feat(config): bind OpenClaw keyless credentials

* test(e2e): declare request identities explicitly

* test(e2e): skip base workflow without bot credentials

.github/workflows/ci.yml

@@ -1,4 +1,5 @@
 name: CI
+run-name: ${{ github.event_name == 'pull_request' && format('CI / {0}', github.event.pull_request.number) || '' }}
 
 on:
   push:
@@ -8,6 +9,12 @@ on:
     types: [opened, synchronize, reopened, edited]
   workflow_dispatch:
 
+# PR metadata edits can retrigger full CI for the same head. Keep only the
+# newest run for a pull request; push and manual runs use a unique run ID.
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.run_id }}
+  cancel-in-progress: ${{ github.event_name == 'pull_request' }}
+
 permissions:
   contents: read
   actions: read
@@ -47,6 +54,34 @@ jobs:
             exit 1
           fi
 
+  plugin-integration:
+    needs: fast-gate
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        with:
+          persist-credentials: false
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
+        with:
+          go-version-file: go.mod
+      # No fetch_meta: the git-archive clean tree must embed only the
+      # committed meta_data stub (reproduces the bare-module customer state).
+      - name: Run plugin-integration L4 tests
+        run: go test -count=1 -timeout=15m ./tests/plugin_e2e/...
+
+  sidecar-integration:
+    needs: fast-gate
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
+        with:
+          persist-credentials: false
+      - uses: actions/setup-go@4a3601121dd01d1626a1e23e37211e3254c1c06c # v6
+        with:
+          go-version-file: go.mod
+      - name: Run sidecar tag build + HMAC round-trip
+        run: make sidecar-test
+
   # ── Layer 2: Quality Gate ──────────────────────────────────────────
   unit-test:
     needs: fast-gate
@@ -86,8 +121,10 @@ jobs:
         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="$QUALITY_GATE_CHANGED_FROM"
-      - name: Run errs/ lint guards (lintcheck)
+      - name: Run source-contract lint guards (lintcheck)
         run: go run -C lint . --changed-from "$QUALITY_GATE_CHANGED_FROM" ..
+      - name: Run lint module tests
+        run: go test -C lint ./... -count=1
 
   script-test:
     needs: fast-gate
@@ -174,7 +211,11 @@ jobs:
         run: python3 scripts/fetch_meta.py
       - name: Run tests with coverage
         run: |
-          packages=$(go list ./... | grep -v '^github.com/larksuite/cli/tests/cli_e2e$' | grep -v '^github.com/larksuite/cli/tests/cli_e2e/')
+          # tests/ holds only L3/L4 suites (cli_e2e, plugin_e2e, sidecar_e2e) that
+          # have dedicated jobs; exclude the whole subtree so none of them runs a
+          # second time here — and, crucially, so an observe-only suite's failure
+          # can never block merges through coverage's spot in the results loop.
+          packages=$(go list ./... | grep -v '^github.com/larksuite/cli/tests/')
           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 }}
@@ -261,6 +302,11 @@ jobs:
   e2e-dry-run:
     needs: [unit-test, lint, script-test, deterministic-gate]
     runs-on: ubuntu-latest
+    timeout-minutes: 20
+    outputs:
+      mode: ${{ steps.e2e_domains.outputs.mode }}
+      reason: ${{ steps.e2e_domains.outputs.reason }}
+      live_packages: ${{ steps.e2e_domains.outputs.live_packages }}
     steps:
       - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
         with:
@@ -274,6 +320,23 @@ jobs:
       - name: Resolve CLI E2E domains
         id: e2e_domains
         run: node scripts/e2e_domains.js
+      - name: Validate CLI E2E domain outputs
+        env:
+          E2E_MODE: ${{ steps.e2e_domains.outputs.mode }}
+          E2E_LIVE_PACKAGES: ${{ steps.e2e_domains.outputs.live_packages }}
+        run: |
+          case "$E2E_MODE" in
+            skip)
+              [ -z "$E2E_LIVE_PACKAGES" ] || { echo "::error::Skip mode must not resolve live packages"; exit 1; }
+              ;;
+            full|subset)
+              [ -n "$E2E_LIVE_PACKAGES" ] || { echo "::error::No live packages resolved for mode $E2E_MODE"; exit 1; }
+              ;;
+            *)
+              echo "::error::Invalid CLI E2E mode: $E2E_MODE"
+              exit 1
+              ;;
+          esac
       - name: Build lark-cli
         if: ${{ steps.e2e_domains.outputs.mode != 'skip' }}
         run: make build
@@ -307,16 +370,22 @@ jobs:
           fi
 
   e2e-live:
-    needs: [unit-test, lint, script-test, deterministic-gate]
-    if: ${{ github.event_name != 'pull_request' || !github.event.pull_request.head.repo.fork }}
+    needs: [unit-test, lint, script-test, deterministic-gate, e2e-dry-run]
+    if: ${{ always() && (github.event_name != 'pull_request' || !github.event.pull_request.head.repo.fork) && needs.unit-test.result == 'success' && needs.lint.result == 'success' && needs.script-test.result == 'success' && needs.deterministic-gate.result == 'success' && needs.e2e-dry-run.result == 'success' && (needs.e2e-dry-run.outputs.mode == 'full' || needs.e2e-dry-run.outputs.mode == 'subset') && needs.e2e-dry-run.outputs.live_packages != '' }}
     runs-on: ubuntu-latest
+    timeout-minutes: 30
+    # Live E2E uses one repository-wide execution slot.
+    concurrency:
+      group: lark-cli-e2e-live
+      cancel-in-progress: false
+      queue: max
     permissions:
+      actions: read
       contents: read
       checks: write
     env:
       TEST_BOT1_APP_ID: ${{ secrets.TEST_BOT1_APP_ID }}
-      TEST_BOT1_APP_SECRET: ${{ secrets.TEST_BOT1_APP_SECRET }}
-      TEST_USER_ACCESS_TOKEN: ${{ secrets.TEST_USER_ACCESS_TOKEN }}
+      LARKSUITE_CLI_BRAND: feishu
     steps:
       - uses: actions/checkout@93cb6efe18208431cddfb8368fd83d5badbf9bfd # v5
         with:
@@ -327,31 +396,68 @@ jobs:
       - uses: actions/setup-python@a309ff8b426b58ec0e2a45f0f869d46889d02405 # v6
         with:
           python-version: '3.x'
-      - name: Resolve CLI E2E domains
-        id: e2e_domains
-        run: node scripts/e2e_domains.js
       - name: Build lark-cli
-        if: ${{ steps.e2e_domains.outputs.mode != 'skip' }}
+        id: build_cli
         run: make build
-      - name: Configure bot credentials
-        if: ${{ steps.e2e_domains.outputs.mode != 'skip' }}
+      - name: Prepare shared live E2E tenant token
+        id: live_e2e_tat
+        env:
+          LARKSUITE_CLI_APP_ID: ${{ secrets.TEST_BOT1_APP_ID }}
+          TEST_BOT1_APP_SECRET: ${{ secrets.TEST_BOT1_APP_SECRET }}
+        run: node scripts/fetch_e2e_tat.js
+      - name: Run CLI E2E tests
+        # Keep an active Go test alive so t.Cleanup can finish. A queued stale
+        # run is rejected below before it can start live E2E.
+        if: ${{ always() && steps.build_cli.outcome == 'success' && steps.live_e2e_tat.outcome == 'success' }}
+        shell: bash
+        env:
+          GH_TOKEN: ${{ github.token }}
+          REPOSITORY: ${{ github.repository }}
+          EVENT_NAME: ${{ github.event_name }}
+          RUN_ID: ${{ github.run_id }}
+          RUN_NUMBER: ${{ github.run_number }}
+          RUN_GENERATION: ${{ github.event_name == 'pull_request' && format('CI / {0}', github.event.pull_request.number) || '' }}
+          LARK_CLI_BIN: ${{ github.workspace }}/lark-cli
+          E2E_MODE: ${{ needs.e2e-dry-run.outputs.mode }}
+          E2E_REASON: ${{ needs.e2e-dry-run.outputs.reason }}
+          E2E_LIVE_PACKAGES: ${{ needs.e2e-dry-run.outputs.live_packages }}
+          E2E_TENANT_AUTH_FILE: ${{ steps.live_e2e_tat.outputs.path }}
+          TEST_USER_ACCESS_TOKEN: ${{ secrets.TEST_USER_ACCESS_TOKEN }}
         run: |
-          if [ -z "$TEST_BOT1_APP_ID" ] || [ -z "$TEST_BOT1_APP_SECRET" ]; then
-            echo "::error::Missing required secrets: TEST_BOT1_APP_ID / TEST_BOT1_APP_SECRET"
+          if [ "$EVENT_NAME" = "pull_request" ]; then
+            workflow_id="$(gh api "repos/$REPOSITORY/actions/runs/$RUN_ID" --jq '.workflow_id')"
+            newer_runs="$(
+              gh api --paginate -X GET "repos/$REPOSITORY/actions/workflows/$workflow_id/runs" \
+                -f event=pull_request -f branch="$GITHUB_HEAD_REF" -f per_page=100 |
+                jq -r --arg repository "$REPOSITORY" --arg generation "$RUN_GENERATION" --argjson run_number "$RUN_NUMBER" \
+                  '.workflow_runs[] | select(.head_repository.full_name == $repository and .display_title == $generation and .run_number > $run_number) | .id'
+            )"
+            if [ -n "$newer_runs" ]; then
+              echo "::error::Superseded before live E2E started by newer workflow run(s): $newer_runs"
+              exit 1
+            fi
+          fi
+          if [ -z "${E2E_TENANT_AUTH_FILE:-}" ] || [ ! -f "$E2E_TENANT_AUTH_FILE" ]; then
+            echo "::error::Missing shared live E2E tenant token file"
             exit 1
           fi
-          printf '%s\n' "$TEST_BOT1_APP_SECRET" | ./lark-cli config init --app-id "$TEST_BOT1_APP_ID" --app-secret-stdin
-      - name: Run CLI E2E tests
-        env:
-          LARK_CLI_BIN: ${{ github.workspace }}/lark-cli
-          E2E_MODE: ${{ steps.e2e_domains.outputs.mode }}
-          E2E_REASON: ${{ steps.e2e_domains.outputs.reason }}
-          E2E_LIVE_PACKAGES: ${{ steps.e2e_domains.outputs.live_packages }}
-        run: |
-          if [ "$E2E_MODE" = "skip" ]; then
-            echo "No live CLI E2E needed: $E2E_REASON"
-            exit 0
+          export TEST_TENANT_ACCESS_TOKEN="$(cat "$E2E_TENANT_AUTH_FILE")"
+          rm -f "$E2E_TENANT_AUTH_FILE"
+          if ! LARKSUITE_CLI_APP_ID="$TEST_BOT1_APP_ID" \
+            LARKSUITE_CLI_TENANT_ACCESS_TOKEN="$TEST_TENANT_ACCESS_TOKEN" \
+            ./lark-cli whoami --as bot | node -e '
+            let input = "";
+            process.stdin.setEncoding("utf8");
+            process.stdin.on("data", (chunk) => { input += chunk; });
+            process.stdin.on("end", () => {
+              const result = JSON.parse(input);
+              if (result.identity !== "bot" || result.available !== true || result.tokenStatus !== "ready") process.exit(1);
+            });
+          '; then
+            echo "::error::Tenant credential preflight failed"
+            exit 1
           fi
+          echo "Tenant credential preflight succeeded"
           packages="$E2E_LIVE_PACKAGES"
           if [ -z "$packages" ]; then
             echo "::error::No live CLI E2E packages resolved for mode $E2E_MODE"
@@ -361,7 +467,7 @@ jobs:
           echo "Live CLI E2E packages: $packages"
           go run gotest.tools/gotestsum@v1.12.3 --rerun-fails=2 --rerun-fails-max-failures=20 --packages="$packages" --format testname --junitfile cli-e2e-report.xml -- -count=1 -v
       - name: Publish CLI E2E test report
-        if: ${{ !cancelled() && steps.e2e_domains.outputs.mode != 'skip' }}
+        if: ${{ !cancelled() }}
         uses: dorny/test-reporter@a43b3a5f7366b97d083190328d2c652e1a8b6aa2 # v3.0.0
         with:
           name: CLI E2E Tests
@@ -414,7 +520,7 @@ jobs:
   # ── Results Gate (single required check for branch protection) ─────
   results:
     if: ${{ always() }}
-    needs: [fast-gate, unit-test, lint, script-test, deterministic-gate, coverage, deadcode, e2e-dry-run, e2e-live, security, license-header]
+    needs: [fast-gate, unit-test, lint, script-test, deterministic-gate, coverage, deadcode, e2e-dry-run, e2e-live, security, license-header, plugin-integration, sidecar-integration]
     runs-on: ubuntu-latest
     steps:
       - name: Evaluate results
@@ -434,10 +540,19 @@ jobs:
           echo "| L3 | e2e-live | ${{ needs.e2e-live.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L4 | security | ${{ needs.security.result }} |" >> $GITHUB_STEP_SUMMARY
           echo "| L4 | license-header | ${{ needs.license-header.result }} |" >> $GITHUB_STEP_SUMMARY
+          echo "| L4 | plugin-integration (observe-only) | ${{ needs.plugin-integration.result }} |" >> $GITHUB_STEP_SUMMARY
+          echo "| L4 | sidecar-integration (observe-only) | ${{ needs.sidecar-integration.result }} |" >> $GITHUB_STEP_SUMMARY
 
           # Any failure or cancellation in any job blocks the merge.
-          # Legitimately skipped jobs (deadcode on push, e2e-live on fork,
-          # license-header on push) are OK.
+          # Legitimately skipped jobs (deadcode on push, e2e-live when not
+          # needed or on a fork, license-header on push) are OK.
+          #
+          # plugin-integration and sidecar-integration are intentionally NOT
+          # in this loop yet: they run on every PR and their status is shown
+          # in the table above, but a failure is observe-only (non-blocking)
+          # during the initial soak. Graduation to required is tracked in
+          # https://github.com/larksuite/cli/issues/1894 (criteria: 4
+          # consecutive weeks with zero false positives).
           FAILED=0
           for result in \
             "${{ needs.fast-gate.result }}" \

.github/workflows/release.yml

@@ -9,7 +9,11 @@ permissions:
   contents: read
 
 jobs:
+  # All platforms (incl. darwin keychain_signer) are CGO-free and cross-compiled
+  # on a single ubuntu runner in one goreleaser run (one checksums.txt). The
+  # darwin signer's runtime FFI is validated separately by the signer-test job.
   goreleaser:
+    needs: signer-test-macos
     runs-on: ubuntu-22.04
     permissions:
       contents: write
@@ -34,6 +38,21 @@ jobs:
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
+  # Validate the macOS keychain signer on real hardware. The release binaries are
+  # cross-compiled on ubuntu (CGO-free purego FFI), so this is the only step that
+  # needs a Mac — and it gates the release rather than producing it.
+  signer-test-macos:
+    runs-on: macos-latest
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+      - uses: actions/setup-go@40f1582b2485089dde7abd97c1529aa768e1baff # v5
+        with:
+          go-version: '1.23'
+      - name: Keychain signer round-trip (CGO-free purego FFI)
+        run: LARK_KEYCHAIN_IT=1 CGO_ENABLED=0 go test -tags keychain_signer -run Keychain -v ./internal/keysigner/
+
   publish-npm:
     needs: goreleaser
     runs-on: ubuntu-22.04

.goreleaser.yml

@@ -5,25 +5,63 @@ before:
     - python3 scripts/fetch_meta.py
 
 builds:
-  - binary: lark-cli
+  # Linux & Windows: pure-Go TPM 2.0 signer is compiled in by default (no build
+  # tag), cross-compiled with CGO disabled — the binaries ship the platform key
+  # signer for private_key_jwt. windows/arm64 is the one exception: the sks
+  # Windows dependency stack (go-ole) has no arm64 support, so the signer file is
+  # arch-excluded there and that binary falls back to client_secret only.
+  - id: linux
+    binary: lark-cli
+    main: .
     env:
       - CGO_ENABLED=0
+    flags:
+      - -trimpath
     ldflags:
       - -s -w -X github.com/larksuite/cli/internal/build.Version={{ .Version }} -X github.com/larksuite/cli/internal/build.Date={{ .Date }}
     goos:
-      - darwin
       - linux
-      - windows
     goarch:
       - amd64
       - arm64
       - riscv64
+  - id: windows
+    binary: lark-cli
+    main: .
+    env:
+      - CGO_ENABLED=0
+    flags:
+      - -trimpath
+    ldflags:
+      - -s -w -X github.com/larksuite/cli/internal/build.Version={{ .Version }} -X github.com/larksuite/cli/internal/build.Date={{ .Date }}
+    goos:
+      - windows
+    goarch:
+      - amd64
+      - arm64
+  # macOS: the keychain signer calls Security.framework via runtime FFI (purego),
+  # so it is CGO-free, compiled into every darwin build (no build tag), and
+  # cross-compiles from the same ubuntu runner as linux/windows.
+  - id: darwin
+    binary: lark-cli
+    main: .
+    env:
+      - CGO_ENABLED=0
+    flags:
+      - -trimpath
+    ldflags:
+      - -s -w -X github.com/larksuite/cli/internal/build.Version={{ .Version }} -X github.com/larksuite/cli/internal/build.Date={{ .Date }}
+    goos:
+      - darwin
+    goarch:
+      - amd64
+      - arm64
 
 archives:
   - name_template: "lark-cli-{{ .Version }}-{{ .Os }}-{{ .Arch }}"
     format_overrides:
       - goos: windows
-        format: zip
+        formats: [zip]
     files:
       - README.md
       - LICENSE

AGENTS.md

@@ -10,9 +10,10 @@
 ## Build & Test
 
 ```bash
-make build          # Build (runs fetch_meta first)
-make unit-test      # Required before PR (runs with -race where supported, e.g. amd64/arm64)
-make test           # Full: vet + unit + integration
+make build             # Build (runs fetch_meta first)
+make unit-test         # Required before PR (runs with -race where supported, e.g. amd64/arm64)
+make live-skills-test  # Opt-in real Skills CLI tests; runs with isolated user directories
+make test              # Full: vet + unit + integration
 ```
 
 ## Notification Opt-Outs
@@ -105,6 +106,20 @@ Signatures that are easy to guess wrong:
 
 Program output (JSON envelopes) goes to stdout. Progress, warnings, hints go to stderr. Mixing them corrupts pipe chains.
 
+### Typed data over loose maps
+
+Parse `map[string]interface{}` into a typed struct at the boundary — one projection function per shape — and let everything downstream consume struct fields, not string keys. A typo'd map key compiles fine and fails at runtime, which an agent then debugs blind.
+
+Use distinct types when two values could be swapped silently: see `internal/meta.Token` — a bare string compiles on either side of a string/string signature, a distinct type does not.
+
+Legacy loose-map code exists in older paths. Match its call sites when touching it, but do not copy the pattern into new code.
+
+### Transcribe faithfully — no silent fallbacks
+
+When code echoes input onward (request previews, transformations, proxies), transcribe verbatim. A `default:` branch that coerces unrecognized input into a plausible value ("unknown HTTP verb → GET") makes the output lie, and an agent reasons from the lie.
+
+The same rule applies to flag combinations and internal wiring: if a requested option cannot be honored, return a typed validation error — never silently substitute another behavior and exit 0. Silent guesses (defaulting a missing identity, discarding writes on a nil writer) are bugs even when every current caller happens to avoid them.
+
 ### Use `vfs.*` instead of `os.*`
 
 All filesystem access goes through `internal/vfs`. This enables test mocking.
@@ -116,6 +131,7 @@ CLI arguments are untrusted (they come from AI agents). Call `validate.SafeInput
 ### Tests
 
 - Every behavior change needs a test alongside the change.
+- A contract test must fail if the implementation is reverted. If you can undo the code change and the suite stays green, the contract is not pinned — assert the new field/behavior directly, not a happy-path substring.
 - `cmdutil.TestFactory(t, config)` for test factories.
 - `t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())` to isolate config state.
 

CHANGELOG.md

@@ -2,6 +2,193 @@
 
 All notable changes to this project will be documented in this file.
 
