(output.ExitValidation))
+	}
+}
+
+// TestHandleRootError_LeakedUntypedErrorBecomesInternal pins that an untyped
+// error that does NOT match a cobra usage shape (i.e. one that leaked past the
+// typed boundary from a helper) is classified as an internal fault (exit 5),
+// not blamed on the user's input as a validation error.
+func TestHandleRootError_LeakedUntypedErrorBecomesInternal(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	t.Cleanup(func() { deprecation.SetPending(nil) })
+	deprecation.SetPending(nil)
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	errOut := &bytes.Buffer{}
+	f.IOStreams.ErrOut = errOut
+
+	exit := handleRootError(f, fmt.Errorf("upstream helper exploded: %w", io.ErrUnexpectedEOF))
+
+	errObj := decodeErrorEnvelope(t, errOut.Bytes())
+	if got := errObj["type"]; got != "internal" {
+		t.Errorf("error.type = %v, want %q (leaked untyped error must not be mislabeled validation)", got, "internal")
+	}
+	if exit != int(output.ExitInternal) {
+		t.Errorf("exit = %d, want %d (internal envelope → category-derived exit)", exit, int(output.ExitInternal))
 	}
 }
 
@@ -337,12 +453,32 @@ func TestHandleRootError_PartialWritePreservesExitCode(t *testing.T) {
 	}
 }
 
-// TestHandleRootError_TypedOuterShortCircuitsPromote pins that when a typed
-// *errs.AuthenticationError carries a legacy *NeedAuthorizationError in its
-// Cause chain, the dispatcher does NOT run PromoteAuthError — doing so
-// would replace the producer's TokenExpired subtype + custom hint with the
-// promoted shape's TokenMissing.
-func TestHandleRootError_TypedOuterShortCircuitsPromote(t *testing.T) {
+// TestHandleRootError_BareErrorExitCodeNoStderr pins the silent-exit
+// contract: a *output.BareError is honored for its exit code while stderr stays
+// empty (stdout already carries the result, so the dispatcher must not layer a
+// second envelope on top).
+func TestHandleRootError_BareErrorExitCodeNoStderr(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	errOut := &bytes.Buffer{}
+	f.IOStreams.ErrOut = errOut
+
+	exit := handleRootError(f, output.ErrBare(output.ExitAuth))
+	if exit != int(output.ExitAuth) {
+		t.Errorf("exit = %d, want %d (BareError code propagated)", exit, int(output.ExitAuth))
+	}
+	if errOut.Len() != 0 {
+		t.Errorf("stderr must stay empty for a bare predicate signal, got:\n%s", errOut.String())
+	}
+}
+
+// TestHandleRootError_TypedAuthErrorWithLegacyCausePreserved pins that a typed
+// *errs.AuthenticationError carrying a legacy *NeedAuthorizationError in its
+// Cause chain renders the producer's TokenExpired subtype + custom hint
+// verbatim — the legacy sentinel in the Cause chain never coarsens the wire
+// shape.
+func TestHandleRootError_TypedAuthErrorWithLegacyCausePreserved(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 
 	f, _, _, _ := cmdutil.TestFactory(t, nil)
@@ -494,136 +630,3 @@ func TestApplyNeedAuthorizationHint_AppendsExistingHint(t *testing.T) {
 		t.Errorf("expected appended hint %q, got %q", want, authErr.Hint)
 	}
 }
-
-// TestEnrichPermissionError_CanonicalConvergence pins that the legacy
-// *output.ExitError dispatch path produces the same canonical Message + Hint
-// + ConsoleURL as the typed *errs.PermissionError dispatch path. Both paths
-// share errclass.CanonicalPermissionMessage / errclass.PermissionHint /
-// errclass.ConsoleURL — so a wire consumer cannot tell which path produced
-// the envelope.
-func TestEnrichPermissionError_CanonicalConvergence(t *testing.T) {
-	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
-
-	cases := []struct {
-		name            string
-		larkCode        int
-		legacyErrType   string
-		wantMsgSubstrs  []string
-		wantHintSubstrs []string
-		wantConsoleURL  bool
-		wantNoAuthLogin bool // hint must not suggest `auth login`
-	}{
-		{
-			name:            "99991672 app_scope_not_applied",
-			larkCode:        99991672,
-			legacyErrType:   "permission",
-			wantMsgSubstrs:  []string{"access denied", "app cli_test", "drive:drive:read"},
-			wantHintSubstrs: []string{"developer console", "open.feishu.cn"},
-			wantConsoleURL:  true,
-			wantNoAuthLogin: true,
-		},
-		{
-			name:            "99991679 missing_scope",
-			larkCode:        99991679,
-			legacyErrType:   "permission",
-			wantMsgSubstrs:  []string{"unauthorized", "user authorization"},
-			wantHintSubstrs: []string{"lark-cli auth login"},
-		},
-		{
-			name:            "99991673 app_unavailable",
-			larkCode:        99991673,
-			legacyErrType:   "app_status",
-			wantMsgSubstrs:  []string{"unauthorized app", "app cli_test", "not properly installed"},
-			wantHintSubstrs: []string{"tenant admin", "install status"},
-		},
-		{
-			name:            "99991662 app_disabled",
-			larkCode:        99991662,
-			legacyErrType:   "app_status",
-			wantMsgSubstrs:  []string{"app cli_test", "not in use", "currently disabled"},
-			wantHintSubstrs: []string{"tenant admin", "re-enable"},
-		},
-	}
-
-	for _, tc := range cases {
-		t.Run(tc.name, func(t *testing.T) {
-			f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
-				AppID: "cli_test", AppSecret: "s", Brand: core.BrandFeishu,
-			})
-			f.ResolvedIdentity = core.AsUser
-
-			// Mimic the wire shape ErrAPI produces: legacy *ExitError with
-			// Detail.Type populated by ClassifyLarkError, Detail.Detail
-			// carrying the permission_violations block so ExtractRequiredScopes
-			// can recover the missing scope.
-			scopeForDetail := "drive:drive:read"
-			exitErr := &output.ExitError{
-				Code: output.ExitAPI,
-				Detail: &output.ErrDetail{
-					Type:    tc.legacyErrType,
-					Code:    tc.larkCode,
-					Message: "upstream raw message — must be replaced",
-					Detail: map[string]interface{}{
-						"permission_violations": []interface{}{
-							map[string]interface{}{"subject": scopeForDetail},
-						},
-					},
-				},
-			}
-			enrichPermissionError(f, exitErr)
-
-			for _, sub := range tc.wantMsgSubstrs {
-				if !strings.Contains(exitErr.Detail.Message, sub) {
-					t.Errorf("Message %q missing substring %q", exitErr.Detail.Message, sub)
-				}
-			}
-			if exitErr.Detail.Message == "upstream raw message — must be replaced" {
-				t.Errorf("Message must be rewritten to canonical text; got upstream verbatim")
-			}
-			for _, sub := range tc.wantHintSubstrs {
-				if !strings.Contains(exitErr.Detail.Hint, sub) {
-					t.Errorf("Hint %q missing substring %q", exitErr.Detail.Hint, sub)
-				}
-			}
-			if tc.wantNoAuthLogin && strings.Contains(exitErr.Detail.Hint, "auth login") {
-				t.Errorf("Hint must not suggest `auth login` for this subtype; got %q", exitErr.Detail.Hint)
-			}
-			if tc.wantConsoleURL && exitErr.Detail.ConsoleURL == "" {
-				t.Error("ConsoleURL should be populated when missing scopes are present")
-			}
-		})
-	}
-}
-
-// TestEnrichPermissionError_SkipsUnrelatedTypes pins that an ExitError whose
-// Detail.Type is neither "permission" nor "app_status" is left untouched —
-// no Message rewrite, no Hint rewrite, no ConsoleURL injection.
-func TestEnrichPermissionError_SkipsUnrelatedTypes(t *testing.T) {
-	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
-	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
-		AppID: "cli_test", AppSecret: "s", Brand: core.BrandFeishu,
-	})
-	f.ResolvedIdentity = core.AsUser
-
-	for _, ty := range []string{"api_error", "validation", "rate_limit", "auth"} {
-		exitErr := &output.ExitError{
-			Code: output.ExitAPI,
-			Detail: &output.ErrDetail{
-				Type:    ty,
-				Code:    99991400,
-				Message: "untouched",
-				Hint:    "original hint",
-			},
-		}
-		enrichPermissionError(f, exitErr)
-		if exitErr.Detail.Message != "untouched" {
-			t.Errorf("type=%q: Message was rewritten unexpectedly: %q", ty, exitErr.Detail.Message)
-		}
-		if exitErr.Detail.Hint != "original hint" {
-			t.Errorf("type=%q: Hint was rewritten unexpectedly: %q", ty, exitErr.Detail.Hint)
-		}
-		if exitErr.Detail.ConsoleURL != "" {
-			t.Errorf("type=%q: ConsoleURL should not be injected; got %q", ty, exitErr.Detail.ConsoleURL)
-		}
-	}
-}

cmd/schema/schema.go

@@ -5,17 +5,17 @@ package schema
 
 import (
 	"context"
-	"fmt"
+	"errors"
 	"io"
-	"sort"
 	"strings"
 
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/apicatalog"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/internal/schema"
-	"github.com/larksuite/cli/internal/util"
 	"github.com/spf13/cobra"
 )
 
@@ -24,336 +24,10 @@ type SchemaOptions struct {
 	Factory *cmdutil.Factory
 	Ctx     context.Context
 
-	// Positional args
-	Path      string   // first positional, when only one is given
-	ExtraArgs []string // 2nd+ positional args (space-separated form)
-
-	// Flags
-	Format string
-}
-
-func printServices(w io.Writer) {
-	services := registry.ListFromMetaProjects()
-	fmt.Fprintf(w, "%sAvailable services:%s\n\n", output.Bold, output.Reset)
-	for _, s := range services {
-		spec := registry.LoadFromMeta(s)
-		title := registry.GetStrFromMap(spec, "title")
-		if title == "" {
-			title = registry.GetStrFromMap(spec, "description")
-		}
-		fmt.Fprintf(w, "  %s%s%s  %s%s%s\n", output.Cyan, s, output.Reset, output.Dim, title, output.Reset)
-	}
-	fmt.Fprintf(w, "\n%sUsage: lark-cli schema <service>.<resource>.<method>%s\n", output.Dim, output.Reset)
-}
-
-func printResourceList(w io.Writer, spec map[string]interface{}, mode core.StrictMode) {
-	name := registry.GetStrFromMap(spec, "name")
-	version := registry.GetStrFromMap(spec, "version")
-	title := registry.GetStrFromMap(spec, "title")
-	if title == "" {
-		title = registry.GetStrFromMap(spec, "description")
-	}
-	servicePath := registry.GetStrFromMap(spec, "servicePath")
-
-	fmt.Fprintf(w, "%s%s%s (%s) — %s\n\n", output.Bold, name, output.Reset, version, title)
-	fmt.Fprintf(w, "%sBase path: %s%s\n\n", output.Dim, servicePath, output.Reset)
-
-	resources, _ := spec["resources"].(map[string]interface{})
-	for _, resName := range sortedKeys(resources) {
-		resMap, _ := resources[resName].(map[string]interface{})
-		methods, _ := resMap["methods"].(map[string]interface{})
-		methods = filterMethodsByStrictMode(methods, mode)
-		if len(methods) == 0 {
-			continue
-		}
-		fmt.Fprintf(w, "  %s%s%s\n", output.Cyan, resName, output.Reset)
-		for _, methodName := range sortedKeys(methods) {
-			m, _ := methods[methodName].(map[string]interface{})
-			httpMethod := registry.GetStrFromMap(m, "httpMethod")
-			desc := registry.GetStrFromMap(m, "description")
-			danger := ""
-			if d, _ := m["danger"].(bool); d {
-				danger = fmt.Sprintf(" %s[danger]%s", output.Red, output.Reset)
-			}
-			fmt.Fprintf(w, "    %-7s %s%s%s  %s%s%s%s\n", httpMethod, output.Bold, methodName, output.Reset, output.Dim, desc, output.Reset, danger)
-		}
-		fmt.Fprintln(w)
-	}
-	fmt.Fprintf(w, "%sUsage: lark-cli schema %s.<resource>.<method>%s\n", output.Dim, name, output.Reset)
-}
-
-// hasFileFields returns true if any requestBody field has type "file".
-func hasFileFields(method map[string]interface{}) (bool, []string) {
-	names := cmdutil.DetectFileFields(method)
-	return len(names) > 0, names
-}
-
-func printMethodDetail(w io.Writer, spec map[string]interface{}, resName, methodName string, method map[string]interface{}) {
-	servicePath := registry.GetStrFromMap(spec, "servicePath")
-	specName := registry.GetStrFromMap(spec, "name")
-	methodPath := registry.GetStrFromMap(method, "path")
-	fullPath := servicePath + "/" + methodPath
-	httpMethod := registry.GetStrFromMap(method, "httpMethod")
-	desc := registry.GetStrFromMap(method, "description")
-	isFileUpload, fileFieldNames := hasFileFields(method)
-
-	fmt.Fprintf(w, "%s%s.%s.%s%s\n\n", output.Bold, specName, resName, methodName, output.Reset)
-
-	httpColor := output.Yellow
-	if httpMethod == "GET" {
-		httpColor = output.Green
-	} else if httpMethod == "DELETE" {
-		httpColor = output.Red
-	}
-	fmt.Fprintf(w, "  %s%s%s %s\n", httpColor, httpMethod, output.Reset, fullPath)
-	if desc != "" {
-		fmt.Fprintf(w, "  %s\n", desc)
-	}
-	fmt.Fprintln(w)
-
-	// Parameters
-	params, _ := method["parameters"].(map[string]interface{})
-	if len(params) > 0 {
-		fmt.Fprintf(w, "%sParameters:%s\n\n", output.Bold, output.Reset)
-		fmt.Fprintf(w, "  %s--params%s  <json>  %soptional%s\n", output.Cyan, output.Reset, output.Dim, output.Reset)
-		for _, paramName := range sortedParamKeys(params) {
-			p, _ := params[paramName].(map[string]interface{})
-			pType := registry.GetStrFromMap(p, "type")
-			if pType == "" {
-				pType = "string"
-			}
-			location := registry.GetStrFromMap(p, "location")
-			required, _ := p["required"].(bool)
-			reqStr := fmt.Sprintf("%soptional%s", output.Dim, output.Reset)
-			if required {
-				reqStr = fmt.Sprintf("%srequired%s", output.Red, output.Reset)
-			}
-			locColor := output.Dim
-			if location == "path" {
-				locColor = output.Yellow
-			}
-			// Options (enum values)
-			optStr := formatOptions(p)
-			fmt.Fprintf(w, "      - %s%s%s (%s, %s%s%s, %s)%s\n", output.Cyan, paramName, output.Reset, pType, locColor, location, output.Reset, reqStr, optStr)
-			if pdesc := registry.GetStrFromMap(p, "description"); pdesc != "" {
-				pdesc = util.TruncateStrWithEllipsis(pdesc, 100)
-				fmt.Fprintf(w, "        %s%s%s\n", output.Dim, pdesc, output.Reset)
-			}
-			if ex := registry.GetStrFromMap(p, "example"); ex != "" {
-				fmt.Fprintf(w, "        %se.g. %s%s\n", output.Dim, ex, output.Reset)
-			}
-			if rangeStr := formatRange(p); rangeStr != "" {
-				fmt.Fprintf(w, "        %srange: %s%s\n", output.Dim, rangeStr, output.Reset)
-			}
-		}
-		fmt.Fprintln(w)
-	}
-
-	// --data for write methods
-	if httpMethod == "POST" || httpMethod == "PUT" || httpMethod == "PATCH" || httpMethod == "DELETE" {
-		if len(params) == 0 {
-			fmt.Fprintf(w, "%sParameters:%s\n\n", output.Bold, output.Reset)
-		}
-		fileUploadTag := ""
-		if isFileUpload {
-			fileUploadTag = fmt.Sprintf("  %s[file upload]%s", output.Yellow, output.Reset)
-		}
-		fmt.Fprintf(w, "  %s--data%s  <json>  %soptional%s%s\n", output.Cyan, output.Reset, output.Dim, output.Reset, fileUploadTag)
-		requestBody, _ := method["requestBody"].(map[string]interface{})
-		if len(requestBody) > 0 {
-			printNestedFields(w, requestBody, "      ", "")
-		}
-
-		if isFileUpload {
-			if len(fileFieldNames) == 1 {
-				fmt.Fprintf(w, "\n  %s--file%s  <[field=]path>  %sfile upload%s\n", output.Cyan, output.Reset, output.Dim, output.Reset)
-				fmt.Fprintf(w, "      Upload file as multipart/form-data. Default field: %q\n", fileFieldNames[0])
-			} else {
-				fmt.Fprintf(w, "\n  %s--file%s  <field=path>  %sfile upload%s\n", output.Cyan, output.Reset, output.Dim, output.Reset)
-				fmt.Fprintf(w, "      Upload file as multipart/form-data. Fields: %s\n", strings.Join(fileFieldNames, ", "))
-			}
-		}
-		fmt.Fprintln(w)
-	}
-
-	// Response
-	responseBody, _ := method["responseBody"].(map[string]interface{})
-	if len(responseBody) > 0 {
-		fmt.Fprintf(w, "%sResponse:%s\n\n", output.Bold, output.Reset)
-		printNestedFields(w, responseBody, "  ", "")
-		fmt.Fprintln(w)
-	}
-
-	// Identity
-	if tokens, ok := method["accessTokens"].([]interface{}); ok && len(tokens) > 0 {
-		var identities []string
-		for _, t := range tokens {
-			if s, ok := t.(string); ok {
-				switch s {
-				case "user":
-					identities = append(identities, "user")
-				case "tenant":
-					identities = append(identities, "bot")
-				}
-			}
-		}
-		if len(identities) > 0 {
-			fmt.Fprintf(w, "%sIdentity:%s %s\n", output.Bold, output.Reset, strings.Join(identities, ", "))
-		}
-	}
-
-	// Scopes (all)
-	if scopes, ok := method["scopes"].([]interface{}); ok && len(scopes) > 0 {
-		var scopeStrs []string
-		for _, s := range scopes {
-			if str, ok := s.(string); ok {
-				scopeStrs = append(scopeStrs, str)
-			}
-		}
-		fmt.Fprintf(w, "%sScopes:%s   %s\n", output.Bold, output.Reset, strings.Join(scopeStrs, ", "))
-	}
-
-	// CLI example
-	if isFileUpload && len(fileFieldNames) == 1 {
-		fmt.Fprintf(w, "%sCLI:%s      lark-cli %s %s %s --file <path>\n", output.Bold, output.Reset, specName, resName, methodName)
-	} else if isFileUpload {
-		fmt.Fprintf(w, "%sCLI:%s      lark-cli %s %s %s --file <field=path>\n", output.Bold, output.Reset, specName, resName, methodName)
-	} else {
-		fmt.Fprintf(w, "%sCLI:%s      lark-cli %s %s %s\n", output.Bold, output.Reset, specName, resName, methodName)
-	}
-
-	// Docs
-	if docUrl := registry.GetStrFromMap(method, "docUrl"); docUrl != "" {
-		fmt.Fprintf(w, "%sDocs:%s     %s\n", output.Bold, output.Reset, docUrl)
-	}
-}
-
-func printNestedFields(w io.Writer, fields map[string]interface{}, indent, prefix string) {
-	for _, fieldName := range sortedFieldKeys(fields) {
-		f, _ := fields[fieldName].(map[string]interface{})
-		fullName := fieldName
-		if prefix != "" {
-			fullName = prefix + "." + fieldName
-		}
-		fType := registry.GetStrFromMap(f, "type")
-		required, _ := f["required"].(bool)
-		reqStr := fmt.Sprintf("%soptional%s", output.Dim, output.Reset)
-		if required {
-			reqStr = fmt.Sprintf("%srequired%s", output.Red, output.Reset)
-		}
-		optStr := formatOptions(f)
-		fmt.Fprintf(w, "%s- %s%s%s (%s, %s)%s\n", indent, output.Cyan, fullName, output.Reset, fType, reqStr, optStr)
-		desc := registry.GetStrFromMap(f, "description")
-		if desc != "" {
-			desc = util.TruncateStrWithEllipsis(desc, 100)
-			fmt.Fprintf(w, "%s  %s%s%s\n", indent, output.Dim, desc, output.Reset)
-		}
-		if ex := registry.GetStrFromMap(f, "example"); ex != "" {
-			fmt.Fprintf(w, "%s  %se.g. %s%s\n", indent, output.Dim, ex, output.Reset)
-		}
-		if rangeStr := formatRange(f); rangeStr != "" {
-			fmt.Fprintf(w, "%s  %srange: %s%s\n", indent, output.Dim, rangeStr, output.Reset)
-		}
-		if props, ok := f["properties"].(map[string]interface{}); ok && len(props) > 0 {
-			printNestedFields(w, props, indent+"  ", fullName)
-		}
-	}
-}
-
-// formatOptions returns " — val1 | val2 | ..." if field has options, else "".
-func formatOptions(f map[string]interface{}) string {
-	opts, ok := f["options"].([]interface{})
-	if !ok || len(opts) == 0 {
-		return ""
-	}
-	var vals []string
-	for _, o := range opts {
-		if om, ok := o.(map[string]interface{}); ok {
-			if v := registry.GetStrFromMap(om, "value"); v != "" {
-				vals = append(vals, v)
-			}
-		}
-	}
-	if len(vals) == 0 {
-		return ""
-	}
-	return fmt.Sprintf(" %s— %s%s", output.Dim, strings.Join(vals, " | "), output.Reset)
-}
-
-// formatRange returns "min..max" if field has min/max, else "".
-func formatRange(f map[string]interface{}) string {
-	minVal := registry.GetStrFromMap(f, "min")
-	maxVal := registry.GetStrFromMap(f, "max")
-	if minVal == "" && maxVal == "" {
-		return ""
-	}
-	if minVal != "" && maxVal != "" {
-		return minVal + ".." + maxVal
-	}
-	if minVal != "" {
-		return ">=" + minVal
-	}
-	return "<=" + maxVal
-}
-
-// sortedKeys returns map keys in alphabetical order.
-func sortedKeys(m map[string]interface{}) []string {
-	keys := make([]string, 0, len(m))
-	for k := range m {
-		keys = append(keys, k)
-	}
-	sort.Strings(keys)
-	return keys
-}
-
-// sortedParamKeys returns parameter keys sorted: required first, then alphabetical.
-func sortedParamKeys(params map[string]interface{}) []string {
-	keys := make([]string, 0, len(params))
-	for k := range params {
-		keys = append(keys, k)
-	}
-	sort.Slice(keys, func(i, j int) bool {
-		pi, _ := params[keys[i]].(map[string]interface{})
-		pj, _ := params[keys[j]].(map[string]interface{})
-		ri, _ := pi["required"].(bool)
-		rj, _ := pj["required"].(bool)
-		if ri != rj {
-			return ri
-		}
-		return keys[i] < keys[j]
-	})
-	return keys
-}
-
-// sortedFieldKeys returns field keys sorted: required first, then alphabetical.
-func sortedFieldKeys(fields map[string]interface{}) []string {
-	keys := make([]string, 0, len(fields))
-	for k := range fields {
-		keys = append(keys, k)
-	}
-	sort.Slice(keys, func(i, j int) bool {
-		fi, _ := fields[keys[i]].(map[string]interface{})
-		fj, _ := fields[keys[j]].(map[string]interface{})
-		ri, _ := fi["required"].(bool)
-		rj, _ := fj["required"].(bool)
-		if ri != rj {
-			return ri
-		}
-		return keys[i] < keys[j]
-	})
-	return keys
-}
-
-func findResourceByPath(resources map[string]interface{}, parts []string) (map[string]interface{}, string, []string) {
-	for i := len(parts); i >= 1; i-- {
-		candidateName := strings.Join(parts[:i], ".")
-		if res, ok := resources[candidateName]; ok {
-			if resMap, ok := res.(map[string]interface{}); ok {
-				return resMap, candidateName, parts[i:]
-			}
-		}
-	}
-	return nil, "", nil
+	// Args are the positional path segments, in either the dotted single-arg
+	// form ("im.messages.reply") or the space-separated form ("im messages
+	// reply"); apicatalog.ParsePath normalizes both.
+	Args []string
 }
 
 // NewCmdSchema creates the schema command. If runF is non-nil it is called instead of schemaRun (test hook).
@@ -365,12 +39,7 @@ func NewCmdSchema(f *cmdutil.Factory, runF func(*SchemaOptions) error) *cobra.Co
 		Short: "View API method parameters, types, and scopes",
 		Args:  cobra.MaximumNArgs(8),
 		RunE: func(cmd *cobra.Command, args []string) error {
-			if len(args) > 0 {
-				opts.Path = args[0]
-			}
-			if len(args) > 1 {
-				opts.ExtraArgs = args[1:]
-			}
+			opts.Args = append([]string(nil), args...)
 			opts.Ctx = cmd.Context()
 			if runF != nil {
 				return runF(opts)
@@ -380,433 +49,89 @@ func NewCmdSchema(f *cmdutil.Factory, runF func(*SchemaOptions) error) *cobra.Co
 	}
 	cmdutil.DisableAuthCheck(cmd)
 
+	// Tolerated for agent compatibility; ignored — schema only emits the JSON
+	// envelope, and its output is identity-independent (strict-mode filtering
+	// comes from ResolveStrictMode, never from --as).
+	cmd.Flags().String("format", "json", "")
+	cmd.Flags().Bool("json", true, "")
+	cmd.Flags().String("as", "", "")
+	_ = cmd.Flags().MarkHidden("format")
+	_ = cmd.Flags().MarkHidden("json")
+	_ = cmd.Flags().MarkHidden("as")
+
 	cmd.ValidArgsFunction = completeSchemaPath(f)
-	cmd.Flags().StringVar(&opts.Format, "format", "json", "output format: json (default) | pretty")
-	cmdutil.RegisterFlagCompletion(cmd, "format", func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
-		return []string{"json", "pretty"}, cobra.ShellCompDirectiveNoFileComp
-	})
 	cmdutil.SetRisk(cmd, cmdutil.RiskRead)
 
 	return cmd
 }
 
-// completeSchemaPath provides tab-completion for the schema path argument.
-// It handles both legacy dotted resource names (e.g. app.table.fields) and the
-// newer space-separated form (e.g. `schema im messages reply`).
+// completeSchemaPath is a thin adapter over the embedded catalog's Complete.
+// It uses the embedded source so completion candidates match what `schema`
+// execution can resolve (both overlay-free).
 func completeSchemaPath(f *cmdutil.Factory) func(*cobra.Command, []string, string) ([]string, cobra.ShellCompDirective) {
 	return func(cmd *cobra.Command, args []string, toComplete string) ([]string, cobra.ShellCompDirective) {
 		mode := f.ResolveStrictMode(cmd.Context())
-
-		// Case 1: legacy "single dotted arg" path — no previous args yet
-		if len(args) == 0 {
-			parts := strings.Split(toComplete, ".")
-			if len(parts) <= 1 {
-				var completions []string
-				for _, s := range registry.ListFromMetaProjects() {
-					if strings.HasPrefix(s, toComplete) {
-						completions = append(completions, s+".")
-					}
-				}
-				return completions, cobra.ShellCompDirectiveNoFileComp | cobra.ShellCompDirectiveNoSpace
-			}
-			serviceName := parts[0]
-			spec := registry.LoadFromMeta(serviceName)
-			if spec == nil {
-				return nil, cobra.ShellCompDirectiveNoFileComp
-			}
-			spec = filterSpecByStrictMode(spec, mode)
-			resources, _ := spec["resources"].(map[string]interface{})
-			if resources == nil {
-				return nil, cobra.ShellCompDirectiveNoFileComp
-			}
-			afterService := strings.Join(parts[1:], ".")
-			completions := completeSchemaPathForSpec(serviceName, resources, afterService)
-			allTrailingDot := len(completions) > 0
-			for _, c := range completions {
-				if !strings.HasSuffix(c, ".") {
-					allTrailingDot = false
-					break
-				}
-			}
-			directive := cobra.ShellCompDirectiveNoFileComp
-			if allTrailingDot {
-				directive |= cobra.ShellCompDirectiveNoSpace
-			}
-			return completions, directive
+		completions, noSpace := registry.EmbeddedCatalog().Complete(args, toComplete, registry.FilterForStrictMode(mode))
+		directive := cobra.ShellCompDirectiveNoFileComp
+		if noSpace {
+			directive |= cobra.ShellCompDirectiveNoSpace
 		}
-
-		// Case 2: space-form, args already has segments
-		// Walk down service -> resource(s) -> method based on existing args
-		serviceName := args[0]
-		spec := registry.LoadFromMeta(serviceName)
-		if spec == nil {
-			return nil, cobra.ShellCompDirectiveNoFileComp
-		}
-		spec = filterSpecByStrictMode(spec, mode)
-		resources, _ := spec["resources"].(map[string]interface{})
-		if resources == nil {
-			return nil, cobra.ShellCompDirectiveNoFileComp
-		}
-
-		// args[1:] are resource path segments (possibly partial); current
-		// toComplete is the next segment under cursor.
-		consumed := args[1:]
-		resource, _, remaining := findResourceByPath(resources, consumed)
-		if resource == nil {
-			// Suggest top-level resource names that match toComplete
-			var completions []string
-			for resName := range resources {
-				if strings.HasPrefix(resName, toComplete) {
-					completions = append(completions, resName)
-				}
-			}
-			sort.Strings(completions)
-			return completions, cobra.ShellCompDirectiveNoFileComp
-		}
-		if len(remaining) > 0 {
-			// Already typed past the resource — suggest methods
-			methods, _ := resource["methods"].(map[string]interface{})
-			methods = filterMethodsByStrictMode(methods, mode)
-			var completions []string
-			for mName := range methods {
-				if strings.HasPrefix(mName, toComplete) {
-					completions = append(completions, mName)
-				}
-			}
-			sort.Strings(completions)
-			return completions, cobra.ShellCompDirectiveNoFileComp
-		}
-		// Resource matched exactly, suggest methods
-		methods, _ := resource["methods"].(map[string]interface{})
-		methods = filterMethodsByStrictMode(methods, mode)
-		var completions []string
-		for mName := range methods {
-			if strings.HasPrefix(mName, toComplete) {
-				completions = append(completions, mName)
-			}
-		}
-		sort.Strings(completions)
-		return completions, cobra.ShellCompDirectiveNoFileComp
+		return completions, directive
 	}
 }
 
-func completeSchemaPathForSpec(serviceName string, resources map[string]interface{}, afterService string) []string {
-	var completions []string
-
-	for resName, resVal := range resources {
-		if strings.HasPrefix(resName, afterService) {
-			completions = append(completions, serviceName+"."+resName+".")
-			continue
-		}
-		if !strings.HasPrefix(afterService, resName+".") {
-			continue
-		}
-		methodPrefix := afterService[len(resName)+1:]
-		resMap, _ := resVal.(map[string]interface{})
-		if resMap == nil {
-			continue
-		}
-		methods, _ := resMap["methods"].(map[string]interface{})
-		for methodName := range methods {
-			if strings.HasPrefix(methodName, methodPrefix) {
-				completions = append(completions, serviceName+"."+resName+"."+methodName)
-			}
-		}
-	}
-
-	sort.Strings(completions)
-	return completions
-}
-
 func schemaRun(opts *SchemaOptions) error {
 	out := opts.Factory.IOStreams.Out
 	mode := opts.Factory.ResolveStrictMode(opts.Ctx)
-
-	// args may have arrived as a single string (legacy single-arg path) or
-	// split into multiple — normalize to a single args slice.
-	var rawArgs []string
-	if opts.Path != "" {
-		rawArgs = []string{opts.Path}
-	}
-	if len(opts.ExtraArgs) > 0 {
-		if opts.Path != "" {
-			rawArgs = append([]string{opts.Path}, opts.ExtraArgs...)
-		} else {
-			rawArgs = append([]string(nil), opts.ExtraArgs...)
-		}
-	}
-	parts := schema.ParsePath(rawArgs)
-
-	if opts.Format == "pretty" {
-		return runPrettyMode(out, parts, mode)
-	}
-	return runJSONMode(out, parts, mode)
+	return runSchema(out, apicatalog.ParsePath(opts.Args), mode)
 }
 
-// runJSONMode dispatches list/single envelope output based on parts.
-// JSON mode uses embedded data only (bypasses remote overlay) so envelope
-// output is deterministic across machines.
-func runJSONMode(out io.Writer, parts []string, mode core.StrictMode) error {
-	filter := strictModeFilter(mode)
-
-	switch len(parts) {
-	case 0:
-		envs := schema.AssembleAll(filter)
-		output.PrintJson(out, envs)
-		return nil
-	case 1:
-		spec := registry.EmbeddedSpec(parts[0])
-		if spec == nil {
-			return errUnknownEmbeddedService(parts[0])
+// runSchema resolves the path through the embedded catalog and renders the
+// matching envelope(s). The catalog owns navigation (Resolve + MethodRefs) and
+// schema owns rendering (Envelope/Envelopes); this adapter only chooses the
+// output shape — a single resolved method renders as one envelope object,
+// anything broader as an array — and maps resolve failures to hints.
+func runSchema(out io.Writer, parts []string, mode core.StrictMode) error {
+	catalog := registry.EmbeddedCatalog()
+	target, err := catalog.Resolve(parts)
+	if err != nil {
+		return resolveError(err)
+	}
+	refs := catalog.MethodRefs(target, registry.FilterForStrictMode(mode))
+	if target.Kind == apicatalog.TargetMethod {
+		if len(refs) == 0 {
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"Method %s not available in current identity mode", target.Method.SchemaPath()).
+				WithHint("strict mode hides methods the active account identity cannot call; it is shown for an identity (user or bot) that has the required access token")
 		}
-		envs := schema.AssembleService(parts[0], spec, filter)
-		output.PrintJson(out, envs)
-		return nil
-	default:
-		return runJSONForPath(out, parts, filter)
-	}
-}
-
-// runJSONForPath handles len(parts) >= 2: try resource match first, fallback
-// to single-method match. Uses embedded data only.
-func runJSONForPath(out io.Writer, parts []string, filter schema.MethodFilter) error {
-	serviceName := parts[0]
-	spec := registry.EmbeddedSpec(serviceName)
-	if spec == nil {
-		return errUnknownEmbeddedService(serviceName)
-	}
-	resources, _ := spec["resources"].(map[string]interface{})
-	resource, resName, remaining := findResourceByPath(resources, parts[1:])
-	if resource == nil {
-		var names []string
-		for k := range resources {
-			names = append(names, k)
-		}
-		sort.Strings(names)
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Unknown resource: %s.%s", serviceName, strings.Join(parts[1:], ".")),
-			fmt.Sprintf("Available: %s", strings.Join(names, ", ")))
-	}
-	if len(remaining) == 0 {
-		// Resource-scoped envelope array
-		envs := assembleResource(serviceName, resName, resource, filter)
-		output.PrintJson(out, envs)
+		output.PrintJson(out, schema.EnvelopeOf(refs[0]))
 		return nil
 	}
-	methodName := remaining[0]
-	methods, _ := resource["methods"].(map[string]interface{})
-	method, ok := methods[methodName].(map[string]interface{})
-	if !ok {
-		var names []string
-		for k := range methods {
-			names = append(names, k)
-		}
-		sort.Strings(names)
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Unknown method: %s.%s.%s", serviceName, resName, methodName),
-			fmt.Sprintf("Available: %s", strings.Join(names, ", ")))
-	}
-	if len(remaining) > 1 {
-		// Method exists but caller appended extra segments — reject so they
-		// don't silently get this method's schema when they typo'd the path.
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Unknown path: %s.%s.%s",
-				serviceName, resName, strings.Join(remaining, ".")),
-			fmt.Sprintf("Method %q exists but the trailing segments %q do not resolve",
-				methodName, strings.Join(remaining[1:], ".")))
-	}
-	if filter != nil && !filter(method) {
-		// Method exists in spec but filtered out by strict mode
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Method %s.%s.%s not available in current identity mode", serviceName, resName, methodName),
-			"Use --as user / --as bot to switch")
-	}
-	env := schema.AssembleEnvelope(serviceName, []string{resName}, methodName, method)
-	output.PrintJson(out, env)
+	output.PrintJson(out, schema.Envelopes(refs))
 	return nil
 }
 
-func assembleResource(serviceName, resName string, resource map[string]interface{}, filter schema.MethodFilter) []schema.Envelope {
-	methods, _ := resource["methods"].(map[string]interface{})
-	resourcePath := []string{resName}
-	var envs []schema.Envelope
-	for methodName, raw := range methods {
-		method, ok := raw.(map[string]interface{})
-		if !ok {
-			continue
-		}
-		if filter != nil && !filter(method) {
-			continue
-		}
-		envs = append(envs, schema.AssembleEnvelope(serviceName, resourcePath, methodName, method))
+// resolveError maps a catalog *ResolveError to a typed *errs.ValidationError
+// (CategoryValidation drives the exit code; Hint promotes to the envelope),
+// preserving the historical message + hint text.
+func resolveError(err error) error {
+	var re *apicatalog.ResolveError
+	if !errors.As(err, &re) {
+		return err
 	}
-	sort.Slice(envs, func(i, j int) bool { return envs[i].Name < envs[j].Name })
-	return envs
-}
-
-// runPrettyMode preserves the existing legacy pretty rendering verbatim.
-// All printServices/printResourceList/printMethodDetail calls stay unchanged.
-func runPrettyMode(out io.Writer, parts []string, mode core.StrictMode) error {
-	if len(parts) == 0 {
-		printServices(out)
-		return nil
-	}
-	serviceName := parts[0]
-	spec := registry.LoadFromMeta(serviceName)
-	if spec == nil {
-		return errUnknownService(serviceName)
-	}
-	if len(parts) == 1 {
-		printResourceList(out, spec, mode)
-		return nil
-	}
-	resources, _ := spec["resources"].(map[string]interface{})
-	resource, resName, remaining := findResourceByPath(resources, parts[1:])
-	if resource == nil {
-		var names []string
-		for k := range resources {
-			names = append(names, k)
-		}
-		sort.Strings(names)
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Unknown resource: %s.%s", serviceName, strings.Join(parts[1:], ".")),
-			fmt.Sprintf("Available: %s", strings.Join(names, ", ")))
-	}
-	if len(remaining) == 0 {
-		fmt.Fprintf(out, "%s%s.%s%s\n\n", output.Bold, serviceName, resName, output.Reset)
-		methods, _ := resource["methods"].(map[string]interface{})
-		methods = filterMethodsByStrictMode(methods, mode)
-		for _, mName := range sortedKeys(methods) {
-			m, _ := methods[mName].(map[string]interface{})
-			httpMethod := registry.GetStrFromMap(m, "httpMethod")
-			desc := registry.GetStrFromMap(m, "description")
-			fmt.Fprintf(out, "  %-7s %s%s%s  %s%s%s\n", httpMethod, output.Bold, mName, output.Reset, output.Dim, desc, output.Reset)
-		}
-		fmt.Fprintf(out, "\n%sUsage: lark-cli schema %s.%s.<method>%s\n", output.Dim, serviceName, resName, output.Reset)
-		return nil
-	}
-	methodName := remaining[0]
-	methods, _ := resource["methods"].(map[string]interface{})
-	methods = filterMethodsByStrictMode(methods, mode)
-	method, ok := methods[methodName].(map[string]interface{})
-	if !ok {
-		var names []string
-		for k := range methods {
-			names = append(names, k)
-		}
-		sort.Strings(names)
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Unknown method: %s.%s.%s", serviceName, resName, methodName),
-			fmt.Sprintf("Available: %s", strings.Join(names, ", ")))
-	}
-	if len(remaining) > 1 {
-		return output.ErrWithHint(output.ExitValidation, "validation",
-			fmt.Sprintf("Unknown path: %s.%s.%s",
-				serviceName, resName, strings.Join(remaining, ".")),
-			fmt.Sprintf("Method %q exists but the trailing segments %q do not resolve",
-				methodName, strings.Join(remaining[1:], ".")))
-	}
-	printMethodDetail(out, spec, resName, methodName, method)
-	return nil
-}
-
-// strictModeFilter adapts core.StrictMode into a schema.MethodFilter, or returns
-// nil if strict mode is not active.
-func strictModeFilter(mode core.StrictMode) schema.MethodFilter {
-	if !mode.IsActive() {
-		return nil
-	}
-	token := registry.IdentityToAccessToken(string(mode.ForcedIdentity()))
-	return func(method map[string]interface{}) bool {
-		tokens, _ := method["accessTokens"].([]interface{})
-		if tokens == nil {
-			return true // permissive when meta_data lacks accessTokens
-		}
-		for _, t := range tokens {
-			if s, _ := t.(string); s == token {
-				return true
-			}
-		}
-		return false
-	}
-}
-
-func errUnknownService(name string) error {
-	return output.ErrWithHint(output.ExitValidation, "validation",
-		fmt.Sprintf("Unknown service: %s", name),
-		fmt.Sprintf("Available: %s", strings.Join(registry.ListFromMetaProjects(), ", ")))
-}
-
-// errUnknownEmbeddedService is the JSON-mode variant: it lists only embedded
-// services (no overlay) because JSON mode itself bypasses overlay; suggesting
-// overlay-only services would mislead callers when those services subsequently
-// fail to resolve in envelope output.
-func errUnknownEmbeddedService(name string) error {
-	return output.ErrWithHint(output.ExitValidation, "validation",
-		fmt.Sprintf("Unknown service: %s", name),
-		fmt.Sprintf("Available: %s", strings.Join(registry.EmbeddedServiceNames(), ", ")))
-}
-
-// filterSpecByStrictMode returns a shallow copy of spec with each resource's methods
-// filtered by strict mode. Returns the original spec when strict mode is off.
-func filterSpecByStrictMode(spec map[string]interface{}, mode core.StrictMode) map[string]interface{} {
-	if !mode.IsActive() {
-		return spec
-	}
-	result := make(map[string]interface{}, len(spec))
-	for k, v := range spec {
-		result[k] = v
-	}
-	resources, _ := spec["resources"].(map[string]interface{})
-	if resources == nil {
-		return result
-	}
-	filteredRes := make(map[string]interface{}, len(resources))
-	for resName, resVal := range resources {
-		resMap, ok := resVal.(map[string]interface{})
-		if !ok {
-			continue
-		}
-		methods, _ := resMap["methods"].(map[string]interface{})
-		filtered := filterMethodsByStrictMode(methods, mode)
-		if len(filtered) == 0 {
-			continue
-		}
-		resCopy := make(map[string]interface{}, len(resMap))
-		for k, v := range resMap {
-			resCopy[k] = v
-		}
-		resCopy["methods"] = filtered
-		filteredRes[resName] = resCopy
-	}
-	result["resources"] = filteredRes
-	return result
-}
-
-// filterMethodsByStrictMode removes methods incompatible with the active strict mode.
-// Returns the original map unmodified when strict mode is off.
-func filterMethodsByStrictMode(methods map[string]interface{}, mode core.StrictMode) map[string]interface{} {
-	if !mode.IsActive() || methods == nil {
-		return methods
-	}
-	token := registry.IdentityToAccessToken(string(mode.ForcedIdentity()))
-	filtered := make(map[string]interface{}, len(methods))
-	for name, val := range methods {
-		m, ok := val.(map[string]interface{})
-		if !ok {
-			continue
-		}
-		tokens, _ := m["accessTokens"].([]interface{})
-		if tokens == nil {
-			filtered[name] = val
-			continue
-		}
-		for _, t := range tokens {
-			if ts, ok := t.(string); ok && ts == token {
-				filtered[name] = val
-				break
-			}
-		}
-	}
-	return filtered
+	switch re.Kind {
+	case apicatalog.ErrService:
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "Unknown service: %s", re.Subject).
+			WithHint("Available: %s", strings.Join(re.Candidates, ", "))
+	case apicatalog.ErrResource:
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "Unknown resource: %s", re.Subject).
+			WithHint("Available: %s", strings.Join(re.Candidates, ", "))
+	case apicatalog.ErrMethod:
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "Unknown method: %s", re.Subject).
+			WithHint("Available: %s", strings.Join(re.Candidates, ", "))
+	case apicatalog.ErrPath:
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "Unknown path: %s", re.Subject).
+			WithHint("Method %q exists but the trailing segments %q do not resolve", re.Method, re.Trailing)
+	}
+	return err
 }

cmd/schema/schema_test.go

@@ -4,11 +4,12 @@
 package schema
 
 import (
-	"bytes"
 	"encoding/json"
+	"errors"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 )
@@ -21,29 +22,46 @@ func TestSchemaCmd_FlagParsing(t *testing.T) {
 		gotOpts = opts
 		return nil
 	})
-	cmd.SetArgs([]string{"calendar.events.list", "--format", "pretty"})
+	cmd.SetArgs([]string{"calendar.events.list"})
 	err := cmd.Execute()
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	if gotOpts.Path != "calendar.events.list" {
-		t.Errorf("expected path calendar.events.list, got %s", gotOpts.Path)
-	}
-	if gotOpts.Format != "pretty" {
-		t.Errorf("expected Format=pretty, got %s", gotOpts.Format)
+	if len(gotOpts.Args) != 1 || gotOpts.Args[0] != "calendar.events.list" {
+		t.Errorf("expected args [calendar.events.list], got %v", gotOpts.Args)
 	}
 }
 