+## [v1.0.74] - 2026-07-21
+
+### Features
+
+- **slides**: add history rollback shortcuts (#1714)
+- **base**: support per-record batch updates (#1889)
+
+### Bug Fixes
+
+- preserve slides schema issues
+- allow jq examples in quality gate dry-runs
+- **im**: warn when flag pagination is truncated (#1906)
+- **slides**: warn on text shape overflow
+- **slides**: exempt chart roundtrip attributes from lint
+- **slides**: detect image text occlusion
+- **slides**: clarify xml-text-overlap-lint error for positional argument (#1986)
+
+### Documentation
+
+- clarify drive upload overwrite guidance (#1982)
+
+### Tests
+
+- isolate unit tests from user state (#1883)
+
+### Refactoring
+
+- converge success output through a single Emitter that owns the write (#1899)
+
+## [v1.0.73] - 2026-07-20
+
+### Features
+
+- **apps**: design_html support, creative-design skill, unified TOS publish (#1901)
+
+### Bug Fixes
+
+- **slides**: detect visual elements outside canvas
+- reduce public content credential fixture false positives
+- standardize CLI shortcut text in English (#1942)
+
+### Documentation
+
+- **base**: reduce filter and update retry loops (#1879)
+- **vc**: default transcript routing to smart notes over minutes (#1961)
+- clarify local trigger automation (#1958)
+
+### Tests
+
+- synchronize temporary Git maintenance (#1946)
+
+### Misc
+
+- **slides**: update lark-slides skill to 0715 snapshot (#1933)
+- [codex] support bot menu events (#1765)
+
+## [v1.0.72] - 2026-07-17
+
+### Features
+
+- **slides**: lint table out of canvas
+- **slides**: report resolved table size mismatches
+- **approval**: support approval event consumption (#1924)
+
+### Bug Fixes
+
+- **vc**: don't fail +detail for in-progress meetings (#1930)
+- stabilize drive delete E2E terminal-state checks (#1939)
+
+### Documentation
+
+- **slides**: document table dimensions
+- document base field default values (#1500)
+- **sheets**: use English placeholder in table-get guidance (#1936)
+
+### Tests
+
+- stabilize live e2e auth retries (#1904)
+- use tri-state wiki node identity in delete verification (#1931)
+- fix drive cover download retries (#1934)
+
+## [v1.0.71] - 2026-07-16
+
+### Features
+
+- add wiki move-to-drive shortcut (#1869)
+- **apps**: add role management shortcuts (#1881)
+- **drive**: add secure label support and clarify comment location API (#1913)
+
+### Bug Fixes
+
+- **base**: improve dashboard shortcut guidance (#1787)
+
+### Documentation
+
+- **apps**: add platform SQL authoring guide to the db-execute skill (#1912)
+
+### Misc
+
+- add L4 plugin-integration and sidecar-integration CI jobs (#1840)
+- **drive**: optimize drive +delete workflow (#1909)
+
+## [v1.0.70] - 2026-07-15
+
+### Features
+
+- add minutes permission application shortcut (#1876)
+- **drive**: support apps in list comments (#1877)
+- slide style
+- edit ppt template
+- **slides**: add sxsd validation to slides lint
+- **slides**: validate iconpark icon types in slides lint
+- **slides**: lint before create
+- **apps**: add automation trigger commands for Miaoda (#1886)
+
+### Bug Fixes
+
+- unify dry-run output contract (#1870)
+- **skills**: align skill guidance with the typed error contract (#1786)
+- **slides**: limit slides screenshot page requests
+- **slides**: detect lark slides text overflow overlap
+- **vc**: align meeting query scopes by identity (#1850)
+
+### Documentation
+
+- clarify task search relevance filters (#1884)
+- surface minutes permission application in skill description (#1890)
+- clarify okr progress children (#1861)
+- **slides**: prefer slides xml-get shortcut
+- **calendar**: document setting meeting owner via full API (#1903)
+
+### Refactoring
+
+- **slides**: streamline create workflow and validate SML namespaces
+
+### Misc
+
+- **slides**: address PR review feedback
+
+## [v1.0.69] - 2026-07-13
+
+### Features
+
+- support docs fetch selection anchors (#1815)
+- **apps**: support modern_html app type with TOS publish path and app type querying
+- **im**: show bot sender display names when reading messages (#1829)
+- add drive list comments shortcut (#1845)
+- support wiki sources in drive export (#1802)
+- add application domain with slash command management shortcuts (#1806)
+- validate IM idempotency key length (#1797)
+- surface reply context and mentions in im.message.receive_v1 (#1798)
+
+### Bug Fixes
+
+- route brand-sensitive endpoints through the resolver (#1836)
+
+### Documentation
+
+- document OKR block XML guidance (#1648)
+- refine doubao whiteboard workflow routing (#1841)
+- clarify Mindnote token handling (#1827)
+
+### Tests
+
+- isolate semantic waiver fixtures from wall clock
+
+### Misc
+
+- Merge lark sheets development branch (#1833)
+
+## [v1.0.68] - 2026-07-09
+
+### Features
+
+- **drive**: Strengthen lark-drive high-risk write operations and read-only recognition boundaries. (#1801)
+- **slides**: add slides chart demo reference
+
+### Bug Fixes
+
+- register and consume --json shorthand for custom-format shortcuts (#1737)
+- **drive**: abort push on parent sibling limit (#1813)
+
+### Documentation
+
+- require native charts in slide planning
+- register knowledge organize workflow (#1828)
+
 ## [v1.0.67] - 2026-07-08
 
 ### Features
@@ -1421,6 +1608,13 @@ Bundled AI agent skills for intelligent assistance:
 - Bilingual documentation (English & Chinese).
 - CI/CD pipelines: linting, testing, coverage reporting, and automated releases.
 
+[v1.0.74]: https://github.com/larksuite/cli/releases/tag/v1.0.74
+[v1.0.73]: https://github.com/larksuite/cli/releases/tag/v1.0.73
+[v1.0.72]: https://github.com/larksuite/cli/releases/tag/v1.0.72
+[v1.0.71]: https://github.com/larksuite/cli/releases/tag/v1.0.71
+[v1.0.70]: https://github.com/larksuite/cli/releases/tag/v1.0.70
+[v1.0.69]: https://github.com/larksuite/cli/releases/tag/v1.0.69
+[v1.0.68]: https://github.com/larksuite/cli/releases/tag/v1.0.68
 [v1.0.67]: https://github.com/larksuite/cli/releases/tag/v1.0.67
 [v1.0.66]: https://github.com/larksuite/cli/releases/tag/v1.0.66
 [v1.0.65]: https://github.com/larksuite/cli/releases/tag/v1.0.65

Makefile

@@ -23,7 +23,7 @@ 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 script-test test unit-test integration-test examples-build quality-gate install uninstall clean fetch_meta gitleaks
+.PHONY: all build vet fmt-check script-test test unit-test live-skills-test integration-test examples-build quality-gate install uninstall clean fetch_meta gitleaks sidecar-test
 
 all: test
 
@@ -51,19 +51,27 @@ 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/e2e_domains.test.js 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
+	$(NODE) --test scripts/e2e_domains.test.js scripts/fetch_e2e_tat.test.js 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 \
 		./cmd/... ./internal/... ./shortcuts/... ./extension/...
 
+live-skills-test: fetch_meta
+	LARKSUITE_CLI_RUN_LIVE_SKILLS_TESTS=1 \
+	go test -v -count=1 ./cmd/update \
+		-run '^TestUpdateCommand_(RealSkillsSyncRewritesState|SkillsSyncColdStart)$$'
+
 # examples-build keeps the shipped plugin-SDK examples compilable. If this
 # breaks, the plugin author guide's "go build ./..." path is broken.
 examples-build:
 	go build ./extension/platform/examples/audit-observer
 	go build ./extension/platform/examples/readonly-policy
 
+# ./tests/... includes tests/plugin_e2e, which builds ~20 customer-fork
+# binaries (~1 min warm; a cold module cache also downloads via GOPROXY).
+# Deliberate: local `make test` exercises the L4 plugin contract by default.
 integration-test: build
 	go test -v -count=1 ./tests/...
 
@@ -105,6 +113,14 @@ uninstall:
 clean:
 	rm -f $(BINARY)
 
+# sidecar-test compiles and runs the authsidecar* build-tagged code that the
+# default CI matrix never sees (they carry //go:build tags).
+sidecar-test:
+	go build -tags authsidecar -o /dev/null .
+	go test $(RACE_FLAG) -count=1 -tags authsidecar ./extension/credential/sidecar/ ./extension/transport/sidecar/ ./internal/cmdutil/
+	go test $(RACE_FLAG) -count=1 -tags authsidecar_demo ./sidecar/server-demo/
+	go test $(RACE_FLAG) -count=1 -tags authsidecar ./tests/sidecar_e2e/
+
 # Run secret-leak checks locally before pushing.
 # Step 1: check-doc-tokens catches realistic-looking example tokens in reference
 #         docs and asks you to use _EXAMPLE_TOKEN placeholders instead.

cmd/api/api.go

@@ -130,6 +130,13 @@ func buildAPIRequest(opts *APIOptions) (client.RawApiRequest, *cmdutil.FileUploa
 	stdin := opts.Factory.IOStreams.In
 	fileIO := opts.Factory.ResolveFileIO(opts.Ctx)
 
+	if opts.Method == "" {
+		return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"HTTP method must not be empty").
+			WithHint("pass the verb as the first argument, e.g. lark-cli api GET /open-apis/...").
+			WithParam("<method>")
+	}
+
 	// Validate --file mutual exclusions first.
 	if err := cmdutil.ValidateFileFlag(opts.File, opts.Params, opts.Data, opts.Output, opts.PageAll, opts.Method); err != nil {
 		return client.RawApiRequest{}, nil, err
@@ -243,9 +250,9 @@ func apiRun(opts *APIOptions) error {
 
 	if opts.DryRun {
 		if fileMeta != nil {
-			return cmdutil.PrintDryRunWithFile(f.IOStreams.Out, request, config, opts.Format, fileMeta.FieldName, fileMeta.FilePath, fileMeta.FormFields)
+			return cmdutil.PrintDryRunWithFile(request, config, dryRunOutputOptions(f, opts), *fileMeta)
 		}
-		return apiDryRun(f, request, config, opts.Format)
+		return apiDryRun(f, request, config, opts)
 	}
 	// Identity info is now included in the JSON envelope; skip stderr printing.
 	// cmdutil.PrintIdentity(f.IOStreams.ErrOut, opts.As, config, f.IdentityAutoDetected)
@@ -297,8 +304,19 @@ func apiRun(opts *APIOptions) error {
 	return nil
 }
 
-func apiDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, format string) error {
-	return cmdutil.PrintDryRun(f.IOStreams.Out, request, config, format)
+func apiDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, opts *APIOptions) error {
+	return cmdutil.PrintDryRun(request, config, dryRunOutputOptions(f, opts))
+}
+
+func dryRunOutputOptions(f *cmdutil.Factory, opts *APIOptions) cmdutil.DryRunOutputOptions {
+	return cmdutil.DryRunOutputOptions{
+		Format:      opts.Format,
+		JqExpr:      opts.JqExpr,
+		CommandPath: opts.Cmd.CommandPath(),
+		Identity:    opts.As,
+		Out:         f.IOStreams.Out,
+		ErrOut:      f.IOStreams.ErrOut,
+	}
 }
 
 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 {
@@ -326,20 +344,18 @@ func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawAp
 
 	switch format {
 	case output.FormatNDJSON, output.FormatTable, output.FormatCSV:
-		pf := output.NewPaginatedFormatter(out, format)
+		emitter := output.NewEmitter(output.EmitterConfig{
+			Out:            out,
+			ErrOut:         errOut,
+			CommandPath:    commandPath,
+			Identity:       string(pagOpts.Identity),
+			NoticeProvider: output.GetNotice,
+		})
 		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
+			return emitter.StreamPage(items, output.StreamOptions{Format: format.String()})
 		}, pagOpts)
 		if err != nil {
 			return errs.MarkRaw(err)

cmd/api/api_paginate_test.go

@@ -0,0 +1,396 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package api
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/client"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/internal/output"
+)
+
+type apiFailOnWriteWriter struct {
+	buf    bytes.Buffer
+	writes int
+	failAt int
+	err    error
+}
+
+func (w *apiFailOnWriteWriter) Write(p []byte) (int, error) {
+	w.writes++
+	if w.writes == w.failAt {
+		return 0, w.err
+	}
+	return w.buf.Write(p)
+}
+
+func newAPIPaginateTestHarness(t *testing.T) (*client.APIClient, *bytes.Buffer, *bytes.Buffer, *httpmock.Registry) {
+	t.Helper()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "off")
+	previousNotice := output.PendingNotice
+	output.PendingNotice = nil
+	t.Cleanup(func() { output.PendingNotice = previousNotice })
+
+	config := &core.CliConfig{
+		AppID:     "test-app",
+		AppSecret: "test-secret",
+		Brand:     core.BrandFeishu,
+	}
+	f, out, errOut, reg := cmdutil.TestFactory(t, config)
+	ac, err := f.NewAPIClientWithConfig(config)
+	if err != nil {
+		t.Fatalf("NewAPIClientWithConfig() error = %v", err)
+	}
+	ac.ErrOut = io.Discard
+	return ac, out, errOut, reg
+}
+
+func apiPaginateRequest() client.RawApiRequest {
+	return client.RawApiRequest{
+		Method: "GET",
+		URL:    "/open-apis/test/v1/items",
+		As:     core.AsBot,
+	}
+}
+
+func assertAPIPaginateJSONBytes(t *testing.T, got []byte, want interface{}) {
+	t.Helper()
+	wantBytes, err := json.MarshalIndent(want, "", "  ")
+	if err != nil {
+		t.Fatalf("marshal expected JSON: %v", err)
+	}
+	wantBytes = append(wantBytes, '\n')
+	if !bytes.Equal(got, wantBytes) {
+		t.Fatalf("stdout bytes mismatch\ngot:\n%s\nwant:\n%s", got, wantBytes)
+	}
+}
+
+func TestAPIPaginate_DefaultAggregatesAllPages(t *testing.T) {
+	ac, out, errOut, reg := newAPIPaginateTestHarness(t)
+	calls := 0
+	wantTokens := []string{"", "next-1", "next-2"}
+	for i, wantToken := range wantTokens {
+		page := i + 1
+		hasMore := page < len(wantTokens)
+		data := map[string]interface{}{
+			"items":    []interface{}{map[string]interface{}{"id": string(rune('0' + page))}},
+			"has_more": hasMore,
+		}
+		if hasMore {
+			data["page_token"] = wantTokens[page]
+		}
+		reg.Register(&httpmock.Stub{
+			URL: "/open-apis/test/v1/items",
+			OnMatch: func(req *http.Request) {
+				calls++
+				if got := req.URL.Query().Get("page_token"); got != wantToken {
+					t.Errorf("request %d page_token = %q, want %q", page, got, wantToken)
+				}
+			},
+			Body: map[string]interface{}{
+				"code": 0,
+				"msg":  "ok",
+				"data": data,
+			},
+		})
+	}
+
+	err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+		output.FormatJSON, "", out, errOut, "lark-cli api GET", client.PaginationOptions{
+			PageLimit: 10,
+			PageDelay: -1,
+		})
+
+	if err != nil {
+		t.Fatalf("apiPaginate() error = %v, want nil", err)
+	}
+	if calls != 3 {
+		t.Fatalf("pagination requests = %d, want 3", calls)
+	}
+	assertAPIPaginateJSONBytes(t, out.Bytes(), output.Envelope{
+		OK:       true,
+		Identity: "bot",
+		Data: map[string]interface{}{
+			"items": []interface{}{
+				map[string]interface{}{"id": "1"},
+				map[string]interface{}{"id": "2"},
+				map[string]interface{}{"id": "3"},
+			},
+			"has_more": false,
+		},
+	})
+	if got := errOut.String(); got != "" {
+		t.Fatalf("stderr bytes = %q, want empty", got)
+	}
+}
+
+func TestAPIPaginate_StreamingFormatsEmitExactMultiPageBytes(t *testing.T) {
+	tests := []struct {
+		name   string
+		format output.Format
+		want   string
+	}{
+		{
+			name:   "ndjson",
+			format: output.FormatNDJSON,
+			want:   "{\"id\":\"1\",\"name\":\"Alice\"}\n{\"id\":\"2\",\"name\":\"Carol\",\"page_only\":\"ignored\"}\n",
+		},
+		{
+			name:   "table",
+			format: output.FormatTable,
+			want:   "id  name \n──  ─────\n1   Alice\n2   Carol\n",
+		},
+		{
+			name:   "csv",
+			format: output.FormatCSV,
+			want:   "id,name\n1,Alice\n2,Carol\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ac, out, errOut, reg := newAPIPaginateTestHarness(t)
+			reg.Register(&httpmock.Stub{
+				URL: "/open-apis/test/v1/items",
+				Body: map[string]interface{}{
+					"code": 0,
+					"msg":  "ok",
+					"data": map[string]interface{}{
+						"items": []interface{}{
+							map[string]interface{}{"id": "1", "name": "Alice"},
+						},
+						"has_more":   true,
+						"page_token": "next-1",
+					},
+				},
+			})
+			reg.Register(&httpmock.Stub{
+				URL: "/open-apis/test/v1/items",
+				Body: map[string]interface{}{
+					"code": 0,
+					"msg":  "ok",
+					"data": map[string]interface{}{
+						"items": []interface{}{
+							map[string]interface{}{"id": "2", "name": "Carol", "page_only": "ignored"},
+						},
+						"has_more": false,
+					},
+				},
+			})
+
+			err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+				tt.format, "", out, errOut, "lark-cli api GET", client.PaginationOptions{
+					PageLimit: 10,
+					PageDelay: -1,
+				})
+
+			if err != nil {
+				t.Fatalf("apiPaginate() error = %v, want nil", err)
+			}
+			if got := out.String(); got != tt.want {
+				t.Fatalf("stdout byte mismatch\ngot (%d bytes):\n%q\nwant (%d bytes):\n%q", len(got), got, len(tt.want), tt.want)
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+		})
+	}
+}
+
+func TestAPIPaginate_StreamingWriteFailureStopsFurtherPages(t *testing.T) {
+	ac, _, errOut, reg := newAPIPaginateTestHarness(t)
+	sentinel := errors.New("page write failed")
+	out := &apiFailOnWriteWriter{failAt: 2, err: sentinel}
+	calls := 0
+	for page := 1; page <= 2; page++ {
+		hasMore := true
+		data := map[string]interface{}{
+			"items":    []interface{}{map[string]interface{}{"id": page}},
+			"has_more": hasMore,
+		}
+		if hasMore {
+			data["page_token"] = fmt.Sprintf("next-%d", page)
+		}
+		reg.Register(&httpmock.Stub{
+			URL: "/open-apis/test/v1/items",
+			OnMatch: func(*http.Request) {
+				calls++
+			},
+			Body: map[string]interface{}{
+				"code": 0,
+				"msg":  "ok",
+				"data": data,
+			},
+		})
+	}
+
+	err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+		output.FormatNDJSON, "", out, errOut, "lark-cli api GET",
+		client.PaginationOptions{PageLimit: 10, PageDelay: -1})
+
+	if !errors.Is(err, sentinel) {
+		t.Fatalf("apiPaginate() error = %v, want preserved writer cause", err)
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok || problem.Category != errs.CategoryInternal {
+		t.Fatalf("apiPaginate() problem = %#v, %v; want internal typed error", problem, ok)
+	}
+	if calls != 2 {
+		t.Fatalf("pagination requests = %d, want 2", calls)
+	}
+	if got, want := out.buf.String(), "{\"id\":1}\n"; got != want {
+		t.Fatalf("stdout bytes = %q, want %q", got, want)
+	}
+}
+
+func TestAPIPaginate_StreamingFormatFallsBackToJSONWithoutList(t *testing.T) {
+	ac, out, errOut, reg := newAPIPaginateTestHarness(t)
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/test/v1/items",
+		Body: map[string]interface{}{
+			"code": 0,
+			"msg":  "ok",
+			"data": map[string]interface{}{
+				"name":    "Test User",
+				"user_id": "u123",
+			},
+		},
+	})
+
+	err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+		output.FormatNDJSON, "", out, errOut, "lark-cli api GET", client.PaginationOptions{PageDelay: -1})
+
+	if err != nil {
+		t.Fatalf("apiPaginate() error = %v, want nil", err)
+	}
+	assertAPIPaginateJSONBytes(t, out.Bytes(), output.Envelope{
+		OK:       true,
+		Identity: "bot",
+		Data: map[string]interface{}{
+			"name":    "Test User",
+			"user_id": "u123",
+		},
+	})
+	wantWarning := "warning: this API does not return a list, format \"ndjson\" is not supported, falling back to json\n"
+	if got := errOut.String(); got != wantWarning {
+		t.Fatalf("stderr bytes = %q, want %q", got, wantWarning)
+	}
+}
+
+func TestAPIPaginate_BusinessErrorsWriteRawAndAreMarkedRaw(t *testing.T) {
+	businessResponse := map[string]interface{}{
+		"code": 123456,
+		"msg":  "fixture business error",
+		"data": map[string]interface{}{"detail": "business failed"},
+	}
+	tests := []struct {
+		name   string
+		format output.Format
+		jqExpr string
+	}{
+		{name: "jq", format: output.FormatJSON, jqExpr: ".data.items"},
+		{name: "default_json", format: output.FormatJSON},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ac, out, errOut, reg := newAPIPaginateTestHarness(t)
+			reg.Register(&httpmock.Stub{
+				URL:  "/open-apis/test/v1/items",
+				Body: businessResponse,
+			})
+
+			err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+				tt.format, tt.jqExpr, out, errOut, "lark-cli api GET", client.PaginationOptions{PageDelay: -1})
+
+			if err == nil {
+				t.Fatal("apiPaginate() error = nil, want business error")
+			}
+			if !errs.IsRaw(err) {
+				t.Fatalf("errs.IsRaw(error) = false, want true; error = %T: %v", err, err)
+			}
+			assertAPIPaginateJSONBytes(t, out.Bytes(), businessResponse)
+			if bytes.Contains(out.Bytes(), []byte(`"ok": true`)) {
+				t.Fatalf("business-error stdout contains a success envelope:\n%s", out.Bytes())
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+		})
+	}
+}
+
+func TestAPIPaginate_TransportErrorsAreMarkedRaw(t *testing.T) {
+	tests := []struct {
+		name   string
+		format output.Format
+		jqExpr string
+	}{
+		{name: "jq_paginate_all", format: output.FormatJSON, jqExpr: ".data.items"},
+		{name: "stream_pages", format: output.FormatNDJSON},
+		{name: "default_paginate_all", format: output.FormatJSON},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ac, out, errOut, _ := newAPIPaginateTestHarness(t)
+
+			err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+				tt.format, tt.jqExpr, out, errOut, "lark-cli api GET", client.PaginationOptions{PageDelay: -1})
+
+			if err == nil {
+				t.Fatal("apiPaginate() error = nil, want transport error")
+			}
+			if !errs.IsRaw(err) {
+				t.Fatalf("errs.IsRaw(error) = false, want true; error = %T: %v", err, err)
+			}
+			if got := out.String(); got != "" {
+				t.Fatalf("stdout bytes = %q, want empty", got)
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+		})
+	}
+}
+
+func TestAPIPaginate_StreamBusinessErrorIsMarkedRaw(t *testing.T) {
+	ac, out, errOut, reg := newAPIPaginateTestHarness(t)
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/test/v1/items",
+		Body: map[string]interface{}{
+			"code": 123456,
+			"msg":  "fixture business error",
+			"data": map[string]interface{}{},
+		},
+	})
+
+	err := apiPaginate(context.Background(), ac, apiPaginateRequest(),
+		output.FormatNDJSON, "", out, errOut, "lark-cli api GET", client.PaginationOptions{PageDelay: -1})
+
+	if err == nil {
+		t.Fatal("apiPaginate() error = nil, want business error")
+	}
+	if !errs.IsRaw(err) {
+		t.Fatalf("errs.IsRaw(error) = false, want true; error = %T: %v", err, err)
+	}
+	if got := out.String(); got != "" {
+		t.Fatalf("stdout bytes = %q, want empty", got)
+	}
+	if got := errOut.String(); got != "" {
+		t.Fatalf("stderr bytes = %q, want empty", got)
+	}
+}

cmd/api/api_test.go

@@ -69,7 +69,7 @@ func TestApiCmd_FlagParsing(t *testing.T) {
 }
 
 func TestApiCmd_DryRun(t *testing.T) {
-	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+	f, stdout, stderr, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
 	})
 