-func TestSchemaCmd_NoArgs_Pretty(t *testing.T) {
-	f, stdout, _, _ := cmdutil.TestFactory(t, nil)
-
-	cmd := NewCmdSchema(f, nil)
-	cmd.SetArgs([]string{"--format", "pretty"})
-	if err := cmd.Execute(); err != nil {
-		t.Fatalf("unexpected error: %v", err)
+func TestSchemaCmd_OutputFlagsAcceptedForCompat(t *testing.T) {
+	// Agents are habituated to --format/--json/--as from api/service commands.
+	// schema must accept them without erroring and always emit the JSON envelope —
+	// its output is structured JSON and identity-independent, so the values have
+	// no effect.
+	argSets := [][]string{
+		{"--format", "json"},
+		{"--format", "pretty"},
+		{"--format", "table"}, // no table rendering for a nested schema -> JSON
+		{"--format", "csv"},
+		{"--json"},
+		{"--json", "--format", "ndjson"},
+		{"--as", "user"},
+		{"--as", "bot"},
+		{"--as", "user", "--json"},
 	}
-	if !strings.Contains(stdout.String(), "Available services") {
-		t.Error("expected service list in pretty mode")
+	for _, extra := range argSets {
+		f, stdout, _, _ := cmdutil.TestFactory(t, nil)
+		cmd := NewCmdSchema(f, nil)
+		cmd.SetArgs(append([]string{"im.images.create"}, extra...))
+		if err := cmd.Execute(); err != nil {
+			t.Fatalf("args %v should be accepted, got error: %v", extra, err)
+		}
+		var env map[string]interface{}
+		if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
+			t.Fatalf("args %v: output is not a JSON envelope: %v\n%s", extra, err, stdout.String())
+		}
+		if env["name"] != "im images create" {
+			t.Errorf("args %v: expected the im images create envelope, got name=%v", extra, env["name"])
+		}
 	}
 }
 
@@ -51,7 +69,7 @@ func TestSchemaCmd_NoArgs_JSON_IsArray(t *testing.T) {
 	f, stdout, _, _ := cmdutil.TestFactory(t, nil)
 
 	cmd := NewCmdSchema(f, nil)
-	cmd.SetArgs([]string{}) // default --format json
+	cmd.SetArgs([]string{})
 	if err := cmd.Execute(); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -76,7 +94,7 @@ func TestSchemaCmd_JSONIsEnvelope(t *testing.T) {
 	f, stdout, _, _ := cmdutil.TestFactory(t, nil)
 
 	cmd := NewCmdSchema(f, nil)
-	cmd.SetArgs([]string{"im.images.create", "--format", "json"})
+	cmd.SetArgs([]string{"im.images.create"})
 	if err := cmd.Execute(); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
@@ -179,23 +197,6 @@ func TestSchemaCmd_NoYesForReadRisk(t *testing.T) {
 	}
 }
 
-func TestSchemaCmd_PrettyUnchanged_KeyTextPresent(t *testing.T) {
-	f, stdout, _, _ := cmdutil.TestFactory(t, nil)
-
-	cmd := NewCmdSchema(f, nil)
-	cmd.SetArgs([]string{"im.images.create", "--format", "pretty"})
-	if err := cmd.Execute(); err != nil {
-		t.Fatalf("unexpected error: %v", err)
-	}
-	out := stdout.String()
-	// Existing pretty rendering surfaces these markers — they must still appear
-	for _, want := range []string{"Parameters:", "Response:", "Identity:", "Scopes:", "CLI:"} {
-		if !strings.Contains(out, want) {
-			t.Errorf("pretty output missing marker %q", want)
-		}
-	}
-}
-
 func TestSchemaCmd_UnknownService(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
@@ -210,170 +211,47 @@ func TestSchemaCmd_UnknownService(t *testing.T) {
 	if !strings.Contains(err.Error(), "Unknown service") {
 		t.Errorf("expected 'Unknown service' error, got: %v", err)
 	}
-}
-
-func TestPrintMethodDetail_FileUpload(t *testing.T) {
-	spec := map[string]interface{}{
-		"name":        "im",
-		"servicePath": "/open-apis/im/v1",
+	var ve *errs.ValidationError
+	if !errors.As(err, &ve) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
 	}
-	method := map[string]interface{}{
-		"path":        "images",
-		"httpMethod":  "POST",
-		"description": "Upload an image",
-		"requestBody": map[string]interface{}{
-			"image_type": map[string]interface{}{
-				"type":     "string",
-				"required": true,
-			},
-			"image": map[string]interface{}{
-				"type":     "file",
-				"required": true,
-			},
-		},
-		"accessTokens": []interface{}{"user", "tenant"},
+	if ve.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("Subtype = %q, want %q", ve.Subtype, errs.SubtypeInvalidArgument)
 	}
-
-	var buf bytes.Buffer
-	printMethodDetail(&buf, spec, "images", "create", method)
-	out := buf.String()
-
-	if !strings.Contains(out, "file upload") {
-		t.Errorf("expected 'file upload' marker in output, got:\n%s", out)
-	}
-	if !strings.Contains(out, "--file") {
-		t.Errorf("expected '--file' in output, got:\n%s", out)
-	}
-	if !strings.Contains(out, `"image"`) {
-		t.Errorf("expected default field name 'image' in output, got:\n%s", out)
-	}
-	if !strings.Contains(out, "--file <path>") {
-		t.Errorf("expected CLI example with --file <path>, got:\n%s", out)
+	if !strings.Contains(ve.Hint, "Available:") {
+		t.Errorf("expected hint listing available services, got: %q", ve.Hint)
 	}
 }
 
-func TestPrintMethodDetail_NoFileUpload(t *testing.T) {
-	spec := map[string]interface{}{
-		"name":        "calendar",
-		"servicePath": "/open-apis/calendar/v4",
-	}
-	method := map[string]interface{}{
-		"path":        "events",
-		"httpMethod":  "POST",
-		"description": "Create an event",
-		"requestBody": map[string]interface{}{
-			"summary": map[string]interface{}{
-				"type":     "string",
-				"required": true,
-			},
-		},
-	}
+// TestSchemaCmd_UnknownMethod_TypedValidation pins the typed envelope for the
+// JSON-mode unknown-method path: *errs.ValidationError with
+// subtype invalid_argument and a hint listing the available methods.
+func TestSchemaCmd_UnknownMethod_TypedValidation(t *testing.T) {
+	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
 
-	var buf bytes.Buffer
-	printMethodDetail(&buf, spec, "events", "create", method)
-	out := buf.String()
-
-	if strings.Contains(out, "file upload") {
-		t.Errorf("did not expect 'file upload' marker for non-file method, got:\n%s", out)
+	cmd := NewCmdSchema(f, nil)
+	cmd.SetArgs([]string{"calendar.events.nonexistent_method"})
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error for unknown method")
 	}
-	if strings.Contains(out, "--file") {
-		t.Errorf("did not expect '--file' for non-file method, got:\n%s", out)
+	var ve *errs.ValidationError
+	if !errors.As(err, &ve) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+	}
+	if ve.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("Subtype = %q, want %q", ve.Subtype, errs.SubtypeInvalidArgument)
+	}
+	if !strings.Contains(err.Error(), "Unknown method") {
+		t.Errorf("expected 'Unknown method' error, got: %v", err)
+	}
+	if !strings.Contains(ve.Hint, "Available:") {
+		t.Errorf("expected hint listing available methods, got: %q", ve.Hint)
 	}
 }
 
-func TestHasFileFields(t *testing.T) {
-	tests := []struct {
-		name       string
-		method     map[string]interface{}
-		wantBool   bool
-		wantFields []string
-	}{
-		{
-			name: "has file field",
-			method: map[string]interface{}{
-				"requestBody": map[string]interface{}{
-					"image": map[string]interface{}{"type": "file"},
-					"name":  map[string]interface{}{"type": "string"},
-				},
-			},
-			wantBool:   true,
-			wantFields: []string{"image"},
-		},
-		{
-			name: "no file field",
-			method: map[string]interface{}{
-				"requestBody": map[string]interface{}{
-					"name": map[string]interface{}{"type": "string"},
-				},
-			},
-			wantBool:   false,
-			wantFields: nil,
-		},
-		{
-			name:       "no requestBody",
-			method:     map[string]interface{}{},
-			wantBool:   false,
-			wantFields: nil,
-		},
-	}
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			got, names := hasFileFields(tt.method)
-			if got != tt.wantBool {
-				t.Errorf("hasFileFields() = %v, want %v", got, tt.wantBool)
-			}
-			if tt.wantFields == nil && names != nil {
-				t.Errorf("expected nil names, got %v", names)
-			}
-			if tt.wantFields != nil && len(names) != len(tt.wantFields) {
-				t.Errorf("expected %d field names, got %d", len(tt.wantFields), len(names))
-			}
-		})
-	}
-}
-
-func TestCompleteSchemaPathForSpec(t *testing.T) {
-	resources := map[string]interface{}{
-		"records": map[string]interface{}{
-			"methods": map[string]interface{}{
-				"create": map[string]interface{}{},
-				"list":   map[string]interface{}{},
-			},
-		},
-		"record_permissions": map[string]interface{}{
-			"methods": map[string]interface{}{
-				"get": map[string]interface{}{},
-			},
-		},
-	}
-
-	got := completeSchemaPathForSpec("base", resources, "records.cr")
-	if len(got) != 1 || got[0] != "base.records.create" {
-		t.Fatalf("completions = %v, want [base.records.create]", got)
-	}
-
-	got = completeSchemaPathForSpec("base", resources, "record")
-	if len(got) != 2 || got[0] != "base.record_permissions." || got[1] != "base.records." {
-		t.Fatalf("resource completions = %v", got)
-	}
-}
-
-func TestFilterSpecByStrictMode_RemovesIncompatibleMethodsFromCompletionSource(t *testing.T) {
-	spec := map[string]interface{}{
-		"resources": map[string]interface{}{
-			"records": map[string]interface{}{
-				"methods": map[string]interface{}{
-					"list":   map[string]interface{}{"accessTokens": []interface{}{"tenant"}},
-					"create": map[string]interface{}{"accessTokens": []interface{}{"user"}},
-				},
-			},
-		},
-	}
-
-	filtered := filterSpecByStrictMode(spec, core.StrictModeBot)
-	resources, _ := filtered["resources"].(map[string]interface{})
-	got := completeSchemaPathForSpec("base", resources, "records.")
-	if len(got) != 1 || got[0] != "base.records.list" {
-		t.Fatalf("filtered completions = %v, want [base.records.list]", got)
-	}
-}
+// Completion candidate generation (dotted + space forms, strict-mode filtering,
+// dotted-resource handling) now lives in internal/apicatalog and is covered by
+// apicatalog's TestComplete. cmd/schema only adapts catalog.Complete to cobra.

cmd/service/affordance.go

@@ -0,0 +1,80 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/larksuite/cli/internal/meta"
+)
+
+// methodLong composes a method command's long help in one place: the
+// description, the affordance guidance block (when the method has one), the
+// pointer to the full schema, and the params-only addendum (params whose flag
+// name is taken — paramFlagBinder.paramsOnlyHelp, "" when none). Affordance
+// sits near the top so an agent sees when-to-use and few-shot examples before
+// the flag list.
+func methodLong(description, affordance, schemaPath, paramsOnly string) string {
+	var b strings.Builder
+	b.WriteString(description)
+	if affordance != "" {
+		b.WriteString("\n\n")
+		b.WriteString(affordance)
+	}
+	fmt.Fprintf(&b, "\n\nView parameter definitions before calling:\n  lark-cli schema %s", schemaPath)
+	b.WriteString(paramsOnly)
+	return b.String()
+}
+
+// renderAffordance renders a method's affordance as a help block — when to use,
+// prerequisites, and (most importantly for agents) few-shot Examples — or "" when
+// the method carries no affordance. It reads the single typed model
+// (meta.Method.ParsedAffordance) so the help and the envelope agree on shape.
+func renderAffordance(m meta.Method) string {
+	a, ok := m.ParsedAffordance()
+	if !ok {
+		return ""
+	}
+
+	var b strings.Builder
+	bullets := func(title string, items []string) {
+		var nonEmpty []string
+		for _, it := range items {
+			if strings.TrimSpace(it) != "" {
+				nonEmpty = append(nonEmpty, it)
+			}
+		}
+		if len(nonEmpty) == 0 {
+			return
+		}
+		fmt.Fprintf(&b, "%s:\n", title)
+		for _, it := range nonEmpty {
+			fmt.Fprintf(&b, "  • %s\n", it)
+		}
+	}
+
+	bullets("When to use", a.UseWhen)
+	bullets("Avoid when", a.DoNotUseWhen)
+	bullets("Prerequisites", a.Prerequisites)
+	if len(a.Examples) > 0 {
+		var lines []string
+		for _, ex := range a.Examples {
+			if ex.Command == "" {
+				continue
+			}
+			if ex.Description != "" {
+				lines = append(lines, fmt.Sprintf("  • %s\n      %s", ex.Description, ex.Command))
+			} else {
+				lines = append(lines, fmt.Sprintf("  • %s", ex.Command))
+			}
+		}
+		if len(lines) > 0 {
+			fmt.Fprintf(&b, "Examples:\n%s\n", strings.Join(lines, "\n"))
+		}
+	}
+	bullets("Related", a.Related)
+
+	return strings.TrimRight(b.String(), "\n")
+}

cmd/service/affordance_test.go

@@ -0,0 +1,72 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/meta"
+)
+
+func TestRenderAffordance(t *testing.T) {
+	raw := json.RawMessage(`{
+		"use_when": ["发送文本消息"],
+		"do_not_use_when": ["群已解散"],
+		"prerequisites": ["已获取 chat_id"],
+		"examples": [
+			{"description":"发一条文本","command":"lark-cli im messages create --params '{...}'"},
+			{"command":"lark-cli im messages list"},
+			{"description":"no command, skipped","command":""}
+		],
+		"related": ["im.messages.list"]
+	}`)
+	out := renderAffordance(meta.Method{Affordance: raw})
+	for _, want := range []string{
+		"When to use:", "发送文本消息",
+		"Avoid when:", "群已解散",
+		"Prerequisites:", "已获取 chat_id",
+		"Examples:", "发一条文本", "lark-cli im messages create --params '{...}'",
+		"lark-cli im messages list", // example with no description -> bare command line
+		"Related:", "im.messages.list",
+	} {
+		if !strings.Contains(out, want) {
+			t.Errorf("renderAffordance missing %q in:\n%s", want, out)
+		}
+	}
+	if strings.Contains(out, "no command, skipped") {
+		t.Errorf("example with empty command should be skipped:\n%s", out)
+	}
+
+	// Absent or empty affordance renders nothing (so methods without an overlay
+	// add nothing to their help).
+	if renderAffordance(meta.Method{}) != "" || renderAffordance(meta.Method{Affordance: json.RawMessage(`{}`)}) != "" {
+		t.Error("empty affordance should render nothing")
+	}
+}
+
+func TestServiceMethod_AffordanceInLong(t *testing.T) {
+	withAff := map[string]interface{}{
+		"path": "messages", "httpMethod": "POST", "description": "发送消息",
+		"affordance": map[string]interface{}{
+			"examples": []interface{}{
+				map[string]interface{}{"description": "发文本", "command": "lark-cli im messages create ..."},
+			},
+		},
+	}
+	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(withAff), "create", "messages", nil)
+	if !strings.Contains(cmd.Long, "Examples:") || !strings.Contains(cmd.Long, "lark-cli im messages create ...") {
+		t.Errorf("affordance examples not in command Long:\n%s", cmd.Long)
+	}
+
+	// A method with no affordance adds no guidance block.
+	plain := map[string]interface{}{"path": "x", "httpMethod": "GET", "description": "d"}
+	cmd2 := NewCmdServiceMethod(f, imSpec(), meta.FromMap(plain), "list", "x", nil)
+	if strings.Contains(cmd2.Long, "Examples:") {
+		t.Errorf("no-affordance method should have no Examples in Long:\n%s", cmd2.Long)
+	}
+}

cmd/service/flaggroups.go

@@ -0,0 +1,211 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+// Flag annotations the grouped service-method help renderer reads.
+const (
+	flagGroupAnnotation = "lark_flag_group" // display group key
+	flagSubAnnotation   = "lark_flag_sub"   // "required" | "optional" within API Parameters
+	flagNoteAnnotation  = "lark_flag_note"  // extra lines shown indented under a flag
+
+	groupParams    = "params"    // typed path/query flags
+	groupBody      = "body"      // --data, --file
+	groupRaw       = "raw"       // --params
+	groupExecution = "execution" // --as/--dry-run/--page-*/--yes
+	groupOutput    = "output"    // --output/--format/--jq
+
+	subRequired = "required"
+	subOptional = "optional"
+)
+
+// serviceFlagGroupOrder is the display order + titles of the flag groups. API
+// Parameters carries only typed path/query flags; raw --params, request body and
+// execution/output controls each get their own group so an agent can tell the
+// distinct input kinds apart.
+var serviceFlagGroupOrder = []struct{ key, title string }{
+	{groupParams, "API Parameters"},
+	{groupBody, "Request Body"},
+	{groupRaw, "Raw Parameter Input"},
+	{groupExecution, "Execution"},
+	{groupOutput, "Output"},
+}
+
+// applyGroupedUsage installs the grouped usage renderer on a service method
+// cmd: local flags via the grouped renderer instead of cobra's flat Flags:
+// list; global (inherited) flags and the Risk/Tips sections appended by the
+// root help func are unaffected. Rendered by hand rather than via
+// cmd.SetUsageTemplate: cobra lazy-links text/template on the first
+// SetUsageTemplate call, whose executor reaches reflect.Value.MethodByName —
+// that disables the linker's method-level dead-code elimination and costs
+// ~19 MB of binary size.
+func applyGroupedUsage(cmd *cobra.Command) {
+	cmd.SetUsageFunc(func(c *cobra.Command) error {
+		w := c.OutOrStderr()
+		fmt.Fprintf(w, "Usage:\n  %s\n", c.UseLine())
+		if c.HasAvailableLocalFlags() {
+			fmt.Fprintf(w, "\n%s\n", renderServiceFlagGroups(c))
+		}
+		if c.HasAvailableInheritedFlags() {
+			fmt.Fprintf(w, "\nGlobal Flags:\n%s\n", strings.TrimRight(c.InheritedFlags().FlagUsages(), " \t\n"))
+		}
+		return nil
+	})
+}
+
+func annotate(f *pflag.Flag, key string, vals []string) {
+	if f.Annotations == nil {
+		f.Annotations = map[string][]string{}
+	}
+	f.Annotations[key] = vals
+}
+
+// tagFlagGroup records a flag's display group (no-op if the flag is absent).
+func tagFlagGroup(fs *pflag.FlagSet, name, group string) {
+	if f := fs.Lookup(name); f != nil {
+		annotate(f, flagGroupAnnotation, []string{group})
+	}
+}
+
+func annotationOf(f *pflag.Flag, key string) []string {
+	if f.Annotations != nil {
+		return f.Annotations[key]
+	}
+	return nil
+}
+
+func flagGroupOf(f *pflag.Flag) string {
+	if v := annotationOf(f, flagGroupAnnotation); len(v) > 0 {
+		return v[0]
+	}
+	return ""
+}
+
+func flagSubOf(f *pflag.Flag) string {
+	if v := annotationOf(f, flagSubAnnotation); len(v) > 0 {
+		return v[0]
+	}
+	return ""
+}
+
+// renderServiceFlagGroups renders the command's local flags into ordered,
+// titled groups; the API Parameters group is further split into Required /
+// Optional. It is the body of the usage func applyGroupedUsage installs.
+func renderServiceFlagGroups(cmd *cobra.Command) string {
+	var b strings.Builder
+	seen := map[*pflag.Flag]bool{}
+	for _, g := range serviceFlagGroupOrder {
+		flags := groupFlags(cmd, g.key, seen)
+		if len(flags) == 0 {
+			continue
+		}
+		fmt.Fprintf(&b, "%s:\n", g.title)
+		if g.key == groupParams {
+			writeSection(&b, "  Required:", subFlags(flags, subRequired))
+			writeSection(&b, "  Optional:", subFlags(flags, subOptional))
+		} else {
+			writeSection(&b, "", flags)
+		}
+		fmt.Fprintln(&b)
+	}
+	// Anything untagged (e.g. -h/--help) goes last under "Other".
+	var other []*pflag.Flag
+	cmd.LocalFlags().VisitAll(func(f *pflag.Flag) {
+		if f.Hidden || seen[f] {
+			return
+		}
+		other = append(other, f)
+	})
+	if len(other) > 0 {
+		fmt.Fprintln(&b, "Other:")
+		writeSection(&b, "", other)
+	}
+	return strings.TrimRight(b.String(), "\n")
+}
+
+// groupFlags returns the visible local flags tagged with group key, marking them
+// seen so the trailing "Other" bucket only catches genuinely untagged flags.
+func groupFlags(cmd *cobra.Command, key string, seen map[*pflag.Flag]bool) []*pflag.Flag {
+	var flags []*pflag.Flag
+	cmd.LocalFlags().VisitAll(func(f *pflag.Flag) {
+		if f.Hidden || flagGroupOf(f) != key {
+			return
+		}
+		flags = append(flags, f)
+		seen[f] = true
+	})
+	return flags
+}
+
+func subFlags(flags []*pflag.Flag, sub string) []*pflag.Flag {
+	var out []*pflag.Flag
+	for _, f := range flags {
+		s := flagSubOf(f)
+		// Untagged subgroup defaults to Optional so nothing is dropped.
+		if s == sub || (s == "" && sub == subOptional) {
+			out = append(out, f)
+		}
+	}
+	return out
+}
+
+// writeSection prints an optional (sub)header and the flags, aligned in a
+// column, each flag row followed by its note lines indented under the usage.
+func writeSection(b *strings.Builder, header string, flags []*pflag.Flag) {
+	if len(flags) == 0 {
+		return
+	}
+	if header != "" {
+		fmt.Fprintf(b, "%s\n", header)
+	}
+	specs := make([]string, len(flags))
+	maxSpec := 0
+	for i, f := range flags {
+		specs[i] = flagSpec(f)
+		if len(specs[i]) > maxSpec {
+			maxSpec = len(specs[i])
+		}
+	}
+	for i, f := range flags {
+		_, usage := pflag.UnquoteUsage(f)
+		if showsDefault(f) {
+			usage += fmt.Sprintf(" (default %s)", f.DefValue)
+		}
+		fmt.Fprintf(b, "%-*s   %s\n", maxSpec, specs[i], strings.TrimSpace(usage))
+		for _, note := range annotationOf(f, flagNoteAnnotation) {
+			fmt.Fprintf(b, "%*s%s\n", maxSpec+3+4, "", note)
+		}
+	}
+}
+
+// flagSpec is pflag's "      --name type" / "  -x, --name type" left column.
+func flagSpec(f *pflag.Flag) string {
+	typeName, _ := pflag.UnquoteUsage(f)
+	spec := "      --" + f.Name
+	if f.Shorthand != "" && f.ShorthandDeprecated == "" {
+		spec = "  -" + f.Shorthand + ", --" + f.Name
+	}
+	if typeName != "" {
+		spec += " " + typeName
+	}
+	return spec
+}
+
+// showsDefault mirrors pflag's "non-zero default" rule for the flag types these
+// commands use, so the grouped rendering shows the same "(default x)" hints as
+// cobra's flat list.
+func showsDefault(f *pflag.Flag) bool {
+	switch f.DefValue {
+	case "", "0", "false", "[]":
+		return false
+	}
+	return true
+}

cmd/service/flaggroups_test.go

@@ -0,0 +1,115 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/meta"
+)
+
+func TestServiceFlagGroups_AgentContract(t *testing.T) {
+	method := map[string]interface{}{
+		"path":       "chats/:chat_id/members",
+		"httpMethod": "POST",
+		"parameters": map[string]interface{}{
+			"chat_id": map[string]interface{}{"type": "string", "location": "path", "required": true},
+			"member_id_type": map[string]interface{}{
+				"type": "string", "location": "query",
+				"options": []interface{}{
+					map[string]interface{}{"value": "open_id", "description": "以 open_id 标识用户"},
+					map[string]interface{}{"value": "user_id", "description": "以 user_id 标识用户"},
+				},
+			},
+		},
+		// Documented body field -> --data belongs under Request Body.
+		"requestBody": map[string]interface{}{
+			"id_list": map[string]interface{}{"type": "list", "required": true},
+		},
+	}
+	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(method), "create", "chat.members", nil)
+	out := renderServiceFlagGroups(cmd)
+
+	idx := func(s string) int { return strings.Index(out, s) }
+
+	// Section order: API Parameters → Request Body → Raw Parameter Input → Execution → Output.
+	iParams, iBody, iRaw, iExec, iOut := idx("API Parameters:"), idx("Request Body:"), idx("Raw Parameter Input:"), idx("Execution:"), idx("Output:")
+	for name, i := range map[string]int{"API Parameters": iParams, "Request Body": iBody, "Raw Parameter Input": iRaw, "Execution": iExec, "Output": iOut} {
+		if i < 0 {
+			t.Fatalf("missing section %q in:\n%s", name, out)
+		}
+	}
+	if !(iParams < iBody && iBody < iRaw && iRaw < iExec && iExec < iOut) {
+		t.Errorf("section order wrong:\n%s", out)
+	}
+
+	// Required/Optional subsections under API Parameters.
+	if i := idx("  Required:"); i < iParams || i > iBody {
+		t.Errorf("Required subsection misplaced:\n%s", out)
+	}
+	if i := idx("  Optional:"); i < iParams || i > iBody {
+		t.Errorf("Optional subsection misplaced:\n%s", out)
+	}
+
+	// Typed flags are API Parameters; required path flag under Required, enum
+	// flag under Optional with an inline "enum: ..." (not multi-line meanings).
+	if i := idx("--chat-id"); i < iParams || i > iBody {
+		t.Errorf("--chat-id not under API Parameters:\n%s", out)
+	}
+	if !strings.Contains(out, "chat_id, required") {
+		t.Errorf("typed flag help format wrong:\n%s", out)
+	}
+	if !strings.Contains(out, "enum: open_id=以 open_id 标识用户|user_id=以 user_id 标识用户") {
+		t.Errorf("expected compact enum value=meaning inline:\n%s", out)
+	}
+
+	// --data is Request Body; --params is Raw Parameter Input (NOT API Parameters)
+	// and carries the precedence rule.
+	if i := idx("--data"); i < iBody || i > iRaw {
+		t.Errorf("--data not under Request Body:\n%s", out)
+	}
+	if i := idx("--params"); i < iRaw || i > iExec {
+		t.Errorf("--params not under Raw Parameter Input:\n%s", out)
+	}
+	if !strings.Contains(out, "typed flags override matching keys in --params") {
+		t.Errorf("missing --params precedence rule:\n%s", out)
+	}
+
+	// Control flags land in Execution/Output.
+	if i := idx("--dry-run"); i < iExec || i > iOut {
+		t.Errorf("--dry-run not under Execution:\n%s", out)
+	}
+	if idx("--format") < iOut {
+		t.Errorf("--format not under Output:\n%s", out)
+	}
+
+	// The usage template is wired to the grouped renderer (no flat Flags: list).
+	if u := cmd.UsageString(); !strings.Contains(u, "API Parameters:") || strings.Contains(u, "\nFlags:\n") {
+		t.Errorf("usage template not grouped:\n%s", u)
+	}
+}
+
+// TestServiceFlagGroups_UndocumentedBodyIsRaw: a POST with no documented body
+// fields still offers --data (escape hatch) but must NOT imply a declared body —
+// it goes under Raw Parameter Input, not "Request Body".
+func TestServiceFlagGroups_UndocumentedBodyIsRaw(t *testing.T) {
+	method := map[string]interface{}{"path": "things/do", "httpMethod": "POST"} // POST, no requestBody, no params
+	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(method), "do", "things", nil)
+	out := renderServiceFlagGroups(cmd)
+
+	if strings.Contains(out, "Request Body:") {
+		t.Errorf("undocumented body must not render a Request Body section:\n%s", out)
+	}
+	iRaw, iData := strings.Index(out, "Raw Parameter Input:"), strings.Index(out, "--data")
+	if iRaw < 0 || iData < iRaw {
+		t.Errorf("--data not under Raw Parameter Input:\n%s", out)
+	}
+	if !strings.Contains(out, "no documented fields") {
+		t.Errorf("--data should be labeled a raw escape hatch:\n%s", out)
+	}
+}

cmd/service/paramflags.go

@@ -0,0 +1,166 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/meta"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+type boundParamFlag struct {
+	field meta.Field
+	read  func() interface{}
+}
+
+// paramsOnlyField is a path/query parameter that got no typed flag because its
+// kebab name is already taken by another flag (a standard flag like --format, or
+// a root persistent flag). It stays reachable via --params; the binder keeps it,
+// with the flag that claimed the name, so --help can show the exact --params form
+// and steer the reader off the wrong flag.
+type paramsOnlyField struct {
+	field   meta.Field
+	claimed *pflag.Flag
+}
+
+// paramFlagBinder owns one service method's generated typed param flags: it
+// registers them (kind, help, enum completion, reserved-name skip) and applies
+// the --params overlay, where a changed typed flag overrides its key in the
+// --params JSON. Holding the field<->flag binding here keeps the request builder
+// from re-deriving which flags map to which param keys.
+type paramFlagBinder struct {
+	bound      []boundParamFlag
+	paramsOnly []paramsOnlyField
+}
+
+// newParamFlagBinder registers one typed kebab flag per path/query parameter on
+// cmd and returns a binder for the --params overlay. A name already taken by
+// another flag is skipped — pflag panics on a local duplicate and a generated
+// flag would silently shadow a persistent one — and recorded as paramsOnly so
+// the parameter stays reachable (and discoverable) via --params. The taken set
+// is derived, not hand-listed: local flags (the standard set, registered before
+// this runs) via cmd, the lazily-added --help materialized here, and the root's
+// persistent flags via reserved (nil for direct callers that have no root).
+func newParamFlagBinder(cmd *cobra.Command, params []meta.Field, reserved *pflag.FlagSet) *paramFlagBinder {
+	cmd.InitDefaultHelpFlag() // materialize --help/-h so the local guard below sees it
+	b := &paramFlagBinder{}
+	for _, f := range params {
+		name := f.FlagName()
+		if claimed := flagClaiming(cmd, reserved, name); claimed != nil {
+			b.paramsOnly = append(b.paramsOnly, paramsOnlyField{field: f, claimed: claimed})
+			continue
+		}
+		read := registerTypedFlag(cmd.Flags(), name, f.CanonicalType(), paramFlagUsage(f))
+		if values := enumStrings(f.EnumValues()); len(values) > 0 {
+			cmdutil.RegisterFlagCompletion(cmd, name, func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
+				return values, cobra.ShellCompDirectiveNoFileComp
+			})
+		}
+		// Group as an API parameter and mark required/optional for the
+		// Required/Optional subsections of the grouped --help renderer.
+		if fl := cmd.Flags().Lookup(name); fl != nil {
+			annotate(fl, flagGroupAnnotation, []string{groupParams})
+			sub := subOptional
+			if f.Required {
+				sub = subRequired
+			}
+			annotate(fl, flagSubAnnotation, []string{sub})
+		}
+		b.bound = append(b.bound, boundParamFlag{field: f, read: read})
+	}
+	return b
+}
+
+// flagClaiming returns the flag already occupying name (so a typed param flag
+// would collide), or nil when the name is free. It checks the command's own
+// flags (the standard set + the materialized --help) and the root's persistent
+// flags — so the reserved set is whatever is actually registered, never a
+// hand-kept list that drifts when a global flag is added.
+func flagClaiming(cmd *cobra.Command, reserved *pflag.FlagSet, name string) *pflag.Flag {
+	if fl := cmd.Flags().Lookup(name); fl != nil {
+		return fl
+	}
+	if reserved != nil {
+		return reserved.Lookup(name)
+	}
+	return nil
+}
+
+// paramsOnlyHelp renders the --help addendum for parameters that have no typed
+// flag, or "" when there are none. Per field: a copy-pasteable --params form,
+// the same fieldFacts a typed flag would show on its usage line, and what the
+// colliding flag actually does — so neither a human nor an agent sets the
+// wrong one (e.g. --format, which is the output format, not the API parameter).
+func (b *paramFlagBinder) paramsOnlyHelp() string {
+	if len(b.paramsOnly) == 0 {
+		return ""
+	}
+	var sb strings.Builder
+	sb.WriteString("\nParameters set via --params (no typed flag; the name is taken by another flag):\n")
+	for _, p := range b.paramsOnly {
+		name := p.field.Name
+		fmt.Fprintf(&sb, "  %s: --params '{%q: %s}'\n", name, name, paramExample(p.field))
+		for _, fact := range fieldFacts(p.field) {
+			fmt.Fprintf(&sb, "      %s\n", fact)
+		}
+		if p.claimed != nil {
+			fmt.Fprintf(&sb, "      do not use --%s (%s)\n", p.claimed.Name, p.claimed.Usage)
+		}
+	}
+	return sb.String()
+}
+
+// hasTypedFlag reports whether the binder registered a typed flag for the
+// param named name. False for params-only fields — a flag with the same kebab
+// name may exist (that's the collision), but it is not this param's input.
+// Nil-safe for direct buildServiceRequest callers that have no binder.
+func (b *paramFlagBinder) hasTypedFlag(name string) bool {
+	if b == nil {
+		return false
+	}
+	for _, pf := range b.bound {
+		if pf.field.Name == name {
+			return true
+		}
+	}
+	return false
+}
+
+// overlay lets an explicit typed flag override the same key in --params
+// (--params is the base). Only changed flags apply, so the --params-only path is
+// unchanged. A nil binder or cmd is a no-op.
+func (b *paramFlagBinder) overlay(cmd *cobra.Command, params map[string]interface{}) {
+	if b == nil || cmd == nil {
+		return
+	}
+	for _, pf := range b.bound {
+		if cmd.Flags().Changed(pf.field.FlagName()) {
+			params[pf.field.Name] = pf.read()
+		}
+	}
+}
+
+// registerTypedFlag registers one flag of the given canonical JSON-Schema kind
+// and returns a reader for its parsed value; the kind→pflag-type switch lives
+// only here.
+func registerTypedFlag(fs *pflag.FlagSet, name, kind, usage string) func() interface{} {
+	switch kind {
+	case "integer":
+		return flagReader(fs.Int(name, 0, usage))
+	case "boolean":
+		return flagReader(fs.Bool(name, false, usage))
+	case "array":
+		return flagReader(fs.StringArray(name, nil, usage))
+	default:
+		return flagReader(fs.String(name, "", usage))
+	}
+}
+
+func flagReader[T any](p *T) func() interface{} {
+	return func() interface{} { return *p }
+}

cmd/service/paramflags_test.go

@@ -0,0 +1,626 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/meta"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+// imChatMembersCreate: POST chats/{chat_id}/members with one path param and one
+// optional enum query param — the canonical case from the screenshot feedback.
+func imChatMembersCreate() meta.Method {
+	return meta.FromMap(map[string]interface{}{
+		"path":       "chats/{chat_id}/members",
+		"httpMethod": "POST",
+		"parameters": map[string]interface{}{
+			"chat_id": map[string]interface{}{
+				"type": "string", "location": "path", "required": true,
+			},
+			"member_id_type": map[string]interface{}{
+				"type": "string", "location": "query", "required": false,
+				"options": []interface{}{
+					map[string]interface{}{"value": "open_id"},
+					map[string]interface{}{"value": "user_id"},
+				},
+			},
+		},
+	})
+}
+
+func TestServiceMethod_TypedFlagRegistered(t *testing.T) {
+	f := &cmdutil.Factory{}
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+
+	if cmd.Flags().Lookup("chat-id") == nil {
+		t.Error("expected generated --chat-id flag for path param chat_id")
+	}
+	if cmd.Flags().Lookup("member-id-type") == nil {
+		t.Error("expected generated --member-id-type flag for query param member_id_type")
+	}
+}
+
+// A query param literally named "format" kebab-collides with the global
+// --format flag. Generation must skip it (never re-register, never panic) and
+// leave the standard --format flag intact.
+func TestServiceMethod_TypedFlagReservedCollisionSkipped(t *testing.T) {
+	method := map[string]interface{}{
+		"path":       "messages",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"format": map[string]interface{}{"type": "string", "location": "query"},
+		},
+	}
+
+	var cmd *cobra.Command
+	func() {
+		defer func() {
+			if r := recover(); r != nil {
+				t.Fatalf("flag generation panicked on reserved-name collision: %v", r)
+			}
+		}()
+		cmd = NewCmdServiceMethod(&cmdutil.Factory{}, imSpec(), meta.FromMap(method), "list", "messages", nil)
+	}()
+
+	fl := cmd.Flags().Lookup("format")
+	if fl == nil || fl.DefValue != "json" {
+		t.Fatalf("standard --format flag must be preserved, got %+v", fl)
+	}
+}
+
+func TestServiceMethod_TypedFlag_DrivesPathParam(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--chat-id", "oc_abc123", "--data", `{"id_list":["ou_x"]}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !strings.Contains(stdout.String(), "chats/oc_abc123/members") {
+		t.Errorf("expected URL with chat_id substituted from --chat-id, got:\n%s", stdout.String())
+	}
+}
+
+func TestServiceMethod_TypedFlag_DrivesQueryParam(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--chat-id", "oc_abc123", "--member-id-type", "open_id", "--data", `{}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "member_id_type") || !strings.Contains(out, "open_id") {
+		t.Errorf("expected query param member_id_type=open_id from flag, got:\n%s", out)
+	}
+}
+
+func TestServiceMethod_TypedFlag_AgreesWithParams(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--chat-id", "oc_abc123", "--params", `{"chat_id":"oc_abc123"}`, "--data", `{}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("same value via flag and --params should be accepted, got: %v", err)
+	}
+	if !strings.Contains(stdout.String(), "chats/oc_abc123/members") {
+		t.Errorf("expected URL with chat_id, got:\n%s", stdout.String())
+	}
+}
+
+// --params is the base; an explicit typed flag overrides the same key.
+func TestServiceMethod_TypedFlag_OverridesParams(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--chat-id", "oc_flag", "--params", `{"chat_id":"oc_params"}`, "--data", `{}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "chats/oc_flag/members") {
+		t.Errorf("expected --chat-id to override --params chat_id, got:\n%s", out)
+	}
+	if strings.Contains(out, "oc_params") {
+		t.Errorf("--params value should have been overridden by the flag, got:\n%s", out)
+	}
+}
+
+// Override works for a non-string (integer) param too, exercising the int
+// register/read path end to end.
+func TestServiceMethod_TypedFlag_IntegerOverridesParams(t *testing.T) {
+	method := map[string]interface{}{
+		"path":       "messages",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"page_size": map[string]interface{}{"type": "integer", "location": "query"},
+		},
+	}
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(method), "list", "messages", nil)
+	cmd.SetArgs([]string{"--page-size", "100", "--params", `{"page_size":5}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "page_size") || !strings.Contains(out, "100") {
+		t.Errorf("expected --page-size 100 to override --params page_size=5, got:\n%s", out)
+	}
+}
+
+// Regression: with no typed flags passed, behavior is byte-identical to today.
+func TestServiceMethod_TypedFlag_OnlyParamsStillWorks(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--params", `{"chat_id":"oc_abc123"}`, "--data", `{}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !strings.Contains(stdout.String(), "chats/oc_abc123/members") {
+		t.Errorf("expected URL with chat_id from --params, got:\n%s", stdout.String())
+	}
+}
+
+// Regression: --params null is valid JSON that unmarshals to a nil map. A typed
+// flag overlaying onto it must not panic (assignment to a nil map) — null is
+// treated as "no base params", with the flag value applied on top.
+func TestServiceMethod_TypedFlag_OverridesNullParams(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--chat-id", "oc_abc123", "--params", "null", "--data", `{}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("--params null with a typed flag should not error, got: %v", err)
+	}
+	if !strings.Contains(stdout.String(), "chats/oc_abc123/members") {
+		t.Errorf("expected chat_id from --chat-id over null --params, got:\n%s", stdout.String())
+	}
+}
+
+// Startup smoke test: registering every embedded method must not panic on a
+// generated-flag name collision (pflag panics on duplicate registration, which
+// would crash the whole CLI at startup), and a known path param must surface as
+// a typed flag end to end.
+func TestRegisterServiceCommands_GeneratesFlagsNoPanic(t *testing.T) {
+	root := &cobra.Command{Use: "lark-cli"}
+	f := &cmdutil.Factory{}
+
+	defer func() {
+		if r := recover(); r != nil {
+			t.Fatalf("registering all service commands panicked: %v", r)
+		}
+	}()
+	RegisterServiceCommands(root, f)
+
+	create, _, err := root.Find([]string{"im", "chat.members", "create"})
+	if err != nil {
+		t.Fatalf("im chat.members create not registered: %v", err)
+	}
+	if create.Flags().Lookup("chat-id") == nil {
+		t.Error("expected generated --chat-id flag on im chat.members create")
+	}
+}
+
+// Locks the boolean and array branches of bindParamFlag end to end (string and
+// integer are covered above): a bool flag yields true and a repeatable array
+// flag yields all its elements in the request.
+func TestServiceMethod_TypedFlag_BoolAndArrayKinds(t *testing.T) {
+	method := map[string]interface{}{
+		"path":       "items",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"with_deleted": map[string]interface{}{"type": "boolean", "location": "query"},
+			"ids":          map[string]interface{}{"type": "list", "location": "query"},
+		},
+	}
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(method), "list", "items", nil)
+	cmd.SetArgs([]string{"--with-deleted", "--ids", "a", "--ids", "b", "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	for _, want := range []string{"with_deleted", "true", "ids", "\"a\"", "\"b\""} {
+		if !strings.Contains(out, want) {
+			t.Errorf("expected dry-run output to contain %q, got:\n%s", want, out)
+		}
+	}
+}
+
+// Override (--params base, typed flag wins) is covered for string and integer
+// above; this locks the same semantics for the boolean and array kinds.
+func TestServiceMethod_TypedFlag_BoolAndArrayOverrideParams(t *testing.T) {
+	method := map[string]interface{}{
+		"path":       "items",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"with_deleted": map[string]interface{}{"type": "boolean", "location": "query"},
+			"ids":          map[string]interface{}{"type": "list", "location": "query"},
+		},
+	}
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(method), "list", "items", nil)
+	cmd.SetArgs([]string{
+		"--params", `{"with_deleted":false,"ids":["from_params"]}`,
+		"--with-deleted", "--ids", "a", "--ids", "b",
+		"--dry-run",
+	})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	for _, want := range []string{"with_deleted", "true", "\"a\"", "\"b\""} {
+		if !strings.Contains(out, want) {
+			t.Errorf("expected flag to override --params (want %q), got:\n%s", want, out)
+		}
+	}
+	if strings.Contains(out, "from_params") {
+		t.Errorf("--params array value should have been overridden by --ids, got:\n%s", out)
+	}
+}
+
+// A param whose kebab name collides with a global flag (here "format" vs the
+// global --format) gets no typed flag, but the collision is no longer silent:
+// non-colliding params still get flags, the global --format is untouched, and
+// --help shows the exact --params form and steers the reader off --format.
+func TestServiceMethod_ParamsOnly_HelpSteersToParams(t *testing.T) {
+	method := map[string]interface{}{
+		"path":       "things/{thing_id}",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"thing_id": map[string]interface{}{"type": "string", "location": "path", "required": true},
+			"format": map[string]interface{}{"type": "string", "location": "query", "min": "1", "max": "64", "description": "返回的消息体格式。", "options": []interface{}{
+				map[string]interface{}{"value": "full"},
+				map[string]interface{}{"value": "metadata"},
+			}},
+		},
+	}
+	cmd := NewCmdServiceMethod(&cmdutil.Factory{}, imSpec(), meta.FromMap(method), "get", "things", nil)
+
+	if cmd.Flags().Lookup("thing-id") == nil {
+		t.Error("non-colliding param should still get a typed --thing-id flag")
+	}
+	if fl := cmd.Flags().Lookup("format"); fl == nil || fl.DefValue != "json" {
+		t.Fatalf("global --format must be preserved (not shadowed), got %+v", fl)
+	}
+	for _, want := range []string{`--params '{"format"`, "返回的消息体格式", "full", "metadata", "min: 1, max: 64", "do not use --format"} {
+		if !strings.Contains(cmd.Long, want) {
+			t.Errorf("help should contain %q so the reader uses --params, not --format; got:\n%s", want, cmd.Long)
+		}
+	}
+}
+
+// The collision guard derives reserved names from the actual flag sets — local
+// flags plus the root's persistent flags passed in — so a future persistent
+// flag is covered with no hand-maintained list. Here a param named "profile"
+// (a root persistent flag) is skipped while a normal param is bound.
+func TestParamFlagBinder_PersistentFlagReserved(t *testing.T) {
+	cmd := &cobra.Command{Use: "x"}
+	reserved := pflag.NewFlagSet("root", pflag.ContinueOnError)
+	reserved.String("profile", "", "use a specific profile")
+
+	m := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+		"profile": map[string]interface{}{"type": "string", "location": "query"},
+		"id":      map[string]interface{}{"type": "string", "location": "path"},
+	}})
+	b := newParamFlagBinder(cmd, m.Params(), reserved)
+
+	if cmd.Flags().Lookup("id") == nil {
+		t.Error("non-colliding param should get a typed flag")
+	}
+	if cmd.Flags().Lookup("profile") != nil {
+		t.Error("param colliding with a reserved persistent flag must not be registered")
+	}
+	found := false
+	for _, p := range b.paramsOnly {
+		if p.field.Name == "profile" {
+			found = true
+		}
+	}
+	if !found {
+		t.Error("colliding param should be recorded for the --params help note")
+	}
+}
+
+// boolIntQueryMethod is the fixture for the zero-value semantics tests: one
+// boolean and one integer query param, where false and 0 are meaningful values.
+func boolIntQueryMethod(required bool) meta.Method {
+	return meta.FromMap(map[string]interface{}{
+		"path":       "items",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"with_deleted": map[string]interface{}{"type": "boolean", "location": "query", "required": required},
+			"page_size":    map[string]interface{}{"type": "integer", "location": "query"},
+		},
+	})
+}
+
+// Presence is intent: a typed flag is only overlaid when explicitly Changed,
+// so --flag=false / --flag 0 are real values and must be sent — not silently
+// dropped as "empty", which would let the API default win over an explicit
+// user choice.
+func TestServiceMethod_TypedFlag_ExplicitFalseAndZeroAreSent(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), boolIntQueryMethod(false), "list", "items", nil)
+	cmd.SetArgs([]string{"--with-deleted=false", "--page-size", "0", "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	for _, want := range []string{`"with_deleted": false`, `"page_size": 0`} {
+		if !strings.Contains(out, want) {
+			t.Errorf("explicit zero value must be sent (want %s), got:\n%s", want, out)
+		}
+	}
+}
+
+// An explicitly provided false satisfies a required query parameter — the
+// pre-flight must not report "missing" for a value the user just set.
+func TestServiceMethod_TypedFlag_ExplicitFalseSatisfiesRequired(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), boolIntQueryMethod(true), "list", "items", nil)
+	cmd.SetArgs([]string{"--with-deleted=false", "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("required param explicitly set to false must pass pre-flight, got: %v", err)
+	}
+	if !strings.Contains(stdout.String(), `"with_deleted": false`) {
+		t.Errorf("explicit false must be sent, got:\n%s", stdout.String())
+	}
+}
+
+// The same presence-is-intent rule applies to the --params JSON base: a key
+// deliberately written as false/0 is sent. (Zero values used to be silently
+// dropped; this locks the corrected semantics as the contract.)
+func TestServiceMethod_Params_JSONZeroValuesAreSent(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), boolIntQueryMethod(false), "list", "items", nil)
+	cmd.SetArgs([]string{"--params", `{"with_deleted":false,"page_size":0}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	for _, want := range []string{`"with_deleted": false`, `"page_size": 0`} {
+		if !strings.Contains(out, want) {
+			t.Errorf("--params zero value must be sent (want %s), got:\n%s", want, out)
+		}
+	}
+}
+
+// "" stays unusable: a required parameter fed an empty-string placeholder is
+// still caught by the friendly pre-flight error, not sent as an empty value.
+func TestServiceMethod_Params_EmptyStringStillMissing(t *testing.T) {
+	method := meta.FromMap(map[string]interface{}{
+		"path":       "items",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"user_id_type": map[string]interface{}{"type": "string", "location": "query", "required": true},
+		},
+	})
+	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), method, "list", "items", nil)
+	cmd.SetArgs([]string{"--params", `{"user_id_type":""}`, "--dry-run"})
+
+	err := cmd.Execute()
+	if err == nil || !strings.Contains(err.Error(), "missing required query parameter") {
+		t.Fatalf("empty string for a required param should still pre-flight error, got: %v", err)
+	}
+}
+
+// A declared optional query param fed "" is dropped (unusable value), not sent
+// as an empty query value — the declared-param loop owns the decision and the
+// undeclared passthrough must not resurrect it. Undeclared keys stay the
+// verbatim raw escape hatch.
+func TestServiceMethod_Params_EmptyOptionalDroppedUndeclaredKept(t *testing.T) {
+	method := meta.FromMap(map[string]interface{}{
+		"path":       "items",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"user_id_type": map[string]interface{}{"type": "string", "location": "query"},
+		},
+	})
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), method, "list", "items", nil)
+	cmd.SetArgs([]string{"--params", `{"user_id_type":"","custom_key":"v1"}`, "--dry-run"})
+
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	if strings.Contains(out, "user_id_type") {
+		t.Errorf("declared optional param with empty value must be dropped, got:\n%s", out)
+	}
+	if !strings.Contains(out, `"custom_key": "v1"`) {
+		t.Errorf("undeclared key must pass through verbatim, got:\n%s", out)
+	}
+}
+
+// min/max from the metadata surface on the typed flag's help line, in the same
+// vocabulary as the envelope's minimum/maximum.
+func TestParamFlagUsage_Bounds(t *testing.T) {
+	cases := []struct{ name, min, max, want string }{
+		{"both", "1", "100", "min: 1, max: 100"},
+		{"min only", "1", "", "min: 1"},
+		{"max only", "", "64", "max: 64"},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			fields := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+				"page_size": map[string]interface{}{"type": "integer", "location": "query", "min": tc.min, "max": tc.max},
+			}}).Params()
+			if usage := paramFlagUsage(fields[0]); !strings.Contains(usage, tc.want) {
+				t.Errorf("usage = %q, want contains %q", usage, tc.want)
+			}
+		})
+	}
+	t.Run("no bounds, no clause", func(t *testing.T) {
+		fields := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+			"page_token": map[string]interface{}{"type": "string", "location": "query"},
+		}}).Params()
+		if usage := paramFlagUsage(fields[0]); strings.Contains(usage, "min:") || strings.Contains(usage, "max:") {
+			t.Errorf("usage without bounds should not mention min/max, got %q", usage)
+		}
+	})
+}
+
+// The sanitized field description rides the help line — a bare name like
+// user_mailbox_id carries no meaning. The cut is at note separators (;), NOT
+// at sentence ends (。): the later sentence often holds the key affordance.
+func TestParamFlagUsage_Description(t *testing.T) {
+	fields := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+		"user_mailbox_id": map[string]interface{}{
+			"type": "string", "location": "path", "required": true,
+			"description": `用户邮箱地址。当使用用户身份访问时，可以输入"me"代表当前调用接口用户;后续补充说明不该出现`,
+		},
+	}}).Params()
+	usage := paramFlagUsage(fields[0])
+	if !strings.Contains(usage, `可以输入"me"代表当前调用接口用户`) {
+		t.Errorf("description must keep full sentences up to the note separator, got %q", usage)
+	}
+	if strings.Contains(usage, "补充说明") {
+		t.Errorf("text after the note separator must be cut, got %q", usage)
+	}
+
+	t.Run("long description truncated", func(t *testing.T) {
+		fields := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+			"x": map[string]interface{}{
+				"type": "string", "location": "query",
+				"description": strings.Repeat("长", 80),
+			},
+		}}).Params()
+		usage := paramFlagUsage(fields[0])
+		if !strings.Contains(usage, "...") {
+			t.Errorf("long description should be truncated with ellipsis, got %q", usage)
+		}
+		if strings.Contains(usage, strings.Repeat("长", 61)) {
+			t.Errorf("description should not exceed the cap, got %q", usage)
+		}
+	})
+
+	t.Run("trailing sentence punctuation trimmed", func(t *testing.T) {
+		fields := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+			"x": map[string]interface{}{
+				"type": "string", "location": "query", "description": "返回格式。",
+			},
+		}}).Params()
+		if usage := paramFlagUsage(fields[0]); strings.Contains(usage, "。.") {
+			t.Errorf("clause join must not double the punctuation, got %q", usage)
+		}
+	})
+}
+
+// Pins the convergence contract: the params-only addendum renders the SAME
+// fieldFacts list the typed flag's usage line joins inline — a fact added to
+// fieldFacts reaches both surfaces, and neither can drift over what a param's
+// help says (the addendum once rendered values-only enums and silently lacked
+// the API default).
+func TestParamHelp_BothSurfacesRenderFieldFacts(t *testing.T) {
+	f := meta.FromMap(map[string]interface{}{"parameters": map[string]interface{}{
+		"mode": map[string]interface{}{
+			"type": "string", "location": "query",
+			"description": "模式选择。",
+			"default":     "fast",
+			"min":         "1", "max": "8",
+			"options": []interface{}{
+				map[string]interface{}{"value": "fast", "description": "快速"},
+				map[string]interface{}{"value": "full"},
+			},
+		},
+	}}).Params()[0]
+
+	facts := fieldFacts(f)
+	if len(facts) != 4 { // description, enum, bounds, API default
+		t.Fatalf("fieldFacts = %v, want 4 facts", facts)
+	}
+	usage := paramFlagUsage(f)
+	help := (&paramFlagBinder{paramsOnly: []paramsOnlyField{{field: f}}}).paramsOnlyHelp()
+	for _, fact := range facts {
+		if !strings.Contains(usage, fact) {
+			t.Errorf("usage line missing fact %q: %q", fact, usage)
+		}
+		if !strings.Contains(help, fact) {
+			t.Errorf("params-only addendum missing fact %q:\n%s", fact, help)
+		}
+	}
+}
+
+// Bounds reach the registered flag's help end to end.
+func TestServiceMethod_TypedFlag_HelpShowsBounds(t *testing.T) {
+	method := meta.FromMap(map[string]interface{}{
+		"path":       "items",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"page_size": map[string]interface{}{"type": "integer", "location": "query", "min": "1", "max": "100", "default": "20"},
+		},
+	})
+	cmd := NewCmdServiceMethod(&cmdutil.Factory{}, imSpec(), method, "list", "items", nil)
+	fl := cmd.Flags().Lookup("page-size")
+	if fl == nil {
+		t.Fatal("expected generated --page-size flag")
+	}
+	if !strings.Contains(fl.Usage, "min: 1, max: 100") {
+		t.Errorf("flag usage should carry bounds, got %q", fl.Usage)
+	}
+}
+
+// The missing-required hint must name both recovery paths — the typed flag and
+// the --params fallback — so a reader who only knows one input style can
+// proceed without a round-trip through schema.
+func TestServiceMethod_MissingRequired_HintNamesFlagAndParams(t *testing.T) {
+	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), imChatMembersCreate(), "create", "chat.members", nil)
+	cmd.SetArgs([]string{"--data", `{"id_list":["ou_x"]}`, "--dry-run"})
+
+	err := cmd.Execute()
+	var ve *errs.ValidationError
+	if !errors.As(err, &ve) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+	}
+	for _, want := range []string{"--chat-id", `--params '{"chat_id": "<value>"}'`, "lark-cli schema im.chat.members.create"} {
+		if !strings.Contains(ve.Hint, want) {
+			t.Errorf("hint %q should contain %q", ve.Hint, want)
+		}
+	}
+}
+
+// A params-only required field (kebab name claimed by the standard --format
+// flag) has no typed flag to offer: the hint must give only the --params form,
+// never steer the reader to the colliding flag.
+func TestServiceMethod_MissingRequired_ParamsOnlyHintSkipsFlag(t *testing.T) {
+	method := meta.FromMap(map[string]interface{}{
+		"path":       "messages",
+		"httpMethod": "GET",
+		"parameters": map[string]interface{}{
+			"format": map[string]interface{}{"type": "string", "location": "query", "required": true},
+		},
+	})
+	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, imSpec(), method, "list", "messages", nil)
+	cmd.SetArgs([]string{"--dry-run"})
+
+	err := cmd.Execute()
+	var ve *errs.ValidationError
+	if !errors.As(err, &ve) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+	}
+	if !strings.Contains(ve.Hint, `--params '{"format": "<value>"}'`) {
+		t.Errorf("hint %q should carry the --params form", ve.Hint)
+	}
+	if strings.Contains(ve.Hint, "set --format") {
+		t.Errorf("hint %q must not steer to the colliding --format flag", ve.Hint)
+	}
+}

cmd/service/paramhelp.go

@@ -0,0 +1,162 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Help rendering for generated param flags. fieldFacts is the single list of
+// agent-relevant facts a param exposes; every help surface (the typed flag's
+// usage line, the params-only --params addendum) renders that one list, so the
+// surfaces cannot drift over which facts exist. Values come from the
+// meta.Field accessors, so nothing here depends on internal/schema.
+
+package service
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"github.com/larksuite/cli/internal/meta"
+	"github.com/larksuite/cli/internal/util"
+)
+
+// fieldFacts returns a param field's facts in display order, each as a compact
+// one-line clause: the sanitized description, the allowed enum values (with
+// meanings), the min/max constraint, and the API default. This is the ONE
+// place that decides what a param's help says — add a fact here (e.g. a future
+// deprecation marker) and every surface shows it. Unabridged prose and
+// per-option detail stay in `lark-cli schema`.
+func fieldFacts(f meta.Field) []string {
+	var facts []string
+	if d := sanitizeFieldDesc(f.Description); d != "" {
+		facts = append(facts, d)
+	}
+	if opts := f.EnumOptions(); len(opts) > 0 {
+		facts = append(facts, "enum: "+formatEnumInline(opts))
+	}
+	if b := formatBoundsInline(f); b != "" {
+		facts = append(facts, b)
+	}
+	if s := literalStr(f.CoercedDefault()); s != "" {
+		facts = append(facts, "API default: "+s)
+	}
+	return facts
+}
+
+// paramFlagUsage renders the typed param flag's help line:
+//
+//	<param_name>, required|optional[. <fact>]...
+//
+// It leads with the canonical underscore param name (the key this flag
+// overrides in --params) and required/optional, then joins the field's facts
+// inline.
+func paramFlagUsage(f meta.Field) string {
+	req := "optional"
+	if f.Required {
+		req = "required"
+	}
+	parts := append([]string{fmt.Sprintf("%s, %s", f.Name, req)}, fieldFacts(f)...)
+	return strings.Join(parts, ". ") + "."
+}
+
+// paramExample picks a concrete sample for a params-only field's --help snippet:
+// its first allowed enum value, else its example, else a placeholder.
+func paramExample(f meta.Field) string {
+	if vals := enumStrings(f.EnumValues()); len(vals) > 0 {
+		return fmt.Sprintf("%q", vals[0])
+	}
+	if s := literalStr(f.CoercedExample()); s != "" {
+		return fmt.Sprintf("%q", s)
+	}
+	return `"<value>"`
+}
+
+var markdownLinkRe = regexp.MustCompile(`\[([^\]]*)\]\([^)]*\)`)
+
+// inlineClause compresses metadata prose into one help clause: markdown links
+// keep their text, the clause cuts at the first rune in stops, whitespace
+// collapses, trailing punctuation goes — sentence enders (the clause join adds
+// its own) and connectors a cut can strand, like a colon introducing a list the
+// newline cut dropped — and the result caps at max runes. The two policies
+// below differ only in where they cut and how much they keep.
+func inlineClause(s, stops string, max int) string {
+	if s == "" {
+		return ""
+	}
+	s = markdownLinkRe.ReplaceAllString(s, "$1")
+	// Backquotes must go: pflag's UnquoteUsage treats a backquoted word in a
+	// flag's usage string as the flag's metavar, so a description like wiki
+	// space_id's "可替换为`my_library`" would render the flag as
+	// "--space-id my_library" instead of "--space-id string".
+	s = strings.ReplaceAll(s, "`", "")
+	if i := strings.IndexAny(s, stops); i >= 0 {
+		s = s[:i]
+	}
+	s = strings.Join(strings.Fields(s), " ")
+	s = strings.TrimRight(s, "。.：:，,、")
+	return util.TruncateStrWithEllipsis(s, max)
+}
+
+// sanitizeOptionDesc is the enum-option policy: many values share one line, so
+// keep only the first clause (cut at 。 too) and stay ultra-compact.
+func sanitizeOptionDesc(s string) string { return inlineClause(s, "。；;\n\r", 40) }
+
+// sanitizeFieldDesc is the field-description policy: one line per field, so
+// keep full sentences and cut only at note separators (meta_data appends
+// bullet notes after ;/；) — the later sentence often carries the key
+// affordance, e.g. user_mailbox_id's `可以输入"me"`.
+func sanitizeFieldDesc(s string) string { return inlineClause(s, "；;\n\r", 60) }
+
+// formatEnumInline renders allowed values for the help line: "v=meaning" when
+// the value carries a (sanitized, truncated) description — so opaque numeric
+// enums like succeed_type read as "0=…|1=…|2=…" — else just "v". Full meanings
+// live in the envelope's enumDescriptions / `lark-cli schema`.
+func formatEnumInline(opts []meta.EnumOption) string {
+	items := make([]string, len(opts))
+	for i, o := range opts {
+		if d := sanitizeOptionDesc(o.Description); d != "" {
+			items[i] = fmt.Sprintf("%v=%s", o.Value, d)
+		} else {
+			items[i] = fmt.Sprintf("%v", o.Value)
+		}
+	}
+	return strings.Join(items, "|")
+}
+
+// formatBoundsInline renders the field's min/max constraint ("min: 1, max:
+// 100", or the single declared side), or "" when the field declares neither.
+// The vocabulary matches the envelope's minimum/maximum, so help and `lark-cli
+// schema` state the same constraint.
+func formatBoundsInline(f meta.Field) string {
+	min, max := f.MinBound(), f.MaxBound()
+	switch {
+	case min != nil && max != nil:
+		return fmt.Sprintf("min: %s, max: %s", formatBound(*min), formatBound(*max))
+	case min != nil:
+		return "min: " + formatBound(*min)
+	case max != nil:
+		return "max: " + formatBound(*max)
+	}
+	return ""
+}
+
+// formatBound renders a bound without a float artifact (100 not 100.000000).
+func formatBound(v float64) string {
+	return strconv.FormatFloat(v, 'f', -1, 64)
+}
+
+// literalStr renders a coerced literal (default/example) for flag help,
+// returning "" for a nil or empty value so the caller can omit the clause.
+func literalStr(v interface{}) string {
+	if v == nil {
+		return ""
+	}
+	return fmt.Sprintf("%v", v)
+}
+
+func enumStrings(enum []interface{}) []string {
+	out := make([]string, 0, len(enum))
+	for _, e := range enum {
+		out = append(out, fmt.Sprintf("%v", e))
+	}
+	return out
+}

cmd/service/sanitize_test.go

@@ -0,0 +1,61 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"strings"
+	"testing"
+)
+
+func TestSanitizeOptionDesc(t *testing.T) {
+	cases := map[string]string{
+		"":                         "",
+		"以 open_id 标识用户":           "以 open_id 标识用户",
+		"中文。English second clause": "中文",         // first clause only (。)
+		"head；tail":                "head",       // first clause (；)
+		"line one\nline two":       "line one",   // first clause (newline)
+		"  spaced   out  ":         "spaced out", // whitespace collapsed
+		"see [飞书后台](https://x/admin) 详情": "see 飞书后台 详情", // markdown link -> text, url dropped
+	}
+	for in, want := range cases {
+		if got := sanitizeOptionDesc(in); got != want {
+			t.Errorf("sanitizeOptionDesc(%q) = %q, want %q", in, got, want)
+		}
+	}
+
+	// Truncation: a long single clause is cut to 40 runes with an ellipsis,
+	// rune-safe (no split mid-character).
+	long := strings.Repeat("文", 60)
+	got := sanitizeOptionDesc(long)
+	if r := []rune(got); len(r) != 40 || !strings.HasSuffix(got, "...") {
+		t.Errorf("truncation = %q (%d runes), want 40 runes ending in ...", got, len(r))
+	}
+}
+
+func TestSanitizeFieldDesc_TrimsDanglingPunctuation(t *testing.T) {
+	// A clause cut can strand a connector (e.g. a colon introducing a list the
+	// newline cut drops, as in im.reactions.list's message_id); the help line
+	// joiner then renders "…获取方式：." — so dangling punctuation must go too.
+	cases := map[string]string{
+		"待查询的消息ID。ID 获取方式：\n- 调用接口获取": "待查询的消息ID。ID 获取方式",
+		"see the list below:\nitem":   "see the list below",
+		"逗号结尾，\n下一行":                  "逗号结尾",
+	}
+	for in, want := range cases {
+		if got := sanitizeFieldDesc(in); got != want {
+			t.Errorf("sanitizeFieldDesc(%q) = %q, want %q", in, got, want)
+		}
+	}
+}
+
+func TestSanitizeFieldDesc_StripsBackquotes(t *testing.T) {
+	// pflag's UnquoteUsage takes a backquoted word in a flag's usage string as
+	// the flag's metavar: wiki space_id's description rendered the flag as
+	// "--space-id my_library" instead of "--space-id string".
+	in := "[知识空间id](https://x/wiki)，如果查询我的文档库可替换为`my_library`"
+	want := "知识空间id，如果查询我的文档库可替换为my_library"
+	if got := sanitizeFieldDesc(in); got != want {
+		t.Errorf("sanitizeFieldDesc(%q) = %q, want %q", in, got, want)
+	}
+}

cmd/service/service.go

@@ -10,18 +10,21 @@ import (
 	"strings"
 
 	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/apicatalog"
 	"github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/client"
+	"github.com/larksuite/cli/internal/cmdmeta"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/credential"
 	"github.com/larksuite/cli/internal/errclass"
+	"github.com/larksuite/cli/internal/meta"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/registry"
-	"github.com/larksuite/cli/internal/util"
 	"github.com/larksuite/cli/internal/validate"
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
 )
 
 // RegisterServiceCommands registers all service commands from from_meta specs.
@@ -30,85 +33,79 @@ func RegisterServiceCommands(parent *cobra.Command, f *cmdutil.Factory) {
 }
 
 func RegisterServiceCommandsWithContext(ctx context.Context, parent *cobra.Command, f *cmdutil.Factory) {
-	for _, project := range registry.ListFromMetaProjects() {
-		spec := registry.LoadFromMeta(project)
-		if spec == nil {
+	RegisterServiceCommandsFromCatalog(ctx, parent, f, registry.RuntimeCatalog())
+}
+
+func RegisterServiceCommandsFromCatalog(ctx context.Context, parent *cobra.Command, f *cmdutil.Factory, catalog apicatalog.Catalog) {
+	// Drive the service list from the same navigation catalog the method walk
+	// uses, so registration is catalog-sourced end to end. Kept as a per-service
+	// loop rather than a flat WalkMethods(nil) drive precisely so a service with
+	// no methods still gets its bare command (WalkMethods yields one ref per
+	// method, so empty services would vanish).
+	for _, svc := range catalog.Services() {
+		if svc.Name == "" || svc.ServicePath == "" {
 			continue
 		}
-		specName := registry.GetStrFromMap(spec, "name")
-		servicePath := registry.GetStrFromMap(spec, "servicePath")
-		if specName == "" || servicePath == "" {
-			continue
-		}
-		resources, _ := spec["resources"].(map[string]interface{})
-		if resources == nil {
-			continue
-		}
-		registerServiceWithContext(ctx, parent, spec, resources, f)
+		registerServiceWithContext(ctx, parent, svc, f)
 	}
 }
 
-func registerService(parent *cobra.Command, spec map[string]interface{}, resources map[string]interface{}, f *cmdutil.Factory) {
-	registerServiceWithContext(context.Background(), parent, spec, resources, f)
+func registerService(parent *cobra.Command, svc meta.Service, f *cmdutil.Factory) {
+	registerServiceWithContext(context.Background(), parent, svc, f)
 }
 
-func registerServiceWithContext(ctx context.Context, parent *cobra.Command, spec map[string]interface{}, resources map[string]interface{}, f *cmdutil.Factory) {
-	specName := registry.GetStrFromMap(spec, "name")
-	specDesc := registry.GetServiceDescription(specName, "en")
-	if specDesc == "" {
-		specDesc = registry.GetStrFromMap(spec, "description")
-	}
+func registerServiceWithContext(ctx context.Context, parent *cobra.Command, svc meta.Service, f *cmdutil.Factory) {
+	svcCmd := ensureChildCommand(parent, svc.Name, serviceShort(svc))
 
-	// Find existing service command or create one
-	var svc *cobra.Command
+	// Build the service's subtree from the catalog's method walk
+	// (apicatalog.ServiceMethods recurses nested resources), so the command tree
+	// is sourced from the same navigation Module as schema/scope rather than a
+	// hand-rolled resource/method walk. Each ref's ResourcePath becomes the
+	// resource-command chain — one level for a flat dotted resource like
+	// "chat.members", deeper for genuinely nested resources. A service with no
+	// methods keeps its bare command (svcCmd is created above regardless).
+	for _, ref := range apicatalog.ServiceMethods(svc, nil) {
+		resCmd := svcCmd
+		for _, seg := range ref.ResourcePath {
+			resCmd = ensureChildCommand(resCmd, seg, seg+" operations")
+		}
+		resCmd.AddCommand(buildMethodCommand(ctx, f, newMethodCommandSpec(ref), nil, parent.PersistentFlags()))
+	}
+}
+
+// serviceShort is the service command's help summary: the localized description
+// from the registry, falling back to the metadata's own description.
+func serviceShort(svc meta.Service) string {
+	if d := registry.GetServiceDescription(svc.Name, "en"); d != "" {
+		return d
+	}
+	return svc.Description
+}
+
+// ensureChildCommand returns the child of parent named name, creating it (with
+// short) when absent — so re-registration merges into an existing command tree
+// instead of duplicating a level.
+func ensureChildCommand(parent *cobra.Command, name, short string) *cobra.Command {
 	for _, c := range parent.Commands() {
-		if c.Name() == specName {
-			svc = c
-			break
+		if c.Name() == name {
+			cmdmeta.SetSource(c, cmdmeta.SourceService, true)
+			return c
 		}
 	}
-	if svc == nil {
-		svc = &cobra.Command{
-			Use:   specName,
-			Short: specDesc,
-		}
-		parent.AddCommand(svc)
-	}
-
-	for resName, resource := range resources {
-		resMap, _ := resource.(map[string]interface{})
-		if resMap == nil {
-			continue
-		}
-		registerResourceWithContext(ctx, svc, spec, resName, resMap, f)
-	}
-}
-
-func registerResourceWithContext(ctx context.Context, parent *cobra.Command, spec map[string]interface{}, name string, resource map[string]interface{}, f *cmdutil.Factory) {
-	res := &cobra.Command{
-		Use:   name,
-		Short: name + " operations",
-	}
-	parent.AddCommand(res)
-
-	methods, _ := resource["methods"].(map[string]interface{})
-	for methodName, method := range methods {
-		methodMap, _ := method.(map[string]interface{})
-		if methodMap == nil {
-			continue
-		}
-		registerMethodWithContext(ctx, res, spec, methodMap, methodName, name, f)
-	}
+	cmd := &cobra.Command{Use: name, Short: short}
+	cmdmeta.SetSource(cmd, cmdmeta.SourceService, true)
+	parent.AddCommand(cmd)
+	return cmd
 }
 
 // ServiceMethodOptions holds all inputs for a dynamically registered service method command.
 type ServiceMethodOptions struct {
-	Factory    *cmdutil.Factory
-	Cmd        *cobra.Command
-	Ctx        context.Context
-	Spec       map[string]interface{}
-	Method     map[string]interface{}
-	SchemaPath string
+	Factory     *cmdutil.Factory
+	Cmd         *cobra.Command
+	Ctx         context.Context
+	ServicePath string
+	Method      meta.Method
+	SchemaPath  string
 
 	// Flags
 	Params     string
@@ -123,41 +120,113 @@ type ServiceMethodOptions struct {
 	DryRun     bool
 	File       string   // --file flag value
 	FileFields []string // auto-detected file field names from metadata
+
+	// binder owns the generated typed param flags — registration and the
+	// --params overlay — replacing the raw paramFlags side-channel.
+	binder *paramFlagBinder
 }
 
-// detectFileFields delegates to the shared cmdutil.DetectFileFields helper.
-func detectFileFields(method map[string]interface{}) []string {
-	return cmdutil.DetectFileFields(method)
-}
-
-func registerMethodWithContext(ctx context.Context, parent *cobra.Command, spec map[string]interface{}, method map[string]interface{}, name string, resName string, f *cmdutil.Factory) {
-	parent.AddCommand(NewCmdServiceMethodWithContext(ctx, f, spec, method, name, resName, nil))
+// detectFileFields returns the request-body file-upload field names.
+func detectFileFields(m meta.Method) []string {
+	files := m.Files()
+	if len(files) == 0 {
+		return nil
+	}
+	names := make([]string, len(files))
+	for i, f := range files {
+		names[i] = f.Name
+	}
+	return names
 }
 
 // NewCmdServiceMethod creates a command for a dynamically registered service method.
-func NewCmdServiceMethod(f *cmdutil.Factory, spec, method map[string]interface{}, name, resName string, runF func(*ServiceMethodOptions) error) *cobra.Command {
-	return NewCmdServiceMethodWithContext(context.Background(), f, spec, method, name, resName, runF)
+func NewCmdServiceMethod(f *cmdutil.Factory, svc meta.Service, m meta.Method, name, resName string, runF func(*ServiceMethodOptions) error) *cobra.Command {
+	return NewCmdServiceMethodWithContext(context.Background(), f, svc, m, name, resName, runF)
 }
 
-func NewCmdServiceMethodWithContext(ctx context.Context, f *cmdutil.Factory, spec, method map[string]interface{}, name, resName string, runF func(*ServiceMethodOptions) error) *cobra.Command {
-	desc := registry.GetStrFromMap(method, "description")
-	httpMethod := registry.GetStrFromMap(method, "httpMethod")
-	risk := registry.GetStrFromMap(method, "risk")
-	specName := registry.GetStrFromMap(spec, "name")
-	schemaPath := fmt.Sprintf("%s.%s.%s", specName, resName, name)
+// NewCmdServiceMethodWithContext builds the command for one service method from
+// its (service, resource, method) coordinates, deriving the methodCommandSpec
+// via an apicatalog.MethodRef so direct callers and the catalog-driven
+// registration assemble the command identically.
+func NewCmdServiceMethodWithContext(ctx context.Context, f *cmdutil.Factory, svc meta.Service, m meta.Method, name, resName string, runF func(*ServiceMethodOptions) error) *cobra.Command {
+	m.Name = name
+	ref := apicatalog.MethodRef{Service: svc, ResourcePath: []string{resName}, Method: m}
+	// No root in scope here; persistent-flag collisions don't apply to a
+	// standalone command, and local/standard-flag collisions are still caught.
+	return buildMethodCommand(ctx, f, newMethodCommandSpec(ref), runF, nil)
+}
 
+// methodCommandSpec is the static description of one generated service method
+// command, read off an apicatalog.MethodRef — the single place command
+// construction gets the method's facts (schema path, HTTP base path, risk,
+// identities, params, file fields, request-body support), so the cobra command
+// is assembled from a typed spec rather than recomputing paths/flags inline.
+type methodCommandSpec struct {
+	method      meta.Method
+	schemaPath  string       // "service.resource.method", for the --help hint
+	servicePath string       // service HTTP base path
+	risk        string       // RiskRead | RiskWrite | RiskHighRiskWrite
+	restricts   bool         // method declares accessTokens (identity-restricted)
+	identities  []string     // permitted --as values; empty when unrestricted
+	params      []meta.Field // path/query params -> typed flags
+	fileFields  []string     // request-body file-upload field names
+	// acceptsBody is whether the HTTP method allows a request body at all (so
+	// --data is offered as a raw escape hatch). declaresBody is whether the
+	// metadata documents body fields (data or file). They differ for e.g. a POST
+	// with no documented requestBody: --data still works, but help must not imply
+	// the API declares a body.
+	acceptsBody  bool
+	declaresBody bool
+	affordance   string // rendered hand-authored usage guidance (when-to-use, examples); "" if none
+}
+
+func newMethodCommandSpec(ref apicatalog.MethodRef) methodCommandSpec {
+	m := ref.Method
+	return methodCommandSpec{
+		method:       m,
+		schemaPath:   ref.SchemaPath(),
+		servicePath:  ref.Service.ServicePath,
+		risk:         m.Risk,
+		restricts:    m.RestrictsIdentity(),
+		identities:   m.Identities(),
+		params:       m.Params(),
+		fileFields:   detectFileFields(m),
+		acceptsBody:  methodTakesBody(m.HTTPMethod),
+		declaresBody: len(m.Data()) > 0 || len(m.Files()) > 0,
+		affordance:   renderAffordance(m),
+	}
+}
+
+// methodTakesBody reports whether the HTTP method allows a request body, i.e.
+// whether --data applies (as a raw escape hatch even when no body is declared).
+func methodTakesBody(httpMethod string) bool {
+	switch httpMethod {
+	case "POST", "PUT", "PATCH", "DELETE":
+		return true
+	}
+	return false
+}
+
+// buildMethodCommand assembles the cobra command for a service method from its
+// static spec: the standard flags, the conditional --data/--file/--yes flags,
+// the generated typed param flags (via paramFlagBinder), and the risk/identity
+// policy annotations.
+func buildMethodCommand(ctx context.Context, f *cmdutil.Factory, spec methodCommandSpec, runF func(*ServiceMethodOptions) error, reserved *pflag.FlagSet) *cobra.Command {
+	m := spec.method
 	opts := &ServiceMethodOptions{
-		Factory:    f,
-		Spec:       spec,
-		Method:     method,
-		SchemaPath: schemaPath,
+		Factory:     f,
+		ServicePath: spec.servicePath,
+		Method:      m,
+		SchemaPath:  spec.schemaPath,
+		FileFields:  spec.fileFields,
 	}
 	var asStr string
 
 	cmd := &cobra.Command{
-		Use:   name,
-		Short: desc,
-		Long:  fmt.Sprintf("%s\n\nView parameter definitions before calling:\n  lark-cli schema %s", desc, schemaPath),
+		Use:   m.Name,
+		Short: m.Description,
+		// Long is assembled below, once the binder knows which params got no
+		// typed flag.
 		RunE: func(cmd *cobra.Command, args []string) error {
 			opts.Cmd = cmd
 			opts.Ctx = cmd.Context()
@@ -168,11 +237,17 @@ func NewCmdServiceMethodWithContext(ctx context.Context, f *cmdutil.Factory, spe
 			return serviceMethodRun(opts)
 		},
 	}
+	cmdmeta.SetSource(cmd, cmdmeta.SourceService, true)
 
-	cmd.Flags().StringVar(&opts.Params, "params", "", "URL/query parameters JSON (supports - for stdin, @file for file input)")
-	switch httpMethod {
-	case "POST", "PUT", "PATCH", "DELETE":
-		cmd.Flags().StringVar(&opts.Data, "data", "", "request body JSON (supports - for stdin, @file for file input)")
+	cmd.Flags().StringVar(&opts.Params, "params", "", "Raw URL/query params JSON. Supports - and @file.")
+	if spec.acceptsBody {
+		dataUsage := "JSON request body. Supports - and @file."
+		if !spec.declaresBody {
+			// POST/etc. with no documented body fields: --data is a raw escape
+			// hatch, not a declared body — say so rather than imply structure.
+			dataUsage = "Raw JSON request body (no documented fields; see schema). Supports - and @file."
+		}
+		cmd.Flags().StringVar(&opts.Data, "data", "", dataUsage)
 	}
 	cmdutil.AddAPIIdentityFlag(ctx, cmd, f, &asStr)
 	cmd.Flags().StringVarP(&opts.Output, "output", "o", "", "output file path for binary responses")
@@ -183,27 +258,61 @@ func NewCmdServiceMethodWithContext(ctx context.Context, f *cmdutil.Factory, spe
 	cmd.Flags().Bool("json", false, "shorthand for --format json")
 	cmd.Flags().StringVarP(&opts.JqExpr, "jq", "q", "", "jq expression to filter JSON output")
 	cmd.Flags().BoolVar(&opts.DryRun, "dry-run", false, "print request without executing")
-	if risk == "high-risk-write" {
+	if spec.risk == cmdutil.RiskHighRiskWrite {
 		cmd.Flags().Bool("yes", false, "confirm high-risk operation")
 	}
-
-	// Conditionally register --file for methods with file-type fields.
-	fileFields := detectFileFields(method)
-	opts.FileFields = fileFields
-	if len(fileFields) > 0 {
-		switch httpMethod {
-		case "POST", "PUT", "PATCH", "DELETE":
-			cmd.Flags().StringVar(&opts.File, "file", "", "file to upload ([field=]path, supports - for stdin)")
-		}
+	// --file only for body methods that actually declare file-type fields.
+	if len(spec.fileFields) > 0 && spec.acceptsBody {
+		cmd.Flags().StringVar(&opts.File, "file", "", "File upload [field=]path. Supports - and stdin.")
 	}
 	cmdutil.RegisterFlagCompletion(cmd, "format", func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
 		return []string{"json", "ndjson", "table", "csv"}, cobra.ShellCompDirectiveNoFileComp
 	})
 
-	cmdutil.SetTips(cmd, registry.GetStrSliceFromMap(method, "tips"))
-	cmdutil.SetRisk(cmd, risk)
-	if tokens, ok := method["accessTokens"].([]interface{}); ok && len(tokens) > 0 {
-		cmdutil.SetSupportedIdentities(cmd, cmdutil.AccessTokensToIdentities(tokens))
+	// Registered last so the collision guard sees the standard flags above.
+	opts.binder = newParamFlagBinder(cmd, spec.params, reserved)
+	// Single composition point for Long: description, affordance, schema
+	// pointer, and the binder's params-only addendum (params whose flag name is
+	// taken, reachable via --params only).
+	cmd.Long = methodLong(m.Description, spec.affordance, spec.schemaPath, opts.binder.paramsOnlyHelp())
+
+	// Group flags for the grouped --help renderer (typed param flags are grouped
+	// as API Parameters by the binder). tagFlagGroup is a no-op for flags not
+	// registered above (e.g. --data/--file/--yes only exist for some methods).
+	// --data sits under Request Body only when the metadata documents body
+	// fields; otherwise it's a raw escape hatch, grouped with --params so help
+	// doesn't imply a declared body the API doesn't have.
+	if fl := cmd.Flags().Lookup("data"); fl != nil {
+		if spec.declaresBody {
+			annotate(fl, flagGroupAnnotation, []string{groupBody})
+		} else {
+			annotate(fl, flagGroupAnnotation, []string{groupRaw})
+		}
+	}
+	tagFlagGroup(cmd.Flags(), "file", groupBody)
+	if fl := cmd.Flags().Lookup("params"); fl != nil {
+		annotate(fl, flagGroupAnnotation, []string{groupRaw})
+		// State the precedence rule where the agent reads it: --params is the
+		// base, typed flags override. Only meaningful when typed flags exist.
+		if len(spec.params) > 0 {
+			annotate(fl, flagNoteAnnotation, []string{
+				"Typed API parameter flags above are preferred.",
+				"If both are set, typed flags override matching keys in --params.",
+			})
+		}
+	}
+	for _, name := range []string{"as", "dry-run", "page-all", "page-limit", "page-delay", "yes"} {
+		tagFlagGroup(cmd.Flags(), name, groupExecution)
+	}
+	for _, name := range []string{"output", "format", "jq"} {
+		tagFlagGroup(cmd.Flags(), name, groupOutput)
+	}
+	applyGroupedUsage(cmd)
+
+	cmdutil.SetTips(cmd, m.Tips)
+	cmdutil.SetRisk(cmd, spec.risk)
+	if spec.restricts {
+		cmdutil.SetSupportedIdentities(cmd, spec.identities)
 	}
 
 	return cmd
@@ -218,8 +327,8 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 	}
 
 	// Check if this API method supports the resolved identity.
-	if tokens, ok := opts.Method["accessTokens"].([]interface{}); ok && len(tokens) > 0 {
-		if err := f.CheckIdentity(opts.As, cmdutil.AccessTokensToIdentities(tokens)); err != nil {
+	if opts.Method.RestrictsIdentity() {
+		if err := f.CheckIdentity(opts.As, opts.Method.Identities()); err != nil {
 			return err
 		}
 	}
@@ -235,12 +344,10 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 	if err != nil {
 		return err
 	}
-	// Identity info is now included in the JSON envelope; skip stderr printing.
-	// cmdutil.PrintIdentity(f.IOStreams.ErrOut, opts.As, config, f.IdentityAutoDetected)
+	// Identity is not printed to stderr here: it is part of the JSON envelope.
 