@@ -79,12 +79,42 @@ func TestApiCmd_DryRun(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	output := stdout.String()
-	if !strings.Contains(output, "Dry Run") {
-		t.Error("expected dry run output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\nstdout:\n%s\nstderr:\n%s", err, stdout.String(), stderr.String())
 	}
-	if !strings.Contains(output, "/open-apis/test") {
-		t.Error("expected path in dry run output")
+	if got["ok"] != true || got["identity"] != "bot" || got["dry_run"] != true {
+		t.Fatalf("unexpected dry-run envelope: %#v", got)
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("data = %#v, want object", got["data"])
+	}
+	api, ok := data["api"].([]interface{})
+	if !ok || len(api) != 1 {
+		t.Fatalf("api = %#v, want one call", data["api"])
+	}
+	call, ok := api[0].(map[string]interface{})
+	if !ok || call["url"] != "/open-apis/test" {
+		t.Fatalf("api[0] = %#v", api[0])
+	}
+	if strings.Contains(stdout.String(), "=== Dry Run ===") {
+		t.Fatalf("stdout should not contain dry-run banner: %s", stdout.String())
+	}
+}
+
+func TestApiCmd_DryRunWithJq(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	cmd := newTestApiCmd(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/test", "--as", "bot", "--dry-run", "--jq", ".data.api[0].url"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got := strings.TrimSpace(stdout.String()); got != "/open-apis/test" {
+		t.Fatalf("jq output = %q, want /open-apis/test", got)
 	}
 }
 
@@ -152,6 +182,22 @@ func TestApiCmd_MissingArgs(t *testing.T) {
 	}
 }
 
+func TestApiCmd_EmptyMethodRejected(t *testing.T) {
+	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	cmd := newTestApiCmd(f, nil)
+	cmd.SetArgs([]string{"", "/open-apis/test", "--as", "bot", "--dry-run"})
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected validation error for empty HTTP method")
+	}
+	if !strings.Contains(err.Error(), "method") {
+		t.Fatalf("error should name the method argument, got: %v", err)
+	}
+}
+
 func TestApiCmd_InvalidParamsJSON(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
@@ -306,6 +352,9 @@ func TestApiCmd_OutputAndPageAllConflict(t *testing.T) {
 }
 
 func TestApiCmd_BinaryResponse_AutoSave(t *testing.T) {
+	dir := t.TempDir()
+	cmdutil.TestChdir(t, dir)
+
 	f, stdout, stderr, reg := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app-bin", AppSecret: "test-secret-bin", Brand: core.BrandFeishu,
 	})
@@ -325,8 +374,33 @@ func TestApiCmd_BinaryResponse_AutoSave(t *testing.T) {
 	if !strings.Contains(stderr.String(), "binary response detected") {
 		t.Error("expected binary response hint in stderr")
 	}
-	if !strings.Contains(stdout.String(), "saved_path") {
-		t.Error("expected saved_path in output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("stdout is not JSON: %v\nstdout:\n%s", err, stdout.String())
+	}
+	savedPath, _ := got["saved_path"].(string)
+	if savedPath == "" {
+		t.Fatalf("saved_path missing from output: %#v", got)
+	}
+	// The file must land inside the temporary cwd — this pins the isolation
+	// contract: rolling back TestChdir would leave download.bin in the repo.
+	wantDir, err := filepath.EvalSymlinks(dir)
+	if err != nil {
+		t.Fatal(err)
+	}
+	gotDir, err := filepath.EvalSymlinks(filepath.Dir(savedPath))
+	if err != nil {
+		t.Fatalf("saved_path %q dir not resolvable: %v", savedPath, err)
+	}
+	if gotDir != wantDir {
+		t.Errorf("saved_path %q is outside temp cwd %q", savedPath, wantDir)
+	}
+	content, err := os.ReadFile(savedPath)
+	if err != nil {
+		t.Fatalf("read saved file: %v", err)
+	}
+	if string(content) != "fake-binary-content" {
+		t.Errorf("saved file content = %q, want %q", content, "fake-binary-content")
 	}
 }
 
@@ -1000,11 +1074,23 @@ func TestApiCmd_DryRunWithFile(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 	out := stdout.String()
-	if !strings.Contains(out, "image") {
-		t.Errorf("expected dry-run output to mention file field, got: %s", out)
+	var env map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, out)
 	}
-	if !strings.Contains(out, "Dry Run") {
-		t.Errorf("expected dry-run header, got: %s", out)
+	if env["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", env["dry_run"])
+	}
+	data := env["data"].(map[string]interface{})
+	api := data["api"].([]interface{})
+	call := api[0].(map[string]interface{})
+	body := call["body"].(map[string]interface{})
+	file := body["file"].(map[string]interface{})
+	if file["field"] != "image" || file["path"] != tmpFile {
+		t.Fatalf("unexpected file dry-run body: %#v", body)
+	}
+	if strings.Contains(out, "=== Dry Run ===") {
+		t.Fatalf("stdout should not contain dry-run banner: %s", out)
 	}
 }
 

cmd/auth/login.go

@@ -40,6 +40,10 @@ type LoginOptions struct {
 
 var pollDeviceToken = larkauth.PollDeviceToken
 
+var resolveLoginClientAuth = func(ctx context.Context, cfg *core.CliConfig) (larkauth.ClientAuth, error) {
+	return larkauth.ClientAuthFromConfig(cfg).ResolveSigner(ctx)
+}
+
 // NewCmdAuthLogin creates the auth login subcommand.
 func NewCmdAuthLogin(f *cmdutil.Factory, runF func(*LoginOptions) error) *cobra.Command {
 	opts := &LoginOptions{Factory: f}
@@ -265,7 +269,11 @@ func authLoginRun(opts *LoginOptions) error {
 	if err != nil {
 		return err
 	}
-	authResp, err := larkauth.RequestDeviceAuthorization(httpClient, config.AppID, config.AppSecret, config.Brand, finalScope, f.IOStreams.ErrOut)
+	clientAuth, err := resolveLoginClientAuth(opts.Ctx, config)
+	if err != nil {
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "device authorization failed: %v", err).WithCause(err)
+	}
+	authResp, err := larkauth.RequestDeviceAuthorization(opts.Ctx, httpClient, clientAuth, config.Brand, finalScope, f.IOStreams.ErrOut)
 	if err != nil {
 		return errs.NewAuthenticationError(errs.SubtypeUnknown, "device authorization failed: %v", err).WithCause(err)
 	}
@@ -325,7 +333,7 @@ func authLoginRun(opts *LoginOptions) error {
 
 	// Step 3: Poll for token
 	log(msg.WaitingAuth)
-	result := pollDeviceToken(opts.Ctx, httpClient, config.AppID, config.AppSecret, config.Brand,
+	result := pollDeviceToken(opts.Ctx, httpClient, clientAuth, config.Brand,
 		authResp.DeviceCode, authResp.Interval, authResp.ExpiresIn, f.IOStreams.ErrOut)
 
 	if !result.OK {
@@ -398,6 +406,10 @@ func authLoginPollDeviceCode(opts *LoginOptions, config *core.CliConfig, msg *lo
 	if err != nil {
 		return err
 	}
+	clientAuth, err := resolveLoginClientAuth(opts.Ctx, config)
+	if err != nil {
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "authorization failed: %v", err).WithCause(err)
+	}
 	requestedScope, err := loadLoginRequestedScope(opts.DeviceCode)
 	if err != nil {
 		fmt.Fprintf(f.IOStreams.ErrOut, "[lark-cli] [WARN] auth login: failed to load cached requested scopes: %v\n", err)
@@ -415,7 +427,7 @@ func authLoginPollDeviceCode(opts *LoginOptions, config *core.CliConfig, msg *lo
 		fmt.Fprintln(f.IOStreams.ErrOut, msg.AgentTimeoutHint)
 	}
 	log(msg.WaitingAuth)
-	result := pollDeviceToken(opts.Ctx, httpClient, config.AppID, config.AppSecret, config.Brand,
+	result := pollDeviceToken(opts.Ctx, httpClient, clientAuth, config.Brand,
 		opts.DeviceCode, 5, 600, f.IOStreams.ErrOut)
 
 	if !result.OK {

cmd/auth/login_messages.go

@@ -128,5 +128,5 @@ func getLoginMsg(lang i18n.Lang) *loginMsg {
 // (not backed by from_meta service specs). Descriptions are now centralized in
 // service_descriptions.json.
 func getShortcutOnlyDomainNames() []string {
-	return []string{"base", "contact", "docs", "markdown", "apps", "note"}
+	return []string{"application", "base", "contact", "docs", "markdown", "apps", "note"}
 }

cmd/auth/login_test.go

@@ -716,6 +716,14 @@ func TestAuthLoginRun_DeviceCodeUsesCachedRequestedScopes(t *testing.T) {
 	setupLoginConfigDir(t)
 	t.Setenv("HOME", t.TempDir())
 
+	originalResolve := resolveLoginClientAuth
+	resolveCalls := 0
+	resolveLoginClientAuth = func(_ context.Context, cfg *core.CliConfig) (larkauth.ClientAuth, error) {
+		resolveCalls++
+		return larkauth.ClientAuthFromConfig(cfg), nil
+	}
+	t.Cleanup(func() { resolveLoginClientAuth = originalResolve })
+
 	multi := &core.MultiAppConfig{
 		CurrentApp: "default",
 		Apps: []core.AppConfig{
@@ -778,6 +786,9 @@ func TestAuthLoginRun_DeviceCodeUsesCachedRequestedScopes(t *testing.T) {
 	if err != nil {
 		t.Fatalf("no-wait authLoginRun() error = %v", err)
 	}
+	if resolveCalls != 1 {
+		t.Fatalf("no-wait client auth preparations = %d, want 1", resolveCalls)
+	}
 	if got, err := loadLoginRequestedScope("device-code"); err != nil || got != "im:message:send" {
 		t.Fatalf("loadLoginRequestedScope() = (%q, %v), want requested scope", got, err)
 	}
@@ -793,6 +804,9 @@ func TestAuthLoginRun_DeviceCodeUsesCachedRequestedScopes(t *testing.T) {
 	if err != nil {
 		t.Fatalf("device-code authLoginRun() error = %v", err)
 	}
+	if resolveCalls != 2 {
+		t.Fatalf("split-flow client auth preparations = %d, want one per invocation", resolveCalls)
+	}
 	got := stderr.String()
 	for _, want := range []string{
 		"OK: 授权成功! 用户: tester (ou_user)",
@@ -847,7 +861,7 @@ func TestAuthLoginRun_DeviceCodeTokenNilCleansScopeCache(t *testing.T) {
 
 	original := pollDeviceToken
 	t.Cleanup(func() { pollDeviceToken = original })
-	pollDeviceToken = func(ctx context.Context, httpClient *http.Client, appId, appSecret string, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) *larkauth.DeviceFlowResult {
+	pollDeviceToken = func(ctx context.Context, httpClient *http.Client, ca larkauth.ClientAuth, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) *larkauth.DeviceFlowResult {
 		return &larkauth.DeviceFlowResult{OK: true, Token: nil}
 	}
 
@@ -884,9 +898,17 @@ func TestAuthLoginRun_JSONAbort_StdoutEventOnly_StderrEmpty(t *testing.T) {
 	keyring.MockInit()
 	setupLoginConfigDir(t)
 
+	originalResolve := resolveLoginClientAuth
+	resolveCalls := 0
+	resolveLoginClientAuth = func(_ context.Context, cfg *core.CliConfig) (larkauth.ClientAuth, error) {
+		resolveCalls++
+		return larkauth.ClientAuthFromConfig(cfg), nil
+	}
+	t.Cleanup(func() { resolveLoginClientAuth = originalResolve })
+
 	original := pollDeviceToken
 	t.Cleanup(func() { pollDeviceToken = original })
-	pollDeviceToken = func(ctx context.Context, httpClient *http.Client, appId, appSecret string, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) *larkauth.DeviceFlowResult {
+	pollDeviceToken = func(ctx context.Context, httpClient *http.Client, ca larkauth.ClientAuth, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) *larkauth.DeviceFlowResult {
 		return &larkauth.DeviceFlowResult{OK: false, Message: "user denied"}
 	}
 
@@ -919,6 +941,9 @@ func TestAuthLoginRun_JSONAbort_StdoutEventOnly_StderrEmpty(t *testing.T) {
 	if err == nil {
 		t.Fatal("expected error for aborted authorization")
 	}
+	if resolveCalls != 1 {
+		t.Fatalf("blocking-flow client auth preparations = %d, want 1", resolveCalls)
+	}
 	if gotCode := output.ExitCodeOf(err); gotCode != output.ExitAuth {
 		t.Fatalf("exit code = %d, want %d", gotCode, output.ExitAuth)
 	}

cmd/auth/testmain_test.go

@@ -0,0 +1,46 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/larksuite/cli/internal/registry/registrytest"
+)
+
+// TestMain isolates auth command tests from the host machine: config, logs
+// and the registry cache are redirected to a temp dir, then the registry is
+// seeded from the tracked fixture and initialized eagerly. Domain-completion
+// tests read the registry, so without seeding a clean checkout would either
+// fail or trigger a remote metadata fetch.
+//
+// Note: os.Exit skips deferred functions, so cleanup runs explicitly after
+// m.Run before exiting.
+func TestMain(m *testing.M) {
+	root, err := os.MkdirTemp("", "lark-cli-cmd-auth-test-*")
+	if err != nil {
+		println("cmd/auth test setup: MkdirTemp failed:", err.Error())
+		os.Exit(2)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_CONFIG_DIR", filepath.Join(root, "config")); err != nil {
+		println("cmd/auth test setup: Setenv failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_LOG_DIR", filepath.Join(root, "logs")); err != nil {
+		println("cmd/auth test setup: Setenv failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	if err := registrytest.Seed(root); err != nil {
+		println("cmd/auth test setup: registrytest.Seed failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	code := m.Run()
+	_ = os.RemoveAll(root)
+	os.Exit(code)
+}

cmd/build.go

@@ -25,8 +25,10 @@ import (
 	"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/hook"
 	"github.com/larksuite/cli/internal/keychain"
+	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/shortcuts"
 	"github.com/spf13/cobra"
 )
@@ -42,6 +44,18 @@ type buildConfig struct {
 	skipStrictMode bool
 	skipService    bool
 	serviceCatalog *apicatalog.Catalog
+	startupBrand   core.LarkBrand
+}
+
+// WithStartupBrand initializes the API registry with the given brand before
+// any command registration touches the runtime catalog. Without it the
+// registry's sync.Once locks onto the Feishu default at first catalog access,
+// long before the lazily-resolved config brand is known — see
+// ResolveStartupBrand for the caller-side resolution.
+func WithStartupBrand(brand core.LarkBrand) BuildOption {
+	return func(c *buildConfig) {
+		c.startupBrand = brand
+	}
 }
 
 // WithIO sets the IO streams for the CLI by wrapping raw reader/writers.
@@ -154,6 +168,12 @@ func buildInternal(ctx context.Context, inv cmdutil.InvocationContext, opts ...B
 		cfg.streams = cmdutil.SystemIO()
 	}
 
+	// Initialize the registry brand before anything touches the runtime
+	// catalog (its sync.Once would otherwise lock onto the Feishu default).
+	if cfg.startupBrand != "" {
+		registry.InitWithBrand(cfg.startupBrand)
+	}
+
 	f := cmdutil.NewDefault(cfg.streams, inv)
 	if cfg.keychain != nil {
 		f.Keychain = cfg.keychain

cmd/config/bind.go

@@ -4,12 +4,18 @@
 package config
 
 import (
+	"bytes"
+	"context"
 	"encoding/json"
 	"fmt"
 	"os"
+	"path/filepath"
 	"strings"
+	"sync"
+	"time"
 
 	"github.com/charmbracelet/huh"
+	"github.com/gofrs/flock"
 	"github.com/spf13/cobra"
 
 	"github.com/larksuite/cli/errs"
@@ -22,9 +28,14 @@ import (
 	"github.com/larksuite/cli/internal/vfs"
 )
 
+const bindCommitLockTimeout = 5 * time.Second
+
+var bindCommitMu sync.Mutex
+
 // BindOptions holds all inputs for config bind.
 type BindOptions struct {
 	Factory *cmdutil.Factory
+	Ctx     context.Context
 	Source  string
 	AppID   string
 	// Identity selects one of two presets — "bot-only" or "user-default" —
@@ -94,6 +105,7 @@ Interactive terminal use: run with no flags to enter the TUI form.`,
   # Interactive (terminal user) — TUI prompts for everything:
   lark-cli config bind`,
 		RunE: func(cmd *cobra.Command, args []string) error {
+			opts.Ctx = cmd.Context()
 			opts.langExplicit = cmd.Flags().Changed("lang")
 			if runF != nil {
 				return runF(opts)
@@ -139,10 +151,11 @@ func configBindRun(opts *BindOptions) error {
 		return nil
 	}
 
-	appConfig, err := resolveAccount(opts, source)
+	result, err := resolveAccount(opts, source)
 	if err != nil {
 		return err
 	}
+	appConfig := result.AppConfig
 	opts.Brand = string(appConfig.Brand)
 
 	if err := resolveIdentity(opts); err != nil {
@@ -151,10 +164,20 @@ func configBindRun(opts *BindOptions) error {
 	if err := warnIdentityEscalation(opts, existing.ConfigBytes); err != nil {
 		return err
 	}
-	applyPreferences(appConfig, opts, priorLang(existing.ConfigBytes))
+	if err := validateBindResult(bindContext(opts), opts, result); err != nil {
+		return err
+	}
+	applyPreferences(appConfig, opts, priorLangForApp(existing.ConfigBytes, appConfig.AppId))
 	noticeUserDefaultRisk(opts)
 
-	return commitBinding(opts, appConfig, existing.ConfigBytes, source, targetConfigPath)
+	return commitBinding(opts, result, existing.ConfigBytes, source, targetConfigPath)
+}
+
+func bindContext(opts *BindOptions) context.Context {
+	if opts != nil && opts.Ctx != nil {
+		return opts.Ctx
+	}
+	return context.Background()
 }
 
 // existingBinding is the outcome of checking whether a workspace was already
@@ -239,9 +262,15 @@ func finalizeSource(opts *BindOptions) (string, error) {
 // notice on success so the caller still sees that a rebind happened.
 // See existingBinding for the returned fields.
 func reconcileExistingBinding(opts *BindOptions, source, configPath string) (existingBinding, error) {
-	oldConfigData, _ := vfs.ReadFile(configPath)
-	if oldConfigData == nil {
-		return existingBinding{}, nil
+	oldConfigData, err := vfs.ReadFile(configPath)
+	if err != nil {
+		if os.IsNotExist(err) {
+			return existingBinding{}, nil
+		}
+		return existingBinding{}, errs.NewConfigError(errs.SubtypeInvalidConfig,
+			"cannot read existing workspace config %s: %v", configPath, err).
+			WithHint("fix the file permissions or I/O error before binding").
+			WithCause(err)
 	}
 
 	if opts.IsTUI {
@@ -264,7 +293,7 @@ func reconcileExistingBinding(opts *BindOptions, source, configPath string) (exi
 // enumerate candidates, pick one via the shared decision layer, and build a
 // ready-to-persist AppConfig. Adding a new bind source only requires
 // implementing SourceBinder — none of the logic below needs to change.
-func resolveAccount(opts *BindOptions, source string) (*core.AppConfig, error) {
+func resolveAccount(opts *BindOptions, source string) (*BindResult, error) {
 	binder, err := newBinder(source, opts)
 	if err != nil {
 		return nil, err
@@ -278,7 +307,7 @@ func resolveAccount(opts *BindOptions, source string) (*core.AppConfig, error) {
 	if err != nil {
 		return nil, err
 	}
-	return binder.Build(picked.AppID)
+	return binder.Build(bindContext(opts), *picked)
 }
 