-	scopes, _ := opts.Method["scopes"].([]interface{})
 	if !opts.As.IsBot() {
-		if err := checkServiceScopes(opts.Ctx, f.Credential, opts.As, config, opts.Method, scopes); err != nil {
+		if err := checkServiceScopes(opts.Ctx, f.Credential, opts.As, config, opts.Method); err != nil {
 			return err
 		}
 	}
@@ -257,7 +364,7 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 		return serviceDryRun(f, request, config, opts.Format)
 	}
 
-	if registry.GetStrFromMap(opts.Method, "risk") == "high-risk-write" {
+	if opts.Method.Risk == cmdutil.RiskHighRiskWrite {
 		if yes, _ := opts.Cmd.Flags().GetBool("yes"); !yes {
 			return cmdutil.RequireConfirmation(opts.SchemaPath)
 		}
@@ -280,7 +387,7 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 	checkErr := ac.CheckResponse
 
 	if opts.PageAll {
-		return servicePaginate(opts.Ctx, ac, request, format, opts.JqExpr, out, f.IOStreams.ErrOut,
+		return servicePaginate(opts.Ctx, ac, request, format, opts.JqExpr, out, f.IOStreams.ErrOut, opts.Cmd.CommandPath(),
 			client.PaginationOptions{PageLimit: opts.PageLimit, PageDelay: opts.PageDelay}, checkErr)
 	}
 
@@ -302,7 +409,7 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 }
 
 // checkServiceScopes pre-checks user scopes before making the API call.
-func checkServiceScopes(ctx context.Context, cred *credential.CredentialProvider, identity core.Identity, config *core.CliConfig, method map[string]interface{}, scopes []interface{}) error {
+func checkServiceScopes(ctx context.Context, cred *credential.CredentialProvider, identity core.Identity, config *core.CliConfig, method meta.Method) error {
 	if ctx.Err() != nil {
 		return ctx.Err()
 	}
@@ -311,23 +418,15 @@ func checkServiceScopes(ctx context.Context, cred *credential.CredentialProvider
 		return nil //nolint:nilerr // skip scope check when token resolution fails or has no scopes
 	}
 
-	requiredScopes, hasRequired := method["requiredScopes"].([]interface{})
-
-	if hasRequired && len(requiredScopes) > 0 {
+	if len(method.RequiredScopes) > 0 {
 		// Strict: ALL requiredScopes must be present
-		required := make([]string, 0, len(requiredScopes))
-		for _, s := range requiredScopes {
-			if str, ok := s.(string); ok {
-				required = append(required, str)
-			}
-		}
-		if missing := auth.MissingScopes(result.Scopes, required); len(missing) > 0 {
+		if missing := auth.MissingScopes(result.Scopes, method.RequiredScopes); len(missing) > 0 {
 			return newPreflightMissingScopeError(string(config.Brand), config.AppID, string(identity), missing)
 		}
 		return nil
 	}
 
-	if len(scopes) == 0 {
+	if len(method.Scopes) == 0 {
 		return nil
 	}
 
@@ -336,12 +435,12 @@ func checkServiceScopes(ctx context.Context, cred *credential.CredentialProvider
 	for _, s := range strings.Fields(result.Scopes) {
 		grantedSet[s] = true
 	}
-	for _, s := range scopes {
-		if str, ok := s.(string); ok && grantedSet[str] {
+	for _, s := range method.Scopes {
+		if grantedSet[s] {
 			return nil
 		}
 	}
-	recommended := registry.SelectRecommendedScope(scopes, "user")
+	recommended := registry.SelectRecommendedScopeFromStrings(method.Scopes, "user")
 	return newPreflightMissingScopeError(string(config.Brand), config.AppID, string(identity), []string{recommended})
 }
 
@@ -362,14 +461,44 @@ func newPreflightMissingScopeError(brand, appID, identity string, missing []stri
 		WithIdentity(identity)
 }
 
+// unusableParamValue reports whether a provided path/query parameter value
+// cannot form a usable request value: nil or an empty string. A key's presence
+// in params is the intent signal — a typed flag is overlaid only when
+// explicitly Changed, and a --params JSON key is deliberately written — so
+// false and 0 are real values and must not be conflated with "unset"
+// (reflect.IsZero would drop an explicit --with-deleted=false or --foo 0).
+// Only nil/"" stay treated as missing: that keeps the friendly pre-flight
+// error when a required param is fed an empty placeholder, and never emits a
+// declared param as an empty path segment or query value. Undeclared keys are
+// not judged by this rule — they pass through verbatim as the raw escape hatch.
+func unusableParamValue(v interface{}) bool {
+	if v == nil {
+		return true
+	}
+	s, ok := v.(string)
+	return ok && s == ""
+}
+
+// missingParamHint is the recovery hint for a missing required parameter. It
+// names both input paths — the typed flag when the binder registered one, and
+// the --params fallback — plus the schema pointer. A params-only field gets
+// only the --params form: a flag with its kebab name exists but belongs to
+// something else (e.g. the output --format), and the hint must not steer
+// there. Asking the binder, not cmd.Flags(), is what tells those apart.
+func missingParamHint(opts *ServiceMethodOptions, f meta.Field) string {
+	paramsForm := fmt.Sprintf("--params '{%q: \"<value>\"}'", f.Name)
+	if opts.binder.hasTypedFlag(f.Name) {
+		return fmt.Sprintf("set --%s <value> (or %s); see: lark-cli schema %s", f.FlagName(), paramsForm, opts.SchemaPath)
+	}
+	return fmt.Sprintf("set %s; see: lark-cli schema %s", paramsForm, opts.SchemaPath)
+}
+
 // buildServiceRequest parses flags, builds the URL with path/query params, and returns a RawApiRequest.
 // When dryRun is true and a file is provided, file reading is skipped and
 // FileUploadMeta is returned instead so the caller can render dry-run output.
 func buildServiceRequest(opts *ServiceMethodOptions) (client.RawApiRequest, *cmdutil.FileUploadMeta, error) {
-	spec := opts.Spec
 	method := opts.Method
-	schemaPath := opts.SchemaPath
-	httpMethod := registry.GetStrFromMap(method, "httpMethod")
+	httpMethod := method.HTTPMethod
 
 	// stdin is an io.Reader consumed at most once. Only one of --params/--data
 	// may use "-" (stdin); the conflict check below prevents silent data loss.
@@ -387,53 +516,55 @@ func buildServiceRequest(opts *ServiceMethodOptions) (client.RawApiRequest, *cmd
 	if err != nil {
 		return client.RawApiRequest{}, nil, err
 	}
+	opts.binder.overlay(opts.Cmd, params)
 
-	url := registry.GetStrFromMap(spec, "servicePath") + "/" + registry.GetStrFromMap(method, "path")
+	url := opts.ServicePath + "/" + method.Path
 
-	parameters, _ := method["parameters"].(map[string]interface{})
-	for name, param := range parameters {
-		p, _ := param.(map[string]interface{})
-		if registry.GetStrFromMap(p, "location") != "path" {
+	specs := method.Params()
+	for _, s := range specs {
+		if s.Location != "path" {
 			continue
 		}
-		val, ok := params[name]
-		if !ok || util.IsEmptyValue(val) {
+		val, ok := params[s.Name]
+		if !ok || unusableParamValue(val) {
 			return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
-				"missing required path parameter: %s", name).
-				WithHint("lark-cli schema %s", schemaPath).
-				WithParam(name)
+				"missing required path parameter: %s", s.Name).
+				WithHint("%s", missingParamHint(opts, s)).
+				WithParam(s.Name)
 		}
 		valStr := fmt.Sprintf("%v", val)
-		if err := validate.ResourceName(valStr, name); err != nil {
-			return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err).WithParam(name).WithCause(err)
+		if err := validate.ResourceName(valStr, s.Name); err != nil {
+			return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err).WithParam(s.Name).WithCause(err)
 		}
-		url = strings.Replace(url, "{"+name+"}", validate.EncodePathSegment(valStr), 1)
-		delete(params, name)
+		url = strings.Replace(url, "{"+s.Name+"}", validate.EncodePathSegment(valStr), 1)
+		delete(params, s.Name)
 	}
 
 	queryParams := map[string]interface{}{}
-	for name, param := range parameters {
-		p, _ := param.(map[string]interface{})
-		if registry.GetStrFromMap(p, "location") != "query" {
+	for _, s := range specs {
+		if s.Location != "query" {
 			continue
 		}
-		value, exists := params[name]
-		required, _ := p["required"].(bool)
-		isPaginationParam := opts.PageAll && (name == "page_token" || name == "page_size")
-		if required && !isPaginationParam && (!exists || util.IsEmptyValue(value)) {
+		value, exists := params[s.Name]
+		isPaginationParam := opts.PageAll && (s.Name == "page_token" || s.Name == "page_size")
+		if s.Required && !isPaginationParam && (!exists || unusableParamValue(value)) {
 			return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
-				"missing required query parameter: %s", name).
-				WithHint("lark-cli schema %s", schemaPath).
-				WithParam(name)
+				"missing required query parameter: %s", s.Name).
+				WithHint("%s", missingParamHint(opts, s)).
+				WithParam(s.Name)
 		}
-		if exists && !util.IsEmptyValue(value) {
-			queryParams[name] = value
+		if exists && !unusableParamValue(value) {
+			queryParams[s.Name] = value
 		}
+		// This loop owns declared query params: consume the key so the
+		// passthrough below can't resurrect a value the gate dropped (an
+		// unusable "" would otherwise be sent as an empty query value).
+		delete(params, s.Name)
 	}
+	// Whatever remains is undeclared — the raw escape hatch for params the
+	// metadata doesn't (yet) describe; passed through verbatim, no filtering.
 	for name, value := range params {
-		if _, ok := queryParams[name]; !ok {
-			queryParams[name] = value
-		}
+		queryParams[name] = value
 	}
 
 	request := client.RawApiRequest{
@@ -496,20 +627,45 @@ func serviceDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *cor
 	return cmdutil.PrintDryRun(f.IOStreams.Out, request, config, format)
 }
 
-func servicePaginate(ctx context.Context, ac *client.APIClient, request client.RawApiRequest, format output.Format, jqExpr string, out, errOut io.Writer, pagOpts client.PaginationOptions, checkErr func(interface{}, core.Identity) error) error {
+func servicePaginate(ctx context.Context, ac *client.APIClient, request client.RawApiRequest, format output.Format, jqExpr string, out, errOut io.Writer, commandPath string, pagOpts client.PaginationOptions, checkErr func(interface{}, core.Identity) error) error {
 	if pagOpts.Identity == "" {
 		pagOpts.Identity = request.As
 	}
 	// When jq is set, always aggregate all pages then filter.
 	if jqExpr != "" {
-		return client.PaginateWithJq(ctx, ac, request, jqExpr, out, pagOpts, checkErr)
+		result, err := ac.PaginateAll(ctx, request, pagOpts)
+		if err != nil {
+			return err
+		}
+		if apiErr := checkErr(result, pagOpts.Identity); apiErr != nil {
+			output.FormatValue(out, result, output.FormatJSON)
+			return apiErr
+		}
+		return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+			CommandPath: commandPath,
+			Identity:    string(pagOpts.Identity),
+			JqExpr:      jqExpr,
+			Out:         out,
+			ErrOut:      errOut,
+		})
 	}
 
 	switch format {
 	case output.FormatNDJSON, output.FormatTable, output.FormatCSV:
 		pf := output.NewPaginatedFormatter(out, format)
-		result, hasItems, err := ac.StreamPages(ctx, request, func(items []interface{}) {
+		result, hasItems, err := ac.StreamPages(ctx, request, func(items []interface{}) error {
+			// Streaming formats intentionally emit each page after that page has
+			// passed safety scanning. A later page may still fail, so callers
+			// must use the exit code to distinguish complete vs partial output.
+			scanResult := output.ScanForSafety(commandPath, items, errOut)
+			if scanResult.Blocked {
+				return scanResult.BlockErr
+			}
+			if scanResult.Alert != nil {
+				output.WriteAlertWarning(errOut, scanResult.Alert)
+			}
 			pf.FormatPage(items)
+			return nil
 		}, pagOpts)
 		if err != nil {
 			return err
@@ -519,7 +675,12 @@ func servicePaginate(ctx context.Context, ac *client.APIClient, request client.R
 		}
 		if !hasItems {
 			fmt.Fprintf(errOut, "warning: this API does not return a list, format %q is not supported, falling back to json\n", format)
-			output.FormatValue(out, result, output.FormatJSON)
+			return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+				CommandPath: commandPath,
+				Identity:    string(pagOpts.Identity),
+				Out:         out,
+				ErrOut:      errOut,
+			})
 		}
 		return nil
 	default:
@@ -528,9 +689,14 @@ func servicePaginate(ctx context.Context, ac *client.APIClient, request client.R
 			return err
 		}
 		if apiErr := checkErr(result, pagOpts.Identity); apiErr != nil {
+			output.FormatValue(out, result, output.FormatJSON)
 			return apiErr
 		}
-		output.FormatValue(out, result, format)
-		return nil
+		return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+			CommandPath: commandPath,
+			Identity:    string(pagOpts.Identity),
+			Out:         out,
+			ErrOut:      errOut,
+		})
 	}
 }

cmd/service/service_risk_test.go

@@ -8,13 +8,14 @@ import (
 	"testing"
 
 	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/meta"
 )
 
 // highRiskDeleteMethod mirrors a simple DELETE API with a required path
-// parameter and risk metadata. The returned map is what service registration
-// reads; the test exercises --yes registration and the gate behavior.
-func highRiskDeleteMethod() map[string]interface{} {
-	return map[string]interface{}{
+// parameter and risk metadata. The test exercises --yes registration and the
+// gate behavior.
+func highRiskDeleteMethod() meta.Method {
+	return meta.FromMap(map[string]interface{}{
 		"path":       "files/{file_token}",
 		"httpMethod": "DELETE",
 		"risk":       "high-risk-write",
@@ -23,11 +24,11 @@ func highRiskDeleteMethod() map[string]interface{} {
 				"type": "string", "location": "path", "required": true,
 			},
 		},
-	}
+	})
 }
 
-func writeMethodNoRisk() map[string]interface{} {
-	return map[string]interface{}{
+func writeMethodNoRisk() meta.Method {
+	return meta.FromMap(map[string]interface{}{
 		"path":       "files/{file_token}",
 		"httpMethod": "DELETE",
 		"parameters": map[string]interface{}{
@@ -35,7 +36,7 @@ func writeMethodNoRisk() map[string]interface{} {
 				"type": "string", "location": "path", "required": true,
 			},
 		},
-	}
+	})
 }
 
 func TestServiceMethod_YesFlagRegisteredForHighRisk(t *testing.T) {

cmd/service/service_test.go

@@ -4,13 +4,19 @@
 package service
 
 import (
+	"context"
+	"encoding/json"
+	"errors"
 	"os"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
+	extcs "github.com/larksuite/cli/extension/contentsafety"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/internal/meta"
 	"github.com/spf13/cobra"
 )
 
@@ -20,14 +26,14 @@ var testConfig = &core.CliConfig{
 	AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
 }
 
-func driveSpec() map[string]interface{} {
-	return map[string]interface{}{
+func driveSpec() meta.Service {
+	return meta.ServiceFromMap(map[string]interface{}{
 		"name":        "drive",
 		"servicePath": "/open-apis/drive/v1",
-	}
+	})
 }
 
-func driveMethod(httpMethod string, params map[string]interface{}) map[string]interface{} {
+func driveMethod(httpMethod string, params map[string]interface{}) meta.Method {
 	m := map[string]interface{}{
 		"path":       "files/{file_token}/copy",
 		"httpMethod": httpMethod,
@@ -41,7 +47,7 @@ func driveMethod(httpMethod string, params map[string]interface{}) map[string]in
 			},
 		}
 	}
-	return m
+	return meta.FromMap(m)
 }
 
 // ── registerService ──
@@ -49,23 +55,23 @@ func driveMethod(httpMethod string, params map[string]interface{}) map[string]in
 func TestRegisterService(t *testing.T) {
 	parent := &cobra.Command{Use: "root"}
 	f := &cmdutil.Factory{}
-	spec := map[string]interface{}{
+	base := meta.ServiceFromMap(map[string]interface{}{
 		"name":        "base",
 		"description": "Base API",
 		"servicePath": "/open-apis/base/v3",
-	}
-	resources := map[string]interface{}{
-		"tables": map[string]interface{}{
-			"methods": map[string]interface{}{
-				"list": map[string]interface{}{
-					"description": "List tables",
-					"httpMethod":  "GET",
+		"resources": map[string]interface{}{
+			"tables": map[string]interface{}{
+				"methods": map[string]interface{}{
+					"list": map[string]interface{}{
+						"description": "List tables",
+						"httpMethod":  "GET",
+					},
 				},
 			},
 		},
-	}
+	})
 
-	registerService(parent, spec, resources, f)
+	registerService(parent, base, f)
 
 	// service command exists
 	svc, _, err := parent.Find([]string{"base"})
@@ -90,18 +96,18 @@ func TestRegisterService_MergesExistingCommand(t *testing.T) {
 	parent.AddCommand(existing)
 
 	f := &cmdutil.Factory{}
-	spec := map[string]interface{}{
+	svc := meta.ServiceFromMap(map[string]interface{}{
 		"name": "base", "description": "Base API", "servicePath": "/open-apis/base/v3",
-	}
-	resources := map[string]interface{}{
-		"tables": map[string]interface{}{
-			"methods": map[string]interface{}{
-				"list": map[string]interface{}{"description": "List", "httpMethod": "GET"},
+		"resources": map[string]interface{}{
+			"tables": map[string]interface{}{
+				"methods": map[string]interface{}{
+					"list": map[string]interface{}{"description": "List", "httpMethod": "GET"},
+				},
 			},
 		},
-	}
+	})
 
-	registerService(parent, spec, resources, f)
+	registerService(parent, svc, f)
 
 	// Should reuse existing, not duplicate
 	count := 0
@@ -143,7 +149,7 @@ func TestNewCmdServiceMethod_StrictModeHidesAsFlag(t *testing.T) {
 func TestNewCmdServiceMethod_GETHasNoDataFlag(t *testing.T) {
 	f := &cmdutil.Factory{}
 	cmd := NewCmdServiceMethod(f, driveSpec(),
-		map[string]interface{}{"description": "desc", "httpMethod": "GET"}, "list", "files", nil)
+		meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "GET"}), "list", "files", nil)
 
 	if cmd.Flags().Lookup("data") != nil {
 		t.Error("GET method should not have --data flag")
@@ -159,7 +165,7 @@ func TestNewCmdServiceMethod_GETHasNoDataFlag(t *testing.T) {
 func TestNewCmdServiceMethod_POSTHasDataFlag(t *testing.T) {
 	f := &cmdutil.Factory{}
 	cmd := NewCmdServiceMethod(f, driveSpec(),
-		map[string]interface{}{"description": "desc", "httpMethod": "POST"}, "create", "files", nil)
+		meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "POST"}), "create", "files", nil)
 
 	if cmd.Flags().Lookup("data") == nil {
 		t.Error("POST method should have --data flag")
@@ -171,7 +177,7 @@ func TestNewCmdServiceMethod_RunFCallback(t *testing.T) {
 
 	var captured *ServiceMethodOptions
 	cmd := NewCmdServiceMethod(f, driveSpec(),
-		map[string]interface{}{"description": "desc", "httpMethod": "GET"}, "list", "files",
+		meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "GET"}), "list", "files",
 		func(opts *ServiceMethodOptions) error {
 			captured = opts
 			return nil
@@ -268,15 +274,15 @@ func TestServiceMethod_MissingPathParam(t *testing.T) {
 }
 
 func TestServiceMethod_MissingRequiredQueryParam(t *testing.T) {
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{
+	})
+	method := meta.FromMap(map[string]interface{}{
 		"path": "items", "httpMethod": "GET",
 		"parameters": map[string]interface{}{
 			"q": map[string]interface{}{"location": "query", "required": true},
 		},
-	}
+	})
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--params", `{}`, "--dry-run"})
@@ -291,15 +297,15 @@ func TestServiceMethod_MissingRequiredQueryParam(t *testing.T) {
 }
 
 func TestServiceMethod_PaginationParamSkippedWithPageAll(t *testing.T) {
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{
+	})
+	method := meta.FromMap(map[string]interface{}{
 		"path": "items", "httpMethod": "GET",
 		"parameters": map[string]interface{}{
 			"page_size": map[string]interface{}{"location": "query", "required": true},
 		},
-	}
+	})
 	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--params", `{}`, "--page-all", "--dry-run"})
@@ -315,10 +321,10 @@ func TestServiceMethod_PaginationParamSkippedWithPageAll(t *testing.T) {
 
 func TestServiceMethod_InvalidParamsJSON(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET"}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET"})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--params", "{bad", "--dry-run"})
 
@@ -333,10 +339,10 @@ func TestServiceMethod_InvalidParamsJSON(t *testing.T) {
 
 func TestServiceMethod_InvalidDataJSON(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "POST", "parameters": map[string]interface{}{}}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "POST", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "create", "items", nil)
 	cmd.SetArgs([]string{"--data", "{bad", "--dry-run"})
 
@@ -351,10 +357,10 @@ func TestServiceMethod_InvalidDataJSON(t *testing.T) {
 
 func TestServiceMethod_ParamsAndDataBothStdinConflict(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "POST", "parameters": map[string]interface{}{}}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "POST", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "create", "items", nil)
 	cmd.SetArgs([]string{"--params", "-", "--data", "-", "--dry-run"})
 
@@ -369,10 +375,10 @@ func TestServiceMethod_ParamsAndDataBothStdinConflict(t *testing.T) {
 
 func TestServiceMethod_OutputAndPageAllConflict(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET"}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET"})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--page-all", "--output", "file.bin", "--as", "bot"})
 
@@ -398,16 +404,27 @@ func TestServiceMethod_BotMode_Success(t *testing.T) {
 		},
 	})
 
-	spec := map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}}
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--as", "bot"})
 
 	if err := cmd.Execute(); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	if !strings.Contains(stdout.String(), "success") {
-		t.Errorf("expected 'success' in output, got:\n%s", stdout.String())
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	if got["ok"] != true || got["identity"] != "bot" {
+		t.Fatalf("unexpected envelope: %#v", got)
+	}
+	if _, hasCode := got["code"]; hasCode {
+		t.Fatalf("success envelope leaked outer code: %s", stdout.String())
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok || data["result"] != "success" {
+		t.Fatalf("data = %#v, want result=success", got["data"])
 	}
 }
 
@@ -427,16 +444,320 @@ func TestServiceMethod_BotMode_PageAll_JSON(t *testing.T) {
 		},
 	})
 
-	spec := map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}}
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--as", "bot", "--page-all"})
 
 	if err := cmd.Execute(); err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	if !strings.Contains(stdout.String(), `"id"`) {
-		t.Errorf("expected items in output, got:\n%s", stdout.String())
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if got["ok"] != true || got["identity"] != "bot" || !ok {
+		t.Fatalf("unexpected envelope: %#v", got)
+	}
+	if _, hasCode := got["code"]; hasCode {
+		t.Fatalf("success envelope leaked outer code: %s", stdout.String())
+	}
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("data.items = %#v, want one item", data["items"])
+	}
+}
+
+type serviceContentSafetyProvider struct {
+	called bool
+	path   string
+	data   interface{}
+	match  string
+}
+
+func (p *serviceContentSafetyProvider) Name() string { return "service-test" }
+
+func (p *serviceContentSafetyProvider) Scan(_ context.Context, req extcs.ScanRequest) (*extcs.Alert, error) {
+	p.called = true
+	p.path = req.Path
+	p.data = req.Data
+	if p.match != "" {
+		b, _ := json.Marshal(req.Data)
+		if !strings.Contains(string(b), p.match) {
+			return nil, nil
+		}
+	}
+	return &extcs.Alert{Provider: "service-test", MatchedRules: []string{"pagination"}}, nil
+}
+
+func TestServiceMethod_PageAll_DefaultJSONRunsContentSafety(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "warn")
+	provider := &serviceContentSafetyProvider{}
+	extcs.Register(provider)
+	t.Cleanup(func() { extcs.Register(nil) })
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-safety", AppSecret: "test-secret-service-safety", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	root := &cobra.Command{Use: "lark-cli"}
+	root.AddCommand(NewCmdServiceMethod(f, spec, method, "list", "items", nil))
+	root.SetArgs([]string{"list", "--as", "bot", "--page-all"})
+
+	if err := root.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !provider.called {
+		t.Fatal("expected content safety provider to scan paginated output")
+	}
+	if provider.path != "list" {
+		t.Fatalf("scan path = %q, want list", provider.path)
+	}
+	data, ok := provider.data.(map[string]interface{})
+	if !ok {
+		t.Fatalf("scanned data type = %T, want map", provider.data)
+	}
+	if _, hasCode := data["code"]; hasCode {
+		t.Fatalf("scanned data should be business data only, got %#v", data)
+	}
+
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, stdout.String())
+	}
+	alert, ok := got["_content_safety_alert"].(map[string]interface{})
+	if !ok || alert["provider"] != "service-test" {
+		t.Fatalf("missing content safety alert in envelope: %#v", got)
+	}
+}
+
+func TestServiceMethod_PageAll_StreamFormatRunsContentSafety(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "warn")
+	provider := &serviceContentSafetyProvider{}
+	extcs.Register(provider)
+	t.Cleanup(func() { extcs.Register(nil) })
+
+	f, stdout, stderr, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-stream-safety", AppSecret: "test-secret-service-stream-safety", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	root := &cobra.Command{Use: "lark-cli"}
+	root.AddCommand(NewCmdServiceMethod(f, spec, method, "list", "items", nil))
+	root.SetArgs([]string{"list", "--as", "bot", "--page-all", "--format", "ndjson"})
+
+	if err := root.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !provider.called {
+		t.Fatal("expected content safety provider to scan streamed paginated output")
+	}
+	if provider.path != "list" {
+		t.Fatalf("scan path = %q, want list", provider.path)
+	}
+	items, ok := provider.data.([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("scanned data = %#v, want one streamed item", provider.data)
+	}
+	if !strings.Contains(stderr.String(), "warning: content safety alert from service-test") {
+		t.Fatalf("expected content safety warning on stderr, got: %s", stderr.String())
+	}
+	if !strings.Contains(stdout.String(), `"id":"1"`) {
+		t.Fatalf("expected streamed ndjson output, got: %s", stdout.String())
+	}
+}
+
+func TestServiceMethod_PageAll_StreamFormatBlockSkipsBlockedPage(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "block")
+	provider := &serviceContentSafetyProvider{match: "blocked"}
+	extcs.Register(provider)
+	t.Cleanup(func() { extcs.Register(nil) })
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-stream-block", AppSecret: "test-secret-service-stream-block", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":      []interface{}{map[string]interface{}{"id": "safe-page"}},
+				"has_more":   true,
+				"page_token": "next",
+			},
+		},
+	})
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "blocked-page"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	root := &cobra.Command{Use: "lark-cli"}
+	root.AddCommand(NewCmdServiceMethod(f, spec, method, "list", "items", nil))
+	root.SetArgs([]string{"list", "--as", "bot", "--page-all", "--format", "ndjson"})
+
+	err := root.Execute()
+	if err == nil {
+		t.Fatal("expected content safety block error")
+	}
+	var safetyErr *errs.ContentSafetyError
+	if !errors.As(err, &safetyErr) {
+		t.Fatalf("expected ContentSafetyError, got %T: %v", err, err)
+	}
+	if safetyErr.Category != errs.CategoryPolicy || safetyErr.Subtype != errs.SubtypeContentSafety {
+		t.Fatalf("problem = %s/%s, want %s/%s", safetyErr.Category, safetyErr.Subtype, errs.CategoryPolicy, errs.SubtypeContentSafety)
+	}
+	if len(safetyErr.Rules) != 1 || safetyErr.Rules[0] != "pagination" {
+		t.Fatalf("rules = %v, want [pagination]", safetyErr.Rules)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "safe-page") {
+		t.Fatalf("expected earlier safe page to remain streamed, got: %s", out)
+	}
+	if strings.Contains(out, "blocked-page") {
+		t.Fatalf("blocked page was written before safety block: %s", out)
+	}
+}
+
+func TestServiceMethod_BusinessErrorReturnsTypedErrorWithoutSuccessEnvelope(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-err", AppSecret: "test-secret-service-err", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 230027, "msg": "user not authorized",
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
+	cmd.SetArgs([]string{"--as", "bot"})
+
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error for non-zero code")
+	}
+	requireProblem(t, err, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 230027)
+	var permErr *errs.PermissionError
+	if !errors.As(err, &permErr) {
+		t.Fatalf("expected PermissionError, got %T: %v", err, err)
+	}
+	if strings.Contains(stdout.String(), `"ok": true`) || strings.Contains(stdout.String(), `"ok":true`) {
+		t.Fatalf("unexpected success envelope on error path: %s", stdout.String())
+	}
+}
+
+func TestServiceMethod_PageAll_DefaultBusinessErrorOutputsRawResponse(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-pageall-err", AppSecret: "test-secret-service-pageall-err", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 230027, "msg": "user not authorized",
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
+	cmd.SetArgs([]string{"--as", "bot", "--page-all"})
+
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error for non-zero code")
+	}
+	requireProblem(t, err, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 230027)
+	if !strings.Contains(stdout.String(), "230027") || !strings.Contains(stdout.String(), "user not authorized") {
+		t.Fatalf("expected raw error response on stdout, got: %s", stdout.String())
+	}
+	if strings.Contains(stdout.String(), `"ok": true`) || strings.Contains(stdout.String(), `"ok":true`) {
+		t.Fatalf("unexpected success envelope on error path: %s", stdout.String())
+	}
+}
+
+func TestServiceMethod_PageAll_StreamBusinessErrorDoesNotDumpJSON(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-pageall-stream-err", AppSecret: "test-secret-service-pageall-stream-err", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":      []interface{}{map[string]interface{}{"id": "safe-page"}},
+				"has_more":   true,
+				"page_token": "next",
+			},
+		},
+	})
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 230027,
+			"msg":  "user not authorized",
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
+	cmd.SetArgs([]string{"--as", "bot", "--page-all", "--format", "ndjson"})
+
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error for non-zero code")
+	}
+	requireProblem(t, err, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 230027)
+	out := stdout.String()
+	if !strings.Contains(out, "safe-page") {
+		t.Fatalf("expected earlier successful page to remain streamed, got: %s", out)
+	}
+	if strings.Contains(out, "230027") || strings.Contains(out, "user not authorized") {
+		t.Fatalf("streaming stdout should not contain raw error JSON, got: %s", out)
+	}
+	if strings.Contains(out, "\n  \"code\"") {
+		t.Fatalf("streaming stdout should not contain indented JSON error dump, got: %s", out)
 	}
 }
 
@@ -450,8 +771,8 @@ func TestServiceMethod_UnknownFormat_Warning(t *testing.T) {
 		Body: map[string]interface{}{"code": 0, "msg": "ok", "data": map[string]interface{}{}},
 	})
 
-	spec := map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}}
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--as", "bot", "--format", "unknown"})
 
@@ -470,7 +791,7 @@ func TestNewCmdServiceMethod_JqFlag(t *testing.T) {
 
 	var captured *ServiceMethodOptions
 	cmd := NewCmdServiceMethod(f, driveSpec(),
-		map[string]interface{}{"description": "desc", "httpMethod": "GET"}, "list", "files",
+		meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "GET"}), "list", "files",
 		func(opts *ServiceMethodOptions) error {
 			captured = opts
 			return nil
@@ -492,7 +813,7 @@ func TestNewCmdServiceMethod_JqShortForm(t *testing.T) {
 
 	var captured *ServiceMethodOptions
 	cmd := NewCmdServiceMethod(f, driveSpec(),
-		map[string]interface{}{"description": "desc", "httpMethod": "GET"}, "list", "files",
+		meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "GET"}), "list", "files",
 		func(opts *ServiceMethodOptions) error {
 			captured = opts
 			return nil
@@ -508,10 +829,10 @@ func TestNewCmdServiceMethod_JqShortForm(t *testing.T) {
 
 func TestServiceMethod_JqAndOutputConflict(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET"}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET"})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--jq", ".data", "--output", "file.bin", "--as", "bot"})
 
@@ -542,8 +863,8 @@ func TestServiceMethod_JqFilter_AppliesExpression(t *testing.T) {
 		},
 	})
 
-	spec := map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}}
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--as", "bot", "--jq", ".data.items[].name"})
 
@@ -561,10 +882,10 @@ func TestServiceMethod_JqFilter_AppliesExpression(t *testing.T) {
 
 func TestServiceMethod_JqAndFormatConflict(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET"}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET"})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--jq", ".data", "--format", "ndjson", "--as", "bot"})
 
@@ -579,10 +900,10 @@ func TestServiceMethod_JqAndFormatConflict(t *testing.T) {
 
 func TestServiceMethod_JqInvalidExpression(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	spec := map[string]interface{}{
+	spec := meta.ServiceFromMap(map[string]interface{}{
 		"name": "svc", "servicePath": "/open-apis/svc/v1",
-	}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET"}
+	})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET"})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--jq", "invalid[", "--as", "bot"})
 
@@ -611,8 +932,8 @@ func TestServiceMethod_PageAll_WithJq(t *testing.T) {
 		},
 	})
 
-	spec := map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"}
-	method := map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}}
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--as", "bot", "--page-all", "--jq", ".data.items[].id"})
 
@@ -628,10 +949,55 @@ func TestServiceMethod_PageAll_WithJq(t *testing.T) {
 	}
 }
 
+func TestServiceMethod_PageAll_WithJqBusinessErrorOutputsRawResponse(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-spjq-err", AppSecret: "test-secret-spjq-err", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 230027, "msg": "user not authorized",
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
+	cmd.SetArgs([]string{"--as", "bot", "--page-all", "--jq", ".data.items[].id"})
+
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error for non-zero code")
+	}
+	requireProblem(t, err, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 230027)
+	var permErr *errs.PermissionError
+	if !errors.As(err, &permErr) {
+		t.Fatalf("expected PermissionError, got %T: %v", err, err)
+	}
+	if !strings.Contains(stdout.String(), "230027") || !strings.Contains(stdout.String(), "user not authorized") {
+		t.Fatalf("expected raw error response on stdout, got: %s", stdout.String())
+	}
+	if strings.Contains(stdout.String(), `"ok": true`) || strings.Contains(stdout.String(), `"ok":true`) {
+		t.Fatalf("unexpected success envelope on error path: %s", stdout.String())
+	}
+}
+
+func requireProblem(t *testing.T, err error, category errs.Category, subtype errs.Subtype, code int) {
+	t.Helper()
+	p, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("expected typed error, got %T: %v", err, err)
+	}
+	if p.Category != category || p.Subtype != subtype || p.Code != code {
+		t.Fatalf("problem = %s/%s/%d, want %s/%s/%d", p.Category, p.Subtype, p.Code, category, subtype, code)
+	}
+}
+
 // ── file upload ──
 
-func imImageMethod() map[string]interface{} {
-	return map[string]interface{}{
+func imImageMethod() meta.Method {
+	return meta.FromMap(map[string]interface{}{
 		"path":       "images",
 		"httpMethod": "POST",
 		"requestBody": map[string]interface{}{
@@ -645,14 +1011,14 @@ func imImageMethod() map[string]interface{} {
 			},
 		},
 		"accessTokens": []interface{}{"user", "tenant"},
-	}
+	})
 }
 
-func imSpec() map[string]interface{} {
-	return map[string]interface{}{
+func imSpec() meta.Service {
+	return meta.ServiceFromMap(map[string]interface{}{
 		"name":        "im",
 		"servicePath": "/open-apis/im/v1",
-	}
+	})
 }
 
 func TestServiceMethod_FileFlagRegistered(t *testing.T) {
@@ -684,7 +1050,7 @@ func TestServiceMethod_FileFlagNotRegisteredForGET(t *testing.T) {
 		},
 	}
 	f, _, _, _ := cmdutil.TestFactory(t, testConfig)
-	cmd := NewCmdServiceMethod(f, imSpec(), getMethod, "get", "images", nil)
+	cmd := NewCmdServiceMethod(f, imSpec(), meta.FromMap(getMethod), "get", "images", nil)
 	flag := cmd.Flags().Lookup("file")
 	if flag != nil {
 		t.Fatal("expected --file flag NOT to be registered for GET method")
@@ -752,7 +1118,7 @@ func TestDetectFileFields(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got := detectFileFields(tt.method)
+			got := detectFileFields(meta.FromMap(tt.method))
 			if len(got) != len(tt.want) {
 				t.Errorf("detectFileFields() = %v, want %v", got, tt.want)
 				return
@@ -771,7 +1137,7 @@ func TestServiceMethod_JsonFlag_Accepted(t *testing.T) {
 
 	var captured *ServiceMethodOptions
 	cmd := NewCmdServiceMethod(f, driveSpec(),
-		map[string]interface{}{"description": "desc", "httpMethod": "GET"}, "list", "files",
+		meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "GET"}), "list", "files",
 		func(opts *ServiceMethodOptions) error {
 			captured = opts
 			return nil

cmd/unknown_subcommand_test.go

@@ -11,6 +11,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/output"
 )
@@ -126,29 +127,20 @@ func TestUnknownSubcommandRunE_FlagBeforeSubcommandIsStructured(t *testing.T) {
 		t.Errorf("error = %q, want it to mention an unknown flag", err.Error())
 	}
 
-	// The detail must stay schema-compatible with flagDidYouMean's unknown_flag
-	// (same Type → same keys), so a consumer keyed on Type reads a stable shape.
-	exitErr, ok := err.(*output.ExitError)
-	if !ok || exitErr.Detail == nil {
-		t.Fatalf("expected *output.ExitError with Detail, got %T", err)
+	// Typed surface: a validation error (exit 2) whose Params carries the
+	// offending flag so an agent can recover the token without parsing prose.
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	if exitErr.Detail.Type != "unknown_flag" {
-		t.Errorf("detail.Type = %q, want unknown_flag", exitErr.Detail.Type)
+	if verr.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
 	}
-	detail, ok := exitErr.Detail.Detail.(map[string]any)
-	if !ok {
-		t.Fatalf("expected detail to be map[string]any, got %T", exitErr.Detail.Detail)
+	if output.ExitCodeOf(err) != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d", output.ExitCodeOf(err), output.ExitValidation)
 	}
-	if detail["unknown"] != "--badflag" {
-		t.Errorf("detail.unknown = %v, want --badflag", detail["unknown"])
-	}
-	if got, _ := detail["unknown_flags"].([]string); len(got) != 1 || got[0] != "--badflag" {
-		t.Errorf("detail.unknown_flags = %v, want [--badflag]", detail["unknown_flags"])
-	}
-	for _, key := range []string{"suggestions", "valid_flags"} {
-		if _, present := detail[key]; !present {
-			t.Errorf("detail.%s missing; must be present (empty) to match the unknown_flag schema", key)
-		}
+	if len(verr.Params) != 1 || verr.Params[0].Name != "--badflag" {
+		t.Errorf("params = %v, want one entry named --badflag", verr.Params)
 	}
 }
 
@@ -172,25 +164,21 @@ func TestUnknownSubcommandRunE_ValidFlagWithoutSubcommandIsStructured(t *testing
 	if err == nil {
 		t.Fatal("expected a structured missing_subcommand error, got nil (help fallthrough)")
 	}
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	if exitErr.Code != output.ExitValidation {
-		t.Errorf("exit code = %d, want %d", exitErr.Code, output.ExitValidation)
+	if output.ExitCodeOf(err) != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d", output.ExitCodeOf(err), output.ExitValidation)
 	}
-	if exitErr.Detail == nil || exitErr.Detail.Type != "missing_subcommand" {
-		t.Fatalf("detail.Type = %v, want missing_subcommand", exitErr.Detail)
+	if !strings.Contains(verr.Message, "missing subcommand") {
+		t.Errorf("message = %q, want it to mention a missing subcommand", verr.Message)
 	}
-	detail, ok := exitErr.Detail.Detail.(map[string]any)
-	if !ok {
-		t.Fatalf("detail is not a map: %#v", exitErr.Detail.Detail)
+	if len(verr.Params) != 1 || verr.Params[0].Name != "--query" {
+		t.Errorf("params = %v, want one entry named --query", verr.Params)
 	}
-	if flags, _ := detail["flags"].([]string); len(flags) != 1 || flags[0] != "--query" {
-		t.Errorf("detail.flags = %v, want [--query]", detail["flags"])
-	}
-	if detail["command_path"] != "lark-cli drive" {
-		t.Errorf("detail.command_path = %v, want lark-cli drive", detail["command_path"])
+	if !strings.Contains(verr.Message, "lark-cli drive") {
+		t.Errorf("message = %q, want it to name the group path", verr.Message)
 	}
 }
 
@@ -241,45 +229,23 @@ func TestUnknownSubcommandRunE_UnknownReturnsStructuredError(t *testing.T) {
 		t.Fatal("expected error for unknown subcommand")
 	}
 
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	if exitErr.Code != output.ExitValidation {
-		t.Errorf("expected exit code %d, got %d", output.ExitValidation, exitErr.Code)
+	if output.ExitCodeOf(err) != output.ExitValidation {
+		t.Errorf("expected exit code %d, got %d", output.ExitValidation, output.ExitCodeOf(err))
 	}
-	if exitErr.Detail == nil {
-		t.Fatal("expected ExitError to carry Detail")
+	if !strings.Contains(verr.Message, `"+bogus"`) {
+		t.Errorf("message should echo the unknown token, got %q", verr.Message)
 	}
-	if exitErr.Detail.Type != "unknown_subcommand" {
-		t.Errorf("expected Detail.Type=unknown_subcommand, got %q", exitErr.Detail.Type)
-	}
-	if !strings.Contains(exitErr.Detail.Message, `"+bogus"`) {
-		t.Errorf("message should echo the unknown token, got %q", exitErr.Detail.Message)
+	if !strings.Contains(verr.Message, "lark-cli drive") {
+		t.Errorf("message should name the group path, got %q", verr.Message)
 	}
 	// "+bogus" has no close neighbor among drive's subcommands, so the hint falls
-	// back to pointing at --help; the full machine-readable list lives in
-	// detail.available below (which also excludes hidden commands).
-	if !strings.Contains(exitErr.Detail.Hint, "--help") {
-		t.Errorf("hint should guide to --help when there is no suggestion, got %q", exitErr.Detail.Hint)
-	}
-
-	detail, ok := exitErr.Detail.Detail.(map[string]any)
-	if !ok {
-		t.Fatalf("expected Detail.Detail to be map[string]any, got %T", exitErr.Detail.Detail)
-	}
-	if detail["unknown"] != "+bogus" {
-		t.Errorf("detail.unknown should be +bogus, got %v", detail["unknown"])
-	}
-	if detail["command_path"] != "lark-cli drive" {
-		t.Errorf("detail.command_path should be %q, got %v", "lark-cli drive", detail["command_path"])
-	}
-	available, ok := detail["available"].([]string)
-	if !ok {
-		t.Fatalf("detail.available should be []string, got %T", detail["available"])
-	}
-	if len(available) != 3 {
-		t.Errorf("expected 3 available entries (hidden excluded), got %d: %v", len(available), available)
+	// back to pointing at --help (suggestions, when present, are folded into hint).
+	if !strings.Contains(verr.Hint, "--help") {
+		t.Errorf("hint should guide to --help when there is no suggestion, got %q", verr.Hint)
 	}
 }
 
@@ -288,13 +254,12 @@ func TestUnknownSubcommandRunE_NestedResourceGroup(t *testing.T) {
 	installUnknownSubcommandGuard(root)
 
 	err := files.RunE(files, []string{"bogus"})
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError on nested group, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError on nested group, got %T", err)
 	}
-	if exitErr.Detail.Detail.(map[string]any)["command_path"] != "lark-cli drive files" {
-		t.Errorf("command_path should reflect the nested resource, got %v",
-			exitErr.Detail.Detail.(map[string]any)["command_path"])
+	if !strings.Contains(verr.Message, "lark-cli drive files") {
+		t.Errorf("message should reflect the nested resource path, got %q", verr.Message)
 	}
 }
 
@@ -337,10 +302,10 @@ func TestAvailableSubcommandNames_SplitsDeprecatedGroup(t *testing.T) {
 	}
 }
 
-// unknownSubcommandRunE must split current vs deprecated subcommands into
-// separate detail buckets, while suggestions still rank across both so a
-// mistyped legacy alias resolves.
-func TestUnknownSubcommandRunE_SplitsDeprecatedBucket(t *testing.T) {
+// unknownSubcommandRunE ranks suggestions across both current and deprecated
+// subcommands so a mistyped legacy alias resolves; the closest match is folded
+// into the hint.
+func TestUnknownSubcommandRunE_SuggestsAcrossDeprecatedBucket(t *testing.T) {
 	svc := &cobra.Command{Use: "sheets"}
 	svc.AddGroup(&cobra.Group{ID: cmdutil.DeprecatedGroupID, Title: "Deprecated"})
 	svc.AddCommand(
@@ -349,31 +314,26 @@ func TestUnknownSubcommandRunE_SplitsDeprecatedBucket(t *testing.T) {
 	)
 
 	err := unknownSubcommandRunE(svc, []string{"+reat"})
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T", err)
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	detail, ok := exitErr.Detail.Detail.(map[string]any)
-	if !ok {
-		t.Fatalf("detail is not a map: %#v", exitErr.Detail.Detail)
+	// "+reat" is closest to the deprecated +read: the candidate must surface
+	// both as a machine-readable param suggestion (for agent retry) and in the
+	// hint, proving ranking spans the deprecated bucket.
+	if len(verr.Params) != 1 || verr.Params[0].Name != "+reat" {
+		t.Fatalf("params = %v, want one entry named +reat (the offending subcommand)", verr.Params)
 	}
-
-	if available, _ := detail["available"].([]string); len(available) != 1 || available[0] != "+cells-get" {
-		t.Errorf("available = %v, want [+cells-get]", available)
-	}
-	deprecated, ok := detail["deprecated"].([]string)
-	if !ok || len(deprecated) != 1 || deprecated[0] != "+read" {
-		t.Errorf("deprecated = %v, want [+read]", deprecated)
-	}
-	// suggestions rank across both buckets: "+reat" is closest to +read.
-	suggestions, _ := detail["suggestions"].([]string)
-	found := false
-	for _, s := range suggestions {
+	foundSuggestion := false
+	for _, s := range verr.Params[0].Suggestions {
 		if s == "+read" {
-			found = true
+			foundSuggestion = true
 		}
 	}
-	if !found {
-		t.Errorf("suggestions %v should include +read (typo target)", suggestions)
+	if !foundSuggestion {
+		t.Errorf("Params[0].Suggestions should include +read, got %v", verr.Params[0].Suggestions)
+	}
+	if !strings.Contains(verr.Hint, "+read") {
+		t.Errorf("hint %q should suggest +read (typo target across deprecated bucket)", verr.Hint)
 	}
 }

cmd/update/update.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/output"
@@ -132,12 +133,14 @@ func updateRun(opts *UpdateOptions) error {
 	// 1. Fetch latest version
 	latest, err := fetchLatest()
 	if err != nil {
-		return reportError(opts, io, output.ExitNetwork, "network", "failed to check latest version: %s", err)
+		return reportError(opts, io, "network",
+			errs.NewNetworkError(errs.SubtypeNetworkTransport, "failed to check latest version: %s", err).WithCause(err))
 	}
 
 	// 2. Validate version format
 	if update.ParseVersion(latest) == nil {
-		return reportError(opts, io, output.ExitInternal, "update_error", "invalid version from registry: %s", latest)
+		return reportError(opts, io, "update_error",
+			errs.NewInternalError(errs.SubtypeInvalidResponse, "invalid version from registry: %s", latest))
 	}
 
 	// 3. Compare versions
@@ -166,15 +169,18 @@ func updateRun(opts *UpdateOptions) error {
 
 // --- Output helpers ---
 
-func reportError(opts *UpdateOptions, io *cmdutil.IOStreams, exitCode int, errType, format string, args ...interface{}) error {
-	msg := fmt.Sprintf(format, args...)
+// reportError emits the failure on the requested surface: JSON mode prints the
+// {ok:false, error:{type, message}} envelope to stdout and signals the typed
+// error's exit code bare; human mode returns the typed error for the
+// dispatcher to render.
+func reportError(opts *UpdateOptions, io *cmdutil.IOStreams, errType string, typedErr errs.TypedError) error {
 	if opts.JSON {
 		output.PrintJson(io.Out, map[string]interface{}{
-			"ok": false, "error": map[string]interface{}{"type": errType, "message": msg},
+			"ok": false, "error": map[string]interface{}{"type": errType, "message": typedErr.ProblemDetail().Message},
 		})
-		return output.ErrBare(exitCode)
+		return output.ErrBare(output.ExitCodeOf(typedErr))
 	}
-	return output.Errorf(exitCode, errType, "%s", msg)
+	return typedErr
 }
 
 func reportCheckResult(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, canAutoUpdate bool) error {
@@ -228,7 +234,8 @@ func doManualUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest stri
 func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, updater *selfupdate.Updater) error {
 	restore, err := updater.PrepareSelfReplace()
 	if err != nil {
-		return reportError(opts, io, output.ExitAPI, "update_error", "failed to prepare update: %s", err)
+		return reportError(opts, io, "update_error",
+			errs.NewAPIError(errs.SubtypeUnknown, "failed to prepare update: %s", err).WithCause(err))
 	}
 
 	if !opts.JSON {

cmd/update/update_test.go

@@ -14,6 +14,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
@@ -334,13 +335,88 @@ func TestUpdateFetchError_Human(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected non-nil error, got nil")
 	}
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
+	var netErr *errs.NetworkError
+	if !errors.As(err, &netErr) {
+		t.Fatalf("expected *errs.NetworkError, got %T: %v", err, err)
 	}
-	if exitErr.Code != output.ExitNetwork {
-		t.Errorf("expected ExitNetwork (%d), got %d", output.ExitNetwork, exitErr.Code)
+	if netErr.Subtype != errs.SubtypeNetworkTransport {
+		t.Errorf("subtype = %q, want %q", netErr.Subtype, errs.SubtypeNetworkTransport)
 	}
+	if got := output.ExitCodeOf(err); got != output.ExitNetwork {
+		t.Errorf("expected ExitNetwork (%d), got %d", output.ExitNetwork, got)
+	}
+}
+
+// TestUpdateInvalidVersion_Human verifies a malformed registry version surfaces
+// as a typed internal error in human mode, keeping the legacy exit code 5.
+func TestUpdateInvalidVersion_Human(t *testing.T) {
+	f, _, _ := newTestFactory(t)
+	cmd := NewCmdUpdate(f)
+	cmd.SetArgs([]string{})
+
+	origFetch := fetchLatest
+	fetchLatest = func() (string, error) { return "not-a-version", nil }
+	defer func() { fetchLatest = origFetch }()
+
+	cmd.SilenceErrors = true
+	cmd.SilenceUsage = true
+
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected non-nil error, got nil")
+	}
+	var intErr *errs.InternalError
+	if !errors.As(err, &intErr) {
+		t.Fatalf("expected *errs.InternalError, got %T: %v", err, err)
+	}
+	if intErr.Subtype != errs.SubtypeInvalidResponse {
+		t.Errorf("subtype = %q, want %q", intErr.Subtype, errs.SubtypeInvalidResponse)
+	}
+	if got := output.ExitCodeOf(err); got != output.ExitInternal {
+		t.Errorf("expected ExitInternal (%d), got %d", output.ExitInternal, got)
+	}
+}
+
+// TestReportError pins reportError's two surfaces after the typed migration:
+// human mode returns the typed error unchanged; JSON mode prints the legacy
+// {ok:false, error:{type, message}} envelope and exits bare with the typed
+// error's exit code (parity with the legacy explicit exit-code argument).
+func TestReportError(t *testing.T) {
+	t.Run("human mode returns the typed error", func(t *testing.T) {
+		f, _, _ := newTestFactory(t)
+		typed := errs.NewAPIError(errs.SubtypeUnknown, "failed to prepare update: disk full")
+		err := reportError(&UpdateOptions{JSON: false}, f.IOStreams, "update_error", typed)
+		var apiErr *errs.APIError
+		if !errors.As(err, &apiErr) {
+			t.Fatalf("expected *errs.APIError, got %T: %v", err, err)
+		}
+		if apiErr != typed {
+			t.Errorf("reportError must return the typed error unchanged")
+		}
+		if got := output.ExitCodeOf(err); got != output.ExitAPI {
+			t.Errorf("exit code = %d, want %d (ExitAPI, legacy parity)", got, output.ExitAPI)
+		}
+	})
+
+	t.Run("json mode prints envelope and exits bare with typed code", func(t *testing.T) {
+		f, stdout, _ := newTestFactory(t)
+		typed := errs.NewNetworkError(errs.SubtypeNetworkTransport, "failed to check latest version: timeout")
+		err := reportError(&UpdateOptions{JSON: true}, f.IOStreams, "network", typed)
+		var bareErr *output.BareError
+		if !errors.As(err, &bareErr) {
+			t.Fatalf("expected bare *output.BareError, got %T: %v", err, err)
+		}
+		if bareErr.Code != output.ExitNetwork {
+			t.Errorf("bare exit code = %d, want %d", bareErr.Code, output.ExitNetwork)
+		}
+		out := stdout.String()
+		if !strings.Contains(out, `"type": "network"`) && !strings.Contains(out, `"type":"network"`) {
+			t.Errorf("JSON envelope missing type, got: %s", out)
+		}
+		if !strings.Contains(out, "failed to check latest version: timeout") {
+			t.Errorf("JSON envelope missing message, got: %s", out)
+		}
+	})
 }
 
 func TestUpdateInvalidVersion_JSON(t *testing.T) {
@@ -503,12 +579,12 @@ func TestUpdateNpmVerifyFail_JSON_NoRestoreHintWhenBackupUnavailable(t *testing.
 	if err == nil {
 		t.Fatal("expected verification failure")
 	}
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("expected *output.ExitError, got %T: %v", err, err)
+	var bareErr *output.BareError
+	if !errors.As(err, &bareErr) {
+		t.Fatalf("expected *output.BareError, got %T: %v", err, err)
 	}
-	if exitErr.Code != output.ExitAPI {
-		t.Fatalf("expected ExitAPI (%d), got %d", output.ExitAPI, exitErr.Code)
+	if bareErr.Code != output.ExitAPI {
+		t.Fatalf("expected ExitAPI (%d), got %d", output.ExitAPI, bareErr.Code)
 	}
 
 	out := stdout.String()

docs/specs/sheet-history-revert/spec.md

@@ -0,0 +1,305 @@
+---
+req_id: sheet-history-revert
+mode: from-prd
+tracks: [be]
+created_at: 2026-06-23T13:09:08Z
+---
+
+> ⚠️ **请勿直接编辑此文档**
+> 修改请通过 `/ccm-harness:draft-spec sheet-history-revert "<变更描述>"`（路由器会进入 update capability）
+> 手改不会被 check-spec-drift 放过，且会破坏 Frozen 快照关联性
+> 本文档由 /ccm-harness:draft-spec 生成于 2026-06-23T13:09:08Z；req-id：sheet-history-revert
+
+---
+
+# Sheet 历史版本查询与回滚
+
+<!-- BEGIN generated overview — scripts/render_spec_overview.py 自动生成，勿手改；改 spec 请走 /ccm-harness:draft-spec <req-id> "<变更>"（update） -->
+## 方案概览 / TL;DR
+
+> 本段由机器从下方子任务字段**确定性生成**，供快速把握方案；**权威细节仍以各子任务 `yaml` 块为准**。
+
+- **需求** `sheet-history-revert` ｜ 模式 `from-prd` ｜ 端 BE
+- **规模** 5 BE ｜ **涉及 PSM** `tooling.lark_cli`, `tooling.sheet_skill_spec`, `sheet.facade.agg`, `bear.server.sheet_data` ｜ **Thrift 影响** 无 ×5
+
+| 子任务 | 一句话 | 关键信息 |
+|---|---|---|
+| BE-1 | lark-cli `+history-list` 历史记录列表 shortcut | `tooling.lark_cli` · thrift:无 · `history_list[read]（callTool tools/invoke_read；内部对接 /space/api/v3/sheet/histories）` |
+| BE-2 | lark-cli `+history-revert` 与 `+history-revert-status` 回滚流 shortcut | `tooling.lark_cli` · thrift:无 · `history_revert[write] / history_revert_status[read]（callTool tools/invoke_write\|read；内部对接 /space/api/v2/sheet/recover、/api/v2/sheet/recover/status）` |
+| BE-3 | sheet-skill-spec 上游事实源（skill 正文 + shortcut/flag 定义） | `tooling.sheet_skill_spec` · thrift:无 · `A` |
+| BE-4 | sheet-facade-agg 在现有 ToolsCall 上新增 3 个历史/回滚工具 | `sheet.facade.agg` · thrift:无 · `history_list[read] / history_revert[write] / history_revert_status[read]` |
+| BE-5 | sheet/data 透传 scene 并在 RecoverMsg 上新增 Scene 字段 | `bear.server.sheet_data` · thrift:无 · `RecoverHistory / QueryRecoverStatus（复用）；MQ RecoverMsg 加 Scene 字段` |
+
+> 完整字段见各子任务 `yaml` 块。
+<!-- END generated overview -->
+
+## 概述与范围
+
+为 `lark-cli` 的 lark-sheets 能力补齐**电子表格历史版本查询与回滚**，新增 3 个 shortcut，让 AI / 用户可以列出某张表的历史版本、回滚到指定版本、并查询回滚的异步状态。三个 shortcut 封装的是飞书电子表格已上线的 space 接口（见下表的「前端接口参考」），本需求不新建产品能力，只是把它们包装成稳定、AI 友好的命令面。
+
+| 功能 | shortcut | 前端接口参考（搜索 lark/idl） | 实现差异点 |
+|---|---|---|---|
+| 查历史记录列表 | `+history-list` | `/space/api/v3/sheet/histories` | ① 仅返回 `minor_histories` 列表；② `minor_histories` 的 `id` 字段重命名为 `history_version_id`；③ 每条仅保留 `history_version_id` / `create_time`（序列化成 AI 优化的可读格式）/ `action` / `all_block_revision` 四个字段 |
+| 历史记录回滚 | `+history-revert` | `/space/api/v2/sheet/recover` | 传入 `+history-list` 拿到的 `history_version_id`，回滚到指定版本 |
+| 查询回滚状态 | `+history-revert-status` | `/api/v2/sheet/recover/status` | 查询 `+history-revert` 发起的异步回滚的当前状态 |
+
+**范围内**：
+- `larksuite/cli` 仓新增 3 个 sheets shortcut（含 `+history-list` 的响应裁剪 / 字段重命名 / 时间格式转换逻辑）。
+- `ee/sheet-skill-spec` 上游事实源补 skill 正文与 shortcut/flag 定义，经其工作流 `sync:cli` 同步到 `larksuite/cli` 的 `skills/lark-sheets/` 与 `shortcuts/sheets/data/`。
+- `ee/sheet-facade-agg` **复用现有 `ToolsCall` 接口**，在其上新增 3 个工具（`history_list` / `history_revert` / `history_revert_status`）；并在**回滚消息消费侧**（消费 `sheet/data` 产出的 RecoverMsg）按 scene 给 `memberId` 赋值（doubao=10，lark-cli=11）后构造 recover cs。
+- `sheet/data`（`bear.server.sheet_data`）把 scene 从入口透传到 `RecoverHistory`，并在产出的 `RecoverMsg`（MQ 消息）上**新增 `Scene` 字段**，供 agg 消费时区分场景。
+
+**范围外**：
+- 历史版本的底层存储 / 快照 / 过期清理逻辑、`RecoverHistory` 的回滚业务语义（`bear.server.sheet_data` 已有，本需求仅透传 scene + 加 MQ 字段，不改回滚逻辑本身）。
+- 历史版本 diff、可视化、权限模型变更等产品侧扩展。
+- `doubao-office` 消费方的同步（`sheet-skill-spec` 另有 `sync:doubao`，本需求不涉及）。
+
+## 服务拓扑与 PSM 变更判定表
+
+**调用链路（目标形态）**：
+
+```
+用户 / AI ──> lark-cli (+history-list / +history-revert / +history-revert-status)
+                   │  callTool → POST /open-apis/sheet_ai/v2/.../tools/invoke_read|write（scene 随入口确定）
+                   ▼
+        sheet.facade.agg  ToolsCall（复用现有接口，新增 3 个工具:
+                          history_list[read] / history_revert[write] / history_revert_status[read]）
+        ├─ history_list      ──> 拉历史列表（裁剪 minor_histories / 4 字段 / AI 时间格式）
+        ├─ history_revert ───scene(ctx 透传)──> bear.server.sheet_data: RecoverHistory
+        │                                          │ service.RecoverHistory → SendRecoverMsg
+        │                                          ▼
+        │                                   MQ: RecoverMsg（新增 Scene 字段）
+        │                                          ▼
+        │   sheet.facade.agg  RecoverMsg 消费者 ── 读 Scene → memberId(doubao=10/lark-cli=11)
+        │                                          → 构造 recover cs → 调既有 recover 下游
+        └─ history_revert_status ──> bear.server.sheet_data: QueryRecoverStatus(transactionID)
+```
+
+`lark-cli` 现有 sheets shortcut 统一通过 `callTool`（`shortcuts/sheets/sheet_ai_api.go`）走 One-OpenAPI 的 `tools/invoke_read|write` 入口（`ToolKindRead` / `ToolKindWrite`），由 `sheet.facade.agg` 的 `OpenAPIToolCallRead/Write`（`biz/handler/lark_cli.go`，底层复用 `aiService.ToolsCall`）按 `tool_name` 分发。本需求的 3 个 shortcut 即按此路径新增 3 个工具，而非直连 space 接口或新增独立 OpenAPI 路由。
+
+**回滚为异步两段式**：`history_revert` 工具调 `sheet/data` 的 `RecoverHistory`（`biz/history/service/recover.go`），后者通过 `SendRecoverMsg`（`infra/mq/producer/recover.go` 的 `RecoverMsg`）投递回滚消息并返回 `transactionID`；agg 侧的 RecoverMsg 消费者真正构造 recover cs，并在此时按 scene 给 `memberId` 赋值。`history_revert_status` 工具走 `sheet/data` 的 `QueryRecoverStatus(transactionID)` 查询异步结果。scene 从 ToolsCall 入口经 **ctx 透传**（沿用既有 `utils.WithSceneDoubao(ctx)` 范式）到 `RecoverHistory`，再写入 `RecoverMsg.Scene` 字段，使 agg 消费时可区分 doubao / lark-cli。
+
+**PSM 变更判定表**：
+
+| PSM | 需要代码变更？ | 变更内容 | 不变更原因 |
+|---|---|---|---|
+| `tooling.lark_cli`（`larksuite/cli`，无服务 PSM） | 是 | 新增 3 个 shortcut + `+history-list` 响应 transform | — |
+| `tooling.sheet_skill_spec`（`ee/sheet-skill-spec`，无服务 PSM） | 是 | 新增 lark-sheets skill 正文 + 3 个 shortcut/flag 定义，生成后同步到 cli | — |
+| `sheet.facade.agg`（`ee/sheet-facade-agg`） | 是 | ① 现有 `ToolsCall` 新增 3 个工具（`history_list[read]` / `history_revert[write]` / `history_revert_status[read]`）；② `history_revert` 工具调 `sheet/data` 时透传 scene（ctx）；③ **RecoverMsg 消费者**读 `Scene` 字段，按 scene 给 `memberId` 赋值后构造 recover cs。**无新 thrift**（工具按 `tool_name`+JSON 注册，scene 走 ctx baggage） | — |
+| `bear.server.sheet_data`（`sheet/data`） | 是 | scene 从入口透传到 `RecoverHistory`（`biz/history/service/recover.go`），并在 `RecoverMsg`（`infra/mq/producer/recover.go`）上**新增 `Scene` 字段**随消息投递。`RecoverMsg` 是 JSON Go struct，加字段**非 thrift**；scene 透传走 ctx baggage | 回滚 / 快照业务语义不变（`RestoreHistorySnapshot` / `QueryRecoverStatus` 等复用） |
+
+> **`memberId` 按 scene 赋值（实现硬约束，跨 sheet/data + agg）**：scene 区分 doubao 与 lark-cli（沿用既有 `utils.WithSceneDoubao(ctx)` 范式）。本需求要求 scene 从 ToolsCall 入口一路透传：
+> 1. agg `history_revert` 工具调用 `sheet/data.RecoverHistory` 时，把 scene 经 ctx 透传；
+> 2. `sheet/data` 在产出的 `RecoverMsg` 上写入 `Scene` 字段，随 MQ 投递；
+> 3. **agg 的 RecoverMsg 消费者**在真正构造 recover cs 时，读 `Scene` 给 `memberId` 赋值——doubao 场景 = `10`，其他（lark-cli）场景 = `11`。
+>
+> memberId 赋值发生在 **agg 消费侧**（不是同步 ToolsCall 调用栈，因为回滚是异步消息驱动）。错误的 memberId 会导致回滚归属错误的调用方身份（审计 / 权限相关）。`RecoverMsg.MemberId` 字段已存在，但本需求要求按 scene 正确赋值并据此区分两个消费方。
+
+## 后端 / Tooling 子任务
+
+> 说明：`lark-cli` 与 `sheet-skill-spec` 均属 Tooling，按 ccm-harness 约定建 BE-*，`thrift_impact: 无`。本需求无前端（FE）子任务。
+
+### BE-1: lark-cli `+history-list` 历史记录列表 shortcut
+
+```yaml
+psm: tooling.lark_cli
+repo: larksuite/cli
+module: shortcuts/sheets
+be_deploy_required: false
+thrift_impact: 无
+api: facade-agg ToolsCall::history_list[read]（callTool tools/invoke_read；内部对接 /space/api/v3/sheet/histories）
+depends_on: [BE-4]
+estimate: 1.5d
+```
+
+**调用的下游服务**：经 `callTool(ToolKindRead, "history_list", ...)`（`shortcuts/sheets/sheet_ai_api.go`）走 `tools/invoke_read` 入口，由 facade-agg 的 `history_list` 工具内部对接 `/space/api/v3/sheet/histories`。入参：表格 token（沿用现有 sheets shortcut 的 `--spreadsheet-token` / `--token` 解析）。响应裁剪 / 字段重命名 / 时间格式可在 facade-agg 工具侧或 lark-cli 侧完成（见实现要点；以 AI 友好输出为准）。
+**实现要点（实现差异点落地）**：
+- 仅取响应中的 `minor_histories` 列表，丢弃其余顶层字段（如 major histories）。
+- 将每条 `minor_histories` 的 `id` 字段重命名输出为 `history_version_id`。
+- 每条仅保留 4 个字段：`history_version_id`、`create_time`、`action`、`all_block_revision`。
+- `create_time` 序列化成 AI 优化的可读格式（如本地时区可读时间串），而非裸 unix 时间戳。
+**验收场景**：
+- Given 一张有多个历史版本的电子表格，When 执行 `lark-cli sheets +history-list --token <t>`，Then 返回 JSON 数组，每条恰好含 `history_version_id` / `create_time` / `action` / `all_block_revision` 四个键，且 `create_time` 为可读格式。
+- Given 一张无历史记录的表格，When 执行 `+history-list`，Then 返回空列表且退码 0（不报错）。
+
+### BE-2: lark-cli `+history-revert` 与 `+history-revert-status` 回滚流 shortcut
+
+```yaml
+psm: tooling.lark_cli
+repo: larksuite/cli
+module: shortcuts/sheets
+be_deploy_required: false
+thrift_impact: 无
+api: facade-agg ToolsCall::history_revert[write] / history_revert_status[read]（callTool tools/invoke_write|read；内部对接 /space/api/v2/sheet/recover、/api/v2/sheet/recover/status）
+depends_on: [BE-1, BE-4, BE-5]
+estimate: 1.5d
+```
+
+**调用的下游服务**：
+- `+history-revert` → `callTool(ToolKindWrite, "history_revert", ...)`，agg 工具调 `sheet/data.RecoverHistory`（异步），返回 `transactionID`。
+- `+history-revert-status` → `callTool(ToolKindRead, "history_revert_status", ...)`，agg 工具调 `sheet/data.QueryRecoverStatus(transactionID)` 查异步结果。
+- 注：`memberId` 按 scene 赋值（doubao=10 / lark-cli=11）发生在 agg 的 **RecoverMsg 消费者**侧（见 BE-4 / BE-5），lark-cli 侧不感知；scene 由 callTool 入口（read/write）确定。
+**实现要点**：
+- `+history-revert` 的 `--history-version-id`（命名对齐 BE-1 的输出字段）为必填；缺失时在 Validate 阶段给出可执行错误提示。
+- 回滚为异步操作，`+history-revert` 返回受理结果，`+history-revert-status` 供轮询最终状态（成功 / 进行中 / 失败）。
+**验收场景**：
+- Given 由 `+history-list` 取得的合法 `history_version_id`，When 执行 `+history-revert --token <t> --history-version-id <id>`，Then 后端受理回滚并返回可被 `+history-revert-status` 查询的标识。
+- Given 一次已发起的回滚，When 轮询 `+history-revert-status`，Then 能区分「进行中 / 成功 / 失败」三种状态。
+- Given 缺省 `--history-version-id`，When 执行 `+history-revert`，Then 返回明确的参数缺失错误，不发起请求。
+
+### BE-3: sheet-skill-spec 上游事实源（skill 正文 + shortcut/flag 定义）
+
+```yaml
+psm: tooling.sheet_skill_spec
+repo: ee/sheet-skill-spec
+module: canonical-spec
+be_deploy_required: false
+thrift_impact: 无
+api: N/A
+depends_on: [BE-1, BE-2]
+estimate: 1d
+```
+
+**调用的下游服务**：无（构建期工作流）。
+**实现要点（按 `sheet-skill-spec` README 工作流）**：
+- 在飞书 base 表登记 3 个新 shortcut 的 tool ↔ shortcut 映射与 flag 定义，`npm run sync:tool-shortcut-map` 镜像入仓。
+- 在 `canonical-spec/references/<相关 skill>/cli-reference.md` 补三个 shortcut 的描述 / 示例 / Validate-DryRun-Execute 约束。
+- 跑 `npm run generate:all && npm run check:all` 验证，产出 `generated/lark-cli/skills/lark-sheets/` 与 `generated/lark-cli/data/{flag-defs.json,flag-schemas.json}`。
+- 跑 `npm run sync:cli` 把 generated 同步到 `larksuite/cli` 的 `skills/lark-sheets/`（mirror）与 `shortcuts/sheets/data/`（mirror），在 cli 仓作为 PR 提交。
+**边界**：skill 命名 / 切分 / 正文 / flag 定义一律先落 `sheet-skill-spec`，禁止直接改 cli 仓的 `generated`/`skills/lark-sheets/` 产物（README「对齐原则」）。
+**验收场景**：
+- Given 在 `sheet-skill-spec` 完成上述编辑，When 跑 `npm run check:all`，Then 全部门禁通过（generated 与 canonical 一致、map 与 base 表一致）。
+- Given 跑 `npm run sync:cli`，Then cli 仓 `skills/lark-sheets/` 与 `shortcuts/sheets/data/` 出现对应 3 个 shortcut 的 skill 正文与 flag 定义。
+
+### BE-4: sheet-facade-agg 在现有 ToolsCall 上新增 3 个历史/回滚工具
+
+```yaml
+psm: sheet.facade.agg
+repo: ee/sheet-facade-agg
+module: biz/handler
+be_deploy_required: true
+thrift_impact: 无
+api: ToolsCall::history_list[read] / history_revert[write] / history_revert_status[read]
+depends_on: []
+estimate: 1.5d
+```
+
+**调用的下游服务**：`sheet/data` 的 `RecoverHistory` / `QueryRecoverStatus`（见 BE-5）+ 既有历史查询；agg 的 RecoverMsg 消费者复用既有 recover 下游（`biz/service/spreadsheet.go::ProcessRecoverCs`、`model.RecoverParam`），不新增 thrift。
+**实现要点**：
+- **ToolsCall 扩展**：在现有 `ToolsCall` 框架（`biz/handler/handler.go::ToolsCall` / `biz/handler/lark_cli.go::OpenAPIToolCallRead|Write`）注册 3 个新工具：`history_list`（read）、`history_revert`（write）、`history_revert_status`（read），按 `constants.IsReadTool` / `IsWriteTool` 归类，从 `tools/invoke_read` / `invoke_write` 入口可达。
+- **scene 透传**：`history_revert` / `history_revert_status` 工具调 `sheet/data` 时，把 scene 经 ctx（沿用 `utils.WithSceneDoubao` 范式）透传下去，使 `sheet/data` 能写入 `RecoverMsg.Scene`。
+- **RecoverMsg 消费者按 scene 赋 memberId（硬约束）**：agg 消费 `sheet/data` 投递的 `RecoverMsg`、构造真正 recover cs 时，读 `RecoverMsg.Scene` 给 `memberId` 赋值——doubao = `10`，lark-cli = `11`。这是异步消费侧逻辑，不在同步 ToolsCall 调用栈。
+- `history_list` 工具对接历史列表查询；响应裁剪（仅 `minor_histories`、`id`→`history_version_id`、4 字段、`create_time` AI 友好格式）建议落在此工具侧（两个消费方共享，避免 lark-cli / doubao 双实现漂移）。
+**边界**：只在 ToolsCall 上加工具 + 改 RecoverMsg 消费者；不新增独立 OpenAPI 路由、不改 `ai.ToolsCallRequest` thrift 契约、不改 `RecoverHistory` 回滚业务语义。
+**验收场景**：
+- Given lark-cli 经 `tools/invoke_read` 调用 `history_list`，Then 返回裁剪后的 `minor_histories`（4 字段，`history_version_id` 命名）。
+- Given lark-cli（scene=lark-cli）经 `history_revert` 发起回滚，When agg 消费对应 RecoverMsg，Then 构造的 recover cs 中 `memberId == 11`；doubao 场景下同一路径 `memberId == 10`。
+- Given 已发起回滚，When 调用 `history_revert_status`，Then 经 `QueryRecoverStatus` 返回可区分的回滚状态。
+
+### BE-5: sheet/data 透传 scene 并在 RecoverMsg 上新增 Scene 字段
+
+```yaml
+psm: bear.server.sheet_data
+repo: sheet/data
+module: biz/history
+be_deploy_required: true
+thrift_impact: 无
+api: bear.server.sheet_data::RecoverHistory / QueryRecoverStatus（复用）；MQ RecoverMsg 加 Scene 字段
+depends_on: []
+estimate: 1d
+```
+
+**调用的下游服务**：复用既有回滚链路（`biz/history/service/recover.go::RecoverHistory` → `infra/mq/producer/recover.go::SendRecoverMsg`）。
+**实现要点**：
+- **scene 透传**：把 agg 经 ctx 传入的 scene 接住，贯穿 `RecoverHistory`（`biz/history/service/recover.go`）到 `RecoverMsg` 构造处。
+- **RecoverMsg 加 `Scene` 字段**：在 `infra/mq/producer/recover.go` 的 `RecoverMsg` struct 上新增 `Scene` 字段并在投递时赋值。`RecoverMsg` 是 JSON Go struct（`recoverProducer.NewMessage`），**加字段非 thrift**——`thrift_impact: 无`。
+- `QueryRecoverStatus` 与回滚业务语义保持不变，仅承载 scene 透传。
+**边界**：不改回滚 / 历史快照业务逻辑；只加 scene 透传与 `RecoverMsg.Scene` 字段。
+**scene 透传方式（已定）**：经 **ctx baggage**（`metainfo` / 沿用既有 `utils.WithSceneDoubao(ctx)` 范式）从 agg 透传到 `RecoverHistory`，**不**在 `RecoverHistoryReq` thrift 上加字段 → 零 IDL 变更，`thrift_impact: 无`。
+**验收场景**：
+- Given agg 以 scene=lark-cli 调 `RecoverHistory`，Then 投递的 `RecoverMsg.Scene` 标识 lark-cli；doubao 同理。
+- Given 回滚已发起，When `QueryRecoverStatus(transactionID)`，Then 返回回滚状态（语义与现状一致）。
+- Given lark-cli（scene=lark-cli）经 `tools/invoke_write` 调用 `history_revert`，Then 构造的 recover cs 中 `memberId == 11`；doubao 场景下同一工具 `memberId == 10`。
+- Given 已发起回滚，When 调用 `history_revert_status`，Then 返回可区分的回滚状态。
+
+## API 契约引用
+
+本需求三个接口均为飞书电子表格已上线 space 接口，契约以各仓库最新 master 为准；对应 thrift 定义按 PRD 提示在 `lark/idl` 中搜索确认（实现阶段补全精确路径）：
+
+- 查列表：`/space/api/v3/sheet/histories`（取 `minor_histories`）
+- 回滚：`/space/api/v2/sheet/recover`
+- 回滚状态：`/api/v2/sheet/recover/status`
+
+> 契约本体不进本 spec 正文；精确 `lark/idl/...thrift::Service::Method` 路径在实现阶段确认并回填到对应 BE-* 的 `api` 字段说明。
+
+## 验收场景（汇总）
+
+- 列表：`+history-list` 仅返回 `minor_histories`，每条恰好 4 个字段，`id` 重命名为 `history_version_id`，`create_time` 为 AI 优化可读格式。
+- 回滚：`+history-revert` → agg `history_revert` → `sheet/data.RecoverHistory`（异步），受理后返回可查询标识。
+- memberId/scene：agg 消费 `RecoverMsg` 构造 recover cs 时，按 `RecoverMsg.Scene` 赋 `memberId`——lark-cli=11、doubao=10（facade-agg 侧单测断言）。
+- 状态：`+history-revert-status` → `QueryRecoverStatus` 能查询并区分回滚的进行中 / 成功 / 失败。
+- skill 同步：`sheet-skill-spec` 生成产物经 `sync:cli` 落地到 cli 仓，`check:all` 全绿。
+- 三个 shortcut 在 cli 中遵循统一的 Validate / DryRun / Execute 三段约定与现有 sheets shortcut 一致。
+
+## 非功能要求与约束
+
+- **复用既有模式**：3 个 shortcut 必须沿用 `shortcuts/sheets` 现有的 token 解析（`--spreadsheet-token` / `--token` 别名）、错误封装（`errs`）、`callTool`（`tools/invoke_read|write`）调用与 DryRun 渲染范式，不另起调用框架。facade-agg 侧必须复用现有 `ToolsCall` 接口扩展工具，不新增独立 OpenAPI 路由。
+- **AI 友好输出**：`+history-list` 的字段裁剪与 `create_time` 可读格式是硬约束（PRD「实现差异点」），目的是降低 AI 消费成本。
+- **工作流约束**：skill 内容与 flag 定义的唯一事实源是 `ee/sheet-skill-spec`；cli 仓的 `skills/lark-sheets/` 与 `shortcuts/sheets/data/` 为同步产物，不手改。
+- **回滚为异步**：`+history-revert` 与 `+history-revert-status` 分离，调用方需理解「发起 → 轮询」两步语义。
+- **事实基准**：所有外部仓库事实（space 接口、facade-agg 路由、sheet_data 能力）以各仓库最新 master 为准。
+
+## 安全设计
+
+- security_knowledge_ref: UNCONFIGURED
+- 风险判断依据: 未配置安全知识库，待安全侧补齐。需关注点（供安全侧复核）：`+history-revert` 是**写 / 不可逆**操作（覆盖当前表格内容到历史版本），必须校验操作者对目标表格具备编辑 / 回滚权限；历史版本列表可能暴露协作者操作痕迹（`action` 字段），需确认读权限边界。
+- 身份归属风险（memberId/scene）: `memberId` 须按 scene 正确赋值（lark-cli=11 / doubao=10）。错配会使回滚操作归属错误的调用方身份，影响审计与权限判定——属安全/审计相关，须在 agg RecoverMsg 消费侧保证赋值正确。
+- 需要安全侧补充: 回滚操作的权限校验口径、历史 `action` 字段的可见性范围是否需脱敏、memberId 与真实操作者身份的映射是否需对齐审计要求。
+
+## Codegen Delivery Plan
+
+applicable: true
+
+### A. Branch Plan
+
+| `key` | value |
+|---|---|
+| `psm` | `sheet.facade.agg` |
+| `business_branch` | `feat/sheet-history-revert` |
+| `generated_branch` | `N/A` |
+| `idl_branch` | `N/A` |
+| `kitex_branch` | `N/A` |
+
+### B. Delivery Targets
+
+| repo | required | branch | artifact_paths | reason |
+|---|---|---|---|---|
+| larksuite/cli | yes | feat/sheet-history-revert | shortcuts/sheets/ , skills/lark-sheets/ | 3 个 shortcut 实现 + 同步落地的 skill 正文与 flag 数据 |
+| ee/sheet-skill-spec | yes | feat/sheet-history-revert | canonical-spec/references/ , generated/lark-cli/ | skill / flag 上游事实源，生成后 sync 到 cli |
+| ee/sheet-facade-agg | yes | feat/sheet-history-revert | biz/handler/ | 现有 ToolsCall 新增 3 个工具 + scene 透传 + RecoverMsg 消费者按 scene 赋 memberId |
+| sheet/data | yes | feat/sheet-history-revert | biz/history/ , infra/mq/producer/ | RecoverHistory 透传 scene + RecoverMsg 新增 Scene 字段（JSON，非 thrift） |
+
+### C. Generation Decision
+
+| `key` | value |
+|---|---|
+| `needs_kitex_gen` | no |
+| `needs_apacana` | no |
+| `needs_kite_via_sdp` | no |
+| `decision_basis` | facade-agg 复用现有 ToolsCall 框架按 tool_name 注册 3 个工具（JSON input，不动 ai.ToolsCallRequest thrift）；sheet/data 仅在 RecoverMsg（JSON Go struct）加 Scene 字段 + 经 ctx baggage 透传 scene，复用既有 RecoverHistory/QueryRecoverStatus，均非 thrift；lark-cli 经现有 callTool 包装。scene 已定走 ctx baggage（不加 RecoverHistoryReq thrift 字段），无新增/修改 kitex/apacana/SDP 契约 |
+
+### D. Branch Naming Rule
+
+业务分支统一用 `feat/sheet-history-revert`；本需求无 codegen，故 `generated_branch` / `idl_branch` / `kitex_branch` 均为 `N/A`。
+
+## thrift 变更需求清单
+
+无（按推荐实现路径）。三个接口的能力已存在；本需求的新增内容是：facade-agg 在 ToolsCall 上注册 3 个工具（`tool_name`+JSON，不动 `ai.ToolsCallRequest`）、sheet/data 在 `RecoverMsg`（JSON Go struct）上加 `Scene` 字段、scene 经 **ctx baggage** 透传——均不涉及 thrift。
+
+**scene 透传方式：已定为 ctx baggage**（`metainfo` / 沿用既有 `utils.WithSceneDoubao(ctx)` 范式），明确**不**在 `bear.server.sheet_data` 的 `RecoverHistoryReq` thrift 上加字段。故本需求确无任何 thrift struct / RPC method / enum 的新增或修改，Generation Decision 三路保持 `no`、无 codegen。
+
+## N. AI Capability Manifest
+
+applicable: false
+
+本需求为确定性 CLI 命令封装，不含 LLM / prompt 驱动的 AI 能力。`+history-list` 中「`create_time` 序列化成 AI 优化格式」仅指对机器/AI 更易读的时间字符串格式化，属确定性数据转换，非 AI capability。

errs/ERROR_CONTRACT.md

@@ -6,25 +6,16 @@ envelope on stderr; **protocol adapters** mapping CLI errors into MCP /
 OAuth shapes; and **framework + business code** producing errors. This file
 is the single source of truth for all three.
 
-This document describes the **typed authoring target**. The refactor lands
-in stages; some boundaries (e.g. `client.WrapDoAPIError`) still operate on
-legacy shapes today — see **Migration** for what is live in each stage.
-
-Migrating an `*output.ExitError` call site? See **Migration**. Something off
-in production? See **Troubleshooting**.
+Something off in production? See **Troubleshooting**.
 
 ## Invariants
 
 1. Every error belongs to exactly one **Category**. The set is closed
    (`errs/category.go`); adding a member requires deliberate review.
-2. Every **newly constructed** typed error has a **Subtype** — a stable
+2. Every typed error has a **Subtype** — a stable
    lowercase-with-underscores identifier declared in `errs/subtypes*.go`.
-   Undeclared subtypes fail CI. The constraint applies only to typed
-   `*errs.*` literals; stage-1 legacy `*core.ConfigError` flows via the
-   dispatcher's `asExitError` → legacy envelope path (not the typed
-   taxonomy) and is unaffected. `errcompat.PromoteConfigError` is a
-   stage-1 passthrough; its stage-2+ typed migration will subject the
-   promoted typed error to this Subtype constraint at that time.
+   Undeclared subtypes fail CI. Every error path constructs a typed
+   `*errs.*` error at its origin, so the constraint applies uniformly.
 3. **`Category` + `Subtype`** are wire-stable identifiers consumers may
    branch on. Renaming either is a breaking change.
 4. `Code` is the upstream numeric code when known (e.g. Lark API code).
@@ -35,11 +26,10 @@ in production? See **Troubleshooting**.
    unchanged across the `errors.As` / `errors.Unwrap` chain.
 7. For the typed-envelope path, exit codes derive from `Category` only
    via `output.ExitCodeForCategory` — including `SecurityPolicyError`,
-   which exits `6` via `CategoryPolicy`. Unmigrated `*output.ExitError`
-   producers still carry a hand-set `Code` until they finish migrating.
-   `output.ErrBare(code)` is the lone exception: a deliberate
-   predicate-command signal that bypasses the envelope (see
-   **Predicate commands** below).
+   which exits `6` via `CategoryPolicy`. `output.ErrBare(code)` is the
+   exception: it constructs an `*output.BareError`, a deliberate
+   silent-exit signal (stdout already carries the answer) that bypasses
+   the envelope (see **Predicate commands** below).
 