 // resolveIdentity ensures opts.Identity is set before applyPreferences runs.
@@ -389,10 +418,21 @@ func applyPreferences(appConfig *core.AppConfig, opts *BindOptions, prior i18n.L
 // wrong profile's preference into a re-bind when the workspace holds multiple
 // named profiles and the active one disagrees with Apps[0].
 func priorLang(previousConfigBytes []byte) i18n.Lang {
+	return priorLangForApp(previousConfigBytes, "")
+}
+
+func priorLangForApp(previousConfigBytes []byte, appID string) i18n.Lang {
 	var multi core.MultiAppConfig
 	if json.Unmarshal(previousConfigBytes, &multi) != nil {
 		return ""
 	}
+	if appID != "" {
+		for i := range multi.Apps {
+			if multi.Apps[i].AppId == appID {
+				return multi.Apps[i].Lang
+			}
+		}
+	}
 	if app := multi.CurrentAppConfig(""); app != nil {
 		return app.Lang
 	}
@@ -400,12 +440,16 @@ func priorLang(previousConfigBytes []byte) i18n.Lang {
 }
 
 // commitBinding finalizes the bind: atomic write of the new workspace config,
-// best-effort cleanup of stale keychain entries from the previous binding (if
-// any), and a JSON success envelope. Cleanup runs only after the new config
-// is durably written — if anything fails earlier, the old workspace stays
-// usable.
-func commitBinding(opts *BindOptions, appConfig *core.AppConfig, previousConfigBytes []byte, source, configPath string) error {
-	multi := &core.MultiAppConfig{Apps: []core.AppConfig{*appConfig}}
+// deferred provider-manifest commit for keyless binds, and a JSON success
+// envelope. The write and provider commit are serialized across CLI processes;
+// if the provider commit fails, the workspace write is rolled back before any
+// success output so an existing binding remains usable.
+func commitBinding(opts *BindOptions, result *BindResult, previousConfigBytes []byte, source, configPath string) error {
+	appConfig := result.AppConfig
+	multi, err := mergeBoundApp(appConfig, previousConfigBytes, opts.langExplicit)
+	if err != nil {
+		return err
+	}
 
 	if err := vfs.MkdirAll(core.GetConfigDir(), 0700); err != nil {
 		return errs.NewInternalError(errs.SubtypeFileIO, "failed to create workspace directory: %v", err).WithCause(err)
@@ -414,9 +458,38 @@ func commitBinding(opts *BindOptions, appConfig *core.AppConfig, previousConfigB
 	if err != nil {
 		return errs.NewInternalError(errs.SubtypeStorage, "failed to marshal config: %v", err).WithCause(err)
 	}
-	if err := validate.AtomicWrite(configPath, append(data, '\n'), 0600); err != nil {
+	releaseCommitLock, err := acquireBindCommitLock(opts)
+	if err != nil {
+		return err
+	}
+	commitLockHeld := true
+	defer func() {
+		if commitLockHeld {
+			releaseCommitLock()
+		}
+	}()
+	if err := ensureBindingSnapshotUnchanged(configPath, previousConfigBytes); err != nil {
+		return err
+	}
+	newConfigBytes := append(data, '\n')
+	if err := validate.AtomicWrite(configPath, newConfigBytes, 0600); err != nil {
 		return errs.NewInternalError(errs.SubtypeStorage, "failed to write config %s: %v", configPath, err).WithCause(err)
 	}
+	if result.commitProviderManifest != nil {
+		if err := result.commitProviderManifest(); err != nil {
+			rollbackErr := rollbackBindingConfig(configPath, previousConfigBytes, newConfigBytes)
+			if rollbackErr != nil {
+				return errs.NewInternalError(errs.SubtypeStorage,
+					"failed to persist keyless signer provider: %v; failed to restore workspace config: %v", err, rollbackErr).
+					WithCause(err)
+			}
+			return errs.NewInternalError(errs.SubtypeStorage,
+				"failed to persist keyless signer provider (workspace config restored): %v", err).
+				WithCause(err)
+		}
+	}
+	releaseCommitLock()
+	commitLockHeld = false
 
 	replaced := previousConfigBytes != nil
 	// uiMsg renders human-facing TUI text (stderr success banner). Follows
@@ -425,10 +498,6 @@ func commitBinding(opts *BindOptions, appConfig *core.AppConfig, previousConfigB
 	uiMsg := getBindMsg(opts.UILang)
 	display := sourceDisplayName(source)
 
-	if replaced {
-		cleanupKeychainFromData(opts.Factory.Keychain, previousConfigBytes, appConfig)
-	}
-
 	fmt.Fprintln(opts.Factory.IOStreams.ErrOut,
 		fmt.Sprintf(uiMsg.BindSuccessHeader, display)+"\n"+uiMsg.BindSuccessNotice)
 
@@ -470,6 +539,133 @@ func commitBinding(opts *BindOptions, appConfig *core.AppConfig, previousConfigB
 	return nil
 }
 
+func acquireBindCommitLock(opts *BindOptions) (func(), error) {
+	bindCommitMu.Lock()
+	lockDir := filepath.Join(core.GetBaseConfigDir(), "locks")
+	if err := vfs.MkdirAll(lockDir, 0700); err != nil {
+		bindCommitMu.Unlock()
+		return nil, errs.NewInternalError(errs.SubtypeStorage,
+			"failed to create bind lock directory: %v", err).WithCause(err)
+	}
+	fileLock := flock.New(filepath.Join(lockDir, "config-bind.lock"))
+	ctx, cancel := context.WithTimeout(bindContext(opts), bindCommitLockTimeout)
+	locked, err := fileLock.TryLockContext(ctx, 50*time.Millisecond)
+	cancel()
+	if err != nil || !locked {
+		bindCommitMu.Unlock()
+		if err == nil {
+			err = context.DeadlineExceeded
+		}
+		return nil, errs.NewInternalError(errs.SubtypeStorage,
+			"failed to acquire config bind lock: %v", err).WithCause(err)
+	}
+	return func() {
+		_ = fileLock.Unlock()
+		bindCommitMu.Unlock()
+	}, nil
+}
+
+func ensureBindingSnapshotUnchanged(configPath string, previousConfigBytes []byte) error {
+	current, err := vfs.ReadFile(configPath)
+	if err != nil {
+		if os.IsNotExist(err) && previousConfigBytes == nil {
+			return nil
+		}
+		return errs.NewInternalError(errs.SubtypeStorage,
+			"failed to recheck workspace config %s before binding: %v", configPath, err).WithCause(err)
+	}
+	if previousConfigBytes != nil && bytes.Equal(current, previousConfigBytes) {
+		return nil
+	}
+	return errs.NewConfigError(errs.SubtypeInvalidConfig,
+		"workspace config %s changed while the bind was being validated", configPath).
+		WithHint("retry config bind using the latest workspace state")
+}
+
+func rollbackBindingConfig(configPath string, previousConfigBytes, writtenConfigBytes []byte) error {
+	current, err := vfs.ReadFile(configPath)
+	if err != nil {
+		if os.IsNotExist(err) && previousConfigBytes == nil {
+			return nil
+		}
+		//nolint:forbidigo // intermediate rollback diagnostic; commitBinding wraps it into a typed storage error
+		return fmt.Errorf("recheck workspace config before rollback: %w", err)
+	}
+	if !bytes.Equal(current, writtenConfigBytes) {
+		//nolint:forbidigo // intermediate rollback diagnostic; commitBinding wraps it into a typed storage error
+		return fmt.Errorf("workspace config changed after the bind write; refusing to overwrite it during rollback")
+	}
+	if previousConfigBytes != nil {
+		return validate.AtomicWrite(configPath, previousConfigBytes, 0600)
+	}
+	if err := vfs.Remove(configPath); err != nil && !os.IsNotExist(err) {
+		return err
+	}
+	return nil
+}
+
+// mergeBoundApp upserts by unique appId and activates the target while
+// preserving every non-target profile and root policy.
+func mergeBoundApp(incoming *core.AppConfig, previousBytes []byte, langExplicit bool) (*core.MultiAppConfig, error) {
+	if incoming == nil || strings.TrimSpace(incoming.AppId) == "" {
+		return nil, errs.NewInternalError(errs.SubtypeSDKError, "config bind produced an empty app")
+	}
+	if previousBytes == nil {
+		return &core.MultiAppConfig{Apps: []core.AppConfig{*incoming}, CurrentApp: incoming.ProfileName()}, nil
+	}
+
+	var multi core.MultiAppConfig
+	if err := json.Unmarshal(previousBytes, &multi); err != nil {
+		return nil, errs.NewConfigError(errs.SubtypeInvalidConfig,
+			"cannot update malformed workspace config: %v", err).WithCause(err)
+	}
+	match := -1
+	for i := range multi.Apps {
+		if multi.Apps[i].AppId != incoming.AppId {
+			continue
+		}
+		if match >= 0 {
+			return nil, errs.NewConfigError(errs.SubtypeInvalidConfig,
+				"appId %s appears in multiple CLI profiles", incoming.AppId).
+				WithHint("remove the duplicate profile before binding")
+		}
+		match = i
+	}
+
+	oldActive := ""
+	if active := multi.CurrentAppConfig(""); active != nil {
+		oldActive = active.ProfileName()
+	}
+	if match >= 0 {
+		old := multi.Apps[match]
+		incoming.Name = old.Name
+		incoming.Users = old.Users
+		if !langExplicit {
+			incoming.Lang = old.Lang
+		}
+		multi.Apps[match] = *incoming
+	} else {
+		for i := range multi.Apps {
+			if multi.Apps[i].Name != "" && multi.Apps[i].Name == incoming.AppId {
+				return nil, errs.NewConfigError(errs.SubtypeInvalidConfig,
+					"new appId %s conflicts with existing profile name", incoming.AppId).
+					WithHint("rename the existing profile before binding")
+			}
+		}
+		incoming.Name = ""
+		incoming.Users = []core.AppUser{}
+		multi.Apps = append(multi.Apps, *incoming)
+		match = len(multi.Apps) - 1
+	}
+
+	targetName := multi.Apps[match].ProfileName()
+	if oldActive != targetName {
+		multi.PreviousApp = oldActive
+		multi.CurrentApp = targetName
+	}
+	return &multi, nil
+}
+
 // cleanupKeychainFromData removes keychain entries referenced by a previous
 // config snapshot, skipping any entry whose keychain ID is still in use by
 // the new app config. This prevents rebinding the same appId from deleting

cmd/config/bind_test.go

@@ -84,6 +84,21 @@ func saveWorkspace(t *testing.T) {
 	t.Cleanup(func() { core.SetCurrentWorkspace(orig) })
 }
 
+func TestReconcileExistingBinding_ReadFailureIsNotTreatedAsMissing(t *testing.T) {
+	configPath := filepath.Join(t.TempDir(), "config.json")
+	if err := os.Mkdir(configPath, 0700); err != nil {
+		t.Fatal(err)
+	}
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	_, err := reconcileExistingBinding(&BindOptions{Factory: f}, "openclaw", configPath)
+	if err == nil || !strings.Contains(err.Error(), "cannot read existing workspace config") {
+		t.Fatalf("reconcileExistingBinding error = %v", err)
+	}
+	if info, statErr := os.Stat(configPath); statErr != nil || !info.IsDir() {
+		t.Fatalf("unreadable existing config was changed: info=%v error=%v", info, statErr)
+	}
+}
+
 // ── Command flag parsing tests (aligned with config_test.go pattern) ──
 
 func TestConfigBindCmd_FlagParsing(t *testing.T) {
@@ -916,25 +931,6 @@ func TestReadDotenv_ValueWithEquals(t *testing.T) {
 	}
 }
 
-func TestNormalizeBrand(t *testing.T) {
-	tests := []struct {
-		input string
-		want  string
-	}{
-		{"", "feishu"},
-		{"feishu", "feishu"},
-		{"lark", "lark"},
-		{"LARK", "lark"},
-		{" lark ", "lark"},
-		{"Lark", "lark"},
-	}
-	for _, tt := range tests {
-		if got := normalizeBrand(tt.input); got != tt.want {
-			t.Errorf("normalizeBrand(%q) = %q, want %q", tt.input, got, tt.want)
-		}
-	}
-}
-
 func TestResolveOpenClawConfigPath_Overrides(t *testing.T) {
 	t.Run("OPENCLAW_CONFIG_PATH wins", func(t *testing.T) {
 		custom := filepath.Join(t.TempDir(), "custom.json")
@@ -1516,7 +1512,11 @@ func assertPresetApplied(t *testing.T, configPath string, wantStrict core.Strict
 	if len(multi.Apps) == 0 {
 		t.Fatalf("no apps in %s", configPath)
 	}
-	app := multi.Apps[0]
+	appPtr := multi.CurrentAppConfig("")
+	if appPtr == nil {
+		t.Fatalf("no current app in %s", configPath)
+	}
+	app := *appPtr
 	if app.StrictMode == nil || *app.StrictMode != wantStrict {
 		t.Errorf("StrictMode = %v, want %q", app.StrictMode, wantStrict)
 	}

cmd/config/binder.go

@@ -4,6 +4,7 @@
 package config
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"path/filepath"
@@ -23,6 +24,19 @@ type Candidate struct {
 	Label string
 }
 
+// BindResult carries the selected app. External signer configuration is the
+// logical provider on AppConfig.KeyRef; bind never persists executable paths.
+type BindResult struct {
+	AppConfig *core.AppConfig
+
+	// commitProviderManifest is populated only after a keyless bind probe has
+	// authenticated successfully. commitBinding runs it after the workspace
+	// config write and rolls that write back if the global provider index cannot
+	// be committed, so a failed bind never changes the signer used by existing
+	// applications.
+	commitProviderManifest func() error
+}
+
 // SourceBinder abstracts a bind source (openclaw / hermes / future sources).
 // Implementations only list candidates and build an AppConfig for a chosen
 // candidate — they stay out of mode (TUI vs flag) and orchestration concerns.
@@ -34,9 +48,9 @@ type SourceBinder interface {
 	// ListCandidates enumerates bindable accounts from the source config.
 	// An empty slice is valid (selectCandidate will turn it into a typed error).
 	ListCandidates() ([]Candidate, error)
-	// Build resolves secrets, persists to keychain, and returns a ready AppConfig
-	// for the chosen candidate AppID. Must be called after ListCandidates succeeds.
-	Build(appID string) (*core.AppConfig, error)
+	// Build resolves credentials and returns the app plus any signer command
+	// needed by the workspace. Must be called after ListCandidates succeeds.
+	Build(ctx context.Context, candidate Candidate) (*BindResult, error)
 }
 
 // newBinder constructs the SourceBinder for the given source name.
@@ -93,11 +107,21 @@ func selectCandidate(
 	}
 
 	if appIDFlag != "" {
+		var matches []Candidate
 		for i := range candidates {
 			if candidates[i].AppID == appIDFlag {
-				return &candidates[i], nil
+				matches = append(matches, candidates[i])
 			}
 		}
+		if len(matches) == 1 {
+			return &matches[0], nil
+		}
+		if len(matches) > 1 {
+			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"--app-id %q matches multiple accounts in %s", appIDFlag, cfgBase).
+				WithHint("run 'lark-cli config bind' interactively to choose an account, or configure unique app IDs:\n  %s", formatCandidates(matches)).
+				WithParam("--app-id")
+		}
 		return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "--app-id %q not found in %s", appIDFlag, cfgBase).
 			WithHint("available app IDs:\n  %s", formatCandidates(candidates)).
 			WithParam("--app-id")
@@ -168,20 +192,48 @@ func (b *openclawBinder) ListCandidates() ([]Candidate, error) {
 	return result, nil
 }
 
-func (b *openclawBinder) Build(appID string) (*core.AppConfig, error) {
+func (b *openclawBinder) Build(_ context.Context, candidate Candidate) (*BindResult, error) {
 	if b.cfg == nil {
 		return nil, errs.NewInternalError(errs.SubtypeSDKError, "internal: Build called before ListCandidates")
 	}
 
 	var selected *binding.CandidateApp
 	for i := range b.rawApps {
-		if b.rawApps[i].AppID == appID {
+		if b.rawApps[i].AppID == candidate.AppID && b.rawApps[i].Label == candidate.Label {
 			selected = &b.rawApps[i]
 			break
 		}
 	}
 	if selected == nil {
-		return nil, errs.NewInternalError(errs.SubtypeSDKError, "internal: appID %q not in candidates", appID)
+		return nil, errs.NewInternalError(errs.SubtypeSDKError,
+			"internal: account %q (appID %q) not in candidates", candidate.Label, candidate.AppID)
+	}
+	if selected.AuthMethod != "" && selected.AuthMethod != "app_secret" && selected.AuthMethod != binding.AuthMethodPrivateKeyJWT {
+		return nil, errs.NewConfigError(errs.SubtypeInvalidConfig, "unknown authMethod %q for app %s in %s", selected.AuthMethod, selected.AppID, b.path).
+			WithHint("supported values are app_secret and private_key_jwt")
+	}
+
+	// openclaw-lark deliberately gives appSecret precedence when both shapes
+	// are present. Reproduce that behavior so bind never changes the effective
+	// credential type merely because authMethod was left stale.
+	if selected.AppSecret.IsZero() && selected.AuthMethod == binding.AuthMethodPrivateKeyJWT {
+		if strings.TrimSpace(selected.KeyRef) == "" {
+			return nil, errs.NewConfigError(errs.SubtypeInvalidConfig,
+				"private_key_jwt app %s in %s is missing keyRef", selected.AppID, b.path).
+				WithHint("re-run OpenClaw onboarding so the keyless account records its signer keyRef")
+		}
+		return &BindResult{
+			AppConfig: &core.AppConfig{
+				AppId:      selected.AppID,
+				Brand:      core.ParseBrand(selected.Brand),
+				AuthMethod: core.AuthMethodPrivateKeyJWT,
+				KeyRef: &core.SecretRef{
+					Source:   core.SecretSourceTEE,
+					Provider: core.KeylessProviderLarkSuite,
+					ID:       strings.TrimSpace(selected.KeyRef),
+				},
+			},
+		}, nil
 	}
 
 	if selected.AppSecret.IsZero() {
@@ -202,11 +254,11 @@ func (b *openclawBinder) Build(appID string) (*core.AppConfig, error) {
 			WithCause(err)
 	}
 
-	return &core.AppConfig{
+	return &BindResult{AppConfig: &core.AppConfig{
 		AppId:     selected.AppID,
 		AppSecret: stored,
-		Brand:     core.LarkBrand(normalizeBrand(selected.Brand)),
-	}, nil
+		Brand:     core.ParseBrand(selected.Brand),
+	}}, nil
 }
 
 // ──────────────────────────────────────────────────────────────
@@ -238,7 +290,8 @@ func (b *hermesBinder) ListCandidates() ([]Candidate, error) {
 	return []Candidate{{AppID: appID, Label: "default"}}, nil
 }
 
-func (b *hermesBinder) Build(appID string) (*core.AppConfig, error) {
+func (b *hermesBinder) Build(_ context.Context, candidate Candidate) (*BindResult, error) {
+	appID := candidate.AppID
 	if b.envMap == nil {
 		return nil, errs.NewInternalError(errs.SubtypeSDKError, "internal: Build called before ListCandidates")
 	}
@@ -258,11 +311,11 @@ func (b *hermesBinder) Build(appID string) (*core.AppConfig, error) {
 			WithCause(err)
 	}
 
-	return &core.AppConfig{
+	return &BindResult{AppConfig: &core.AppConfig{
 		AppId:     appID,
 		AppSecret: stored,
-		Brand:     core.LarkBrand(normalizeBrand(b.envMap["FEISHU_DOMAIN"])),
-	}, nil
+		Brand:     core.ParseBrand(b.envMap["FEISHU_DOMAIN"]),
+	}}, nil
 }
 
 // ──────────────────────────────────────────────────────────────
@@ -295,7 +348,8 @@ func (b *larkChannelBinder) ListCandidates() ([]Candidate, error) {
 	return []Candidate{{AppID: cfg.Accounts.App.ID, Label: "default"}}, nil
 }
 
-func (b *larkChannelBinder) Build(appID string) (*core.AppConfig, error) {
+func (b *larkChannelBinder) Build(_ context.Context, candidate Candidate) (*BindResult, error) {
+	appID := candidate.AppID
 	if b.cfg == nil {
 		return nil, errs.NewInternalError(errs.SubtypeSDKError, "internal: Build called before ListCandidates")
 	}
@@ -323,11 +377,11 @@ func (b *larkChannelBinder) Build(appID string) (*core.AppConfig, error) {
 			WithCause(err)
 	}
 
-	return &core.AppConfig{
+	return &BindResult{AppConfig: &core.AppConfig{
 		AppId:     appID,
 		AppSecret: stored,
-		Brand:     core.LarkBrand(normalizeBrand(b.cfg.Accounts.App.Tenant)),
-	}, nil
+		Brand:     core.ParseBrand(b.cfg.Accounts.App.Tenant),
+	}}, nil
 }
 
 // ──────────────────────────────────────────────────────────────
@@ -350,16 +404,6 @@ func sourceDisplayName(source string) string {
 	}
 }
 