 ## Wire format
 
@@ -73,13 +63,14 @@ Typed errors render to **stderr** as one JSON object per process exit:
 | `error.hint` | informational | actionable recovery guidance |
 | `error.log_id` | informational | upstream request id (server-side trace) |
 | `error.retryable` | wire-stable | `true` when present; omitted when `false` |
+| `error.param` | per-Subtype-stable | single offending parameter (`ValidationError`); see **Validation parameters** |
+| `error.params` | per-Subtype-stable | per-parameter validation detail array (`ValidationError`); see **Validation parameters** |
 | per-Subtype extension fields | per-Subtype-stable | e.g. `missing_scopes`, `console_url`, `challenge_url` |
 
 `SecurityPolicyError` renders through the same typed envelope as every
 other category. `error.type` is `"policy"`, `error.subtype` is one of
 `challenge_required` / `access_denied`, and process exit is `6` via
-`CategoryPolicy`. The legacy `auth_error` envelope at exit `1` has been
-retired.
+`CategoryPolicy`.
 
 ## Categories
 
@@ -119,20 +110,21 @@ Canonical mapping: `internal/output/exitcode.go` `ExitCodeForCategory`.
      │
      ▼
   cmd/root.go handleRootError dispatches:
-     ├─ output.ErrBare(code)      → no envelope (stdout already written); exit = code
      ├─ typed (errs.ProblemOf)    → typed JSON envelope; exit = ExitCodeOf(err)
-     │     (includes *errs.SecurityPolicyError → policy envelope, exit 6)
-     ├─ *core.ConfigError         → promoted to typed via errcompat ↑
-     ├─ *output.ExitError         → legacy JSON envelope; exit = exitErr.Code
-     └─ untyped / Cobra error     → plain "Error: <msg>" (no envelope); exit 1
+     │     (includes *errs.SecurityPolicyError → policy envelope, exit 6;
+     │      *errs.ConfigError, constructed typed at origin)
+     ├─ *output.PartialFailureError → no stderr envelope (ok:false result already on stdout); exit = code
+     ├─ *output.BareError         → no envelope (stdout already written); exit = code
+     └─ Cobra usage error         → typed validation envelope (invalid_argument); exit 2
 ```
 
-Only the typed and `*output.ExitError` branches emit a JSON envelope on
-stderr. Untyped errors (including Cobra's "required flag missing" / unknown
-subcommand messages) print plain text and exit `1` — consumers must
-tolerate that fallback.
+The dispatcher emits a JSON envelope on stderr for both the typed branch and
+residual Cobra usage errors (missing required flag, unknown command,
+argument validation): the latter are classified into a typed validation
+envelope (`invalid_argument`) and exit `2`, matching the explicit flag and
+subcommand guards.
 
-### Predicate commands (`output.ErrBare`)
+### Predicate commands (`output.BareError`)
 
 A small class of commands is **predicates**: they answer a yes/no
 question and signal the answer through the shell exit code so callers
@@ -142,19 +134,27 @@ example — its `README` contract is `exit 0 = ok, 1 = missing`.
 These commands deliberately:
 
 1. write a structured JSON answer to **stdout** themselves, and
-2. return `output.ErrBare(exitCode)` to communicate the exit code to
-   the dispatcher without producing a `stderr` envelope.
+2. return `output.ErrBare(exitCode)` — an `*output.BareError` — to
+   communicate the exit code to the dispatcher without producing a
+   `stderr` envelope.
 
-`output.ErrBare` is **not** an error in the typed-envelope sense — it
-carries no category, subtype, or message. It is a one-bit output-
-control signal that lives outside the contract for the same reason
-`grep -q` / `diff` / `systemctl is-active` set non-zero exit codes
-without printing anything to stderr: pollution of stderr by a
+`*output.BareError` is **not** an error in the typed-envelope sense — it
+carries no category, subtype, or message, only an exit code. It is a
+one-bit output-control signal that lives outside the contract for the
+same reason `grep -q` / `diff` / `systemctl is-active` set non-zero exit
+codes without printing anything to stderr: pollution of stderr by a
 predicate's negative answer would break `2>/dev/null` log hygiene in
 caller scripts.
 
-New code should not reach for `ErrBare` unless the command is
-genuinely a predicate. Anything carrying recoverable error content
+A second class also uses `ErrBare`: a command that emits its own complete
+structured result envelope on **stdout** under `--json` (e.g. `update`, whose
+`{ok:false, error:{type, message}}` is its established output shape) and needs
+only the exit code conveyed, with no `stderr` envelope. Like a predicate, its
+answer is already on stdout; `ErrBare` carries the exit code alone.
+
+New code should not reach for `ErrBare` unless the command's full answer is
+already on stdout — a predicate's yes/no, or a self-contained result envelope
+as above. Anything whose error content must reach the caller on `stderr`
 belongs in a typed `*errs.XxxError` — or, for a batch result, in the
 partial-failure outcome below.
 
@@ -214,7 +214,7 @@ exitCode := output.ExitCodeOf(err) // ExitInternal for non-typed errors
 out=$(lark-cli ... 2>&1)
 code=$?
 
-# Untyped / Cobra errors print plain text — guard before jq.
+# Defensive guard: tolerate any non-JSON output before parsing with jq.
 if ! jq -e . >/dev/null 2>&1 <<<"$out"; then
     printf '%s\n' "$out" >&2
     exit "$code"
@@ -303,9 +303,10 @@ Do not pick exit codes by hand in new typed producers — `ExitCodeForCategory`
 maps `Category` to the shell code. A new exit-code requirement means a
 new `Category`, not a one-off override at the call site.
 
-(Legacy `*output.ExitError` retains hand-set codes until removal;
-`SecurityPolicyError` retains a hand-set code on main until the framework
-migration PR retires the carve-out — see **Migration**.)
+(The only exits not derived from `Category` are the
+`*output.BareError` and the `*output.PartialFailureError` signals, which
+carry their own code by design and sit outside the typed-envelope contract —
+see **Predicate commands**.)
 
 #### Split `Message`, `Hint`, and `Cause`
 
@@ -340,15 +341,54 @@ Message: fmt.Sprintf("request failed: %v — retry later", ioErr)
 // conflates what + what-to-do + cause into one string
 ```
 
-#### `ValidationError.Param` uses the `--flag` form
+#### Validation parameters: `Param` and `Params`
 
-When a `*ValidationError` originates from a flag value, `Param` holds the
-flag name with leading dashes (`"--priority"`, not `"priority"`). AI
-agents grep this field literally to surface "the bad flag was `--X`".
+`ValidationError` carries two additive parameter fields. Both are
+optional; a producer sets whichever fits the failure.
 
-For positional arguments, use the canonical name without dashes
+**`Param string` (wire `param`)** — the single offending parameter. When a
+`*ValidationError` originates from a flag value, `Param` holds the flag
+name with leading dashes (`"--priority"`, not `"priority"`). AI agents
+grep this field literally to surface "the bad flag was `--X`". For
+positional arguments, use the canonical name without dashes
 (`"target_user_id"`).
 
+**`Params []InvalidParam` (wire `params`)** — per-parameter validation
+detail, for failures that need to report *which* parameters failed and
+*why*, one entry each. Each `errs.InvalidParam` is
+`{Name, Reason string, Suggestions []string}`: `Name` identifies the
+parameter, `Reason` states why it failed, and the optional `Suggestions`
+(wire `suggestions`, omitted when empty) carries ranked candidate
+corrections an agent can retry with — the did-you-mean candidates for an
+unknown flag or subcommand — without parsing the human-facing `hint`. This
+is the CLI's rendering of the RFC 7807 `invalid-params` extension member
+(RFC 7807 §3.1). The wire key is `params`, not `invalid_params`: the
+enclosing envelope already carries `type:"validation"`, so the `invalid_`
+qualifier would be redundant on the wire.
+
+`Param` and `Params` are independent additive fields, not alternates of a
+single representation. Use `Param` for the common single-parameter error;
+use `Params` when one failure spans several parameters or needs a
+per-parameter reason. Set with `.WithParam("--flag")` / `.WithParams(...)`.
+
+A `params` wire example (multiple parameters each carrying a reason):
+
+```json
+{
+  "ok": false,
+  "identity": "user",
+  "error": {
+    "type": "validation",
+    "subtype": "invalid_argument",
+    "message": "2 parameters failed validation",
+    "params": [
+      { "name": "--start", "reason": "expected RFC3339, got \"yesterday\"" },
+      { "name": "--end", "reason": "must be after --start" }
+    ]
+  }
+}
+```
+
 ### Constructing typed errors
 
 Prefer the **builder API**. The constructor pins `Category` + `Subtype` +
@@ -378,44 +418,11 @@ them on the dynamic dispatch path where a `Problem` value is composed
 once and wrapped per Category branch. Outside that pattern, new code
 should reach for the builder.
 
-Legacy helpers (`output.ErrValidation`, `output.ErrAuth`, `output.ErrNetwork`)
-remain callable during migration but are `// Deprecated:` — new code goes
-through the builder.
-
-#### Shortcut `Execute` walkthrough
-
-Adapted from `shortcuts/calendar/calendar_suggestion.go:222`, whose legacy
-form is `output.ErrValidation("--duration-minutes must be between 1 and
-1440")`. The typed migration target (builder form):
-
-```go
-Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
-    duration := runtime.Int("duration-minutes")
-    if duration < 1 || duration > 1440 {
-        return errs.NewValidationError(errs.SubtypeInvalidArgument,
-            "--duration-minutes must be between 1 and 1440, got %d", duration).
-            WithHint("pass a value in [1, 1440]").
-            WithParam("--duration-minutes")
-    }
-
-    _, err := runtime.DoAPI(req, opts)
-    if err != nil {
-        return err // already typed by the framework boundary; propagate
-    }
-    return nil
-}
-```
-
-Two patterns visible: a producer site (the typed `*errs.ValidationError`
-above) and a propagation site (the `return err` after `runtime.DoAPI`,
-applying [Propagate typed errors unchanged](#propagate-typed-errors-unchanged)).
-
-When the validation logic outgrows a single range check — multiple
-flags, format parsing, conditional rules — extract it into a helper that
-also returns the typed `*errs.ValidationError`. The helper, not
-`Execute`, sets `Param` (a helper bound to one shortcut is normal in
-this codebase; see `parseTimeRange` in
-`shortcuts/calendar/calendar_agenda.go:144`).
+When the validation logic outgrows a single range check — multiple flags,
+format parsing, conditional rules — extract it into a helper that also returns
+the typed `*errs.ValidationError`; the helper, not `Execute`, sets `Param` (a
+helper bound to one shortcut is normal in this codebase; see `parseTimeRange`
+in `shortcuts/calendar/calendar_agenda.go`).
 
 ### Wrapping upstream errors
 
@@ -479,7 +486,7 @@ Rare; the existing structs cover the 9 Categories with room. If you must:
 
 1. In `errs/types.go`, add a new section with: the struct embedding `errs.Problem`, a nil-receiver-safe `Unwrap()` if it carries `Cause`, a `NewXxxError(subtype, format, args...)` constructor, and one chained `WithX` setter per extension field.
 2. Add an `IsXxx` predicate in `errs/predicates.go`.
-3. Add a wire-format pin in `errs/marshal_test.go` and a builder-chain pin in `errs/types_builder_test.go`.
+3. Add a wire-format pin in `errs/marshal_test.go` and a builder-chain pin in `errs/types_test.go`.
 
 `CheckProblemEmbed` enforces the `Problem` embed at lint time. New
 top-level wire fields are forbidden — per-Subtype data goes into the
@@ -488,19 +495,33 @@ top level.
 
 ## CI guards
 
-| Check | Enforces | Where |
-|-------|----------|-------|
-| forbidigo | business path (`shortcuts/**`, `cmd/service/**`) must not call legacy `output.*` error constructors — route through the typed classifier | `.golangci.yml` |
-| `CheckProblemEmbed` | every exported `*Error` embeds `errs.Problem` | `lint/errscontract/` AST |
-| `CheckNoRegistrar` | no `mergeCodeMeta` / `RegisterServiceMap` from service code | `lint/errscontract/` AST |
-| `CheckAdHocSubtype` | `ad_hoc_*` Subtypes labeled for promotion (warn) | `lint/errscontract/` AST |
-| `CheckDeclaredSubtype` | every `Subtype:` value is a declared constant or `ad_hoc_*` | `lint/errscontract/` AST |
-| `CheckTypedErrorCompleteness` | every `*errs.<X>Error{Problem: errs.Problem{...}}` literal must set `Category`, `Subtype`, and `Message` | `lint/errscontract/` AST |
+Two golangci-lint rules and the custom `errscontract` AST module enforce the
+contract; CI runs all three on every PR.
 
-CI runs `lint/` on every PR. Locally: `go run -C lint . ..`. The
-lintcheck CLI lives in its own Go module so its `golang.org/x/tools`
-dependency stays out of the shipped `lark-cli` binary's module graph;
-see `lint/README.md` for how to add a new lint domain.
+**golangci-lint** — scopes are defined in `.golangci.yml` (not duplicated here,
+so this spec cannot drift from the lint config):
+
+| Rule | Enforces |
+|------|----------|
+| forbidigo `errs-no-bare-wrap` | a command / wire-boundary final error must be typed (`errs.NewXxxError`), never a bare `fmt.Errorf` / `errors.New`; a genuine intermediate wrap opts out with `//nolint:forbidigo` + a reason |
+| errorlint | every error wrap uses `%w` and every comparison uses `errors.Is` / `errors.As` — interior wraps stay legal but cannot break the `errors.Unwrap` chain the typed boundary relies on |
+
+**errscontract** (`lint/errscontract/`, a separate Go module so its
+`golang.org/x/tools` dependency stays out of the shipped binary; run locally
+with `go run -C lint . ..`):
+
+| Check | Enforces |
+|-------|----------|
+| `CheckNoLegacyEnvelopeLiteral` / `CheckNoLegacyCommonHelperCall` / `CheckNoLegacyRuntimeAPICall` | the removed `output.*` legacy error surface cannot be reintroduced anywhere |
+| `CheckProblemEmbed` | every exported `*Error` embeds `errs.Problem` |
+| `CheckDeclaredSubtype` | every `Subtype:` value is a declared constant (or `ad_hoc_*`) |
+| `CheckTypedErrorCompleteness` | every typed-error struct literal sets `Category`, `Subtype`, and `Message` |
+| `CheckAdHocSubtype` | `ad_hoc_*` Subtypes flagged for promotion (warning) |
+| `CheckNoRegistrar` | no `mergeCodeMeta` / `RegisterServiceMap` from service code |
+
+`errscontract` also carries framework-internal invariants (nil-safe `Unwrap`,
+builder immutability, unwrap symmetry); see `lint/errscontract/` for the full
+set and `lint/README.md` for adding a new lint domain.
 
 ## Stability
 
@@ -510,67 +531,13 @@ see `lint/README.md` for how to add a new lint domain.
 | Additive | new Category, new declared Subtype, new extension field on an existing struct | minor release; consumers ignore unknown fields by contract |
 | Experimental | `ad_hoc_*` Subtypes; fields documented as such in `errs/types.go` | may change or be promoted/removed within one release |
 
-The deprecated `*output.ExitError` surface is outside these tiers — it
-will be removed once business migration completes.
-
-## Migration
-
-**Strategy shift (2026-05-26).** The original plan (`docs/design/errors-refactor/spec.md` v2.12 §9) was a centrally-driven 4-PR rollout — framework → auth domain → multi-pilot → full-repo + legacy removal. That plan is **superseded** by a hybrid model: framework owner ships framework-level hardening (including a typed `*errs.*Error` migration of `internal/**`) as one focused PR; business-domain typed migration is **self-service** via [`docs/errors-guide.md`](../docs/errors-guide.md) and the builder API, with no central sweep timeline.
-
-Why the shift: 800+ legacy call sites split across 8+ business domains do not all share a single reviewer's bandwidth, and the contract is now expressive enough that each domain owner can migrate their own code from the guide without coordinating with framework owner.
-
-### Current state
-
-1. **Framework slice — ✅ shipped (PR #984).** The `errs/` typed taxonomy, classifier (`internal/errclass`), promotion stub (`internal/errcompat`, passthrough), dispatcher hook (`WriteTypedErrorEnvelope`), and the `lint/errscontract` AST guards. Wire shapes preserved byte-for-byte versus pre-PR, with **one intentional semantic fix**: config-class errors (`*core.ConfigError`) now exit `3` instead of `2`, aligning with `ExitCodeForCategory` (config errors share the auth exit slot per the taxonomy). The classifier and promote helpers are *shipped but unused* in production paths — they exist so framework migration can plug in without re-architecting.
-
-2. **Builder API — ✅ shipped (this branch).** `errs/types.go` adds the canonical producer surface (`errs.NewXxxError(subtype, format, args...).WithX(...)`) for all 10 typed types, alongside each struct declaration. Constructor signature pins `Category` (via function name) and `Subtype` + `Message` (positional), so the producer cannot mis-specify any of the three identity fields. Optional fields chain through `.WithX(...)` setters that preserve the concrete pointer type.
-
-### Next: framework migration PR (planned)
-
-A single PR consolidates the work the original §9 spec split across PRs 2–4 — restricted to framework code, no business sweep:
-
-- **Migrate `internal/**` typed construction to the builder API.** ~16 call sites in `internal/errclass/classify.go` (BuildAPIError fanout), `internal/auth/transport.go` (SecurityPolicy), `internal/auth/uat_client.go`, `internal/errcompat/promote*.go`, `internal/client/client.go`, `internal/client/api_errors.go`.
-- **Land the framework-side semantic changes** previously scoped to spec §9 PR 2: `SecurityPolicyError` exit `1→6`, `WrapDoAPIError` typed (`*NetworkError` with subtype timeout/tls/dns/server_error/transport, `*InternalError` for JSON-decode), `WrapJSONResponseParseError` typed, `errcompat.PromoteConfigError` real Type routing, `PromoteAuthError` helper + dispatcher wiring, 10 credential Lark codes registered in codeMeta, 99991543 config classification, `resolveAccessToken` typed `*AuthenticationError`, `BuildAPIError` filling `*PermissionError.MissingScopes` / `Identity` / `ConsoleURL`, deletion of `scopeAwareChecker`.
-- **Add `forbidigo` rule** banning `output.Err*` constructors in `shortcuts/**` and `cmd/**` (mirrors the contract that new business code must use the builder).
-- **CHANGELOG** lists the resulting ~10 shell-exit-code shifts in one release entry (vs the spec §1 spread of 11 — the remaining one site lives in `task` business code).
-
-### Business-domain migration (self-service, no central timeline)
-
-Each business package migrates its own `output.Err*` call sites to the builder when convenient — typically batched within one domain. The guide at [`docs/errors-guide.md`](../docs/errors-guide.md) walks owners through the 8 typical error modes (validation / authorization / authentication / config / network / api / internal / policy) with real `file:line` examples from main. The three-layer extension model (add Subtype / add field / add Category) handles cases the existing taxonomy does not cover.
-
-Helper assertions accept both shapes during migration (see `shortcuts/mail/mail_shortcut_validation_test.go` `assertValidationError`) so domain migrations stay green incrementally.
-
-### Legacy removal
-
-Deferred until business migration completion approaches the asymptote. `Errorf`, `ErrAPI`, `ErrAuth`, `ErrWithHint`, `ErrBare`, `ClassifyLarkError`, `ErrDetail`, `ExitError`, and `ErrorEnvelope` are `// Deprecated:` today and stay callable. No fixed removal date.
-
-### Before / after at a call site
-
-```go
-// before (legacy)
-return output.ErrAPI(larkCode, "create event failed", resp.RawBody())
-
-// after (typed) — cc carries Brand / AppID / Identity from the caller's context
-return errclass.BuildAPIError(parsedResp, cc)
-```
-
-```go
-// before (legacy validation)
-return output.ErrValidation("--duration-minutes must be between 1 and 1440")
-
-// after (builder)
-return errs.NewValidationError(errs.SubtypeInvalidArgument,
-    "--duration-minutes must be between 1 and 1440, got %d", duration).
-    WithParam("--duration-minutes")
-```
-
 ## Troubleshooting
 
 **Envelope shows `type=api subtype=unknown` for what should be a more
 specific category.** The Lark code is unknown to `LookupCodeMeta` and fell
 through to the generic bucket (`internal/errclass/classify.go`). Add the
 code to `internal/errclass/codemeta_<service>.go` with the right Category
-and Subtype, plus a dispatch test in `classify_test.go`.
+and Subtype, plus a dispatch test in `internal/errclass/classify_test.go`.
 
 **Envelope shows `type=internal subtype=sdk_error`.** Origin is
 `client.WrapDoAPIError` taking the non-transport branch
@@ -613,8 +580,6 @@ string cannot be classified retroactively.
 - *Add a new condition?* → **Add a Subtype**
 - *Consume from a shell script?* → **Consumers / Shell / AI**
 - *Understand or fix a CI failure?* → **CI guards**
-- *Migrate a legacy `ExitError` call site?* → **Migration** + the
-  Deprecated note on the symbol being replaced.
 - *Read source.* → `errs/doc.go` → `errs/category.go` → `errs/types.go`
   → `errs/predicates.go` → `internal/errclass/` →
   `cmd/root.go` `handleRootError`.

errs/raw.go

@@ -0,0 +1,29 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errs
+
+import "errors"
+
+// rawPassthrough marks an error as raw passthrough: the dispatcher must not
+// rewrite its message or hint with local enrichment. Raw is
+// dispatcher-internal routing state, not a wire field. It is deliberately not
+// a typed taxonomy error (no embedded Problem) — it only wraps one.
+type rawPassthrough struct{ err error }
+
+func (e *rawPassthrough) Error() string { return e.err.Error() }
+func (e *rawPassthrough) Unwrap() error { return e.err }
+
+// MarkRaw wraps err as raw passthrough. MarkRaw(nil) returns nil.
+func MarkRaw(err error) error {
+	if err == nil {
+		return nil
+	}
+	return &rawPassthrough{err: err}
+}
+
+// IsRaw reports whether err or any error in its chain is marked raw.
+func IsRaw(err error) bool {
+	var raw *rawPassthrough
+	return errors.As(err, &raw)
+}

errs/raw_test.go

@@ -0,0 +1,96 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errs_test
+
+import (
+	"encoding/json"
+	"errors"
+	"fmt"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+)
+
+func TestMarkRawNilReturnsNil(t *testing.T) {
+	if got := errs.MarkRaw(nil); got != nil {
+		t.Fatalf("MarkRaw(nil) = %v, want nil", got)
+	}
+}
+
+func TestIsRaw(t *testing.T) {
+	base := fmt.Errorf("boom")
+
+	if !errs.IsRaw(errs.MarkRaw(base)) {
+		t.Errorf("IsRaw(MarkRaw(err)) = false, want true")
+	}
+	if errs.IsRaw(base) {
+		t.Errorf("IsRaw(bare err) = true, want false")
+	}
+	if errs.IsRaw(nil) {
+		t.Errorf("IsRaw(nil) = true, want false")
+	}
+
+	// Raw marking survives further wrapping above it in the chain.
+	wrapped := fmt.Errorf("outer: %w", errs.MarkRaw(base))
+	if !errs.IsRaw(wrapped) {
+		t.Errorf("IsRaw(wrap(MarkRaw(err))) = false, want true")
+	}
+}
+
+func TestMarkRawPreservesErrorMessage(t *testing.T) {
+	base := fmt.Errorf("boom")
+	if got := errs.MarkRaw(base).Error(); got != "boom" {
+		t.Fatalf("MarkRaw(err).Error() = %q, want %q", got, "boom")
+	}
+}
+
+func TestMarkRawPreservesErrorsIsChain(t *testing.T) {
+	sentinel := errors.New("sentinel")
+	wrapped := fmt.Errorf("ctx: %w", sentinel)
+
+	if !errors.Is(errs.MarkRaw(wrapped), sentinel) {
+		t.Fatalf("errors.Is(MarkRaw(err), sentinel) = false, want true")
+	}
+}
+
+func TestProblemOfPunchesThroughMarkRaw(t *testing.T) {
+	typed := errs.NewValidationError(errs.SubtypeInvalidArgument, "bad flag")
+	raw := errs.MarkRaw(typed)
+
+	p, ok := errs.ProblemOf(raw)
+	if !ok {
+		t.Fatalf("ProblemOf(MarkRaw(typed)) ok = false, want true")
+	}
+	if p.Category != errs.CategoryValidation {
+		t.Errorf("ProblemOf(MarkRaw(typed)).Category = %v, want %v", p.Category, errs.CategoryValidation)
+	}
+
+	// errors.As still finds the concrete typed error through the raw wrapper.
+	var ve *errs.ValidationError
+	if !errors.As(raw, &ve) {
+		t.Errorf("errors.As(MarkRaw(typed), *ValidationError) = false, want true")
+	}
+}
+
+// TestMarkRawUnwrapsToInnerTypedError pins the envelope-serialization
+// contract: UnwrapTypedError must return the inner concrete typed error,
+// not the rawPassthrough wrapper. The wrapper has no exported fields, so if it
+// were returned the JSON envelope would marshal to an empty "{}" error.
+func TestMarkRawUnwrapsToInnerTypedError(t *testing.T) {
+	base := errs.NewValidationError(errs.SubtypeInvalidArgument, "bad flag")
+	typed, ok := errs.UnwrapTypedError(errs.MarkRaw(base))
+	if !ok {
+		t.Fatal("UnwrapTypedError(MarkRaw(typed)) must find a typed error")
+	}
+	out, err := json.Marshal(typed)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if string(out) == "{}" {
+		t.Fatalf("UnwrapTypedError returned the opaque rawPassthrough wrapper; envelope would be empty: %s", out)
+	}
+	if got := errs.CategoryOf(typed); got != errs.CategoryValidation {
+		t.Fatalf("unwrapped category = %q, want validation", got)
+	}
+}

errs/subtypes.go

@@ -73,6 +73,7 @@ const (
 const (
 	SubtypeChallengeRequired Subtype = "challenge_required" // user must complete browser challenge / MFA
 	SubtypeAccessDenied      Subtype = "access_denied"      // policy denies access outright
+	SubtypeContentSafety     Subtype = "content_safety"     // content-safety scanner blocked output in block mode
 )
 
 // CategoryInternal subtypes

errs/types.go

@@ -77,6 +77,10 @@ type ValidationError struct {
 type InvalidParam struct {
 	Name   string `json:"name"`
 	Reason string `json:"reason"`
+	// Suggestions holds machine-readable, ranked candidate corrections for this
+	// parameter (e.g. did-you-mean flags or subcommands), so an agent can retry
+	// without parsing the human-facing hint. Omitted when there are none.
+	Suggestions []string `json:"suggestions,omitempty"`
 }
 
 // Unwrap exposes the wrapped cause so errors.Unwrap / errors.Is can traverse

errs/types_test.go

@@ -101,9 +101,9 @@ func TestSecurityPolicyErrorUnwrap(t *testing.T) {
 // interface would panic when the root dispatcher or any caller walks the
 // errors.Is / errors.Unwrap chain.
 //
-// The doc comments on these types claim "nil-receiver safe" but until this
-// test landed nothing actually pinned that claim — exactly the
-// behavioral-comment-without-test footgun caught in PR #984 review.
+// The doc comments on these types claim "nil-receiver safe"; this test
+// pins that claim so the behavioral comment cannot silently drift from the
+// implementation.
 func TestTypedErrors_UnwrapNilReceiver(t *testing.T) {
 	t.Helper()
 	checks := []struct {

events/im/message_receive.go

@@ -23,7 +23,7 @@ type ImMessageReceiveOutput struct {
 	ChatType    string `json:"chat_type,omitempty"    desc:"Conversation type"                                                                                                                                                                   enum:"p2p,group"`
 	MessageType string `json:"message_type,omitempty" desc:"Message type"`
 	SenderID    string `json:"sender_id,omitempty"    desc:"Sender open_id; prefixed with ou_"                                                                                                                                                   kind:"open_id"`
-	Content     string `json:"content,omitempty"      desc:"Message content. For most types (text/post/image/file/audio, etc.) this is pre-rendered human-readable text. For interactive (cards) it stays as the raw JSON string and callers must fromjson to parse it."`
+	Content     string `json:"content,omitempty"      desc:"Message content. For most types (text/post/image/file/audio, etc.) this is pre-rendered human-readable text."`
 }
 
 func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
@@ -55,8 +55,10 @@ func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.Ra
 	}
 
 	msg := envelope.Event.Message
-	content := msg.Content
-	if msg.MessageType != "interactive" {
+	var content string
+	if msg.MessageType == "interactive" {
+		content = convertlib.ConvertInteractiveEventContent(msg.Content, msg.Mentions)
+	} else {
 		content = convertlib.ConvertBodyContent(msg.MessageType, &convertlib.ConvertContext{
 			RawContent: msg.Content,
 			MentionMap: convertlib.BuildMentionKeyMap(msg.Mentions),

extension/platform/abort.go

@@ -7,8 +7,8 @@ import "fmt"
 
 // AbortError is returned by a Wrapper that wants to short-circuit the
 // command chain (instead of calling next). The framework converts it
-// to an *output.ExitError with type "hook" so the JSON envelope carries
-// the structured fields agents expect.
+// to a typed errs.* error so the JSON envelope carries the structured
+// fields agents expect.
 //
 // HookName is the framework-namespaced name ("secaudit.approval"); the
 // Registrar adds the plugin-name prefix automatically.

extension/platform/errors.go

@@ -7,9 +7,9 @@ import "fmt"
 
 // CommandDeniedError is the structured error returned by a denyStub. Every
 // pruned-command execution path -- direct invocation, alias expansion,
-// internal call -- returns this exact type. It is wire-compatible with the
-// output.ExitError envelope via the Layer (== error.type) field and the
-// detail map produced by ExitError().
+// internal call -- returns this exact type. The dispatcher converts it to a
+// typed errs.* error; the Layer field carries the denial layer for the
+// envelope.
 //
 // Layer values:
 //

go.mod

@@ -27,6 +27,8 @@ require (
 	gopkg.in/yaml.v3 v3.0.1
 )
 
+require github.com/apache/arrow/go/v17 v17.0.0
+
 require (
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
@@ -42,13 +44,17 @@ require (
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/dustin/go-humanize v1.0.1 // indirect
 	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
+	github.com/goccy/go-json v0.10.3 // indirect
 	github.com/godbus/dbus/v5 v5.2.2 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/flatbuffers v24.3.25+incompatible // indirect
 	github.com/gopherjs/gopherjs v1.17.2 // indirect
 	github.com/gorilla/websocket v1.5.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/itchyny/timefmt-go v0.1.6 // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
+	github.com/klauspost/compress v1.17.9 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.8 // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
 	github.com/mattn/go-localereader v0.0.1 // indirect
@@ -57,10 +63,16 @@ require (
 	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
 	github.com/muesli/cancelreader v0.2.2 // indirect
 	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/pierrec/lz4/v4 v4.1.21 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
 	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/smarty/assertions v1.15.0 // indirect
 	github.com/tidwall/match v1.1.1 // indirect
 	github.com/tidwall/pretty v1.2.0 // indirect
 	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
+	github.com/zeebo/xxh3 v1.0.2 // indirect
+	golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 // indirect
+	golang.org/x/mod v0.18.0 // indirect
+	golang.org/x/tools v0.22.0 // indirect
+	golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 // indirect
 )

go.sum

@@ -2,6 +2,8 @@ github.com/MakeNowJust/heredoc v1.0.0 h1:cXCdzVdstXyiTqTvfqk9SDHpKNjxuom+DOlyEeQ
 github.com/MakeNowJust/heredoc v1.0.0/go.mod h1:mG5amYoWBHf8vpLOuehzbGGw0EHxpZZ6lCpQ4fNJ8LE=
 github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
 github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/apache/arrow/go/v17 v17.0.0 h1:RRR2bdqKcdbss9Gxy2NS/hK8i4LDMh23L6BbkN5+F54=
+github.com/apache/arrow/go/v17 v17.0.0/go.mod h1:jR7QHkODl15PfYyjM2nU+yTLScZ/qfj7OSUZmJ8putc=
 github.com/atotto/clipboard v0.1.4 h1:EH0zSVneZPSuFR11BlR9YppQTVDbh5+16AmcJi4g1z4=
 github.com/atotto/clipboard v0.1.4/go.mod h1:ZY9tmq7sm5xIbd9bOK4onWV4S6X0u6GY7Vn0Yu86PYI=
 github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
@@ -52,12 +54,16 @@ github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkp
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
 github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
 github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
+github.com/goccy/go-json v0.10.3 h1:KZ5WoDbxAIgm2HNbYckL0se1fHD6rz5j4ywS6ebzDqA=
+github.com/goccy/go-json v0.10.3/go.mod h1:oq7eo15ShAhp70Anwd5lgX2pLfOS3QCiwU/PULtXL6M=
 github.com/godbus/dbus/v5 v5.2.2 h1:TUR3TgtSVDmjiXOgAAyaZbYmIeP3DPkld3jgKGV8mXQ=
 github.com/godbus/dbus/v5 v5.2.2/go.mod h1:3AAv2+hPq5rdnr5txxxRwiGjPXamgoIHgz9FPBfOp3c=
 github.com/gofrs/flock v0.8.1 h1:+gYjHKf32LDeiEEFhQaotPbLuUXjY5ZqxKgXy7n59aw=
 github.com/gofrs/flock v0.8.1/go.mod h1:F1TvTiK9OcQqauNUHlbJvyl9Qa1QvF/gOUDKA14jxHU=
 github.com/gogo/protobuf v1.3.2 h1:Ov1cvc58UF3b5XjBnZv7+opcTcQFZebYjWzi34vdm4Q=
 github.com/gogo/protobuf v1.3.2/go.mod h1:P1XiOD3dCwIKUDQYPy72D8LYyHL2YPYrpS2s69NZV8Q=
+github.com/google/flatbuffers v24.3.25+incompatible h1:CX395cjN9Kke9mmalRoL3d81AtFUxJM+yDthflgJGkI=
+github.com/google/flatbuffers v24.3.25+incompatible/go.mod h1:1AeVuKshWv4vARoZatz6mlQ0JxURH0Kv5+zNeJKJCa8=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gopherjs/gopherjs v1.17.2 h1:fQnZVsXk8uxXIStYb0N4bGk7jeyTalG/wsZjQ25dO0g=
@@ -74,11 +80,16 @@ github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7
 github.com/jtolds/gls v4.20.0+incompatible/go.mod h1:QJZ7F/aHp+rZTRtaJ1ow/lLfFfVYBRgL+9YlvaHOwJU=
 github.com/kisielk/errcheck v1.5.0/go.mod h1:pFxgyoBC7bSaBwPgfKdkLd5X25qrDl4LWUI2bnpBCr8=
 github.com/kisielk/gotool v1.0.0/go.mod h1:XhKaO+MFFWcvkIS/tQcRk01m1F5IRFswLeQ+oQHNcck=
+github.com/klauspost/compress v1.17.9 h1:6KIumPrER1LHsvBVuDa0r5xaG0Es51mhhB9BQB2qeMA=
+github.com/klauspost/compress v1.17.9/go.mod h1:Di0epgTjJY877eYKx5yC51cX2A2Vl2ibi7bDH9ttBbw=
+github.com/klauspost/cpuid/v2 v2.2.8 h1:+StwCXwm9PdpiEkPyzBXIy+M9KUb4ODm0Zarf1kS5BM=
+github.com/klauspost/cpuid/v2 v2.2.8/go.mod h1:Lcz8mBdAVJIBVzewtcLocK12l3Y+JytZYpaMropDUws=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
 github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
-github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
 github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/kr/text v0.2.0 h1:5Nx0Ya0ZqY2ygV366QzturHI13Jq95ApcVaJBhpS+AY=
+github.com/kr/text v0.2.0/go.mod h1:eLer722TekiGuMkidMxC/pM04lWEeraHUUmBw8l2grE=
 github.com/larksuite/oapi-sdk-go/v3 v3.5.4 h1:U2S9x9LrfH++ZqJ+YAiUlqzCWJmVXhFdS8Z7rIBH8H0=
 github.com/larksuite/oapi-sdk-go/v3 v3.5.4/go.mod h1:ZEplY+kwuIrj/nqw5uSCINNATcH3KdxSN7y+UxYY5fI=
 github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
@@ -97,6 +108,8 @@ github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELU
 github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
 github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
 github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
+github.com/pierrec/lz4/v4 v4.1.21 h1:yOVMLb6qSIDP67pl/5F7RepeKYu/VmTyEXvuMI5d9mQ=
+github.com/pierrec/lz4/v4 v4.1.21/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
@@ -133,14 +146,20 @@ github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/zalando/go-keyring v0.2.8 h1:6sD/Ucpl7jNq10rM2pgqTs0sZ9V3qMrqfIIy5YPccHs=
 github.com/zalando/go-keyring v0.2.8/go.mod h1:tsMo+VpRq5NGyKfxoBVjCuMrG47yj8cmakZDO5QGii0=
+github.com/zeebo/assert v1.3.0 h1:g7C04CbJuIDKNPFHmsk4hwZDO5O+kntRxzaUoNXj+IQ=
+github.com/zeebo/assert v1.3.0/go.mod h1:Pq9JiuJQpG8JLJdtkwrJESF0Foym2/D9XMU5ciN/wJ0=
+github.com/zeebo/xxh3 v1.0.2 h1:xZmwmqxHZA8AI603jOQ0tMqmBr9lPeFwGg6d+xy9DC0=
+github.com/zeebo/xxh3 v1.0.2/go.mod h1:5NWz9Sef7zIDm2JHfFlcQvNekmcEl9ekUZQQKCYaDcA=
 go.yaml.in/yaml/v3 v3.0.4/go.mod h1:DhzuOOF2ATzADvBadXxruRBLzYTpT36CKvDb3+aBEFg=
 golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
-golang.org/x/exp v0.0.0-20231006140011-7918f672742d h1:jtJma62tbqLibJ5sFQz8bKtEM8rJBtfilJ2qTU199MI=
-golang.org/x/exp v0.0.0-20231006140011-7918f672742d/go.mod h1:ldy0pHrwJyGW56pPQzzkH36rKxoZW1tw7ZJpeKx+hdo=
+golang.org/x/exp v0.0.0-20240222234643-814bf88cf225 h1:LfspQV/FYTatPTr/3HzIcmiUFH7PGP+OQ6mgDYo3yuQ=
+golang.org/x/exp v0.0.0-20240222234643-814bf88cf225/go.mod h1:CxmFvTBINI24O/j8iY7H1xHzx2i4OsyguNBmN/uPtqc=
 golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
+golang.org/x/mod v0.18.0 h1:5+9lSbEzPSdWkH32vYPBwEpX8KwDbM52Ud9xBUvNlb0=
+golang.org/x/mod v0.18.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200226121028-0de0cce0169b/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
@@ -156,6 +175,7 @@ golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.5.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.33.0 h1:q3i8TbbEz+JRD9ywIRlyRAQbM0qF7hu24q3teo2hbuw=
 golang.org/x/sys v0.33.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
@@ -169,10 +189,16 @@ golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGm
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
 golang.org/x/tools v0.0.0-20200619180055-7c47624df98f/go.mod h1:EkVYQZoAsY45+roYkvgYkIh4xh/qjgUK9TdY2XT94GE=
 golang.org/x/tools v0.0.0-20210106214847-113979e3529a/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
+golang.org/x/tools v0.22.0 h1:gqSGLZqv+AI9lIQzniJ0nZDRG5GBPsSi+DRNHWNz6yA=
+golang.org/x/tools v0.22.0/go.mod h1:aCwcsjqvq7Yqt6TNyX7QMU2enbQ/Gt0bo6krSeEri+c=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028 h1:+cNy6SZtPcJQH3LJVLOSmiC7MMxXNOb3PU/VUEz+EhU=
+golang.org/x/xerrors v0.0.0-20231012003039-104605ab7028/go.mod h1:NDW/Ps6MPRej6fsCIbMTohpP40sJ/P/vI1MoTEGwX90=
+gonum.org/v1/gonum v0.15.0 h1:2lYxjRbTYyxkJxlhC+LvJIx3SsANPdRybu1tGj9/OrQ=
+gonum.org/v1/gonum v0.15.0/go.mod h1:xzZVBJBtS+Mz4q0Yl2LJTk+OxOg4jiXZ7qBoM0uISGo=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo=
 gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