-// normalizeBrand applies .strip().lower() and defaults to "feishu".
-// Aligns with Hermes gateway/platforms/feishu.py:1119 behavior.
-func normalizeBrand(raw string) string {
-	s := strings.TrimSpace(strings.ToLower(raw))
-	if s == "" {
-		return "feishu"
-	}
-	return s
-}
-
 // resolveHermesEnvPath returns the path to Hermes's .env file.
 // Respects HERMES_HOME override; defaults to ~/.hermes/.env.
 //

cmd/config/binder_test.go

@@ -4,10 +4,12 @@
 package config
 
 import (
+	"context"
 	"path/filepath"
 	"reflect"
 	"testing"
 
+	"github.com/larksuite/cli/internal/binding"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
 )
@@ -20,10 +22,10 @@ type fakeBinder struct {
 	path string
 }
 
-func (b *fakeBinder) Name() string                                { return b.name }
-func (b *fakeBinder) ConfigPath() string                          { return b.path }
-func (b *fakeBinder) ListCandidates() ([]Candidate, error)        { return nil, nil }
-func (b *fakeBinder) Build(appID string) (*core.AppConfig, error) { return nil, nil }
+func (b *fakeBinder) Name() string                                          { return b.name }
+func (b *fakeBinder) ConfigPath() string                                    { return b.path }
+func (b *fakeBinder) ListCandidates() ([]Candidate, error)                  { return nil, nil }
+func (b *fakeBinder) Build(context.Context, Candidate) (*BindResult, error) { return nil, nil }
 
 // tuiUnreachable is a tuiPrompt that fails the test if called. It's the
 // guardrail that proves the non-TUI decision paths really do stay out of the
@@ -107,6 +109,20 @@ func TestSelectCandidate_AppIDFlag_NoMatch(t *testing.T) {
 	})
 }
 
+func TestSelectCandidate_AppIDFlag_RejectsDuplicateInheritedAppID(t *testing.T) {
+	b := &fakeBinder{name: "openclaw", path: "/tmp/openclaw.json"}
+	candidates := []Candidate{
+		{AppID: "cli_shared", Label: "work"},
+		{AppID: "cli_shared", Label: "personal"},
+	}
+	_, err := selectCandidate(b, candidates, "cli_shared", false, tuiUnreachable(t))
+	assertExitError(t, err, output.ExitValidation, wantErrDetail{
+		Type:    "validation",
+		Message: `--app-id "cli_shared" matches multiple accounts in openclaw.json`,
+		Hint:    "run 'lark-cli config bind' interactively to choose an account, or configure unique app IDs:\n  cli_shared (work)\n  cli_shared (personal)",
+	})
+}
+
 func TestSelectCandidate_MultiCandidate_NoFlag_NonTUI(t *testing.T) {
 	// Flag-mode with multiple candidates and no --app-id must produce a
 	// validation error and the candidate list, never an interactive prompt.
@@ -175,6 +191,27 @@ func TestSelectCandidate_AppIDFlag_WinsOverTUI(t *testing.T) {
 	assertCandidate(t, got, Candidate{AppID: "cli_b"})
 }
 
+func TestOpenClawBuildUsesSelectedLabelWhenAppIDIsShared(t *testing.T) {
+	b := &openclawBinder{
+		cfg: &binding.OpenClawRoot{},
+		rawApps: []binding.CandidateApp{
+			{Label: "work", AppID: "cli_shared", AuthMethod: binding.AuthMethodPrivateKeyJWT, KeyRef: "work-key"},
+			{Label: "personal", AppID: "cli_shared", AuthMethod: binding.AuthMethodPrivateKeyJWT, KeyRef: "personal-key"},
+		},
+	}
+
+	result, err := b.Build(context.Background(), Candidate{AppID: "cli_shared", Label: "personal"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if result.AppConfig.KeyRef == nil || result.AppConfig.KeyRef.ID != "personal-key" {
+		t.Fatalf("keyRef = %#v, want personal-key", result.AppConfig.KeyRef)
+	}
+	if result.AppConfig.KeyRef.Provider != core.KeylessProviderLarkSuite {
+		t.Fatalf("provider = %q, want %q", result.AppConfig.KeyRef.Provider, core.KeylessProviderLarkSuite)
+	}
+}
+
 func TestResolveLarkChannelConfigPath_Default(t *testing.T) {
 	home := t.TempDir()
 	t.Setenv("HOME", home)

cmd/config/config_test.go

@@ -65,6 +65,39 @@ func TestConfigInitCmd_FlagParsing(t *testing.T) {
 	}
 }
 
+func TestConfigInitCmd_PrivateKeyJWTFlag(t *testing.T) {
+	clearAgentEnv(t) // assumes local workspace; guard refuses init in agent contexts
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+
+	var gotOpts *ConfigInitOptions
+	cmd := NewCmdConfigInit(f, func(opts *ConfigInitOptions) error {
+		gotOpts = opts
+		return nil
+	})
+	cmd.SetArgs([]string{"--new", "--private-key-jwt"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !gotOpts.PrivateKeyJWT {
+		t.Error("PrivateKeyJWT = false, want true")
+	}
+}
+
+func TestConfigInitCmd_AuthMethodFlagRemoved(t *testing.T) {
+	clearAgentEnv(t) // assumes local workspace; guard refuses init in agent contexts
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+
+	cmd := NewCmdConfigInit(f, func(opts *ConfigInitOptions) error { return nil })
+	cmd.SetArgs([]string{"--new", "--auth-method", core.AuthMethodPrivateKeyJWT})
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected unknown flag error")
+	}
+	if !strings.Contains(err.Error(), "unknown flag: --auth-method") {
+		t.Fatalf("error = %v, want unknown --auth-method flag", err)
+	}
+}
+
 func TestConfigShowCmd_FlagParsing(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
@@ -193,7 +226,7 @@ func TestSaveInitConfig_OmitLangPreservesPrior(t *testing.T) {
 		t.Fatalf("seed config: %v", err)
 	}
 
-	if err := saveInitConfig("", existing, f, "cli_x", core.PlainSecret("s2"), core.BrandFeishu, ""); err != nil {
+	if err := saveInitConfig("", existing, f, "cli_x", core.PlainSecret("s2"), core.BrandFeishu, "", "", nil); err != nil {
 		t.Fatalf("saveInitConfig (no --lang): %v", err)
 	}
 
@@ -206,6 +239,68 @@ func TestSaveInitConfig_OmitLangPreservesPrior(t *testing.T) {
 	}
 }
 
+func TestKeyRefFromResult_PrivateKeyJWT(t *testing.T) {
+	ref := keyRefFromResult(&configInitResult{
+		AuthMethod: core.AuthMethodPrivateKeyJWT,
+		KeyLabel:   "lark-cli-default",
+	})
+	if ref == nil {
+		t.Fatal("keyRefFromResult returned nil")
+	}
+	if ref.Source != "tee" || ref.ID != "lark-cli-default" {
+		t.Fatalf("key ref = %#v, want tee/lark-cli-default", ref)
+	}
+
+	if ref := keyRefFromResult(&configInitResult{AuthMethod: core.AuthMethodPrivateKeyJWT}); ref != nil {
+		t.Fatalf("missing key label should not persist key ref, got %#v", ref)
+	}
+	if ref := keyRefFromResult(&configInitResult{AuthMethod: core.AuthMethodClientSecret, KeyLabel: "ignored"}); ref != nil {
+		t.Fatalf("client_secret should not persist key ref, got %#v", ref)
+	}
+	if ref := keyRefFromResult(nil); ref != nil {
+		t.Fatalf("nil result should not persist key ref, got %#v", ref)
+	}
+}
+
+func TestPersistInitResult_PrivateKeyJWT(t *testing.T) {
+	for _, tc := range []struct {
+		name    string
+		profile string
+		brand   core.LarkBrand
+	}{
+		{name: "single app", brand: core.BrandFeishu},
+		{name: "named profile", profile: "prod", brand: core.BrandLark},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+			f, _, _, _ := cmdutil.TestFactory(t, nil)
+			opts := &ConfigInitOptions{Factory: f, Ctx: context.Background(), Lang: "en_us"}
+			result := &configInitResult{
+				Brand: tc.brand, AppID: "cli_pkjwt",
+				AuthMethod: core.AuthMethodPrivateKeyJWT, KeyLabel: "lark-cli-default",
+			}
+			if err := persistInitResult(opts, f, tc.profile, result); err != nil {
+				t.Fatal(err)
+			}
+
+			got, err := core.LoadMultiAppConfig()
+			if err != nil {
+				t.Fatal(err)
+			}
+			app := got.CurrentAppConfig(tc.profile)
+			if app == nil || app.AppId != "cli_pkjwt" || app.AuthMethod != core.AuthMethodPrivateKeyJWT {
+				t.Fatalf("saved app = %#v", app)
+			}
+			if app.KeyRef == nil || app.KeyRef.Source != "tee" || app.KeyRef.ID != "lark-cli-default" {
+				t.Fatalf("KeyRef = %#v, want tee/lark-cli-default", app.KeyRef)
+			}
+			if !app.AppSecret.IsZero() {
+				t.Fatalf("private_key_jwt config must stay secretless, AppSecret value %#v", app.AppSecret)
+			}
+		})
+	}
+}
+
 // TestConfigInitCmd_InvalidLang verifies a non-empty --lang on config init is
 // strictly validated the same way bind validates: wrong-case / typo / removed
 // codes / hyphen form all exit with ExitValidation. (Empty is a no-op.)
@@ -388,7 +483,7 @@ func TestSaveAsProfile_RejectsProfileNameCollisionWithExistingAppID(t *testing.T
 		},
 	}
 
-	err := saveAsProfile(existing, keychain.KeychainAccess(&noopConfigKeychain{}), "cli_prod", "app-new", core.PlainSecret("new-secret"), core.BrandLark, "en")
+	err := saveAsProfile(existing, keychain.KeychainAccess(&noopConfigKeychain{}), "cli_prod", "app-new", core.PlainSecret("new-secret"), core.BrandLark, "en", "", nil)
 	if err == nil {
 		t.Fatal("expected conflict error")
 	}
@@ -427,6 +522,46 @@ func TestWrapSaveConfigError_PassesTypedValidationThrough(t *testing.T) {
 	}
 }
 
+func TestSaveAsProfile_UpdatePersistsPrivateKeyJWT(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+
+	existing := &core.MultiAppConfig{
+		Apps: []core.AppConfig{{
+			Name:      "prod",
+			AppId:     "cli_prod",
+			AppSecret: core.PlainSecret("old-secret"),
+			Brand:     core.BrandFeishu,
+			Users:     []core.AppUser{{UserOpenId: "ou_1", UserName: "User"}},
+		}},
+	}
+	keyRef := &core.SecretRef{Source: "tee", ID: "lark-cli-default"}
+
+	if err := saveAsProfile(existing, keychain.KeychainAccess(&noopConfigKeychain{}), "prod", "cli_prod", core.SecretInput{}, core.BrandLark, "en_us", core.AuthMethodPrivateKeyJWT, keyRef); err != nil {
+		t.Fatalf("saveAsProfile update private_key_jwt: %v", err)
+	}
+
+	got, err := core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatalf("LoadMultiAppConfig: %v", err)
+	}
+	app := got.FindApp("prod")
+	if app == nil {
+		t.Fatalf("profile prod not saved: %#v", got.Apps)
+	}
+	if app.AuthMethod != core.AuthMethodPrivateKeyJWT {
+		t.Fatalf("AuthMethod = %q, want private_key_jwt", app.AuthMethod)
+	}
+	if app.KeyRef == nil || app.KeyRef.Source != "tee" || app.KeyRef.ID != "lark-cli-default" {
+		t.Fatalf("KeyRef = %#v, want tee/lark-cli-default", app.KeyRef)
+	}
+	if app.AppSecret.Ref != nil || app.AppSecret.Plain != "" {
+		t.Fatalf("private_key_jwt update must stay secretless, AppSecret value %#v", app.AppSecret)
+	}
+	if len(app.Users) != 1 || app.Users[0].UserOpenId != "ou_1" {
+		t.Fatalf("same-app update should preserve users, Users=%#v", app.Users)
+	}
+}
+
 func TestUpdateExistingProfileWithoutSecret_RejectsAppIDChange(t *testing.T) {
 	multi := &core.MultiAppConfig{
 		CurrentApp: "prod",

cmd/config/init.go

@@ -19,6 +19,7 @@ import (
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/i18n"
 	"github.com/larksuite/cli/internal/keychain"
+	"github.com/larksuite/cli/internal/keysigner"
 	"github.com/larksuite/cli/internal/output"
 )
 
@@ -31,6 +32,7 @@ type ConfigInitOptions struct {
 	AppSecretStdin bool   // read app-secret from stdin (avoids process list exposure)
 	Brand          string
 	New            bool
+	PrivateKeyJWT  bool // --private-key-jwt: request private_key_jwt instead of the default client_secret
 
 	Lang         string // raw --lang (string for cobra); normalized to canonical/"" in validateInitLang
 	langExplicit bool   // true when --lang was explicitly passed
@@ -39,6 +41,8 @@ type ConfigInitOptions struct {
 
 	ProfileName string // when set, create/update a named profile instead of replacing Apps[0]
 
+	Restore bool // Restore re-registers the app already in config to recover a lost credential
+
 	// ForceInit overrides the agent-workspace guard. Without it, running
 	// init under OPENCLAW_HOME / HERMES_HOME refuses and points the caller
 	// at config bind — which is what AI agents almost always want. Manual
@@ -81,17 +85,26 @@ if the user explicitly wants a separate app inside the Agent workspace.`,
 	}
 
 	cmd.Flags().BoolVar(&opts.New, "new", false, "create a new app directly (skip mode selection)")
+	cmd.Flags().BoolVar(&opts.PrivateKeyJWT, "private-key-jwt", false, "create a new app with private_key_jwt (signed by a platform key, no app secret)")
 	cmd.Flags().StringVar(&opts.AppID, "app-id", "", "App ID (non-interactive)")
 	cmd.Flags().BoolVar(&opts.AppSecretStdin, "app-secret-stdin", false, "Read App Secret from stdin to avoid process list exposure")
 	cmd.Flags().StringVar(&opts.Brand, "brand", "feishu", "feishu or lark (non-interactive, default feishu)")
 	cmd.Flags().StringVar(&opts.Lang, "lang", "", "language preference (e.g. zh or zh_cn)")
 	cmd.Flags().StringVar(&opts.ProfileName, "name", "", "create or update a named profile (append instead of replace)")
+	cmd.Flags().BoolVar(&opts.Restore, "restore", false, "re-register the app already in config to recover a lost credential (keychain key / app secret); reuses the stored app ID and auth method")
 	cmd.Flags().BoolVar(&opts.ForceInit, "force-init", false, "allow init inside an Agent workspace (OPENCLAW_HOME / HERMES_HOME); use config bind instead unless you really want a separate app")
 	cmdutil.SetRisk(cmd, "write")
 
 	return cmd
 }
 
+func requestedInitAuthMethod(opts *ConfigInitOptions) string {
+	if opts.PrivateKeyJWT {
+		return core.AuthMethodPrivateKeyJWT
+	}
+	return core.AuthMethodClientSecret
+}
+
 // printLangPreferenceConfirmation echoes the set preference to stderr, only
 // when --lang explicitly set a non-empty value.
 func printLangPreferenceConfirmation(opts *ConfigInitOptions) {
@@ -132,7 +145,7 @@ func guardAgentWorkspace(opts *ConfigInitOptions) error {
 
 // hasAnyNonInteractiveFlag returns true if any non-interactive flag is set.
 func (o *ConfigInitOptions) hasAnyNonInteractiveFlag() bool {
-	return o.New || o.AppID != "" || o.AppSecretStdin
+	return o.New || o.Restore || o.AppID != "" || o.AppSecretStdin
 }
 
 // cleanupOldConfig clears keychain entries (AppSecret + UAT) for all apps in existing config except the app whose AppId equals skipAppID.
@@ -151,22 +164,61 @@ func cleanupOldConfig(existing *core.MultiAppConfig, f *cmdutil.Factory, skipApp
 	}
 }
 
+// removeStaleSecretForPKJWT clears a secret left in the keychain when the SAME
+// appId is migrated from client_secret to private_key_jwt. cleanupOldConfig
+// explicitly skips a matching appId, and saveAsProfile only cleans up on an
+// appId change, so a same-appId migration would orphan the old secret. This
+// fills that gap. RemoveSecretStore only deletes Source=="keychain" entries, so
+// the new pkjwt tee key handle is never touched.
+func removeStaleSecretForPKJWT(existing *core.MultiAppConfig, profileName, appID string, kc keychain.KeychainAccess) {
+	if existing == nil {
+		return
+	}
+	var prior *core.AppConfig
+	if profileName != "" {
+		if idx := findProfileIndexByName(existing, profileName); idx >= 0 {
+			prior = &existing.Apps[idx]
+		}
+	} else {
+		prior = existing.CurrentAppConfig("")
+	}
+	if prior != nil && prior.AppId == appID && !prior.AppSecret.IsZero() {
+		core.RemoveSecretStore(prior.AppSecret, kc)
+	}
+}
+
+// keyRefFromResult builds the TEE key reference to persist for a private_key_jwt
+// registration result, or nil for client_secret.
+func keyRefFromResult(r *configInitResult) *core.SecretRef {
+	if r != nil && r.AuthMethod == core.AuthMethodPrivateKeyJWT && r.KeyLabel != "" {
+		return &core.SecretRef{Source: "tee", ID: r.KeyLabel}
+	}
+	return nil
+}
+
 // saveAsOnlyApp overwrites config.json with a single-app config.
-func saveAsOnlyApp(appId string, secret core.SecretInput, brand core.LarkBrand, lang string) error {
+func saveAsOnlyApp(appId string, secret core.SecretInput, brand core.LarkBrand, lang, authMethod string, keyRef *core.SecretRef) error {
 	config := &core.MultiAppConfig{
 		Apps: []core.AppConfig{{
 			AppId: appId, AppSecret: secret, Brand: brand, Lang: i18n.Lang(lang), Users: []core.AppUser{},
+			AuthMethod: authMethod, KeyRef: keyRef,
 		}},
 	}
+	return saveMultiAppConfigForInit(config)
+}
+
+func saveMultiAppConfigForInit(config *core.MultiAppConfig) error {
 	return core.SaveMultiAppConfig(config)
 }
 
 // saveInitConfig saves a new/updated app config, respecting --profile mode.
 // With profileName: appends or updates the named profile (preserves other profiles).
 // Without profileName: cleans up old config and saves as the only app.
-func saveInitConfig(profileName string, existing *core.MultiAppConfig, f *cmdutil.Factory, appId string, secret core.SecretInput, brand core.LarkBrand, lang string) error {
+// authMethod/keyRef carry the credential type: ("", nil) for client_secret,
+// (private_key_jwt, &{tee,label}) for the secretless TEE flow.
+func saveInitConfig(profileName string, existing *core.MultiAppConfig, f *cmdutil.Factory, appId string, secret core.SecretInput, brand core.LarkBrand, lang, authMethod string, keyRef *core.SecretRef) error {
 	if profileName != "" {
-		return saveAsProfile(existing, f.Keychain, profileName, appId, secret, brand, lang)
+		return saveAsProfile(existing, f.Keychain, profileName, appId, secret, brand, lang, authMethod, keyRef)
 	}
 	cleanupOldConfig(existing, f, appId)
 	var prior i18n.Lang
@@ -175,7 +227,7 @@ func saveInitConfig(profileName string, existing *core.MultiAppConfig, f *cmduti
 			prior = app.Lang
 		}
 	}
-	return saveAsOnlyApp(appId, secret, brand, string(preferredLang(i18n.Lang(lang), prior)))
+	return saveAsOnlyApp(appId, secret, brand, string(preferredLang(i18n.Lang(lang), prior)), authMethod, keyRef)
 }
 