internal/apicatalog/catalog.go

@@ -0,0 +1,396 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package apicatalog is the single navigation Module over the API metadata. It
+// owns every "which services/resources/methods exist and how does a path
+// resolve" question that was previously duplicated across cmd/schema,
+// cmd/service, internal/schema and internal/registry. It depends only on
+// internal/meta; registry is the source Adapter (EmbeddedCatalog/RuntimeCatalog),
+// so apicatalog never imports registry.
+package apicatalog
+
+import (
+	"sort"
+	"strings"
+
+	"github.com/larksuite/cli/internal/meta"
+)
+
+// Source records whether a catalog includes the remote overlay. It is carried
+// so callers (and tests) can assert determinism instead of guessing.
+type Source string
+
+const (
+	SourceEmbedded Source = "embedded" // compiled-in metadata only; deterministic
+	SourceRuntime  Source = "runtime"  // embedded + remote overlay
+)
+
+// MethodFilter optionally drops methods (e.g. by identity in strict mode).
+// A nil filter includes everything.
+type MethodFilter func(meta.Method) bool
+
+// Catalog is a navigation view over services with a name index. It owns its
+// ordering — New sorts by name — so WalkMethods/Resolve/Complete are
+// deterministic regardless of how the source adapter ordered its input.
+type Catalog struct {
+	source   Source
+	services []meta.Service
+	byName   map[string]meta.Service
+}
+
+// New builds a Catalog over the given services, owning its navigation order:
+// the slice is copied and sorted by name so callers may pass any order and the
+// ordering contract is not delegated to the adapter. The copy is shallow —
+// meta.Service values share their Resources maps, which are treated as
+// read-only.
+func New(source Source, services []meta.Service) Catalog {
+	sorted := append([]meta.Service(nil), services...)
+	sort.Slice(sorted, func(i, j int) bool { return sorted[i].Name < sorted[j].Name })
+	byName := make(map[string]meta.Service, len(sorted))
+	for _, s := range sorted {
+		byName[s.Name] = s
+	}
+	return Catalog{source: source, services: sorted, byName: byName}
+}
+
+// Source reports embedded vs runtime.
+func (c Catalog) Source() Source { return c.source }
+
+// Services returns the services in name order. Treat the result as read-only:
+// it is the Catalog's own ordered slice and its element Resources maps are
+// shared.
+func (c Catalog) Services() []meta.Service { return c.services }
+
+// Service looks up one service by name.
+func (c Catalog) Service(name string) (meta.Service, bool) {
+	s, ok := c.byName[name]
+	return s, ok
+}
+
+// Resolve maps a path (already split into segments) to a Target. An empty path
+// is TargetAll. Failures return a *ResolveError carrying the available
+// candidates so the command layer can render a hint.
+func (c Catalog) Resolve(parts []string) (Target, error) {
+	if len(parts) == 0 {
+		return Target{Kind: TargetAll}, nil
+	}
+	svc, ok := c.byName[parts[0]]
+	if !ok {
+		return Target{}, &ResolveError{Kind: ErrService, Subject: parts[0], Candidates: c.serviceNames()}
+	}
+	if len(parts) == 1 {
+		return Target{Kind: TargetService, Service: svc}, nil
+	}
+	res, path, remaining, ok := findResource(svc, parts[1:])
+	if !ok {
+		return Target{}, &ResolveError{
+			Kind:       ErrResource,
+			Subject:    svc.Name + "." + strings.Join(parts[1:], "."),
+			Candidates: resourceNames(svc),
+		}
+	}
+	resPath := strings.Join(path, ".")
+	if len(remaining) == 0 {
+		return Target{Kind: TargetResource, Service: svc, Resource: &ResourceRef{Service: svc, Resource: res, Path: path}}, nil
+	}
+	methodName := remaining[0]
+	m, ok := res.Method(methodName)
+	if !ok {
+		return Target{}, &ResolveError{
+			Kind:       ErrMethod,
+			Subject:    svc.Name + "." + resPath + "." + methodName,
+			Candidates: methodNames(res),
+		}
+	}
+	if len(remaining) > 1 {
+		// Method exists but trailing segments don't resolve — reject so a typo
+		// doesn't silently return this method's schema.
+		return Target{}, &ResolveError{
+			Kind:     ErrPath,
+			Subject:  svc.Name + "." + resPath + "." + strings.Join(remaining, "."),
+			Method:   methodName,
+			Trailing: strings.Join(remaining[1:], "."),
+		}
+	}
+	return Target{Kind: TargetMethod, Service: svc, Method: &MethodRef{Service: svc, Resource: res, ResourcePath: path, Method: m}}, nil
+}
+
+// MethodRefs returns the method refs selected by a resolved Target, filtered:
+// TargetAll -> every method, TargetService / TargetResource -> that subtree,
+// TargetMethod -> the single method if it passes the filter (else empty). It
+// unifies WalkMethods/ServiceMethods/ResourceMethods so the command layer maps a
+// Target to refs in one call instead of re-deciding the walker per Kind.
+func (c Catalog) MethodRefs(target Target, filter MethodFilter) []MethodRef {
+	switch target.Kind {
+	case TargetService:
+		return ServiceMethods(target.Service, filter)
+	case TargetResource:
+		return ResourceMethods(*target.Resource, filter)
+	case TargetMethod:
+		if filter != nil && !filter(target.Method.Method) {
+			return nil
+		}
+		return []MethodRef{*target.Method}
+	case TargetAll:
+		return c.WalkMethods(filter)
+	default:
+		// Unknown / zero-value Kind: return nothing rather than silently
+		// dumping every method (the safe direction for an invalid Target).
+		return nil
+	}
+}
+
+// WalkMethods returns one MethodRef per method across all services (optionally
+// filtered), recursing nested resources, in a deterministic order: services by
+// name, resources by name, methods by name.
+func (c Catalog) WalkMethods(filter MethodFilter) []MethodRef {
+	var out []MethodRef
+	for _, svc := range c.services {
+		out = append(out, ServiceMethods(svc, filter)...)
+	}
+	return out
+}
+
+// ServiceMethods returns the method refs of one service (filtered), recursing
+// nested resources, in deterministic resource/method name order.
+func ServiceMethods(svc meta.Service, filter MethodFilter) []MethodRef {
+	var out []MethodRef
+	walkResources(svc, svc.ResourceList(), nil, filter, &out)
+	return out
+}
+
+// ResourceMethods returns the method refs under one resource (filtered), using
+// the resource's resolved path as the base and recursing nested resources.
+func ResourceMethods(r ResourceRef, filter MethodFilter) []MethodRef {
+	var out []MethodRef
+	for _, m := range r.Resource.MethodList() {
+		if filter == nil || filter(m) {
+			out = append(out, MethodRef{Service: r.Service, Resource: r.Resource, ResourcePath: r.Path, Method: m})
+		}
+	}
+	walkResources(r.Service, r.Resource.SubResources(), r.Path, filter, &out)
+	return out
+}
+
+func walkResources(svc meta.Service, resources []meta.Resource, parentPath []string, filter MethodFilter, out *[]MethodRef) {
+	for _, res := range resources {
+		path := append(append([]string(nil), parentPath...), res.Name)
+		for _, m := range res.MethodList() {
+			if filter == nil || filter(m) {
+				*out = append(*out, MethodRef{Service: svc, Resource: res, ResourcePath: path, Method: m})
+			}
+		}
+		walkResources(svc, res.SubResources(), path, filter, out)
+	}
+}
+
+// Complete returns shell-completion candidates for the schema path argument,
+// supporting both the legacy single dotted arg ("im.reac") and the
+// space-separated form ("im reactions"). noSpace mirrors cobra's
+// ShellCompDirectiveNoSpace (so "service." / "service.resource." stay open for
+// the next segment). Filtering uses the caller's MethodFilter so strict-mode
+// unavailable methods are hidden.
+func (c Catalog) Complete(args []string, toComplete string, filter MethodFilter) (completions []string, noSpace bool) {
+	// Case 1: legacy single dotted arg — no resolved args yet.
+	if len(args) == 0 {
+		parts := strings.Split(toComplete, ".")
+		if len(parts) <= 1 {
+			for _, name := range c.serviceNames() {
+				if strings.HasPrefix(name, toComplete) {
+					completions = append(completions, name+".")
+				}
+			}
+			return completions, true
+		}
+		svc, ok := c.byName[parts[0]]
+		if !ok {
+			return nil, false
+		}
+		completions = c.completeDotted(svc, strings.Join(parts[1:], "."), filter)
+		allTrailingDot := len(completions) > 0
+		for _, comp := range completions {
+			if !strings.HasSuffix(comp, ".") {
+				allTrailingDot = false
+				break
+			}
+		}
+		return completions, allTrailingDot
+	}
+
+	// Case 2: space-separated form — args holds resolved segments.
+	svc, ok := c.byName[args[0]]
+	if !ok {
+		return nil, false
+	}
+	resource, _, _, ok := findResource(svc, args[1:])
+	if !ok {
+		// No resource matched yet — suggest top-level resources reachable in the
+		// current identity mode.
+		return completeChildren(svc.ResourceList(), nil, toComplete, filter), false
+	}
+	// Positioned in a resource — offer its methods and its sub-resources, so the
+	// next segment can drill deeper, symmetric to findResource's descent.
+	return completeChildren(resource.SubResources(), resource.MethodList(), toComplete, filter), false
+}
+
+// completeDotted suggests dotted completions for the text after the service
+// segment. It descends fully-typed "resource." segments (longest match per
+// level, so flat dotted keys like "chat.members" and genuinely nested resources
+// both resolve), then offers the reachable sub-resources (as "…name.") and the
+// methods (as "…name") of the level it lands in whose names extend the trailing
+// partial token. This descent is symmetric to findResource, so completion can
+// reach every method Resolve can.
+func (c Catalog) completeDotted(svc meta.Service, afterService string, filter MethodFilter) []string {
+	subs := svc.ResourceList()
+	base := svc.Name
+	rest := afterService
+	var here *meta.Resource // resource we're positioned in; nil at the service root
+	for {
+		matched, n, ok := longestResourceFollowedByDot(subs, rest)
+		if !ok {
+			break
+		}
+		base += "." + matched.Name
+		rest = rest[n:]
+		r := matched
+		here = &r
+		subs = matched.SubResources()
+	}
+
+	var out []string
+	for _, sub := range subs {
+		if strings.HasPrefix(sub.Name, rest) && resourceReachable(sub, filter) {
+			out = append(out, base+"."+sub.Name+".")
+		}
+	}
+	if here != nil {
+		for _, m := range here.MethodList() {
+			if (filter == nil || filter(m)) && strings.HasPrefix(m.Name, rest) {
+				out = append(out, base+"."+m.Name)
+			}
+		}
+	}
+	sort.Strings(out)
+	return out
+}
+
+// completeChildren returns the sorted next-segment candidates at one level: the
+// (filtered) methods and the reachable sub-resources whose names extend prefix.
+// Methods are terminal; sub-resources are bare names the caller drills into on
+// the next segment.
+func completeChildren(subResources []meta.Resource, methods []meta.Method, prefix string, filter MethodFilter) []string {
+	var out []string
+	for _, m := range methods {
+		if (filter == nil || filter(m)) && strings.HasPrefix(m.Name, prefix) {
+			out = append(out, m.Name)
+		}
+	}
+	for _, sub := range subResources {
+		if strings.HasPrefix(sub.Name, prefix) && resourceReachable(sub, filter) {
+			out = append(out, sub.Name)
+		}
+	}
+	sort.Strings(out)
+	return out
+}
+
+// longestResourceFollowedByDot finds the longest resource in resources whose
+// name is a fully-typed segment of text (text begins with "name."), returning
+// it, the byte length consumed (incl. the dot), and whether one matched.
+func longestResourceFollowedByDot(resources []meta.Resource, text string) (meta.Resource, int, bool) {
+	best := meta.Resource{}
+	bestLen := -1
+	for _, r := range resources {
+		if len(r.Name) > bestLen && strings.HasPrefix(text, r.Name+".") {
+			best = r
+			bestLen = len(r.Name)
+		}
+	}
+	if bestLen < 0 {
+		return meta.Resource{}, 0, false
+	}
+	return best, len(best.Name) + 1, true
+}
+
+// findResource resolves a resource path against a service, descending nested
+// resources. At each level it consumes the longest leading run of parts that
+// names a resource at that level, so both flat dotted keys ("chat.members")
+// and genuinely nested resources ("spaces" > "items") resolve. This descent is
+// symmetric to walkResources, which guarantees every path WalkMethods emits
+// resolves back (the round-trip contract). Returns the deepest matched resource
+// (Name injected), its path segments, the unconsumed remainder, and whether
+// anything matched.
+//
+// Descent is greedy and resource-first: the one ambiguous case is a resource
+// that has BOTH a method and a sub-resource of the same name — the sub-resource
+// wins and shadows the method, so Resolve can never reach that method. Real
+// metadata never collides the two, so this is theoretical.
+func findResource(svc meta.Service, parts []string) (res meta.Resource, path []string, remaining []string, ok bool) {
+	level := svc.Resources
+	remaining = parts
+	for len(remaining) > 0 {
+		matched, name, n := longestResourcePrefix(level, remaining)
+		if n == 0 {
+			break
+		}
+		matched.Name = name
+		res = matched
+		path = append(path, name)
+		remaining = remaining[n:]
+		level = matched.Resources
+		ok = true
+	}
+	return res, path, remaining, ok
+}
+
+// longestResourcePrefix finds the longest leading run of segs (joined by ".")
+// that names a resource in level, returning the resource, its dotted name, and
+// the number of segments consumed (0 if none match). Longest-first lets a flat
+// dotted key win over its single leading segment when present.
+func longestResourcePrefix(level map[string]meta.Resource, segs []string) (meta.Resource, string, int) {
+	for i := len(segs); i >= 1; i-- {
+		name := strings.Join(segs[:i], ".")
+		if r, ok := level[name]; ok {
+			return r, name, i
+		}
+	}
+	return meta.Resource{}, "", 0
+}
+
+// resourceReachable reports whether a resource exposes a method reachable under
+// the filter — directly or in any nested sub-resource (a nil filter accepts any
+// method). A resource whose methods are all filtered out but which contains a
+// reachable nested method is still offerable, so completion can drill into it.
+func resourceReachable(res meta.Resource, filter MethodFilter) bool {
+	for _, m := range res.MethodList() {
+		if filter == nil || filter(m) {
+			return true
+		}
+	}
+	for _, sub := range res.SubResources() {
+		if resourceReachable(sub, filter) {
+			return true
+		}
+	}
+	return false
+}
+
+func (c Catalog) serviceNames() []string {
+	names := make([]string, len(c.services))
+	for i, s := range c.services {
+		names[i] = s.Name
+	}
+	return names // c.services is already name-sorted
+}
+
+func resourceNames(svc meta.Service) []string { return sortedKeys(svc.Resources) }
+func methodNames(res meta.Resource) []string  { return sortedKeys(res.Methods) }
+
+func sortedKeys[V any](m map[string]V) []string {
+	keys := make([]string, 0, len(m))
+	for k := range m {
+		keys = append(keys, k)
+	}
+	sort.Strings(keys)
+	return keys
+}

internal/apicatalog/catalog_test.go

@@ -0,0 +1,340 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package apicatalog_test
+
+import (
+	"errors"
+	"reflect"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/internal/apicatalog"
+	"github.com/larksuite/cli/internal/meta"
+)
+
+// testCatalog builds a small embedded catalog: services drive (no resources)
+// and im with a dotted resource (chat.members), a multi-method resource
+// (reactions, where list is user-only), and images.
+func testCatalog() apicatalog.Catalog {
+	im := meta.ServiceFromMap(map[string]interface{}{
+		"name": "im",
+		"resources": map[string]interface{}{
+			"chat.members": map[string]interface{}{
+				"methods": map[string]interface{}{"create": map[string]interface{}{}},
+			},
+			"reactions": map[string]interface{}{
+				"methods": map[string]interface{}{
+					"create": map[string]interface{}{},
+					"list":   map[string]interface{}{"accessTokens": []interface{}{"user"}},
+				},
+			},
+			"images": map[string]interface{}{
+				"methods": map[string]interface{}{"create": map[string]interface{}{}},
+			},
+		},
+	})
+	drive := meta.ServiceFromMap(map[string]interface{}{"name": "drive"})
+	return apicatalog.New(apicatalog.SourceEmbedded, []meta.Service{drive, im}) // already name-sorted
+}
+
+func TestNew_PreservesOrderAndLookup(t *testing.T) {
+	c := testCatalog()
+	if c.Source() != apicatalog.SourceEmbedded {
+		t.Fatalf("source = %q", c.Source())
+	}
+	names := []string{}
+	for _, s := range c.Services() {
+		names = append(names, s.Name)
+	}
+	if !reflect.DeepEqual(names, []string{"drive", "im"}) {
+		t.Errorf("Services order = %v, want [drive im]", names)
+	}
+	if _, ok := c.Service("im"); !ok {
+		t.Error("Service(im) not found")
+	}
+	if _, ok := c.Service("nope"); ok {
+		t.Error("Service(nope) should not be found")
+	}
+}
+
+// TestNew_SortsAndIsolatesInput pins the ordering contract New owns: it sorts
+// arbitrary input by service name and shallow-copies the slice so later caller
+// mutation can't reorder the Catalog.
+func TestNew_SortsAndIsolatesInput(t *testing.T) {
+	in := []meta.Service{
+		meta.ServiceFromMap(map[string]interface{}{"name": "zeta"}),
+		meta.ServiceFromMap(map[string]interface{}{"name": "alpha"}),
+	}
+	c := apicatalog.New(apicatalog.SourceEmbedded, in)
+
+	names := func() []string {
+		var out []string
+		for _, s := range c.Services() {
+			out = append(out, s.Name)
+		}
+		return out
+	}
+	if got := names(); !reflect.DeepEqual(got, []string{"alpha", "zeta"}) {
+		t.Errorf("New did not sort unsorted input: %v", got)
+	}
+
+	// Mutating the caller's slice afterward must not reorder the Catalog.
+	in[0] = meta.ServiceFromMap(map[string]interface{}{"name": "MUTATED"})
+	if got := names(); !reflect.DeepEqual(got, []string{"alpha", "zeta"}) {
+		t.Errorf("Catalog order changed after caller mutated its input slice: %v", got)
+	}
+}
+
+func TestWalkMethods_AllAndFiltered(t *testing.T) {
+	c := testCatalog()
+
+	all := c.WalkMethods(nil)
+	got := map[string]bool{}
+	for _, r := range all {
+		got[r.SchemaPath()] = true
+	}
+	want := []string{
+		"im.chat.members.create",
+		"im.images.create",
+		"im.reactions.create",
+		"im.reactions.list",
+	}
+	if len(all) != len(want) {
+		t.Fatalf("WalkMethods(nil) = %d refs, want %d (%v)", len(all), len(want), got)
+	}
+	for _, w := range want {
+		if !got[w] {
+			t.Errorf("WalkMethods(nil) missing %q", w)
+		}
+	}
+
+	// Deterministic order: services by name, resources by name, methods by name.
+	var order []string
+	for _, r := range all {
+		order = append(order, r.SchemaPath())
+	}
+	if !reflect.DeepEqual(order, want) {
+		t.Errorf("WalkMethods order = %v, want %v", order, want)
+	}
+
+	// Filter to bot-only ("tenant"): reactions.list (user-only) drops; methods
+	// with no accessTokens are permissive and stay.
+	botOnly := func(m meta.Method) bool {
+		if m.AccessTokens == nil {
+			return true
+		}
+		for _, tok := range m.AccessTokens {
+			if tok == "tenant" {
+				return true
+			}
+		}
+		return false
+	}
+	filtered := c.WalkMethods(botOnly)
+	for _, r := range filtered {
+		if r.SchemaPath() == "im.reactions.list" {
+			t.Error("filtered walk should drop user-only im.reactions.list")
+		}
+	}
+	if len(filtered) != len(all)-1 {
+		t.Errorf("filtered walk = %d, want %d", len(filtered), len(all)-1)
+	}
+}
+
+func TestMethodRef_Paths_DottedResourceStaysOneSegment(t *testing.T) {
+	c := testCatalog()
+	target, err := c.Resolve([]string{"im", "chat.members", "create"})
+	if err != nil {
+		t.Fatalf("resolve: %v", err)
+	}
+	if target.Kind != apicatalog.TargetMethod {
+		t.Fatalf("kind = %v", target.Kind)
+	}
+	m := target.Method
+	if m.SchemaPath() != "im.chat.members.create" {
+		t.Errorf("SchemaPath = %q", m.SchemaPath())
+	}
+	if !reflect.DeepEqual(m.CommandPath(), []string{"im", "chat.members", "create"}) {
+		t.Errorf("CommandPath = %v", m.CommandPath())
+	}
+	if m.ResourceName() != "chat.members" {
+		t.Errorf("ResourceName = %q, want chat.members (one segment)", m.ResourceName())
+	}
+	if m.Method.Name != "create" {
+		t.Errorf("Method.Name not injected: %q", m.Method.Name)
+	}
+}
+
+func TestResolve_DottedAndSplitFormsEquivalent(t *testing.T) {
+	c := testCatalog()
+	// schema.ParsePath splits both "im.chat.members.create" and
+	// "im chat.members create" into segments; findResource's longest-prefix
+	// must resolve the dotted resource either way.
+	a, errA := c.Resolve([]string{"im", "chat", "members", "create"}) // fully split
+	b, errB := c.Resolve([]string{"im", "chat.members", "create"})    // resource as one segment
+	if errA != nil || errB != nil {
+		t.Fatalf("errA=%v errB=%v", errA, errB)
+	}
+	if a.Method.SchemaPath() != b.Method.SchemaPath() || a.Method.SchemaPath() != "im.chat.members.create" {
+		t.Errorf("forms diverged: %q vs %q", a.Method.SchemaPath(), b.Method.SchemaPath())
+	}
+}
+
+func TestResolve_Targets(t *testing.T) {
+	c := testCatalog()
+	if tg, _ := c.Resolve(nil); tg.Kind != apicatalog.TargetAll {
+		t.Errorf("empty -> %v, want all", tg.Kind)
+	}
+	if tg, _ := c.Resolve([]string{"im"}); tg.Kind != apicatalog.TargetService || tg.Service.Name != "im" {
+		t.Errorf("[im] -> %v/%q", tg.Kind, tg.Service.Name)
+	}
+	if tg, _ := c.Resolve([]string{"im", "reactions"}); tg.Kind != apicatalog.TargetResource || tg.Resource.SchemaPath() != "im.reactions" {
+		t.Errorf("[im reactions] -> %v", tg.Kind)
+	}
+}
+
+func TestResolve_Errors(t *testing.T) {
+	c := testCatalog()
+	cases := []struct {
+		parts []string
+		kind  apicatalog.ResolveErrorKind
+	}{
+		{[]string{"nope"}, apicatalog.ErrService},
+		{[]string{"im", "nope"}, apicatalog.ErrResource},
+		{[]string{"im", "reactions", "nope"}, apicatalog.ErrMethod},
+		{[]string{"im", "reactions", "list", "extra"}, apicatalog.ErrPath},
+	}
+	for _, tc := range cases {
+		_, err := c.Resolve(tc.parts)
+		var re *apicatalog.ResolveError
+		if !errors.As(err, &re) {
+			t.Errorf("%v -> err %v, want *ResolveError", tc.parts, err)
+			continue
+		}
+		if re.Kind != tc.kind {
+			t.Errorf("%v -> kind %q, want %q", tc.parts, re.Kind, tc.kind)
+		}
+		if tc.kind != apicatalog.ErrPath && len(re.Candidates) == 0 {
+			t.Errorf("%v -> expected candidates", tc.parts)
+		}
+	}
+}
+
+// nestedCatalog adds a genuinely nested resource (spaces > items) on top of a
+// flat dotted resource (chat.members), so the round-trip contract is exercised
+// for real nesting — not just flat dotted keys.
+func nestedCatalog() apicatalog.Catalog {
+	im := meta.ServiceFromMap(map[string]interface{}{
+		"name": "im",
+		"resources": map[string]interface{}{
+			"chat.members": map[string]interface{}{
+				"methods": map[string]interface{}{"create": map[string]interface{}{}},
+			},
+			"spaces": map[string]interface{}{
+				"methods": map[string]interface{}{"create": map[string]interface{}{}},
+				"resources": map[string]interface{}{
+					"items": map[string]interface{}{
+						"methods": map[string]interface{}{"get": map[string]interface{}{}},
+					},
+				},
+			},
+		},
+	})
+	return apicatalog.New(apicatalog.SourceEmbedded, []meta.Service{im})
+}
+
+// TestResolve_WalkMethodsRoundTrip is the core catalog contract: every method
+// WalkMethods emits must Resolve back to the same method — both from its dotted
+// SchemaPath (fully split) and from its CommandPath (resource as one segment).
+// This pins findResource's nested-resource descent symmetric to walkResources,
+// so "traversable" implies "resolvable".
+func TestResolve_WalkMethodsRoundTrip(t *testing.T) {
+	for _, c := range []apicatalog.Catalog{testCatalog(), nestedCatalog()} {
+		for _, ref := range c.WalkMethods(nil) {
+			want := ref.SchemaPath()
+			for _, parts := range [][]string{
+				strings.Split(want, "."), // fully-split dotted form
+				ref.CommandPath(),        // command form (resource stays one segment)
+			} {
+				tg, err := c.Resolve(parts)
+				if err != nil {
+					t.Errorf("round-trip %v: %v", parts, err)
+					continue
+				}
+				if tg.Kind != apicatalog.TargetMethod {
+					t.Errorf("round-trip %v: kind=%v, want method", parts, tg.Kind)
+					continue
+				}
+				if tg.Method.SchemaPath() != want {
+					t.Errorf("round-trip %v: resolved to %q, want %q", parts, tg.Method.SchemaPath(), want)
+				}
+			}
+		}
+	}
+}
+
+// TestComplete_Nested pins completion closure for genuinely nested resources:
+// both the dotted and space forms must reach a nested method, symmetric to
+// Resolve (findResource descends, so completion must too).
+func TestComplete_Nested(t *testing.T) {
+	c := nestedCatalog()
+
+	// dotted: under a resource, offer its methods AND its sub-resources
+	if comps, ns := c.Complete(nil, "im.spaces.", nil); !reflect.DeepEqual(comps, []string{"im.spaces.create", "im.spaces.items."}) || ns {
+		t.Errorf("Complete([], im.spaces.) = %v noSpace=%v, want [im.spaces.create im.spaces.items.] false", comps, ns)
+	}
+	// dotted: drill into the nested sub-resource's method
+	if comps, ns := c.Complete(nil, "im.spaces.items.", nil); !reflect.DeepEqual(comps, []string{"im.spaces.items.get"}) || ns {
+		t.Errorf("Complete([], im.spaces.items.) = %v noSpace=%v, want [im.spaces.items.get] false", comps, ns)
+	}
+	// dotted: partial sub-resource name -> the sub-resource (NoSpace, more to type)
+	if comps, ns := c.Complete(nil, "im.spaces.it", nil); !reflect.DeepEqual(comps, []string{"im.spaces.items."}) || !ns {
+		t.Errorf("Complete([], im.spaces.it) = %v noSpace=%v, want [im.spaces.items.] true", comps, ns)
+	}
+	// space form: under a resource, offer methods AND sub-resources
+	if comps, _ := c.Complete([]string{"im", "spaces"}, "", nil); !reflect.DeepEqual(comps, []string{"create", "items"}) {
+		t.Errorf("Complete([im spaces], '') = %v, want [create items]", comps)
+	}
+	// space form: drill into the nested sub-resource's methods
+	if comps, _ := c.Complete([]string{"im", "spaces", "items"}, "", nil); !reflect.DeepEqual(comps, []string{"get"}) {
+		t.Errorf("Complete([im spaces items], '') = %v, want [get]", comps)
+	}
+}
+
+func TestComplete(t *testing.T) {
+	c := testCatalog()
+
+	// dotted: service prefix -> "im." (NoSpace)
+	if comps, ns := c.Complete(nil, "i", nil); !reflect.DeepEqual(comps, []string{"im."}) || !ns {
+		t.Errorf("Complete([], i) = %v noSpace=%v", comps, ns)
+	}
+	// dotted: resource prefix -> "im.reactions." (NoSpace)
+	if comps, _ := c.Complete(nil, "im.rea", nil); !reflect.DeepEqual(comps, []string{"im.reactions."}) {
+		t.Errorf("Complete([], im.rea) = %v", comps)
+	}
+	// space form: resource candidates under im (deterministic order)
+	comps, ns := c.Complete([]string{"im"}, "", nil)
+	if !reflect.DeepEqual(comps, []string{"chat.members", "images", "reactions"}) || ns {
+		t.Errorf("Complete([im], '') = %v noSpace=%v", comps, ns)
+	}
+	// space form: method candidates under reactions
+	if comps, _ := c.Complete([]string{"im", "reactions"}, "", nil); !reflect.DeepEqual(comps, []string{"create", "list"}) {
+		t.Errorf("Complete([im reactions], '') = %v", comps)
+	}
+	// filter applied: bot-only hides user-only list
+	botOnly := func(m meta.Method) bool {
+		if m.AccessTokens == nil {
+			return true
+		}
+		for _, tok := range m.AccessTokens {
+			if tok == "tenant" {
+				return true
+			}
+		}
+		return false
+	}
+	if comps, _ := c.Complete([]string{"im", "reactions"}, "", botOnly); !reflect.DeepEqual(comps, []string{"create"}) {
+		t.Errorf("Complete with bot filter = %v, want [create]", comps)
+	}
+}

internal/apicatalog/methodref.go

@@ -0,0 +1,75 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package apicatalog
+
+import (
+	"strings"
+
+	"github.com/larksuite/cli/internal/meta"
+)
+
+// TargetKind classifies what a schema/command path resolves to.
+type TargetKind string
+
+const (
+	TargetAll      TargetKind = "all"      // empty path: every method
+	TargetService  TargetKind = "service"  // <service>
+	TargetResource TargetKind = "resource" // <service> <resource...>
+	TargetMethod   TargetKind = "method"   // <service> <resource...> <method>
+)
+
+// Target is the result of Catalog.Resolve. Resource and Method are populated
+// only for TargetResource and TargetMethod respectively.
+type Target struct {
+	Kind     TargetKind
+	Service  meta.Service
+	Resource *ResourceRef
+	Method   *MethodRef
+}
+
+// ResourceRef identifies one resource within a service. Path holds the resource
+// path segments (one element for the common flat dotted resource like
+// "chat.members"; multiple for genuinely nested resources).
+type ResourceRef struct {
+	Service  meta.Service
+	Resource meta.Resource
+	Path     []string
+}
+
+// MethodRef identifies one method, carrying the full navigation context so the
+// command path and schema path can be derived without re-walking the catalog.
+type MethodRef struct {
+	Service      meta.Service
+	Resource     meta.Resource
+	ResourcePath []string
+	Method       meta.Method
+}
+
+// SchemaPath is the dotted "service.resource" identifier.
+func (r ResourceRef) SchemaPath() string {
+	return r.Service.Name + "." + strings.Join(r.Path, ".")
+}
+
+// ServiceName returns the owning service name.
+func (r MethodRef) ServiceName() string { return r.Service.Name }
+
+// ResourceName is the dotted resource path, e.g. "chat.members".
+func (r MethodRef) ResourceName() string { return strings.Join(r.ResourcePath, ".") }
+
+// MethodName returns the method's own name.
+func (r MethodRef) MethodName() string { return r.Method.Name }
+
+// SchemaPath is the dotted "service.resource.method" identifier, e.g.
+// "im.chat.members.create".
+func (r MethodRef) SchemaPath() string {
+	return r.Service.Name + "." + strings.Join(r.ResourcePath, ".") + "." + r.Method.Name
+}
+
+// CommandPath is the CLI argv segments, e.g. ["im", "chat.members", "create"].
+func (r MethodRef) CommandPath() []string {
+	out := make([]string, 0, len(r.ResourcePath)+2)
+	out = append(out, r.Service.Name)
+	out = append(out, r.ResourcePath...)
+	return append(out, r.Method.Name)
+}

internal/apicatalog/path.go

@@ -0,0 +1,31 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package apicatalog
+
+import "strings"
+
+// ParsePath normalizes positional command arguments into the path segments
+// Resolve consumes. It accepts two equivalent forms:
+//
+//	im.messages.reply  -> single arg, split on "."
+//	im messages reply  -> multiple args, used as-is
+//
+// "im chat.members bots" as a single quoted arg is NOT supported; quote
+// arguments individually if your shell needs it. A resource keeps its internal
+// dots when passed as one segment (e.g. "chat.members"); findResource's
+// longest-prefix descent resolves both the split and the one-segment forms to
+// the same target. Returns nil for zero args (bare invocation -> TargetAll).
+func ParsePath(args []string) []string {
+	switch len(args) {
+	case 0:
+		return nil
+	case 1:
+		if strings.Contains(args[0], ".") {
+			return strings.Split(args[0], ".")
+		}
+		return []string{args[0]}
+	default:
+		return args
+	}
+}

internal/apicatalog/path_test.go

@@ -1,11 +1,13 @@
 // Copyright (c) 2026 Lark Technologies Pte. Ltd.
 // SPDX-License-Identifier: MIT
 
-package schema
+package apicatalog_test
 
 import (
 	"reflect"
 	"testing"
+
+	"github.com/larksuite/cli/internal/apicatalog"
 )
 
 func TestParsePath(t *testing.T) {
@@ -25,7 +27,7 @@ func TestParsePath(t *testing.T) {
 	}
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
-			got := ParsePath(tt.args)
+			got := apicatalog.ParsePath(tt.args)
 			if !reflect.DeepEqual(got, tt.want) {
 				t.Errorf("ParsePath(%v) = %v, want %v", tt.args, got, tt.want)
 			}

internal/apicatalog/resolveerror.go

@@ -0,0 +1,30 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package apicatalog
+
+// ResolveErrorKind classifies a Resolve failure so the command layer can render
+// the right hint without re-deriving what was being looked up.
+type ResolveErrorKind string
+
+const (
+	ErrService  ResolveErrorKind = "service"
+	ErrResource ResolveErrorKind = "resource"
+	ErrMethod   ResolveErrorKind = "method"
+	ErrPath     ResolveErrorKind = "path" // method exists but trailing segments don't resolve
+)
+
+// ResolveError is returned by Catalog.Resolve. Subject is the dotted thing that
+// failed to resolve; Candidates lists the available names at that level (nil for
+// ErrPath, which instead carries the matched Method and the unresolved Trailing).
+type ResolveError struct {
+	Kind       ResolveErrorKind
+	Subject    string
+	Candidates []string
+	Method     string
+	Trailing   string
+}
+
+func (e *ResolveError) Error() string {
+	return "unknown " + string(e.Kind) + ": " + e.Subject
+}

internal/appmeta/app_callbacks.go

@@ -0,0 +1,47 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package appmeta
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+)
+
+// FetchSubscribedCallbacks returns the app's currently subscribed callback names
+// from application/get. On a successful fetch it always returns a non-nil slice
+// (empty when callback_info is absent or lists no callbacks) so callers can
+// distinguish "fetched, zero callbacks subscribed" — a definitive console state
+// that must fail the precheck — from a fetch error (nil), which is a
+// weak-dependency skip. Identity must be bot: the endpoint is app-level.
+func FetchSubscribedCallbacks(ctx context.Context, client APIClient, appID string) ([]string, error) {
+	path := fmt.Sprintf("/open-apis/application/v6/applications/%s?lang=zh_cn", appID)
+	raw, err := client.CallAPI(ctx, "GET", path, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	var envelope struct {
+		Data struct {
+			App struct {
+				CallbackInfo *struct {
+					SubscribedCallbacks []string `json:"subscribed_callbacks"`
+				} `json:"callback_info"`
+			} `json:"app"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(raw, &envelope); err != nil {
+		return nil, fmt.Errorf("decode application response: %w", err)
+	}
+	// callback_info also carries callback_type (e.g. "websocket"); it is
+	// intentionally not parsed or validated. Feishu open-platform callbacks are
+	// delivered over WebSocket only (confirmed), matching the CLI's WebSocket
+	// event source, so subscribed_callbacks alone is sufficient for the precheck.
+	// Revisit and validate callback_type if non-WebSocket delivery ever appears.
+	callbacks := []string{}
+	if ci := envelope.Data.App.CallbackInfo; ci != nil {
+		callbacks = append(callbacks, ci.SubscribedCallbacks...)
+	}
+	return callbacks, nil
+}

internal/appmeta/app_callbacks_test.go

@@ -0,0 +1,101 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package appmeta
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"testing"
+)
+
+var errFakeFetch = errors.New("fake fetch error")
+
+type fakeCallbackClient struct {
+	raw string
+	err error
+}
+
+func (f fakeCallbackClient) CallAPI(_ context.Context, _, _ string, _ interface{}) (json.RawMessage, error) {
+	if f.err != nil {
+		return nil, f.err
+	}
+	return json.RawMessage(f.raw), nil
+}
+
+func TestFetchSubscribedCallbacks_ParsesList(t *testing.T) {
+	raw := `{"code":0,"data":{"app":{"callback_info":{"callback_type":"websocket","subscribed_callbacks":["card.action.trigger","profile.view.get"]}}},"msg":"success"}`
+	got, err := FetchSubscribedCallbacks(context.Background(), fakeCallbackClient{raw: raw}, "cli_x")
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	want := []string{"card.action.trigger", "profile.view.get"}
+	if len(got) != len(want) {
+		t.Fatalf("got %v, want %v", got, want)
+	}
+	for i := range want {
+		if got[i] != want[i] {
+			t.Errorf("got[%d] = %q, want %q", i, got[i], want[i])
+		}
+	}
+}
+
+func TestFetchSubscribedCallbacks_NoCallbackInfo(t *testing.T) {
+	// A successful fetch with no callback_info means "zero callbacks subscribed",
+	// which must be a non-nil empty slice (distinct from a fetch error's nil) so
+	// the precheck reports a required callback as missing instead of skipping.
+	raw := `{"code":0,"data":{"app":{"app_id":"cli_x"}},"msg":"success"}`
+	got, err := FetchSubscribedCallbacks(context.Background(), fakeCallbackClient{raw: raw}, "cli_x")
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if got == nil {
+		t.Fatalf("got nil, want non-nil empty slice")
+	}
+	if len(got) != 0 {
+		t.Errorf("got %v, want empty", got)
+	}
+}
+
+func TestFetchSubscribedCallbacks_FetchError(t *testing.T) {
+	// A fetch error must return nil so the caller treats it as a weak-dependency skip.
+	got, err := FetchSubscribedCallbacks(context.Background(), fakeCallbackClient{err: errFakeFetch}, "cli_x")
+	if err == nil {
+		t.Fatal("expected error")
+	}
+	if got != nil {
+		t.Errorf("got %v, want nil on fetch error", got)
+	}
+}
+
+func TestFetchSubscribedCallbacks_CallbackInfoPresentButNull(t *testing.T) {
+	// callback_info present but subscribed_callbacks explicitly null → must be
+	// a non-nil empty slice so the precheck reports missing callbacks.
+	raw := `{"code":0,"data":{"app":{"callback_info":{"subscribed_callbacks":null}}},"msg":"success"}`
+	got, err := FetchSubscribedCallbacks(context.Background(), fakeCallbackClient{raw: raw}, "cli_x")
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if got == nil {
+		t.Fatalf("got nil, want non-nil empty slice when subscribed_callbacks is null")
+	}
+	if len(got) != 0 {
+		t.Errorf("got %v, want empty", got)
+	}
+}
+
+func TestFetchSubscribedCallbacks_CallbackInfoPresentButOmitted(t *testing.T) {
+	// callback_info present but subscribed_callbacks omitted → same as null: non-nil empty.
+	raw := `{"code":0,"data":{"app":{"callback_info":{"callback_type":"websocket"}}},"msg":"success"}`
+	got, err := FetchSubscribedCallbacks(context.Background(), fakeCallbackClient{raw: raw}, "cli_x")
+	if err != nil {
+		t.Fatalf("unexpected err: %v", err)
+	}
+	if got == nil {
+		t.Fatalf("got nil, want non-nil empty slice when subscribed_callbacks is omitted")
+	}
+	if len(got) != 0 {
+		t.Errorf("got %v, want empty", got)
+	}
+}

internal/auth/errors.go

@@ -6,7 +6,6 @@ package auth
 import (
 	"errors"
 	"fmt"
-	"strings"
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/output"
@@ -22,7 +21,10 @@ var TokenRetryCodes = map[int]bool{
 	output.LarkErrTokenExpired: true,
 }
 
-// NeedAuthorizationError is thrown when no valid UAT exists.
+// NeedAuthorizationError is the sentinel preserved in the Cause chain of the
+// typed missing-UAT error so existing errors.As(&NeedAuthorizationError{})
+// consumers keep matching after the construction site moved to the typed
+// taxonomy. It is never surfaced on the wire on its own.
 type NeedAuthorizationError struct {
 	UserOpenId string
 }
@@ -32,24 +34,31 @@ func (e *NeedAuthorizationError) Error() string {
 	return fmt.Sprintf("%s (user: %s)", needUserAuthorizationMarker, e.UserOpenId)
 }
 
+// NewNeedUserAuthorizationError builds the typed *errs.AuthenticationError
+// returned when no valid UAT exists for userOpenID. The Message keeps the
+// need_user_authorization marker, the Hint converges on the same auth-login
+// recovery vocabulary as the token-missing surface in internal/client, and the
+// legacy *NeedAuthorizationError sentinel is preserved in the Cause chain for
+// errors.As / errors.Is traversal.
+func NewNeedUserAuthorizationError(userOpenID string) *errs.AuthenticationError {
+	return errs.NewAuthenticationError(errs.SubtypeTokenMissing,
+		"%s (user: %s)", needUserAuthorizationMarker, userOpenID).
+		WithUserOpenID(userOpenID).
+		WithHint("run: lark-cli auth login to re-authorize").
+		WithCause(&NeedAuthorizationError{UserOpenId: userOpenID})
+}
+
 // IsNeedUserAuthorizationError reports whether err represents a missing-UAT
-// failure, either as the original auth error or as a wrapped ExitError.
+// failure. It matches the legacy *NeedAuthorizationError sentinel, which is
+// preserved in the Cause chain of the typed missing-UAT error, so errors.As
+// traverses into the typed *errs.AuthenticationError as well.
 func IsNeedUserAuthorizationError(err error) bool {
 	if err == nil {
 		return false
 	}
 
 	var needAuthErr *NeedAuthorizationError
-	if errors.As(err, &needAuthErr) {
-		return true
-	}
-
-	// Deprecated: legacy *output.ExitError / string-match branches; removed after typed migration.
-	var exitErr *output.ExitError
-	if errors.As(err, &exitErr) && exitErr.Detail != nil {
-		return strings.Contains(exitErr.Detail.Message, needUserAuthorizationMarker)
-	}
-	return strings.Contains(err.Error(), needUserAuthorizationMarker)
+	return errors.As(err, &needAuthErr)
 }
 
 // SecurityPolicyError is preserved as a Go type alias so existing

internal/auth/errors_test.go

@@ -6,7 +6,7 @@ package auth
 import (
 	"testing"
 
-	"github.com/larksuite/cli/internal/output"
+	"github.com/larksuite/cli/errs"
 )
 
 func TestIsNeedUserAuthorizationError(t *testing.T) {
@@ -22,15 +22,16 @@ func TestIsNeedUserAuthorizationError(t *testing.T) {
 		}
 	})
 
-	t.Run("wrapped exit error", func(t *testing.T) {
-		err := output.ErrNetwork("API call failed: %s", &NeedAuthorizationError{})
-		if !IsNeedUserAuthorizationError(err) {
-			t.Fatal("expected wrapped ExitError to match")
+	t.Run("typed missing-UAT error carries sentinel in cause", func(t *testing.T) {
+		// The typed constructor preserves the legacy sentinel in the Cause
+		// chain, so errors.As traverses into it.
+		if !IsNeedUserAuthorizationError(NewNeedUserAuthorizationError("u_1")) {
+			t.Fatal("expected typed missing-UAT error to match via its cause chain")
 		}
 	})
 
 	t.Run("other error", func(t *testing.T) {
-		err := output.ErrNetwork("API call failed: timeout")
+		err := errs.NewNetworkError(errs.SubtypeNetworkTransport, "API call failed: timeout")
 		if IsNeedUserAuthorizationError(err) {
 			t.Fatal("expected unrelated error not to match")
 		}

internal/auth/uat_client.go

@@ -71,7 +71,7 @@ var refreshLocks sync.Map
 func GetValidAccessToken(httpClient *http.Client, opts UATCallOptions) (string, error) {
 	stored := GetStoredToken(opts.AppId, opts.UserOpenId)
 	if stored == nil {
-		return "", &NeedAuthorizationError{UserOpenId: opts.UserOpenId}
+		return "", NewNeedUserAuthorizationError(opts.UserOpenId)
 	}
 
 	status := TokenStatus(stored)
@@ -86,7 +86,7 @@ func GetValidAccessToken(httpClient *http.Client, opts UATCallOptions) (string,
 			return "", err
 		}
 		if refreshed == nil {
-			return "", &NeedAuthorizationError{UserOpenId: opts.UserOpenId}
+			return "", NewNeedUserAuthorizationError(opts.UserOpenId)
 		}
 		return refreshed.AccessToken, nil
 	}
@@ -99,7 +99,7 @@ func GetValidAccessToken(httpClient *http.Client, opts UATCallOptions) (string,
 			fmt.Fprintf(os.Stderr, "[lark-cli] [WARN] uat-client: failed to remove token: %v\n", err)
 		}
 	}
-	return "", &NeedAuthorizationError{UserOpenId: opts.UserOpenId}
+	return "", NewNeedUserAuthorizationError(opts.UserOpenId)
 }
 
 // refreshWithLock acquires a file lock before attempting to refresh the token.

internal/client/api_errors_test.go

@@ -16,7 +16,6 @@ import (
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 
 	"github.com/larksuite/cli/errs"
-	"github.com/larksuite/cli/internal/output"
 )
 
 // ─────────────────────────────────────────────────────────────────────────────
@@ -264,19 +263,16 @@ func TestWrapJSONResponseParseError_Nil(t *testing.T) {
 // Cross-cutting: existing tests already in this file (kept and adjusted below).
 // ─────────────────────────────────────────────────────────────────────────────
 