 // wrapSaveConfigError passes an already-typed error (e.g. the --name conflict
@@ -195,7 +247,7 @@ func wrapSaveConfigError(err error) error {
 // 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.
-func saveAsProfile(existing *core.MultiAppConfig, kc keychain.KeychainAccess, profileName, appId string, secret core.SecretInput, brand core.LarkBrand, lang string) error {
+func saveAsProfile(existing *core.MultiAppConfig, kc keychain.KeychainAccess, profileName, appId string, secret core.SecretInput, brand core.LarkBrand, lang, authMethod string, keyRef *core.SecretRef) error {
 	multi := existing
 	if multi == nil {
 		multi = &core.MultiAppConfig{}
@@ -214,6 +266,8 @@ func saveAsProfile(existing *core.MultiAppConfig, kc keychain.KeychainAccess, pr
 		multi.Apps[idx].AppSecret = secret
 		multi.Apps[idx].Brand = brand
 		multi.Apps[idx].Lang = preferredLang(i18n.Lang(lang), multi.Apps[idx].Lang)
+		multi.Apps[idx].AuthMethod = authMethod
+		multi.Apps[idx].KeyRef = keyRef
 	} else {
 		if findAppIndexByAppID(multi, profileName) >= 0 {
 			return errs.NewValidationError(errs.SubtypeInvalidArgument,
@@ -222,15 +276,17 @@ func saveAsProfile(existing *core.MultiAppConfig, kc keychain.KeychainAccess, pr
 		}
 		// Append new profile
 		multi.Apps = append(multi.Apps, core.AppConfig{
-			Name:      profileName,
-			AppId:     appId,
-			AppSecret: secret,
-			Brand:     brand,
-			Lang:      i18n.Lang(lang),
-			Users:     []core.AppUser{},
+			Name:       profileName,
+			AppId:      appId,
+			AppSecret:  secret,
+			Brand:      brand,
+			Lang:       i18n.Lang(lang),
+			Users:      []core.AppUser{},
+			AuthMethod: authMethod,
+			KeyRef:     keyRef,
 		})
 	}
-	return core.SaveMultiAppConfig(multi)
+	return saveMultiAppConfigForInit(multi)
 }
 
 func findProfileIndexByName(multi *core.MultiAppConfig, profileName string) int {
@@ -302,12 +358,141 @@ func updateExistingProfileWithoutSecret(existing *core.MultiAppConfig, profileNa
 	app.AppId = appID
 	app.Brand = brand
 	app.Lang = preferredLang(i18n.Lang(lang), app.Lang)
-	return core.SaveMultiAppConfig(existing)
+	return saveMultiAppConfigForInit(existing)
+}
+
+func persistInitResult(opts *ConfigInitOptions, f *cmdutil.Factory, profileName string, result *configInitResult) error {
+	existing, _ := core.LoadMultiAppConfig()
+
+	switch {
+	case result.AuthMethod == core.AuthMethodPrivateKeyJWT:
+		if err := saveInitConfig(profileName, existing, f, result.AppID, core.SecretInput{}, result.Brand, opts.Lang, result.AuthMethod, keyRefFromResult(result)); err != nil {
+			return wrapSaveConfigError(err)
+		}
+		removeStaleSecretForPKJWT(existing, profileName, result.AppID, f.Keychain)
+		return nil
+	case result.AppSecret != "":
+		secret, err := core.ForStorage(result.AppID, core.PlainSecret(result.AppSecret), f.Keychain)
+		if err != nil {
+			return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
+		}
+		if err := saveInitConfig(profileName, existing, f, result.AppID, secret, result.Brand, opts.Lang, "", nil); err != nil {
+			return wrapSaveConfigError(err)
+		}
+		return nil
+	case result.Mode == "existing" && result.AppID != "":
+		return wrapUpdateExistingProfileErr(updateExistingProfileWithoutSecret(existing, profileName, result.AppID, result.Brand, opts.Lang))
+	default:
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "App ID and App Secret cannot be empty").WithParam("--app-id")
+	}
+}
+
+func probeInitResult(opts *ConfigInitOptions, f *cmdutil.Factory, result *configInitResult) error {
+	if result.AuthMethod == core.AuthMethodPrivateKeyJWT {
+		return runProbePKJWT(opts.Ctx, f, result.Brand, result.AppID, keysigner.Active(), result.KeyLabel)
+	}
+	if result.AppSecret != "" {
+		return runProbe(opts.Ctx, f, result.AppID, result.AppSecret, result.Brand)
+	}
+	return nil
+}
+
+// persistAndProbeResult saves a registration/restore result into profileName and
+// runs the post-registration probe. profileName == "" replaces the single app
+// (legacy); a named profile is updated in place. Shared by --new and --restore.
+func persistAndProbeResult(opts *ConfigInitOptions, f *cmdutil.Factory, profileName string, result *configInitResult) error {
+	if err := persistInitResult(opts, f, profileName, result); err != nil {
+		return err
+	}
+	printLangPreferenceConfirmation(opts)
+	if result.AuthMethod == core.AuthMethodPrivateKeyJWT {
+		output.PrintJson(f.IOStreams.Out, map[string]interface{}{"appId": result.AppID, "authMethod": result.AuthMethod, "brand": result.Brand})
+	} else {
+		output.PrintJson(f.IOStreams.Out, map[string]interface{}{"appId": result.AppID, "appSecret": "****", "brand": result.Brand})
+	}
+	return probeInitResult(opts, f, result)
+}
+
+// runRestoreFlow re-registers the app already in config to recover a lost
+// credential (deleted keychain key / lost app secret). It reads the existing
+// app id + auth method + brand from config (no secret needed — that's the lost
+// part) and re-runs the device-flow registration with the app id sent on begin,
+// so the server re-registers that app instead of creating a new one. The
+// re-issued credential is written back to the same profile.
+func runRestoreFlow(opts *ConfigInitOptions, existing *core.MultiAppConfig, f *cmdutil.Factory, msg *initMsg) error {
+	if existing == nil {
+		return errs.NewConfigError(errs.SubtypeNotConfigured, "nothing to restore: no config found").
+			WithHint("run: lark-cli config init")
+	}
+	app := existing.CurrentAppConfig(opts.ProfileName)
+	if app == nil || app.AppId == "" {
+		return errs.NewConfigError(errs.SubtypeNotConfigured, "nothing to restore: no app id in config%s", profileSuffix(opts.ProfileName)).
+			WithHint("run: lark-cli config init")
+	}
+	if app.KeyRef != nil && strings.TrimSpace(app.KeyRef.Provider) != "" {
+		return errs.NewValidationError(errs.SubtypeFailedPrecondition,
+			"config init --restore does not manage external signer provider %q", app.KeyRef.Provider).
+			WithHint("repair the OpenClaw provider with onboarding doctor --fix, then run config bind again")
+	}
+
+	restoreAppID := app.AppId
+	// Reuse the stored auth method authoritatively — never prompt. Empty on disk
+	// means client_secret (omitempty back-compat); pass it explicitly so restore
+	// preserves the existing credential type.
+	authMethod := app.AuthMethod
+	if authMethod == "" {
+		authMethod = core.AuthMethodClientSecret
+	}
+	result, err := runCreateAppFlow(opts.Ctx, f, app.Brand, authMethod, msg, restoreAppID)
+	if err != nil {
+		return err
+	}
+	if result == nil {
+		return errs.NewInternalError(errs.SubtypeSDKError, "app restore returned no result")
+	}
+
+	// Safety: if the server did not honor app_id (e.g. not yet supported), it may
+	// have created a NEW app instead of restoring. Warn so the user is not silently
+	// switched to a different app id.
+	if result.AppID != restoreAppID {
+		fmt.Fprintf(f.IOStreams.ErrOut, "[lark-cli] [WARN] restore: server returned app %s, expected %s — it may have created a new app instead of restoring\n", result.AppID, restoreAppID)
+	}
+
+	// Write back to the profile we restored: an explicit --name, else the resolved
+	// app's own name. Empty name => legacy single-app replace.
+	saveProfile := opts.ProfileName
+	if saveProfile == "" {
+		saveProfile = app.Name
+	}
+	return persistAndProbeResult(opts, f, saveProfile, result)
+}
+
+// profileSuffix renders " (profile %q)" for error messages, or "" when unnamed.
+func profileSuffix(profileName string) string {
+	if profileName == "" {
+		return ""
+	}
+	return fmt.Sprintf(" (profile %q)", profileName)
 }
 
 func configInitRun(opts *ConfigInitOptions) error {
 	f := opts.Factory
-
+	if opts.PrivateKeyJWT {
+		switch {
+		case opts.Restore:
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"--private-key-jwt cannot be combined with --restore; restore preserves the stored auth method").
+				WithParam("--private-key-jwt")
+		case opts.AppID != "":
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"--private-key-jwt cannot be combined with --app-id; use --new to register a private_key_jwt app").
+				WithParam("--private-key-jwt")
+		case opts.AppSecretStdin:
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"--private-key-jwt cannot be combined with --app-secret-stdin; private_key_jwt does not use an app secret").
+				WithParam("--private-key-jwt")
+		}
+	}
 	// Read secret from stdin if --app-secret-stdin is set
 	if opts.AppSecretStdin {
 		scanner := bufio.NewScanner(f.IOStreams.In)
@@ -335,6 +520,26 @@ func configInitRun(opts *ConfigInitOptions) error {
 		}
 	}
 
+	// --restore recovers an existing app; it is incompatible with creating a new
+	// app (--new) or importing one non-interactively (--app-id / stdin secret).
+	if opts.Restore {
+		if opts.New {
+			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--restore cannot be combined with --new").WithParam("--restore")
+		}
+		if opts.AppID != "" || opts.AppSecretStdin {
+			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--restore cannot be combined with --app-id / --app-secret-stdin").WithParam("--restore")
+		}
+	}
+
+	// A user who explicitly asks for private_key_jwt needs immediate feedback
+	// before any interactive prompt. Otherwise unsupported machines enter the
+	// TUI and fail only after the user chooses a create flow.
+	if opts.PrivateKeyJWT && !opts.New && !opts.Restore {
+		if _, err := resolveRegisterAuthMethod(opts.Ctx, f, core.AuthMethodPrivateKeyJWT); err != nil {
+			return err
+		}
+	}
+
 	// Mode 1: Non-interactive
 	if opts.AppID != "" && opts.appSecret != "" {
 		brand := parseBrand(opts.Brand)
@@ -342,7 +547,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 		if err != nil {
 			return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 		}
-		if err := saveInitConfig(opts.ProfileName, existing, f, opts.AppID, secret, brand, opts.Lang); err != nil {
+		if err := saveInitConfig(opts.ProfileName, existing, f, opts.AppID, secret, brand, opts.Lang, "", nil); err != nil {
 			return wrapSaveConfigError(err)
 		}
 		output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Configuration saved to %s", core.GetConfigPath()))
@@ -368,34 +573,26 @@ func configInitRun(opts *ConfigInitOptions) error {
 
 	msg := getInitMsg(opts.UILang)
 
+	// Mode: Restore (--restore) — re-register the app already in config.
+	if opts.Restore {
+		return runRestoreFlow(opts, existing, f, msg)
+	}
+
 	// Mode 3: Create new app directly (--new)
 	if opts.New {
-		result, err := runCreateAppFlow(opts.Ctx, f, parseBrand(opts.Brand), msg)
+		result, err := runCreateAppFlow(opts.Ctx, f, parseBrand(opts.Brand), requestedInitAuthMethod(opts), msg, "")
 		if err != nil {
 			return err
 		}
 		if result == nil {
 			return errs.NewInternalError(errs.SubtypeSDKError, "app creation returned no result")
 		}
-		existing, _ := core.LoadMultiAppConfig()
-		secret, err := core.ForStorage(result.AppID, core.PlainSecret(result.AppSecret), f.Keychain)
-		if err != nil {
-			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 wrapSaveConfigError(err)
-		}
-		printLangPreferenceConfirmation(opts)
-		output.PrintJson(f.IOStreams.Out, map[string]interface{}{"appId": result.AppID, "appSecret": "****", "brand": result.Brand})
-		if err := runProbe(opts.Ctx, f, result.AppID, result.AppSecret, result.Brand); err != nil {
-			return err
-		}
-		return nil
+		return persistAndProbeResult(opts, f, opts.ProfileName, result)
 	}
 
 	// Mode 4: Interactive TUI (terminal)
 	if !opts.hasAnyNonInteractiveFlag() && f.IOStreams.IsTerminal {
-		result, err := runInteractiveConfigInit(opts.Ctx, f, msg)
+		result, err := runInteractiveConfigInit(opts.Ctx, f, requestedInitAuthMethod(opts), msg)
 		if err != nil {
 			return err
 		}
@@ -404,35 +601,21 @@ func configInitRun(opts *ConfigInitOptions) error {
 				WithParam("--app-id")
 		}
 
-		existing, _ := core.LoadMultiAppConfig()
-
-		if result.AppSecret != "" {
-			// New secret provided (either from "create" or "existing" with input)
-			secret, err := core.ForStorage(result.AppID, core.PlainSecret(result.AppSecret), f.Keychain)
-			if err != nil {
-				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 wrapSaveConfigError(err)
-			}
-		} else if result.Mode == "existing" && result.AppID != "" {
-			// Existing app with unchanged secret — update app ID and brand only
-			if err := wrapUpdateExistingProfileErr(updateExistingProfileWithoutSecret(existing, opts.ProfileName, result.AppID, result.Brand, opts.Lang)); err != nil {
+		if err := persistInitResult(opts, f, opts.ProfileName, result); err != nil {
+			return err
+		}
+		if result.AuthMethod == core.AuthMethodPrivateKeyJWT {
+			if err := probeInitResult(opts, f, result); err != nil {
 				return err
 			}
-		} else {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "App ID and App Secret cannot be empty").
-				WithParam("--app-id")
 		}
 
 		if result.Mode == "existing" {
 			output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf(msg.ConfigSaved, result.AppID))
 		}
 		printLangPreferenceConfirmation(opts)
-		if result.AppSecret != "" {
-			if err := runProbe(opts.Ctx, f, result.AppID, result.AppSecret, result.Brand); err != nil {
-				return err
-			}
+		if result.AuthMethod != core.AuthMethodPrivateKeyJWT {
+			return probeInitResult(opts, f, result)
 		}
 		return nil
 	}
@@ -517,7 +700,7 @@ func configInitRun(opts *ConfigInitOptions) error {
 	if err != nil {
 		return errs.NewInternalError(errs.SubtypeSDKError, "%v", err).WithCause(err)
 	}
-	if err := saveInitConfig(opts.ProfileName, existing, f, resolvedAppId, storedSecret, parseBrand(resolvedBrand), opts.Lang); err != nil {
+	if err := saveInitConfig(opts.ProfileName, existing, f, resolvedAppId, storedSecret, parseBrand(resolvedBrand), opts.Lang, "", nil); err != nil {
 		return wrapSaveConfigError(err)
 	}
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf("Configuration saved to %s", core.GetConfigPath()))

cmd/config/init_auth_method_test.go

@@ -0,0 +1,306 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"context"
+	"crypto"
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+type authMethodTestSigner struct {
+	info     keysigner.HardwareInfo
+	probeErr error
+}
+
+func (authMethodTestSigner) EnsureKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return nil, nil
+}
+
+func (authMethodTestSigner) PublicKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return nil, nil
+}
+
+func (authMethodTestSigner) Sign(context.Context, keysigner.KeyRef, []byte) ([]byte, string, error) {
+	return nil, "", nil
+}
+
+func (s authMethodTestSigner) ProbeHardware(context.Context) (keysigner.HardwareInfo, error) {
+	return s.info, s.probeErr
+}
+
+// TestResolveRegisterAuthMethod covers the non-interactive gating paths. The
+// darwin keychain signer is compiled into every build, so the test cannot rely
+// on the binary lacking a signer — it forces a known no-signer state for the
+// rejection cases, then registers a stub for the success case.
+func TestResolveRegisterAuthMethod(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f := &cmdutil.Factory{}
+	ctx := context.Background()
+
+	prevSigner := keysigner.Active()
+	t.Cleanup(func() { keysigner.Register(prevSigner) })
+	keysigner.Register(nil)
+
+	if m, err := resolveRegisterAuthMethod(ctx, f, core.AuthMethodClientSecret); err != nil || m != core.AuthMethodClientSecret {
+		t.Errorf("client_secret: got (%q, %v), want (client_secret, nil)", m, err)
+	}
+
+	if m, err := resolveRegisterAuthMethod(ctx, f, ""); err != nil || m != core.AuthMethodClientSecret {
+		t.Errorf("default: got (%q, %v), want (client_secret, nil)", m, err)
+	}
+
+	if _, err := resolveRegisterAuthMethod(ctx, f, "bogus"); err == nil {
+		t.Error("bogus auth-method: expected error")
+	}
+
+	if _, err := resolveRegisterAuthMethod(ctx, f, core.AuthMethodPrivateKeyJWT); err == nil {
+		t.Error("private_key_jwt without a signer: expected error")
+	}
+
+	keysigner.Register(authMethodTestSigner{info: keysigner.HardwareInfo{Backend: "tpm2", Available: true}})
+
+	if m, err := resolveRegisterAuthMethod(ctx, f, core.AuthMethodPrivateKeyJWT); err != nil || m != core.AuthMethodPrivateKeyJWT {
+		t.Errorf("private_key_jwt with signer: got (%q, %v), want (private_key_jwt, nil)", m, err)
+	}
+
+	f.IOStreams = &cmdutil.IOStreams{IsTerminal: true}
+	if m, err := resolveRegisterAuthMethod(ctx, f, ""); err != nil || m != core.AuthMethodClientSecret {
+		t.Errorf("default with terminal signer: got (%q, %v), want (client_secret, nil)", m, err)
+	}
+}
+
+func TestConfigInitRunRejectsPrivateKeyJWTIncompatibleModes(t *testing.T) {
+	tests := []struct {
+		name       string
+		configure  func(*ConfigInitOptions, *cmdutil.Factory)
+		wantTarget string
+	}{
+		{
+			name: "app id import",
+			configure: func(opts *ConfigInitOptions, _ *cmdutil.Factory) {
+				opts.AppID = "cli_test"
+			},
+			wantTarget: "--app-id",
+		},
+		{
+			name: "app secret stdin import",
+			configure: func(opts *ConfigInitOptions, f *cmdutil.Factory) {
+				opts.AppSecretStdin = true
+				f.IOStreams.In = strings.NewReader("secret\n")
+			},
+			wantTarget: "--app-secret-stdin",
+		},
+		{
+			name: "restore",
+			configure: func(opts *ConfigInitOptions, _ *cmdutil.Factory) {
+				opts.Restore = true
+			},
+			wantTarget: "--restore",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+			f, _, _, _ := cmdutil.TestFactory(t, nil)
+			opts := &ConfigInitOptions{
+				Factory:       f,
+				Ctx:           context.Background(),
+				PrivateKeyJWT: true,
+			}
+			tc.configure(opts, f)
+
+			err := configInitRun(opts)
+			if err == nil {
+				t.Fatal("expected incompatible mode error")
+			}
+			problem, ok := errs.ProblemOf(err)
+			if !ok {
+				t.Fatalf("error is not typed: %T %[1]v", err)
+			}
+			if problem.Category != errs.CategoryValidation || problem.Subtype != errs.SubtypeInvalidArgument {
+				t.Fatalf("problem = %s/%s, want validation/invalid_argument", problem.Category, problem.Subtype)
+			}
+			var validationErr *errs.ValidationError
+			if !errors.As(err, &validationErr) {
+				t.Fatalf("error = %T, want *errs.ValidationError", err)
+			}
+			if validationErr.Param != "--private-key-jwt" {
+				t.Fatalf("param = %q, want --private-key-jwt", validationErr.Param)
+			}
+			if !strings.Contains(problem.Message, tc.wantTarget) {
+				t.Fatalf("message = %q, want %s", problem.Message, tc.wantTarget)
+			}
+		})
+	}
+}
+
+func TestResolveRegisterAuthMethod_PrivateKeyJWTRejectsUnavailableHardware(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	prevSigner := keysigner.Active()
+	t.Cleanup(func() { keysigner.Register(prevSigner) })
+	keysigner.Register(authMethodTestSigner{info: keysigner.HardwareInfo{
+		Backend: "tpm2",
+		Reason:  "open /dev/tpmrm0: permission denied",
+	}})
+
+	_, err := resolveRegisterAuthMethod(context.Background(), &cmdutil.Factory{}, core.AuthMethodPrivateKeyJWT)
+	if err == nil {
+		t.Fatal("private_key_jwt with unavailable signer hardware: expected error")
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("error is not typed: %T %[1]v", err)
+	}
+	if problem.Category != errs.CategoryConfig || problem.Subtype != errs.SubtypeInvalidClient {
+		t.Fatalf("problem = %s/%s, want config/invalid_client", problem.Category, problem.Subtype)
+	}
+	wantMessage := "this machine does not support --private-key-jwt"
+	if problem.Message != wantMessage {
+		t.Fatalf("message = %q, want %q", problem.Message, wantMessage)
+	}
+	if strings.Contains(problem.Message, "sks") || strings.Contains(problem.Message, "/dev/tpm") || strings.Contains(problem.Message, "tpm") || strings.Contains(problem.Message, "TEE") || strings.Contains(problem.Message, "Keychain") {
+		t.Fatalf("message exposes backend detail: %q", problem.Message)
+	}
+	if !strings.Contains(problem.Hint, "omit --private-key-jwt") {
+		t.Fatalf("hint = %q, want guidance to omit --private-key-jwt", problem.Hint)
+	}
+	if strings.Contains(problem.Hint, "fix the local signer") {
+		t.Fatalf("hint exposes unnecessary signer recovery: %q", problem.Hint)
+	}
+}
+
+func TestResolveRegisterAuthMethod_PrivateKeyJWTRejectsProbeError(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	probeErr := errors.New("probe exploded")
+	prevSigner := keysigner.Active()
+	t.Cleanup(func() { keysigner.Register(prevSigner) })
+	keysigner.Register(authMethodTestSigner{
+		info:     keysigner.HardwareInfo{Backend: "keychain"},
+		probeErr: probeErr,
+	})
+
+	_, err := resolveRegisterAuthMethod(context.Background(), &cmdutil.Factory{}, core.AuthMethodPrivateKeyJWT)
+	if err == nil {
+		t.Fatal("private_key_jwt with probe error: expected error")
+	}
+	if !errors.Is(err, probeErr) {
+		t.Fatalf("error does not preserve probe cause: %v", err)
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("error is not typed: %T %[1]v", err)
+	}
+	if problem.Category != errs.CategoryConfig || problem.Subtype != errs.SubtypeInvalidClient {
+		t.Fatalf("problem = %s/%s, want config/invalid_client", problem.Category, problem.Subtype)
+	}
+	wantMessage := "this machine does not support --private-key-jwt"
+	if problem.Message != wantMessage {
+		t.Fatalf("message = %q, want %q", problem.Message, wantMessage)
+	}
+	if strings.Contains(problem.Message, "probe") || strings.Contains(problem.Message, "keychain signer") {
+		t.Fatalf("message exposes probe detail: %q", problem.Message)
+	}
+	if !strings.Contains(problem.Hint, "omit --private-key-jwt") {
+		t.Fatalf("hint = %q, want guidance to omit --private-key-jwt", problem.Hint)
+	}
+	if strings.Contains(problem.Hint, "fix the local signer") {
+		t.Fatalf("hint exposes unnecessary signer recovery: %q", problem.Hint)
+	}
+}
+
+func TestConfigInitRun_PrivateKeyJWTRejectsBeforeInteractiveMode(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	prevSigner := keysigner.Active()
+	t.Cleanup(func() { keysigner.Register(prevSigner) })
+	keysigner.Register(authMethodTestSigner{info: keysigner.HardwareInfo{
+		Backend: "tpm2",
+		Reason:  "not available",
+	}})
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	f.IOStreams.IsTerminal = true
+	opts := &ConfigInitOptions{
+		Factory:       f,
+		Ctx:           context.Background(),
+		PrivateKeyJWT: true,
+		Lang:          "zh_cn",
+		UILang:        "zh_cn",
+	}
+
+	err := configInitRun(opts)
+	if err == nil {
+		t.Fatal("config init --private-key-jwt on unsupported machine: expected error before interactive mode")
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("error is not typed: %T %[1]v", err)
+	}
+	if problem.Category != errs.CategoryConfig || problem.Subtype != errs.SubtypeInvalidClient {
+		t.Fatalf("problem = %s/%s, want config/invalid_client", problem.Category, problem.Subtype)
+	}
+	if problem.Message != "this machine does not support --private-key-jwt" {
+		t.Fatalf("message = %q", problem.Message)
+	}
+}
+
+func TestExistingAppRequiresSecret(t *testing.T) {
+	if !existingAppRequiresSecret(core.AuthMethodClientSecret) {
+		t.Error("client_secret existing app should require App Secret")
+	}
+	if existingAppRequiresSecret("") != true {
+		t.Error("default existing app should require App Secret")
+	}
+	if existingAppRequiresSecret(core.AuthMethodPrivateKeyJWT) {
+		t.Error("private_key_jwt existing app should not require App Secret")
+	}
+}
+
+// TestValidatePKJWTKeyBinding covers the guard that rejects a registration
+// resolving to private_key_jwt with no signing key bound (e.g. an existing
+// secret-based app was selected on the confirm page).
+func TestValidatePKJWTKeyBinding(t *testing.T) {
+	if err := validatePKJWTKeyBinding(core.AuthMethodPrivateKeyJWT, ""); err == nil {
+		t.Error("pkjwt with empty keyLabel: expected error")
+	}
+	if err := validatePKJWTKeyBinding(core.AuthMethodPrivateKeyJWT, "agent-key"); err != nil {
+		t.Errorf("pkjwt with keyLabel: expected nil, got %v", err)
+	}
+	if err := validatePKJWTKeyBinding(core.AuthMethodClientSecret, ""); err != nil {
+		t.Errorf("client_secret: expected nil, got %v", err)
+	}
+}
+
+// TestResolveFinalAuthMethod locks the authoritative-method logic. The 2nd case
+// is the real bug: we requested private_key_jwt but the server resolved to an
+// existing client_secret app — we must persist client_secret, not pkjwt.
+func TestResolveFinalAuthMethod(t *testing.T) {
+	if m := resolveFinalAuthMethod([]string{"client_secret", "private_key_jwt"}, core.AuthMethodClientSecret); m != core.AuthMethodPrivateKeyJWT {
+		t.Errorf("prefers private_key_jwt: got %q", m)
+	}
+	if m := resolveFinalAuthMethod([]string{"client_secret"}, core.AuthMethodPrivateKeyJWT); m != core.AuthMethodClientSecret {
+		t.Errorf("server client_secret must override requested pkjwt: got %q", m)
+	}
+	if m := resolveFinalAuthMethod(nil, core.AuthMethodPrivateKeyJWT); m != core.AuthMethodPrivateKeyJWT {
+		t.Errorf("fallback to requested when server is silent: got %q", m)
+	}
+	// Explicit empty slice (not just nil) also falls back to requested — the same
+	// len()==0 back-compat allowance the init guard relies on to let private_key_jwt
+	// proceed against an older server (see internal/auth
+	// TestRequestAppRegistrationInit_EmptySupportedAuthMethods).
+	if m := resolveFinalAuthMethod([]string{}, core.AuthMethodPrivateKeyJWT); m != core.AuthMethodPrivateKeyJWT {
+		t.Errorf("empty []string should fall back to requested private_key_jwt: got %q", m)
+	}
+	if m := resolveFinalAuthMethod(nil, ""); m != core.AuthMethodClientSecret {
+		t.Errorf("default to client_secret: got %q", m)
+	}
+}

cmd/config/init_interactive.go

@@ -5,7 +5,12 @@ package config
 
 import (
 	"context"
+	"errors"
 	"fmt"
+	"net"
+	"slices"
+	"strings"
+	"time"
 
 	"github.com/charmbracelet/huh"
 	"github.com/larksuite/cli/internal/build"
@@ -13,22 +18,26 @@ import (
 
 	"github.com/larksuite/cli/errs"
 	larkauth "github.com/larksuite/cli/internal/auth"
+	"github.com/larksuite/cli/internal/auth/jwt"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keysigner"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/transport"
 )
 
 // configInitResult holds the result of the interactive config init flow.
 type configInitResult struct {
-	Mode      string // "create" or "existing"
-	Brand     core.LarkBrand
-	AppID     string
-	AppSecret string
+	Mode       string // "create" or "existing"
+	Brand      core.LarkBrand
+	AppID      string
+	AppSecret  string
+	AuthMethod string // "" == client_secret; core.AuthMethodPrivateKeyJWT
+	KeyLabel   string // TEE key handle when AuthMethod == private_key_jwt
 }
 
 // runInteractiveConfigInit shows an interactive TUI for config init.
-func runInteractiveConfigInit(ctx context.Context, f *cmdutil.Factory, msg *initMsg) (*configInitResult, error) {
+func runInteractiveConfigInit(ctx context.Context, f *cmdutil.Factory, authMethodFlag string, msg *initMsg) (*configInitResult, error) {
 	// Phase 1: Choose mode
 	var mode string
 	form1 := huh.NewForm(
@@ -51,14 +60,18 @@ func runInteractiveConfigInit(ctx context.Context, f *cmdutil.Factory, msg *init
 	}
 
 	if mode == "existing" {
-		return runExistingAppForm(f, msg)
+		return runExistingAppForm(ctx, f, authMethodFlag, msg)
 	}
 
-	return runCreateAppFlow(ctx, f, "", msg)
+	return runCreateAppFlow(ctx, f, "", authMethodFlag, msg, "")
+}
+
+func existingAppRequiresSecret(requestedAuthMethod string) bool {
+	return requestedAuthMethod != core.AuthMethodPrivateKeyJWT
 }
 
 // runExistingAppForm shows a huh form for manually entering App ID / App Secret / Brand.
-func runExistingAppForm(f *cmdutil.Factory, msg *initMsg) (*configInitResult, error) {
+func runExistingAppForm(ctx context.Context, f *cmdutil.Factory, requestedAuthMethod string, msg *initMsg) (*configInitResult, error) {
 	// Load existing config for defaults
 	existing, _ := core.LoadMultiAppConfig()
 	var firstApp *core.AppConfig
@@ -92,19 +105,31 @@ func runExistingAppForm(f *cmdutil.Factory, msg *initMsg) (*configInitResult, er
 		brand = string(firstApp.Brand)
 	}
 
-	form := huh.NewForm(
-		huh.NewGroup(
-			appIDInput,
-			appSecretInput,
-			huh.NewSelect[string]().
-				Title(msg.Platform).
-				Options(
-					huh.NewOption(msg.Feishu, "feishu"),
-					huh.NewOption("Lark", "lark"),
-				).
-				Value(&brand),
-		),
-	).WithTheme(cmdutil.ThemeFeishu())
+	brandSelect := huh.NewSelect[string]().
+		Title(msg.Platform).
+		Options(
+			huh.NewOption(msg.Feishu, "feishu"),
+			huh.NewOption("Lark", "lark"),
+		).
+		Value(&brand)
+
+	var form *huh.Form
+	if existingAppRequiresSecret(requestedAuthMethod) {
+		form = huh.NewForm(
+			huh.NewGroup(
+				appIDInput,
+				appSecretInput,
+				brandSelect,
+			),
+		).WithTheme(cmdutil.ThemeFeishu())
+	} else {
+		form = huh.NewForm(
+			huh.NewGroup(
+				appIDInput,
+				brandSelect,
+			),
+		).WithTheme(cmdutil.ThemeFeishu())
+	}
 
 	if err := form.Run(); err != nil {
 		if err == huh.ErrUserAborted {
@@ -117,6 +142,13 @@ func runExistingAppForm(f *cmdutil.Factory, msg *initMsg) (*configInitResult, er
 	if appID == "" && firstApp != nil {
 		appID = firstApp.AppId
 	}
+	if !existingAppRequiresSecret(requestedAuthMethod) {
+		if appID == "" {
+			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument, "App ID cannot be empty").
+				WithParam("--app-id")
+		}
+		return runCreateAppFlow(ctx, f, parseBrand(brand), core.AuthMethodPrivateKeyJWT, msg, appID)
+	}
 	if appSecret == "" && firstApp != nil && !firstApp.AppSecret.IsZero() {
 		// Keep existing secret - caller will handle
 		return &configInitResult{
@@ -146,9 +178,49 @@ func runExistingAppForm(f *cmdutil.Factory, msg *initMsg) (*configInitResult, er
 	}, nil
 }
 
+// resolveRegisterAuthMethod decides the auth method for a new-app registration.
+// An explicit private_key_jwt request wins; otherwise the default is
+// client_secret with no extra prompt.
+func resolveRegisterAuthMethod(ctx context.Context, _ *cmdutil.Factory, requested string) (string, error) {
+	const pkjwtUnsupportedMessage = "this machine does not support --private-key-jwt"
+
+	switch requested {
+	case core.AuthMethodPrivateKeyJWT:
+		info, ok, err := keysigner.ProbeActiveHardware(ctx)
+		if !ok {
+			return "", errs.NewConfigError(errs.SubtypeInvalidClient,
+				pkjwtUnsupportedMessage).
+				WithHint("omit --private-key-jwt to register with an app secret")
+		}
+		if err != nil {
+			return "", errs.NewConfigError(errs.SubtypeInvalidClient,
+				pkjwtUnsupportedMessage).
+				WithCause(err).
+				WithHint("omit --private-key-jwt to register with an app secret")
+		}
+		if !info.Available {
+			return "", errs.NewConfigError(errs.SubtypeInvalidClient,
+				pkjwtUnsupportedMessage).
+				WithHint("omit --private-key-jwt to register with an app secret")
+		}
+		return core.AuthMethodPrivateKeyJWT, nil
+	case core.AuthMethodClientSecret:
+		return core.AuthMethodClientSecret, nil
+	case "":
+		return core.AuthMethodClientSecret, nil
+	default:
+		return "", errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"unknown auth method %q (use client_secret or private_key_jwt)", requested)
+	}
+}
+
 // runCreateAppFlow runs the "create new app" flow via OpenClaw device flow.
 // If brandOverride is non-empty, skip the interactive brand selection.
-func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride core.LarkBrand, msg *initMsg) (*configInitResult, error) {
+// requestedAuthMethod is the requested auth method; empty means client_secret.
+// restoreAppID, when non-empty, is sent on the registration begin request so the
+// server re-registers that existing app (credential recovery) instead of creating
+// a new one. Empty preserves the normal new-app flow.
+func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride core.LarkBrand, requestedAuthMethod string, msg *initMsg, restoreAppID string) (*configInitResult, error) {
 	var larkBrand core.LarkBrand
 	if brandOverride != "" {
 		larkBrand = brandOverride
@@ -176,17 +248,57 @@ func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride cor
 		larkBrand = parseBrand(brand)
 	}
 
-	// Step 1: Request app registration (begin)
+	authMethod, err := resolveRegisterAuthMethod(ctx, f, requestedAuthMethod)
+	if err != nil {
+		return nil, err
+	}
+
+	// Step 1: Request app registration (begin).
 	// Use the shared proxy-plugin-aware transport so registration traffic is not
 	// a bypass of proxy plugin mode.
 	httpClient := transport.NewHTTPClient(0)
-	authResp, err := larkauth.RequestAppRegistration(httpClient, larkBrand, f.IOStreams.ErrOut)
+
+	// For private_key_jwt: init to obtain a nonce, then sign a TEE attestation
+	// (carrying the public key in its jwk header) to send with begin.
+	beginOpts := larkauth.AppRegistrationBeginOptions{}
+	keyLabel := ""
+	if authMethod == core.AuthMethodPrivateKeyJWT {
+		initResp, initErr := larkauth.RequestAppRegistrationInit(ctx, httpClient)
+		if initErr != nil {
+			return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration init failed: %v", initErr).WithCause(initErr)
+		}
+		// An empty SupportedAuthMethods is intentionally treated as "older server /
+		// unknown": len()==0 makes this guard false, so the requested
+		// private_key_jwt proceeds. This mirrors resolveFinalAuthMethod's
+		// back-compat fallback to the requested method. Only an explicit list that
+		// omits private_key_jwt rejects here.
+		if len(initResp.SupportedAuthMethods) > 0 && !slices.Contains(initResp.SupportedAuthMethods, core.AuthMethodPrivateKeyJWT) {
+			return nil, errs.NewConfigError(errs.SubtypeInvalidClient,
+				"server does not support private_key_jwt for this app type (supported: %s)", strings.Join(initResp.SupportedAuthMethods, ", ")).
+				WithHint("omit --private-key-jwt to register with an app secret instead")
+		}
+		keyLabel = keysigner.DefaultKeyLabel
+		signer := keysigner.Active() // non-nil, guaranteed by resolveRegisterAuthMethod
+		attestation, signErr := jwt.SignAttestation(ctx, signer, keysigner.KeyRef{Label: keyLabel}, initResp.Nonce, time.Now())
+		if signErr != nil {
+			return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "failed to sign registration attestation: %v", signErr).WithCause(signErr)
+		}
+		beginOpts = larkauth.AppRegistrationBeginOptions{
+			AuthMethod:      core.AuthMethodPrivateKeyJWT,
+			AuthAttestation: attestation,
+		}
+	}
+
+	// Restore flow: re-register the existing app instead of creating a new one.
+	beginOpts.RestoreAppID = restoreAppID
+
+	authResp, err := larkauth.RequestAppRegistration(ctx, httpClient, larkBrand, beginOpts, f.IOStreams.ErrOut)
 	if err != nil {
-		return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration failed: %v", err).WithCause(err)
+		return nil, classifyRegistrationBeginError(err)
 	}
 
 	// Step 2: Build and display verification URL + QR code
-	verificationURL := larkauth.BuildVerificationURL(authResp.VerificationUriComplete, build.Version)
+	verificationURL := larkauth.BuildVerificationURL(authResp.VerificationUriComplete, build.Version, restoreAppID)
 
 	// Branch on TTY: human-friendly copy in interactive terminals,
 	// preserve original copy for AI / non-interactive callers.
@@ -208,40 +320,123 @@ func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride cor
 		fmt.Fprintf(f.IOStreams.ErrOut, "  %s\n\n", verificationURL)
 		fmt.Fprintf(f.IOStreams.ErrOut, "%s\n", msg.WaitingForScanNonTTY)
 	}
-	result, err := larkauth.PollAppRegistration(ctx, httpClient, core.BrandFeishu, authResp.DeviceCode, authResp.Interval, authResp.ExpiresIn, f.IOStreams.ErrOut)
+	// Step 4: Poll for credentials (brand discovery lives in internal/auth);
+	// this layer only classifies the terminal error and saves the result.
+	result, finalBrand, err := larkauth.RegisterAppWithDiscovery(ctx, httpClient, authResp, f.IOStreams.ErrOut)
 	if err != nil {
-		return nil, errs.NewAuthenticationError(errs.SubtypeUnknown, "%v", err).WithCause(err)
+		return nil, classifyRegistrationError(err)
 	}
 
-	// Step 4: Handle Lark brand special case
-	// If tenant_brand=lark and no client_secret, retry with lark brand endpoint
-	if result.ClientSecret == "" && result.UserInfo != nil && result.UserInfo.TenantBrand == "lark" {
-		// fmt.Fprintf(f.IOStreams.ErrOut, "%s\n", msg.DetectedLarkTenant)
-		result, err = larkauth.PollAppRegistration(ctx, httpClient, core.BrandLark, authResp.DeviceCode, authResp.Interval, authResp.ExpiresIn, f.IOStreams.ErrOut)
-		if err != nil {
-			return nil, errs.NewNetworkError(errs.SubtypeNetworkTransport, "lark endpoint retry failed: %v", err).WithCause(err)
-		}
+	// The final auth method is decided by the user/admin at confirmation and
+	// returned by poll — NOT necessarily what we requested. Selecting an existing
+	// client_secret app, for example, yields client_secret even though we sent
+	// private_key_jwt. Trust the result so we persist the truth.
+	finalMethod := resolveFinalAuthMethod(result.AuthMethods, authMethod)
+
+	if result.ClientID == "" {
+		return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration succeeded but missing app_id")
+	}
+	if finalMethod != core.AuthMethodPrivateKeyJWT && result.ClientSecret == "" {
+		return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration succeeded but missing client_secret")
 	}
 
-	if result.ClientID == "" || result.ClientSecret == "" {
-		return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration succeeded but missing client_id or client_secret")
+	// Surface a downgrade: requested private_key_jwt but the app resolved to a
+	// secret-based method (e.g. an existing app was selected). The key was NOT
+	// bound, so we must store the secret method, not private_key_jwt.
+	if authMethod == core.AuthMethodPrivateKeyJWT && finalMethod != core.AuthMethodPrivateKeyJWT {
+		fmt.Fprintf(f.IOStreams.ErrOut, "[lark-cli] note: requested private_key_jwt, but the app uses %q (e.g. an existing app was selected); storing %q.\n", finalMethod, finalMethod)
 	}
-
-	// Determine final brand from response
-	finalBrand := larkBrand
-	if result.UserInfo != nil && result.UserInfo.TenantBrand == "lark" {
-		finalBrand = core.BrandLark
-	} else if result.UserInfo != nil && result.UserInfo.TenantBrand == "feishu" {
-		finalBrand = core.BrandFeishu
-	}
-
 	fmt.Fprintln(f.IOStreams.ErrOut)
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf(msg.AppCreated, result.ClientID))
 