-// TestWrapDoAPIError_LegacyExitErrorNoLongerPassesThrough pins that legacy
-// *output.ExitError (auth/validation/api flavours) is NOT a problemCarrier
-// and is therefore not pass-through — only typed *errs.* values are.
-// Legacy values fall through to the network/JSON branches based on their
-// inner shape.
-func TestWrapDoAPIError_LegacyExitErrorNoLongerPassesThrough(t *testing.T) {
-	// An *output.ErrAuth has no embedded Problem and no JSON-decode chain;
-	// it routes to the network branch with the fallback transport subtype.
-	got := WrapDoAPIError(output.ErrAuth("no access token available for user"))
+// TestWrapDoAPIError_UntypedErrorRoutesToNetwork pins that a plain untyped
+// error (no embedded Problem, no JSON-decode chain) is NOT pass-through —
+// only typed *errs.* values are. It routes to the network branch with the
+// fallback transport subtype.
+func TestWrapDoAPIError_UntypedErrorRoutesToNetwork(t *testing.T) {
+	got := WrapDoAPIError(errors.New("no access token available for user"))
 
 	var ne *errs.NetworkError
 	if !errors.As(got, &ne) {
-		t.Fatalf("expected *errs.NetworkError (legacy ExitError no longer pass-through), got %T (%v)", got, got)
+		t.Fatalf("expected *errs.NetworkError for an untyped error, got %T (%v)", got, got)
 	}
 	// Sanity: not silently re-classified as JSON-decode.
 	var ie *errs.InternalError

internal/client/client.go

@@ -19,11 +19,9 @@ import (
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 
 	"github.com/larksuite/cli/errs"
-	internalauth "github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/credential"
 	"github.com/larksuite/cli/internal/errclass"
-	"github.com/larksuite/cli/internal/errcompat"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/util"
 )
@@ -54,16 +52,11 @@ func (c *APIClient) resolveAccessToken(ctx context.Context, as core.Identity) (s
 		if errors.As(err, &unavailableErr) {
 			return "", newTokenMissingError(as, unavailableErr)
 		}
-		// NeedAuthorizationError from the credential chain (e.g. UAT refresh
-		// returned need_user_authorization) must surface as typed
-		// AuthenticationError. Without this, WrapDoAPIError would wrap the
-		// raw err as NetworkError, and cmd/root.go's outer-typed gate would
-		// then skip PromoteAuthError — leaving the user with exit 4 and no
-		// auth-login hint instead of exit 3 typed authentication.
-		var needAuthErr *internalauth.NeedAuthorizationError
-		if errors.As(err, &needAuthErr) {
-			return "", errcompat.PromoteAuthError(needAuthErr)
-		}
+		// The credential chain already emits a typed *errs.AuthenticationError
+		// for the missing-UAT case (e.g. UAT refresh returned
+		// need_user_authorization), so it flows through unchanged: the
+		// outer-typed gate in cmd/root.go and the idempotent WrapDoAPIError
+		// both preserve its authentication category and exit 3.
 		return "", err
 	}
 	if result.Token == "" {
@@ -120,24 +113,22 @@ func (c *APIClient) buildApiReq(request RawApiRequest) (*larkcore.ApiReq, []lark
 //
 // SDK Do() failures are normalised through WrapDoAPIError so every caller
 // (cmd/api, RuntimeContext, shortcuts) gets the same wire shape without
-// each one remembering to wrap. Today that wire shape is still the legacy
-// *output.ExitError envelope (network / api_error); future framework-
-// boundary migration flips WrapDoAPIError to typed *errs.NetworkError /
-// *errs.InternalError per the contract in errs/ERROR_CONTRACT.md.
-// Errors that arrive already-classified (legacy *output.ExitError from
-// resolveAccessToken's missing-credential paths, or a typed *errs.*) flow
-// through unchanged.
+// each one remembering to wrap. WrapDoAPIError classifies a raw transport
+// failure into a typed *errs.NetworkError / *errs.InternalError per the
+// contract in errs/ERROR_CONTRACT.md. Errors that arrive already-classified
+// (a typed *errs.* from resolveAccessToken's missing-credential paths or
+// elsewhere) flow through unchanged.
 func (c *APIClient) DoSDKRequest(ctx context.Context, req *larkcore.ApiReq, as core.Identity, extraOpts ...larkcore.RequestOptionFunc) (*larkcore.ApiResp, error) {
 	var opts []larkcore.RequestOptionFunc
 
 	token, err := c.resolveAccessToken(ctx, as)
 	if err != nil {
 		// WrapDoAPIError is idempotent on already-classified errors:
-		// the *output.ExitError that resolveAccessToken returns for missing
-		// tokens (via output.ErrAuth) passes through with its auth category
-		// and exit 3 intact, and any future typed *errs.* error from the
-		// credential chain survives the same way. Only stray untyped errors
-		// (raw fmt.Errorf) get the transport-or-internal fallback.
+		// the typed *errs.AuthenticationError that resolveAccessToken returns
+		// for missing tokens passes through with its auth category and exit 3
+		// intact, and any other typed *errs.* error from the credential chain
+		// survives the same way. Only stray untyped errors (raw fmt.Errorf)
+		// get the transport-or-internal fallback.
 		return nil, WrapDoAPIError(err)
 	}
 	if as.IsBot() {
@@ -162,7 +153,7 @@ func (c *APIClient) DoSDKRequest(ctx context.Context, req *larkcore.ApiReq, as c
 // Auth is resolved via Credential (same as DoSDKRequest). Security headers and
 // any extra headers from opts are applied automatically.
 // HTTP errors (status >= 400) are handled internally: the body is read (up to 4 KB),
-// closed, and returned as an output.ErrNetwork — callers only receive successful responses.
+// closed, and returned as a typed *errs.NetworkError — callers only receive successful responses.
 func (c *APIClient) DoStream(ctx context.Context, req *larkcore.ApiReq, as core.Identity, opts ...Option) (*http.Response, error) {
 	cfg := buildConfig(opts)
 
@@ -332,10 +323,10 @@ func (c *APIClient) DoAPI(ctx context.Context, request RawApiRequest) (*larkcore
 //
 // JSON parse failures are wrapped via WrapJSONResponseParseError so callers
 // (notably the pagination loop and --page-all paths in cmd/api / cmd/service)
-// see an *output.ExitError envelope (api_error for malformed JSON, network
-// for everything else) instead of a bare fmt.Errorf — otherwise an empty
-// or malformed page body would surface to the root handler as a plain-text
-// "Error: ..." line and bypass the JSON stderr envelope contract.
+// see a typed *errs.InternalError (invalid_response) instead of a bare
+// fmt.Errorf — otherwise an empty or malformed page body would surface to the
+// root handler as a plain-text "Error: ..." line and bypass the JSON stderr
+// envelope contract.
 func (c *APIClient) CallAPI(ctx context.Context, request RawApiRequest) (interface{}, error) {
 	resp, err := c.DoAPI(ctx, request)
 	if err != nil {
@@ -350,7 +341,7 @@ func (c *APIClient) CallAPI(ctx context.Context, request RawApiRequest) (interfa
 
 // paginateLoop runs the core pagination loop. For each successful page (code == 0),
 // it calls onResult if non-nil. It always accumulates and returns all raw page results.
-func (c *APIClient) paginateLoop(ctx context.Context, request RawApiRequest, opts PaginationOptions, onResult func(interface{})) ([]interface{}, error) {
+func (c *APIClient) paginateLoop(ctx context.Context, request RawApiRequest, opts PaginationOptions, onResult func(interface{}) error) ([]interface{}, error) {
 	var allResults []interface{}
 	var pageToken string
 	page := 0
@@ -399,7 +390,9 @@ func (c *APIClient) paginateLoop(ctx context.Context, request RawApiRequest, opt
 		}
 
 		if onResult != nil {
-			onResult(result)
+			if err := onResult(result); err != nil {
+				return allResults, err
+			}
 		}
 		allResults = append(allResults, result)
 
@@ -452,28 +445,31 @@ func (c *APIClient) PaginateAll(ctx context.Context, request RawApiRequest, opts
 // StreamPages fetches all pages and streams each page's list items via onItems.
 // Returns the last page result (for error checking), whether any list items were found,
 // and any network error. Use this for streaming formats (ndjson, table, csv).
-func (c *APIClient) StreamPages(ctx context.Context, request RawApiRequest, onItems func([]interface{}), opts PaginationOptions) (result interface{}, hasItems bool, err error) {
+func (c *APIClient) StreamPages(ctx context.Context, request RawApiRequest, onItems func([]interface{}) error, opts PaginationOptions) (result interface{}, hasItems bool, err error) {
 	totalItems := 0
-	results, loopErr := c.paginateLoop(ctx, request, opts, func(r interface{}) {
+	results, loopErr := c.paginateLoop(ctx, request, opts, func(r interface{}) error {
 		resultMap, ok := r.(map[string]interface{})
 		if !ok {
-			return
+			return nil
 		}
 		data, ok := resultMap["data"].(map[string]interface{})
 		if !ok {
-			return
+			return nil
 		}
 		arrayField := output.FindArrayField(data)
 		if arrayField == "" {
-			return
+			return nil
 		}
 		items, ok := data[arrayField].([]interface{})
 		if !ok {
-			return
+			return nil
 		}
 		totalItems += len(items)
-		onItems(items)
+		if err := onItems(items); err != nil {
+			return err
+		}
 		hasItems = true
+		return nil
 	})
 	if loopErr != nil {
 		return nil, false, loopErr

internal/client/client_test.go

@@ -124,8 +124,9 @@ func TestStreamPages_NonBatchAPI_NoArrayField(t *testing.T) {
 		Method: "GET",
 		URL:    "/open-apis/contact/v3/users/u123",
 		As:     "bot",
-	}, func(items []interface{}) {
+	}, func(items []interface{}) error {
 		t.Error("onItems should not be called for non-batch API")
+		return nil
 	}, PaginationOptions{})
 
 	if err != nil {
@@ -168,8 +169,9 @@ func TestStreamPages_BatchAPI_WithArrayField(t *testing.T) {
 		Method: "GET",
 		URL:    "/open-apis/contact/v3/users",
 		As:     "bot",
-	}, func(items []interface{}) {
+	}, func(items []interface{}) error {
 		streamedItems = append(streamedItems, items...)
+		return nil
 	}, PaginationOptions{})
 
 	if err != nil {
@@ -189,6 +191,58 @@ func TestStreamPages_BatchAPI_WithArrayField(t *testing.T) {
 	}
 }
 
+func TestStreamPages_OnItemsErrorStopsPagination(t *testing.T) {
+	apiCalls := 0
+	rt := roundTripFunc(func(req *http.Request) (*http.Response, error) {
+		apiCalls++
+		if apiCalls == 1 {
+			return jsonResponse(map[string]interface{}{
+				"code": 0, "msg": "ok",
+				"data": map[string]interface{}{
+					"items":      []interface{}{map[string]interface{}{"id": "1"}},
+					"has_more":   true,
+					"page_token": "next",
+				},
+			}), nil
+		}
+		return jsonResponse(map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "2"}},
+				"has_more": false,
+			},
+		}), nil
+	})
+
+	ac, _ := newTestAPIClient(t, rt)
+	sentinel := errors.New("stop streaming")
+	var streamedItems []interface{}
+	result, hasItems, err := ac.StreamPages(context.Background(), RawApiRequest{
+		Method: "GET",
+		URL:    "/open-apis/contact/v3/users",
+		As:     "bot",
+	}, func(items []interface{}) error {
+		streamedItems = append(streamedItems, items...)
+		return sentinel
+	}, PaginationOptions{PageDelay: 0})
+
+	if !errors.Is(err, sentinel) {
+		t.Fatalf("err = %v, want sentinel", err)
+	}
+	if result != nil {
+		t.Fatalf("result = %#v, want nil when callback stops pagination", result)
+	}
+	if hasItems {
+		t.Fatal("hasItems = true, want false when callback stops before returning")
+	}
+	if apiCalls != 1 {
+		t.Fatalf("apiCalls = %d, want early stop after first page", apiCalls)
+	}
+	if len(streamedItems) != 1 {
+		t.Fatalf("streamedItems = %d, want first page only", len(streamedItems))
+	}
+}
+
 func TestPaginateAll_PageLimitStopsPagination(t *testing.T) {
 	apiCalls := 0
 	rt := roundTripFunc(func(req *http.Request) (*http.Response, error) {
@@ -474,8 +528,7 @@ func (f *failingTokenResolver) ResolveToken(_ context.Context, spec credential.T
 
 // TestResolveAccessToken_NoToken_ReturnsTypedAuthenticationError pins that
 // the missing-token path of resolveAccessToken returns the typed
-// *errs.AuthenticationError{Subtype: TokenMissing} rather than the legacy
-// *output.ExitError envelope.
+// *errs.AuthenticationError{Subtype: TokenMissing}.
 func TestResolveAccessToken_NoToken_ReturnsTypedAuthenticationError(t *testing.T) {
 	ac := &APIClient{
 		HTTP:       &http.Client{},
@@ -500,24 +553,22 @@ func TestResolveAccessToken_NoToken_ReturnsTypedAuthenticationError(t *testing.T
 	}
 }
 
-// needAuthTokenResolver returns *internalauth.NeedAuthorizationError to
-// exercise the P1 regression path: a credential chain that signals
-// "user must re-authorize" must surface as typed AuthenticationError, not
-// fall through to the generic err return which WrapDoAPIError would then
-// wrap as NetworkError (the outer-typed dispatcher gate would then skip
-// PromoteAuthError and the user would see exit 4 with no auth-login hint).
+// needAuthTokenResolver mirrors the production credential chain: the
+// missing-UAT case is constructed typed at the source (internal/auth) and
+// carries the legacy *NeedAuthorizationError sentinel in its Cause chain. It
+// must surface as a typed AuthenticationError and flow through resolveAccessToken
+// and WrapDoAPIError unchanged (never mis-classified as NetworkError).
 type needAuthTokenResolver struct {
 	userOpenID string
 }
 
 func (f *needAuthTokenResolver) ResolveToken(_ context.Context, _ credential.TokenSpec) (*credential.TokenResult, error) {
-	return nil, &internalauth.NeedAuthorizationError{UserOpenId: f.userOpenID}
+	return nil, internalauth.NewNeedUserAuthorizationError(f.userOpenID)
 }
 
 // TestResolveAccessToken_NeedAuthorization_SurfacesAsTypedAuthentication
-// is the codex P1 regression test: without this branch, the credential
-// chain's NeedAuthorizationError would propagate raw and WrapDoAPIError
-// would mis-classify it as NetworkError.
+// pins that the typed missing-UAT error from the credential chain reaches the
+// caller as a typed AuthenticationError with the marker and sentinel intact.
 func TestResolveAccessToken_NeedAuthorization_SurfacesAsTypedAuthentication(t *testing.T) {
 	ac := &APIClient{
 		HTTP:       &http.Client{},
@@ -623,7 +674,7 @@ func TestDoSDKRequest_TransportFailureWrapsAsNetwork(t *testing.T) {
 // *errs.InternalError{Subtype: invalid_response} with the rawAPIJSONHint
 // preserved on Problem.Hint. Pagination / cmd/api / cmd/service callers see
 // the typed JSON stderr envelope (exit 5/internal) — wire `type` is
-// "internal", not the legacy "api_error".
+// "internal".
 func TestCallAPI_ParseJSONFailureWrapsAsAPI(t *testing.T) {
 	rt := roundTripFunc(func(_ *http.Request) (*http.Response, error) {
 		return &http.Response{

internal/client/pagination.go

@@ -4,7 +4,6 @@
 package client
 
 import (
-	"context"
 	"fmt"
 	"io"
 
@@ -19,33 +18,6 @@ type PaginationOptions struct {
 	Identity  core.Identity // identity passed to checkErr; defaults to AsUser when empty
 }
 
-// PaginateWithJq aggregates all pages, checks for API errors, then applies a jq filter.
-// If checkErr detects an error, the raw result is printed as JSON before returning the error.
-func PaginateWithJq(ctx context.Context, ac *APIClient, request RawApiRequest,
-	jqExpr string, out io.Writer, pagOpts PaginationOptions,
-	checkErr func(interface{}, core.Identity) error) error {
-	result, err := ac.PaginateAll(ctx, request, pagOpts)
-	if err != nil {
-		return err
-	}
-	// Identity resolution honors pagOpts.Identity first, then the request's
-	// own identity, and only falls back to AsUser when neither caller
-	// supplied one. Without checking request.As, bot/auto requests would
-	// always be classified as user identity for checkErr.
-	identity := pagOpts.Identity
-	if identity == "" {
-		identity = request.As
-	}
-	if identity == "" || identity == core.AsAuto {
-		identity = core.AsUser
-	}
-	if apiErr := checkErr(result, identity); apiErr != nil {
-		output.FormatValue(out, result, output.FormatJSON)
-		return apiErr
-	}
-	return output.JqFilter(out, result, jqExpr)
-}
-
 func mergePagedResults(w io.Writer, results []interface{}) interface{} {
 	if len(results) == 0 {
 		return map[string]interface{}{}

internal/client/response.go

@@ -41,6 +41,26 @@ type ResponseOptions struct {
 	CheckError func(result interface{}, identity core.Identity) error
 }
 
+// httpStatusError classifies an HTTP error response by status when the body
+// carries no usable business error: 5xx → NetworkError (server tier), 404 →
+// APIError/not_found, any other 4xx → APIError/unknown. Used wherever a
+// status >= 400 must not be swallowed — a non-JSON body, an unparseable body,
+// or a JSON body whose business code is 0.
+func httpStatusError(status int, rawBody []byte) error {
+	body := util.TruncateStrWithEllipsis(strings.TrimSpace(string(rawBody)), 500)
+	if status >= 500 {
+		return errs.NewNetworkError(errs.SubtypeNetworkServer,
+			"HTTP %d: %s", status, body).
+			WithCode(status)
+	}
+	subtype := errs.SubtypeUnknown
+	if status == 404 {
+		subtype = errs.SubtypeNotFound
+	}
+	return errs.NewAPIError(subtype, "HTTP %d: %s", status, body).
+		WithCode(status)
+}
+
 // HandleResponse routes a raw *larkcore.ApiResp to the appropriate output:
 //  1. If Content-Type is JSON, check for business errors first (even with --output).
 //  2. If --output is set and response is not a JSON error, save to file.
@@ -62,50 +82,64 @@ func HandleResponse(resp *larkcore.ApiResp, opts ResponseOptions) error {
 		}
 	}
 
-	// Non-JSON error responses (e.g. 404 text/plain from gateway): return error directly
-	// instead of falling through to the binary-save path.
-	// 5xx → typed NetworkError (server/transport tier); 4xx → typed APIError (client error).
+	// Non-JSON error responses (e.g. 404 text/plain from gateway): return error
+	// directly instead of falling through to the binary-save path.
 	if resp.StatusCode >= 400 && !IsJSONContentType(ct) && ct != "" {
-		body := util.TruncateStrWithEllipsis(strings.TrimSpace(string(resp.RawBody)), 500)
-		if resp.StatusCode >= 500 {
-			return errs.NewNetworkError(errs.SubtypeNetworkServer,
-				"HTTP %d: %s", resp.StatusCode, body).
-				WithCode(resp.StatusCode)
-		}
-		subtype := errs.SubtypeUnknown
-		if resp.StatusCode == 404 {
-			subtype = errs.SubtypeNotFound
-		}
-		return errs.NewAPIError(subtype, "HTTP %d: %s", resp.StatusCode, body).
-			WithCode(resp.StatusCode)
+		return httpStatusError(resp.StatusCode, resp.RawBody)
 	}
 
 	// JSON responses: always check for business errors before saving.
 	if IsJSONContentType(ct) || ct == "" {
 		result, err := ParseJSONResponse(resp)
 		if err != nil {
+			// An unparseable / empty body on an HTTP error (common with a
+			// missing Content-Type) must be classified by status, not reported
+			// as an internal decode failure, matching the non-JSON branch above.
+			if resp.StatusCode >= 400 {
+				return httpStatusError(resp.StatusCode, resp.RawBody)
+			}
 			return WrapJSONResponseParseError(err, resp.RawBody)
 		}
 		if apiErr := check(result, identity); apiErr != nil {
 			return apiErr
 		}
-		// Content safety scanning
-		scanResult := output.ScanForSafety(opts.CommandPath, result, opts.ErrOut)
-		if scanResult.Blocked {
-			return scanResult.BlockErr
+		// CheckResponse treats business code 0 as success, so a 4xx/5xx whose
+		// JSON body omits a non-zero code would otherwise be served as a
+		// successful result. Classify by HTTP status so it is never swallowed.
+		if resp.StatusCode >= 400 {
+			return httpStatusError(resp.StatusCode, resp.RawBody)
 		}
 		if opts.OutputPath != "" {
+			// File downloads keep the existing raw-response scan path because the
+			// saved payload is the API response body, not the success envelope.
+			scanResult := output.ScanForSafety(opts.CommandPath, result, opts.ErrOut)
+			if scanResult.Blocked {
+				return scanResult.BlockErr
+			}
 			if scanResult.Alert != nil {
 				output.WriteAlertWarning(opts.ErrOut, scanResult.Alert)
 			}
 			return saveAndPrint(opts.FileIO, resp, opts.OutputPath, opts.Out)
 		}
+
+		if opts.JqExpr != "" || opts.Format == output.FormatJSON {
+			return output.WriteSuccessEnvelope(output.SuccessEnvelopeData(result), output.SuccessEnvelopeOptions{
+				CommandPath: opts.CommandPath,
+				Identity:    string(identity),
+				JqExpr:      opts.JqExpr,
+				Out:         opts.Out,
+				ErrOut:      opts.ErrOut,
+			})
+		}
+
+		// Content safety scanning for non-JSON presentation formats.
+		scanResult := output.ScanForSafety(opts.CommandPath, result, opts.ErrOut)
+		if scanResult.Blocked {
+			return scanResult.BlockErr
+		}
 		if scanResult.Alert != nil {
 			output.WriteAlertWarning(opts.ErrOut, scanResult.Alert)
 		}
-		if opts.JqExpr != "" {
-			return output.JqFilter(opts.Out, result, opts.JqExpr)
-		}
 		output.FormatValue(opts.Out, result, opts.Format)
 		return nil
 	}

internal/client/response_test.go

@@ -5,6 +5,7 @@ package client
 
 import (
 	"bytes"
+	"encoding/json"
 	"errors"
 	"io"
 	"net/http"
@@ -16,6 +17,7 @@ import (
 	larkcore "github.com/larksuite/oapi-sdk-go/v3/core"
 
 	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/vfs/localfileio"
 )
@@ -207,15 +209,54 @@ func TestHandleResponse_JSON(t *testing.T) {
 	var out bytes.Buffer
 	var errOut bytes.Buffer
 	err := HandleResponse(resp, ResponseOptions{
-		Out:    &out,
-		ErrOut: &errOut,
-		FileIO: &localfileio.LocalFileIO{},
+		Identity: core.AsBot,
+		Out:      &out,
+		ErrOut:   &errOut,
+		FileIO:   &localfileio.LocalFileIO{},
 	})
 	if err != nil {
 		t.Fatalf("HandleResponse failed: %v", err)
 	}
-	if !bytes.Contains(out.Bytes(), []byte(`"code"`)) {
-		t.Errorf("expected JSON output, got: %s", out.String())
+	var got map[string]interface{}
+	if err := json.Unmarshal(out.Bytes(), &got); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, out.String())
+	}
+	if got["ok"] != true {
+		t.Fatalf("ok = %v, want true; output: %s", got["ok"], out.String())
+	}
+	if got["identity"] != "bot" {
+		t.Fatalf("identity = %v, want bot; output: %s", got["identity"], out.String())
+	}
+	if _, hasCode := got["code"]; hasCode {
+		t.Fatalf("success envelope leaked outer code field: %s", out.String())
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("data = %T, want object; output: %s", got["data"], out.String())
+	}
+	if data["id"] != "1" {
+		t.Fatalf("data.id = %v, want 1; output: %s", data["id"], out.String())
+	}
+}
+
+func TestHandleResponse_JSONWithJqUsesSuccessEnvelope(t *testing.T) {
+	body := []byte(`{"code":0,"msg":"ok","data":{"id":"1"}}`)
+	resp := newApiResp(body, map[string]string{"Content-Type": "application/json"})
+
+	var out bytes.Buffer
+	var errOut bytes.Buffer
+	err := HandleResponse(resp, ResponseOptions{
+		Identity: core.AsBot,
+		JqExpr:   ".data.id",
+		Out:      &out,
+		ErrOut:   &errOut,
+		FileIO:   &localfileio.LocalFileIO{},
+	})
+	if err != nil {
+		t.Fatalf("HandleResponse failed: %v", err)
+	}
+	if strings.TrimSpace(out.String()) != "1" {
+		t.Fatalf("jq output = %q, want %q", out.String(), "1")
 	}
 }
 
@@ -233,6 +274,12 @@ func TestHandleResponse_JSONWithError(t *testing.T) {
 	if err == nil {
 		t.Error("expected error for non-zero code")
 	}
+	if _, ok := errs.ProblemOf(err); !ok {
+		t.Fatalf("expected typed error, got %T: %v", err, err)
+	}
+	if strings.Contains(out.String(), `"ok": true`) || strings.Contains(out.String(), `"ok":true`) {
+		t.Fatalf("unexpected success envelope on error path: %s", out.String())
+	}
 }
 
 func TestHandleResponse_BinaryAutoSave(t *testing.T) {
@@ -325,6 +372,76 @@ func TestHandleResponse_NonJSONError_502(t *testing.T) {
 	}
 }
 
+// TestHandleResponse_JSONErrorWithZeroBodyCodeNotSwallowed pins that an HTTP
+// status error whose JSON body omits a non-zero business code (e.g. 400 +
+// {"code":0,...}) still surfaces a typed error. CheckResponse treats code 0 as
+// success, so without the HTTP-status fallback a 4xx would be served as a
+// successful result and exit 0.
+func TestHandleResponse_JSONErrorWithZeroBodyCodeNotSwallowed(t *testing.T) {
+	resp := newApiRespWithStatus(400, []byte(`{"code":0,"msg":"bad request"}`),
+		map[string]string{"Content-Type": "application/json"})
+
+	var out, errOut bytes.Buffer
+	err := HandleResponse(resp, ResponseOptions{Out: &out, ErrOut: &errOut, FileIO: &localfileio.LocalFileIO{}})
+	if err == nil {
+		t.Fatalf("HTTP 400 with code:0 body must not be swallowed; got out=%q err=nil", out.String())
+	}
+	var apiErr *errs.APIError
+	if !errors.As(err, &apiErr) {
+		t.Errorf("expected *errs.APIError, got %T", err)
+	}
+	if !strings.Contains(err.Error(), "HTTP 400") {
+		t.Errorf("expected 'HTTP 400' in error, got: %s", err.Error())
+	}
+	if output.ExitCodeOf(err) != output.ExitAPI {
+		t.Errorf("expected ExitAPI (%d), got %d", output.ExitAPI, output.ExitCodeOf(err))
+	}
+}
+
+// TestHandleResponse_NoContentTypeError_404 pins that a 404 with an empty body
+// and no Content-Type header — which falls into the JSON branch and fails to
+// parse — is classified by HTTP status (api/not_found), not reported as an
+// internal decode failure.
+func TestHandleResponse_NoContentTypeError_404(t *testing.T) {
+	resp := newApiRespWithStatus(404, []byte(""), nil)
+
+	var out, errOut bytes.Buffer
+	err := HandleResponse(resp, ResponseOptions{Out: &out, ErrOut: &errOut, FileIO: &localfileio.LocalFileIO{}})
+	if err == nil {
+		t.Fatal("expected error for 404 with empty body and no Content-Type")
+	}
+	var apiErr *errs.APIError
+	if !errors.As(err, &apiErr) {
+		t.Errorf("expected *errs.APIError, got %T", err)
+	}
+	if apiErr != nil && apiErr.Subtype != errs.SubtypeNotFound {
+		t.Errorf("subtype = %q, want not_found", apiErr.Subtype)
+	}
+	if output.ExitCodeOf(err) != output.ExitAPI {
+		t.Errorf("expected ExitAPI (%d), got %d", output.ExitAPI, output.ExitCodeOf(err))
+	}
+}
+
+// TestHandleResponse_NoContentTypeError_502 pins that a 5xx with a non-JSON
+// body and no Content-Type is classified as a NetworkError by status, not an
+// internal decode failure.
+func TestHandleResponse_NoContentTypeError_502(t *testing.T) {
+	resp := newApiRespWithStatus(502, []byte("<html>Bad Gateway</html>"), nil)
+
+	var out, errOut bytes.Buffer
+	err := HandleResponse(resp, ResponseOptions{Out: &out, ErrOut: &errOut, FileIO: &localfileio.LocalFileIO{}})
+	if err == nil {
+		t.Fatal("expected error for 502 with non-JSON body and no Content-Type")
+	}
+	var netErr *errs.NetworkError
+	if !errors.As(err, &netErr) {
+		t.Errorf("expected *errs.NetworkError, got %T", err)
+	}
+	if output.ExitCodeOf(err) != output.ExitNetwork {
+		t.Errorf("expected ExitNetwork (%d) for 5xx, got %d", output.ExitNetwork, output.ExitCodeOf(err))
+	}
+}
+
 func TestHandleResponse_200TextPlain_SavesFile(t *testing.T) {
 	dir := t.TempDir()
 	origWd, _ := os.Getwd()

internal/cmdmeta/meta.go

@@ -34,10 +34,24 @@ import (
 	"github.com/larksuite/cli/internal/cmdutil"
 )
 
-// domainAnnotationKey is the cobra Annotation key for the business domain.
-// Kept distinct from cmdutil.* keys so this package can evolve without
-// disturbing existing readers.
-const domainAnnotationKey = "cmdmeta.domain"
+// Source identifies how a command entered the repository-owned command tree.
+type Source string
+
+const (
+	SourceBuiltin  Source = "builtin"
+	SourceShortcut Source = "shortcut"
+	SourceService  Source = "service"
+)
+
+const (
+	// domainAnnotationKey is the cobra Annotation key for the business domain.
+	// Kept distinct from cmdutil.* keys so this package can evolve without
+	// disturbing existing readers.
+	domainAnnotationKey = "cmdmeta.domain"
+
+	sourceAnnotationKey    = "cmdmeta.source"
+	generatedAnnotationKey = "cmdmeta.generated"
+)
 
 // Meta groups the three command-level metadata axes consumed by the policy
 // engine and hook selectors.
@@ -93,6 +107,24 @@ func SetDomain(cmd *cobra.Command, domain string) {
 	cmd.Annotations[domainAnnotationKey] = domain
 }
 
+// SetSource stores the command source on a single command. The generated flag
+// is written explicitly so child commands can opt out of inherited service
+// metadata.
+func SetSource(cmd *cobra.Command, source Source, generated bool) {
+	if source == "" {
+		return
+	}
+	if cmd.Annotations == nil {
+		cmd.Annotations = map[string]string{}
+	}
+	cmd.Annotations[sourceAnnotationKey] = string(source)
+	if generated {
+		cmd.Annotations[generatedAnnotationKey] = "true"
+	} else {
+		cmd.Annotations[generatedAnnotationKey] = "false"
+	}
+}
+
 // Domain returns the nearest-ancestor domain for the command. Empty string
 // when no ancestor has the annotation -- this is the "unknown" state the
 // policy engine must treat as ALLOW.
@@ -108,6 +140,33 @@ func Domain(cmd *cobra.Command) string {
 	return ""
 }
 
+// SourceOf returns the nearest-ancestor command source.
+func SourceOf(cmd *cobra.Command) (Source, bool) {
+	for c := cmd; c != nil; c = c.Parent() {
+		if c.Annotations == nil {
+			continue
+		}
+		if v := c.Annotations[sourceAnnotationKey]; v != "" {
+			return Source(v), true
+		}
+	}
+	return "", false
+}
+
+// Generated returns the nearest generated annotation. An explicit false on a
+// child command stops inheritance from a generated parent.
+func Generated(cmd *cobra.Command) bool {
+	for c := cmd; c != nil; c = c.Parent() {
+		if c.Annotations == nil {
+			continue
+		}
+		if v, ok := c.Annotations[generatedAnnotationKey]; ok {
+			return v == "true"
+		}
+	}
+	return false
+}
+
 // Risk returns the nearest-ancestor risk level (via cmdutil.GetRisk).
 // ok=false signals "unknown" -- the policy engine treats this as
 // fail-closed (deny with risk_not_annotated) whenever a Rule without

internal/cmdmeta/meta_test.go

@@ -141,3 +141,19 @@ func TestSetDomain_emptyIsNoop(t *testing.T) {
 		t.Fatalf("Domain(child) = %q, want inherited 'docs'", got)
 	}
 }
+
+func TestSourceGenerated_childFalseStopsParentGeneratedInheritance(t *testing.T) {
+	parent := &cobra.Command{Use: "docs"}
+	child := &cobra.Command{Use: "+fetch"}
+	parent.AddCommand(child)
+
+	cmdmeta.SetSource(parent, cmdmeta.SourceService, true)
+	cmdmeta.SetSource(child, cmdmeta.SourceShortcut, false)
+
+	if source, ok := cmdmeta.SourceOf(child); !ok || source != cmdmeta.SourceShortcut {
+		t.Fatalf("SourceOf(child) = (%q,%v), want (shortcut,true)", source, ok)
+	}
+	if cmdmeta.Generated(child) {
+		t.Fatal("Generated(child) = true, want false")
+	}
+}

internal/cmdpolicy/aggregation_test.go

@@ -4,13 +4,13 @@
 package cmdpolicy_test
 
 import (
-	"encoding/json"
 	"errors"
 	"strings"
 	"testing"
 
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
@@ -168,10 +168,15 @@ func TestBuildDeniedByPath_hybridParentOwnAllowedKeepsAlive(t *testing.T) {
 	}
 }
 
-// Apply with the wrapped *output.ExitError exposes BOTH paths consumers
-// rely on:
-//  1. cmd/root.go's envelope writer (errors.As on *output.ExitError)
-//  2. in-process consumers extracting the platform.CommandDeniedError
+// Apply returns a typed *errs.ValidationError that exposes BOTH paths
+// consumers rely on:
+//  1. cmd/root.go's envelope writer (errs.ProblemOf / failed_precondition
+//     subtype + exit code 2)
+//  2. in-process consumers extracting the platform.CommandDeniedError as
+//     the typed error's Cause via errors.As
+//
+// The policy metadata (layer / policy_source / rule_name / reason_code)
+// is folded into the Hint text rather than a separate detail map.
 func TestApply_runEReturnsExitErrorAndCommandDeniedError(t *testing.T) {
 	root := buildTree()
 	denied := map[string]cmdpolicy.Denial{
@@ -191,31 +196,33 @@ func TestApply_runEReturnsExitErrorAndCommandDeniedError(t *testing.T) {
 		t.Fatalf("denied command should return error")
 	}
 
-	// Path 1: envelope-writer view.
-	var exitErr *output.ExitError
-	if !errors.As(err, &exitErr) {
-		t.Fatalf("error chain must contain *output.ExitError, got %T", err)
+	// Path 1: typed-envelope view. The denial is a failed_precondition
+	// ValidationError so cmd/root.go renders the structured envelope and
+	// the process exits 2 (ExitValidation).
+	var ve *errs.ValidationError
+	if !errors.As(err, &ve) {
+		t.Fatalf("error chain must contain *errs.ValidationError, got %T", err)
 	}
-	if exitErr.Detail == nil {
-		t.Fatalf("ExitError.Detail required for envelope to render")
+	if ve.Subtype != errs.SubtypeFailedPrecondition {
+		t.Errorf("subtype = %q, want %q", ve.Subtype, errs.SubtypeFailedPrecondition)
 	}
-	if exitErr.Detail.Type != "command_denied" {
-		t.Errorf("envelope error.type = %q, want command_denied", exitErr.Detail.Type)
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want ExitValidation (%d)", code, output.ExitValidation)
 	}
-	// JSON envelope shape: detail.reason_code must be present and
-	// match the closed enum.
-	detailMap, ok := exitErr.Detail.Detail.(map[string]any)
-	if !ok {
-		t.Fatalf("envelope detail should be map[string]any, got %T", exitErr.Detail.Detail)
+	// The policy metadata is folded into the Hint text: reason_code,
+	// policy_source, and rule_name must all be discoverable there.
+	if !strings.Contains(ve.Hint, "write_not_allowed") {
+		t.Errorf("hint must carry reason_code write_not_allowed, got %q", ve.Hint)
 	}
-	if detailMap["reason_code"] != "write_not_allowed" {
-		t.Errorf("detail.reason_code = %v, want write_not_allowed", detailMap["reason_code"])
+	if !strings.Contains(ve.Hint, "plugin:secaudit") {
+		t.Errorf("hint must carry policy_source plugin:secaudit, got %q", ve.Hint)
 	}
-	if detailMap["policy_source"] != "plugin:secaudit" {
-		t.Errorf("detail.policy_source = %v, want plugin:secaudit", detailMap["policy_source"])
+	if !strings.Contains(ve.Hint, "secaudit-policy") {
+		t.Errorf("hint must carry rule_name secaudit-policy, got %q", ve.Hint)
 	}
 
-	// Path 2: in-process typed-error view.
+	// Path 2: in-process typed-error view -- the *platform.CommandDeniedError
+	// is preserved as the Cause so errors.As still reaches it.
 	var cd *platform.CommandDeniedError
 	if !errors.As(err, &cd) {
 		t.Fatalf("error chain must expose *platform.CommandDeniedError")
@@ -223,21 +230,6 @@ func TestApply_runEReturnsExitErrorAndCommandDeniedError(t *testing.T) {
 	if cd.Path != "docs/+update" || cd.ReasonCode != "write_not_allowed" {
 		t.Errorf("CommandDeniedError = %+v", cd)
 	}
-
-	// Envelope round-trip sanity (the actual JSON cmd/root.go would emit).
-	var buf strings.Builder
-	output.WriteErrorEnvelope(&buf, exitErr, "user")
-	if !strings.Contains(buf.String(), `"type": "command_denied"`) {
-		t.Errorf("envelope JSON missing type=command_denied, got:\n%s", buf.String())
-	}
-	if !strings.Contains(buf.String(), `"reason_code": "write_not_allowed"`) {
-		t.Errorf("envelope JSON missing reason_code, got:\n%s", buf.String())
-	}
-	// Round-trip parse to verify it's well-formed JSON.
-	var parsed map[string]any
-	if err := json.Unmarshal([]byte(buf.String()), &parsed); err != nil {
-		t.Fatalf("envelope JSON malformed: %v\n%s", err, buf.String())
-	}
 }
 
 // Regression: a pure parent group carrying AnnotationPureGroup must be

internal/cmdpolicy/apply.go

@@ -6,8 +6,8 @@ package cmdpolicy
 import (
 	"github.com/spf13/cobra"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/platform"
-	"github.com/larksuite/cli/internal/output"
 )
 
 // Apply walks the command tree and installs denyStubs for every path in
@@ -24,12 +24,11 @@ import (
 //     cobra would intercept the call
 //     with "missing required flag"
 //     before we can return our error
-//  3. cmd.RunE = denyStub(denial)      -- returns *output.ExitError so
+//  3. cmd.RunE = denyStub(denial)      -- returns a typed
+//     *errs.ValidationError so
 //     cmd/root.go's envelope writer
-//     emits structured JSON (with
-//     error.type = denial.Layer and
-//     detail.reason_code = ReasonCode);
-//     the wrapped error chain still
+//     emits structured JSON; the
+//     wrapped error chain still
 //     exposes *platform.CommandDeniedError
 //     via errors.As for in-process
 //     consumers
@@ -112,42 +111,17 @@ func CommandDeniedFromDenial(path string, d Denial) *platform.CommandDeniedError
 	}
 }
 
-// DenialDetailMap is the canonical detail.* shape every `command_denied`
-// envelope shares (see docs/extension/reason-codes.md). Use it as
-// ErrDetail.Detail when constructing an envelope outside BuildDenialError.
-func DenialDetailMap(cd *platform.CommandDeniedError) map[string]any {
-	return map[string]any{
-		"path":          cd.Path,
-		"layer":         cd.Layer,
-		"policy_source": cd.PolicySource,
-		"rule_name":     cd.RuleName,
-		"reason_code":   cd.ReasonCode,
-		"reason":        cd.Reason,
-	}
-}
-
-// BuildDenialError is the default envelope for user-layer denials:
-// Message comes from CommandDeniedError.Error(), no Hint. Callers that
-// need a custom Message or an independent Hint (strict-mode) should
-// compose CommandDeniedFromDenial + DenialDetailMap themselves.
-//
-// Deprecated: BuildDenialError produces a legacy *output.ExitError that
-// predates the typed error contract introduced by errs/. New code MUST NOT
-// use it — denial signals should move to a typed *errs.XxxError (a dedicated
-// typed Error for policy denial is tracked for the cmdpolicy migration PR).
-// This helper is retained only while existing call sites are migrated; it
-// will be removed once they have moved to the typed surface.
-func BuildDenialError(path string, d Denial) *output.ExitError {
+// BuildDenialError is the default typed error for user-layer denials:
+// Message comes from CommandDeniedError.Error(); the policy layer, source,
+// rule name, and reason code are folded into the Hint. The
+// *platform.CommandDeniedError is preserved as the Cause so errors.As
+// works for in-process consumers.
+func BuildDenialError(path string, d Denial) *errs.ValidationError {
 	cd := CommandDeniedFromDenial(path, d)
-	return &output.ExitError{
-		Code: output.ExitValidation,
-		Detail: &output.ErrDetail{
-			Type:    "command_denied",
-			Message: cd.Error(),
-			Detail:  DenialDetailMap(cd),
-		},
-		Err: cd,
-	}
+	return errs.NewValidationError(errs.SubtypeFailedPrecondition, "%s", cd.Error()).
+		WithHint("denied by %s policy (source %s, rule %q, reason_code %s); adjust the policy configuration to allow this command",
+			cd.Layer, cd.PolicySource, cd.RuleName, cd.ReasonCode).
+		WithCause(cd)
 }
 
 // installDenyStub mutates a cobra.Command in place. Unlike cmd/prune.go
@@ -221,9 +195,9 @@ func installDenyStub(cmd *cobra.Command, path string, d Denial) bool {
 
 	denial := d // capture by value for the closure
 	cmd.RunE = func(c *cobra.Command, args []string) error {
-		// error.type is the user-facing semantic ("a command was denied by
-		// policy"). detail.layer carries the implementation distinction
-		// ("policy" vs "strict_mode") for debugging.
+		// The typed message carries the user-facing semantic ("a command
+		// was denied"); the hint carries the layer / source / rule
+		// distinction ("policy" vs "strict_mode") for debugging.
 		return BuildDenialError(path, denial)
 	}
 	// Clear any pre-existing Run hook: cobra prefers RunE when both are

internal/cmdpolicy/engine.go

@@ -9,9 +9,9 @@
 // aggregation), which the Apply step consumes to install denyStubs.
 //
 // This package only implements the user-layer half. Strict-mode is handled
-// by cmd/prune.go, which produces command_denied envelopes of the same
-// shape via BuildDenialError so external agents can dispatch on
-// detail.layer / reason_code uniformly regardless of which layer rejected
+// by cmd/prune.go, which produces typed validation errors of the same shape
+// (failed_precondition, *platform.CommandDeniedError preserved as Cause) so
+// external agents see a uniform envelope regardless of which layer rejected
 // the call.
 package cmdpolicy