+	keyToStore := ""
+	if finalMethod == core.AuthMethodPrivateKeyJWT {
+		keyToStore = keyLabel
+	}
+	if err := validatePKJWTKeyBinding(finalMethod, keyToStore); err != nil {
+		return nil, err
+	}
 	return &configInitResult{
-		Mode:      "create",
-		Brand:     finalBrand,
-		AppID:     result.ClientID,
-		AppSecret: result.ClientSecret,
+		Mode:       "create",
+		Brand:      finalBrand,
+		AppID:      result.ClientID,
+		AppSecret:  result.ClientSecret, // empty for private_key_jwt; real secret otherwise
+		AuthMethod: finalMethod,
+		KeyLabel:   keyToStore,
 	}, nil
 }
+
+// classifyRegistrationBeginError keeps transport/cancellation failures out of
+// the invalid-client category: the begin request sends no app credentials.
+func classifyRegistrationBeginError(err error) error {
+	switch {
+	case errors.Is(err, context.Canceled):
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "app registration cancelled").WithCause(err)
+	case errors.Is(err, context.DeadlineExceeded):
+		return errs.NewNetworkError(errs.SubtypeNetworkTimeout, "app registration begin timed out: %v", err).WithCause(err)
+	}
+	var netErr net.Error
+	if errors.As(err, &netErr) {
+		subtype := errs.SubtypeNetworkTransport
+		if netErr.Timeout() {
+			subtype = errs.SubtypeNetworkTimeout
+		}
+		return errs.NewNetworkError(subtype, "app registration begin failed: %v", err).WithCause(err)
+	}
+	return errs.NewAPIError(errs.SubtypeUnknown, "app registration begin failed: %v", err).WithCause(err)
+}
+
+// classifyRegistrationError maps registration terminal outcomes to typed
+// errors, preserving causes.
+func classifyRegistrationError(err error) error {
+	switch {
+	case errors.Is(err, larkauth.ErrRegistrationDenied):
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "%v", err).
+			WithHint("re-run `lark-cli config init --new` and approve the authorization request").
+			WithCause(err)
+	case errors.Is(err, larkauth.ErrRegistrationExpired), errors.Is(err, larkauth.ErrRegistrationTimedOut):
+		return errs.NewAuthenticationError(errs.SubtypeTokenExpired, "%v", err).
+			WithHint("re-run `lark-cli config init --new` and complete the scan before the code expires").
+			WithCause(err)
+	default:
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "app registration failed: %v", err).WithCause(err)
+	}
+}
+
+// validatePKJWTKeyBinding rejects a registration that resolved to
+// private_key_jwt without a signing key bound to it. keyLabel is non-empty only
+// when the local flow chose private_key_jwt and signed a TEE attestation; a
+// resolved method of private_key_jwt with no key handle would save an unusable
+// config (rejected later at config load, surfacing as "saved OK, fails on first
+// use"), so it is caught here at registration time instead.
+func validatePKJWTKeyBinding(finalMethod, keyLabel string) error {
+	if finalMethod == core.AuthMethodPrivateKeyJWT && keyLabel == "" {
+		return errs.NewConfigError(errs.SubtypeInvalidClient,
+			"registration resolved to private_key_jwt but no signing key was bound to this app (an existing secret-based app may have been selected)").
+			WithHint("re-register with: lark-cli config init --new --private-key-jwt")
+	}
+	return nil
+}
+
+// resolveFinalAuthMethod picks the authoritative method from the poll result,
+// preferring private_key_jwt, then client_secret. It falls back to the requested
+// method when the server returns nothing (older servers).
+func resolveFinalAuthMethod(serverMethods []string, requested string) string {
+	if len(serverMethods) == 0 {
+		if requested == "" {
+			return core.AuthMethodClientSecret
+		}
+		return requested
+	}
+	for _, m := range serverMethods {
+		if m == core.AuthMethodPrivateKeyJWT {
+			return core.AuthMethodPrivateKeyJWT
+		}
+	}
+	for _, m := range serverMethods {
+		if m == core.AuthMethodClientSecret {
+			return core.AuthMethodClientSecret
+		}
+	}
+	return serverMethods[0]
+}

cmd/config/init_interactive_test.go

@@ -0,0 +1,70 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"context"
+	"errors"
+	"net"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	larkauth "github.com/larksuite/cli/internal/auth"
+)
+
+func assertRegistrationProblem(t *testing.T, got, cause error, category errs.Category, subtype errs.Subtype) *errs.Problem {
+	t.Helper()
+	p, ok := errs.ProblemOf(got)
+	if !ok {
+		t.Fatalf("error %T is not typed: %v", got, got)
+	}
+	if p.Category != category || p.Subtype != subtype {
+		t.Errorf("problem = (%q, %q), want (%q, %q)", p.Category, p.Subtype, category, subtype)
+	}
+	if !errors.Is(got, cause) {
+		t.Errorf("error %v does not preserve cause %v", got, cause)
+	}
+	return p
+}
+
+func TestClassifyRegistrationBeginError(t *testing.T) {
+	tests := []struct {
+		name     string
+		err      error
+		category errs.Category
+		subtype  errs.Subtype
+	}{
+		{"cancelled", context.Canceled, errs.CategoryAuthentication, errs.SubtypeUnknown},
+		{"deadline", context.DeadlineExceeded, errs.CategoryNetwork, errs.SubtypeNetworkTimeout},
+		{"transport", &net.DNSError{Err: "lookup failed", Name: "accounts.example"}, errs.CategoryNetwork, errs.SubtypeNetworkTransport},
+		{"response", errors.New("response not JSON"), errs.CategoryAPI, errs.SubtypeUnknown},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			assertRegistrationProblem(t, classifyRegistrationBeginError(tt.err), tt.err, tt.category, tt.subtype)
+		})
+	}
+}
+
+func TestClassifyRegistrationError(t *testing.T) {
+	tests := []struct {
+		name    string
+		err     error
+		subtype errs.Subtype
+		hint    bool
+	}{
+		{"denied", larkauth.ErrRegistrationDenied, errs.SubtypeUnknown, true},
+		{"expired", larkauth.ErrRegistrationExpired, errs.SubtypeTokenExpired, true},
+		{"timed-out", larkauth.ErrRegistrationTimedOut, errs.SubtypeTokenExpired, true},
+		{"cancelled", context.Canceled, errs.SubtypeUnknown, false},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			p := assertRegistrationProblem(t, classifyRegistrationError(tt.err), tt.err, errs.CategoryAuthentication, tt.subtype)
+			if (p.Hint != "") != tt.hint {
+				t.Errorf("hint = %q, want non-empty=%v", p.Hint, tt.hint)
+			}
+		})
+	}
+}

cmd/config/init_probe.go

@@ -16,6 +16,7 @@ import (
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/credential"
+	"github.com/larksuite/cli/internal/keysigner"
 )
 
 // probeTimeout is the total wall-clock budget for the credential probe step
@@ -90,3 +91,35 @@ func runProbe(parent context.Context, factory *cmdutil.Factory, appID, appSecret
 	_, _ = io.Copy(io.Discard, resp.Body)
 	return nil
 }
+
+// runProbePKJWT does a best-effort key-binding validation after a private_key_jwt
+// config is saved: it signs a client_assertion with the local platform key and
+// mints a token. A typed error (a deterministic server rejection — e.g. the key
+// is not bound to this app) is propagated so `config init` exits non-zero with
+// the canonical envelope; untyped errors (transport / HTTP / parse / timeout)
+// are swallowed (return nil). The mint itself is the probe — no second call.
+func runProbePKJWT(parent context.Context, factory *cmdutil.Factory, brand core.LarkBrand, clientID string, signer keysigner.Signer, keyLabel string) error {
+	if factory == nil {
+		return nil
+	}
+	if signer == nil {
+		return nil
+	}
+	httpClient, err := factory.HttpClient()
+	if err != nil {
+		return nil
+	}
+
+	ctx, cancel := context.WithTimeout(parent, probeTimeout)
+	defer cancel()
+
+	if _, err := credential.FetchTATWithAssertion(ctx, httpClient, brand, clientID, signer, keyLabel); err != nil {
+		// Typed = deterministic credential rejection → propagate. Untyped
+		// (transport / HTTP / parse / timeout) is ambiguous → stay silent.
+		if errs.IsTyped(err) {
+			return err
+		}
+		return nil
+	}
+	return nil
+}

cmd/config/init_probe_test.go

@@ -6,6 +6,11 @@ package config
 import (
 	"bytes"
 	"context"
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	crand "crypto/rand"
+	"crypto/sha256"
 	"errors"
 	"io"
 	"net/http"
@@ -17,14 +22,17 @@ import (
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keysigner"
 )
 
 // fakeRT routes requests to per-path handlers and records what it saw.
 type fakeRT struct {
 	tatHandler   func(req *http.Request) (*http.Response, error)
 	probeHandler func(req *http.Request) (*http.Response, error)
+	oauthHandler func(req *http.Request) (*http.Response, error)
 	tatCalls     int
 	probeCalls   int
+	oauthCalls   int
 	probeReq     *http.Request
 	probeBody    string
 }
@@ -48,10 +56,50 @@ func (f *fakeRT) RoundTrip(req *http.Request) (*http.Response, error) {
 			return jsonResp(200, `{"code":0,"data":{},"msg":"success"}`), nil
 		}
 		return f.probeHandler(req)
+	case strings.HasSuffix(req.URL.Path, "/authen/v2/oauth/token"):
+		f.oauthCalls++
+		if f.oauthHandler == nil {
+			return jsonResp(200, `{"access_token":"test-token"}`), nil
+		}
+		return f.oauthHandler(req)
 	}
 	return nil, errors.New("unexpected URL: " + req.URL.String())
 }
 
+// probeTestSigner is an in-memory real ECDSA P-256 signer used to sign the
+// client_assertion in runProbePKJWT tests (authMethodTestSigner returns a nil
+// key and cannot sign).
+type probeTestSigner struct{ key *ecdsa.PrivateKey }
+
+func newProbeTestSigner(t *testing.T) *probeTestSigner {
+	t.Helper()
+	k, err := ecdsa.GenerateKey(elliptic.P256(), crand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &probeTestSigner{key: k}
+}
+
+func (p *probeTestSigner) EnsureKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return p.key.Public(), nil
+}
+
+func (p *probeTestSigner) PublicKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return p.key.Public(), nil
+}
+
+func (p *probeTestSigner) Sign(_ context.Context, _ keysigner.KeyRef, in []byte) ([]byte, string, error) {
+	h := sha256.Sum256(in)
+	r, s, err := ecdsa.Sign(crand.Reader, p.key, h[:])
+	if err != nil {
+		return nil, "", err
+	}
+	sig := make([]byte, 64)
+	r.FillBytes(sig[:32])
+	s.FillBytes(sig[32:])
+	return sig, keysigner.AlgES256, nil
+}
+
 func jsonResp(code int, body string) *http.Response {
 	return &http.Response{
 		StatusCode: code,
@@ -208,10 +256,12 @@ func TestRunProbe_TATSuccess_ProbeFails_Silent(t *testing.T) {
 	assertSilent(t, err, errBuf)
 }
 
-func TestRunProbe_TATSuccess_ProbeOK_Silent(t *testing.T) {
+func TestProbeInitResult_ClientSecret(t *testing.T) {
 	rt := &fakeRT{}
 	f, errBuf := fakeFactory(t, rt)
-	err := runProbe(context.Background(), f, "cli_x", "secret_y", core.BrandFeishu)
+	opts := &ConfigInitOptions{Ctx: context.Background()}
+	result := &configInitResult{AppID: "cli_x", AppSecret: "test-secret", Brand: core.BrandFeishu}
+	err := probeInitResult(opts, f, result)
 	if rt.tatCalls != 1 || rt.probeCalls != 1 {
 		t.Errorf("expected 1/1 calls, got tat=%d probe=%d", rt.tatCalls, rt.probeCalls)
 	}
@@ -285,3 +335,47 @@ func TestRunProbe_TimeoutHonored(t *testing.T) {
 	// must stay silent and not block.
 	assertSilent(t, err, errBuf)
 }
+
+// runProbePKJWT: a deterministic server rejection (invalid_client) is propagated
+// as a typed ConfigError so config init exits non-zero.
+func TestRunProbePKJWT_DeterministicReject_Propagates(t *testing.T) {
+	rt := &fakeRT{oauthHandler: func(*http.Request) (*http.Response, error) {
+		return jsonResp(401, `{"error":"invalid_client","error_description":"unknown key"}`), nil
+	}}
+	f, errBuf := fakeFactory(t, rt)
+	err := runProbePKJWT(context.Background(), f, core.BrandFeishu, "cli_x", newProbeTestSigner(t), "agent-key")
+	if err == nil || !errs.IsTyped(err) {
+		t.Fatalf("expected propagated typed error, got %T %v", err, err)
+	}
+	if errBuf.Len() != 0 {
+		t.Errorf("runProbePKJWT must not write stderr, got %q", errBuf.String())
+	}
+}
+
+// runProbePKJWT: ambiguous upstream noise (HTTP 503) is swallowed — silent, exit 0.
+func TestRunProbePKJWT_Ambiguous_Silent(t *testing.T) {
+	rt := &fakeRT{oauthHandler: func(*http.Request) (*http.Response, error) {
+		return jsonResp(503, `unavailable`), nil
+	}}
+	f, errBuf := fakeFactory(t, rt)
+	assertSilent(t, runProbePKJWT(context.Background(), f, core.BrandFeishu, "cli_x", newProbeTestSigner(t), "agent-key"), errBuf)
+}
+
+// probeInitResult dispatches private_key_jwt to the assertion-backed probe.
+func TestProbeInitResult_PrivateKeyJWT(t *testing.T) {
+	rt := &fakeRT{} // default oauth handler returns 200 + access_token
+	f, errBuf := fakeFactory(t, rt)
+	previous := keysigner.Active()
+	keysigner.Register(newProbeTestSigner(t))
+	t.Cleanup(func() { keysigner.Register(previous) })
+	opts := &ConfigInitOptions{Ctx: context.Background()}
+	result := &configInitResult{AppID: "cli_x", AuthMethod: core.AuthMethodPrivateKeyJWT, KeyLabel: "agent-key", Brand: core.BrandFeishu}
+	assertSilent(t, probeInitResult(opts, f, result), errBuf)
+}
+
+// runProbePKJWT: a nil signer is a defensive no-op (should not be reached, must
+// not panic).
+func TestRunProbePKJWT_NilSigner_Silent(t *testing.T) {
+	f, errBuf := fakeFactory(t, &fakeRT{})
+	assertSilent(t, runProbePKJWT(context.Background(), f, core.BrandFeishu, "cli_x", nil, "k"), errBuf)
+}

cmd/config/init_test.go

@@ -10,9 +10,25 @@ import (
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keychain"
 	"github.com/larksuite/cli/internal/output"
 )
 
+// TestRunRestoreFlow_NothingToRestore covers the early guards that return before
+// any network/registration call: no config at all, and a config whose resolved
+// app has no app id (nothing to send on begin).
+func TestRunRestoreFlow_NothingToRestore(t *testing.T) {
+	// No config on disk.
+	if err := runRestoreFlow(&ConfigInitOptions{}, nil, nil, nil); err == nil {
+		t.Fatal("expected error when there is no config to restore")
+	}
+	// Config present but the resolved app has no app id.
+	existing := &core.MultiAppConfig{Apps: []core.AppConfig{{AppId: ""}}}
+	if err := runRestoreFlow(&ConfigInitOptions{}, existing, nil, nil); err == nil {
+		t.Fatal("expected error when the resolved app has no app id")
+	}
+}
+
 // updateExistingProfileWithoutSecret guards four blank-input scenarios. Each
 // must surface as *ValidationError(SubtypeInvalidArgument) per RFC 6749 §5.2:
 // SubtypeInvalidClient is reserved for IAM rejection of malformed credentials,
@@ -119,3 +135,58 @@ func assertValidationParam(t *testing.T, err error, wantParam string) {
 		t.Errorf("Param = %q, want %q", valErr.Param, wantParam)
 	}
 }
+
+// countingKeychain is an in-memory KeychainAccess that records whether Remove
+// was invoked, so the stale-secret cleanup can be asserted without a real OS
+// keychain.
+type countingKeychain struct {
+	store        map[string]string
+	removeCalled bool
+}
+
+func newCountingKeychain() *countingKeychain {
+	return &countingKeychain{store: map[string]string{}}
+}
+
+func (k *countingKeychain) Get(service, account string) (string, error) {
+	v, ok := k.store[service+"/"+account]
+	if !ok {
+		return "", keychain.ErrNotFound
+	}
+	return v, nil
+}
+
+func (k *countingKeychain) Set(service, account, value string) error {
+	k.store[service+"/"+account] = value
+	return nil
+}
+
+func (k *countingKeychain) Remove(service, account string) error {
+	k.removeCalled = true
+	delete(k.store, service+"/"+account)
+	return nil
+}
+
+func TestRemoveStaleSecretForPKJWT_SameAppID(t *testing.T) {
+	kc := newCountingKeychain()
+	ref, err := core.ForStorage("cli_same", core.PlainSecret("old-secret"), kc) // → Source:"keychain"
+	if err != nil {
+		t.Fatal(err)
+	}
+	existing := &core.MultiAppConfig{Apps: []core.AppConfig{{AppId: "cli_same", AppSecret: ref}}}
+	removeStaleSecretForPKJWT(existing, "", "cli_same", kc)
+	if !kc.removeCalled {
+		t.Error("same appId with keychain secret: expected kc.Remove to be invoked")
+	}
+}
+
+func TestRemoveStaleSecretForPKJWT_DifferentAppID(t *testing.T) {
+	kc := newCountingKeychain()
+	ref, _ := core.ForStorage("cli_old", core.PlainSecret("old-secret"), kc)
+	kc.removeCalled = false // ForStorage does not call Remove, but reset to be safe
+	existing := &core.MultiAppConfig{Apps: []core.AppConfig{{AppId: "cli_old", AppSecret: ref}}}
+	removeStaleSecretForPKJWT(existing, "", "cli_new", kc)
+	if kc.removeCalled {
+		t.Error("different appId: must NOT remove")
+	}
+}

cmd/config/keyless_bind.go

@@ -0,0 +1,86 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"context"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/credential"
+	"github.com/larksuite/cli/internal/keylessprovider"
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+const keylessBindProbeTimeout = 12 * time.Second
+
+var fetchTATForBind = fetchTATForFreshBind
+
+func fetchTATForFreshBind(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, clientID string, signer keysigner.Signer, provider, keyRef string) (string, func() error, error) {
+	helper, commitProviderManifest, err := keylessprovider.PrepareRefresh(ctx, provider)
+	if err != nil {
+		return "", nil, err
+	}
+	token, err := credential.FetchTATWithAssertionWithHelper(ctx, httpClient, brand, clientID, signer, helper, keyRef)
+	if err != nil {
+		return "", nil, err
+	}
+	return token, commitProviderManifest, nil
+}
+
+// validateBindResult proves that an OpenClaw keyless account can be used by
+// the exact helper/keyRef/appID tuple that will be persisted. Minting a TAT is
+// intentional: pubkey alone only proves that the helper runs (and some signer
+// implementations create a missing key during pubkey); a successful token mint
+// proves that this public key is already registered to the selected app, so no
+// attach flow or second user authorization is needed.
+func validateBindResult(parent context.Context, opts *BindOptions, result *BindResult) error {
+	if result == nil || result.AppConfig == nil {
+		return errs.NewInternalError(errs.SubtypeSDKError, "config bind produced no app configuration")
+	}
+	app := result.AppConfig
+	if app.AuthMethod != core.AuthMethodPrivateKeyJWT {
+		return nil
+	}
+	if app.KeyRef == nil || app.KeyRef.ID == "" {
+		return errs.NewConfigError(errs.SubtypeInvalidConfig,
+			"private_key_jwt bind for app %s is missing keyRef", app.AppId)
+	}
+	if strings.TrimSpace(app.KeyRef.Provider) != core.KeylessProviderLarkSuite {
+		return errs.NewConfigError(errs.SubtypeInvalidClient,
+			"OpenClaw private_key_jwt bind for app %s did not select provider %s", app.AppId, core.KeylessProviderLarkSuite)
+	}
+	if opts == nil || opts.Factory == nil || opts.Factory.HttpClient == nil {
+		return errs.NewInternalError(errs.SubtypeSDKError, "cannot validate keyless bind without an HTTP client")
+	}
+	httpClient, err := opts.Factory.HttpClient()
+	if err != nil {
+		return errs.NewNetworkError(errs.SubtypeNetworkTransport,
+			"cannot create HTTP client for keyless bind validation: %v", err).WithCause(err)
+	}
+
+	ctx, cancel := context.WithTimeout(parent, keylessBindProbeTimeout)
+	defer cancel()
+	_, commitProviderManifest, err := fetchTATForBind(
+		ctx, httpClient, app.Brand, app.AppId, keysigner.Active(), app.KeyRef.Provider, app.KeyRef.ID,
+	)
+	if err != nil {
+		if errs.IsTyped(err) {
+			return err
+		}
+		return errs.NewConfigError(errs.SubtypeInvalidClient,
+			"OpenClaw signer could not authenticate app %s: %v", app.AppId, err).
+			WithHint("repair or reinstall the OpenClaw Feishu plugin and its platform signer dependency, verify the keyless account, then retry config bind").
+			WithCause(err)
+	}
+	if commitProviderManifest == nil {
+		return errs.NewInternalError(errs.SubtypeStorage,
+			"OpenClaw signer validation did not produce a provider manifest commit")
+	}
+	result.commitProviderManifest = commitProviderManifest
+	return nil
+}

cmd/config/keyless_bind_test.go

@@ -0,0 +1,438 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"net/http"
+	"net/url"
+	"os"
+	"path/filepath"
+	"reflect"
+	"runtime"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/auth"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/internal/i18n"
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+func TestConfigBindRun_OpenClawKeylessWritesProviderWithoutPath(t *testing.T) {
+	saveWorkspace(t)
+	clearAgentEnv(t)
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	writeOpenClawKeylessConfig(t, "cli_keyless", "openclaw-lark")
+
+	var gotProvider, gotKeyRef, gotClientID string
+	var providerCommits int
+	var providerCommitSawWorkspace bool
+	replaceBindProbe(t, func(_ context.Context, _ *http.Client, _ core.LarkBrand, clientID string, _ keysigner.Signer, provider, keyRef string) (string, func() error, error) {
+		gotClientID, gotProvider, gotKeyRef = clientID, provider, keyRef
+		return "tat-ok", func() error {
+			providerCommits++
+			data, err := os.ReadFile(core.GetConfigPath())
+			if err != nil {
+				return err
+			}
+			providerCommitSawWorkspace = strings.Contains(string(data), "cli_keyless")
+			return nil
+		}, nil
+	})
+
+	f, stdout, _, _ := cmdutil.TestFactory(t, nil)
+	if err := configBindRun(&BindOptions{Factory: f, Source: "openclaw", Identity: "bot-only"}); err != nil {
+		t.Fatalf("configBindRun: %v", err)
+	}
+	if gotClientID != "cli_keyless" || gotProvider != core.KeylessProviderLarkSuite || gotKeyRef != "openclaw-lark" {
+		t.Fatalf("probe route = client %q provider %q keyRef %q", gotClientID, gotProvider, gotKeyRef)
+	}
+	multi, err := core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	app := multi.CurrentAppConfig("")
+	if app == nil || app.AuthMethod != core.AuthMethodPrivateKeyJWT || app.KeyRef == nil ||
+		app.KeyRef.Provider != core.KeylessProviderLarkSuite || app.KeyRef.ID != "openclaw-lark" || !app.AppSecret.IsZero() {
+		t.Fatalf("persisted app = %#v", app)
+	}
+	if stdout.Len() == 0 {
+		t.Fatal("bind did not emit success envelope")
+	}
+	if providerCommits != 1 {
+		t.Fatalf("provider manifest commits = %d, want 1", providerCommits)
+	}
+	if !providerCommitSawWorkspace {
+		t.Fatal("provider manifest committed before the workspace config became readable")
+	}
+}
+
+func TestConfigBindRun_OpenClawOptionalSignerClosedLoop(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("test helper uses a POSIX shebang; Windows resolution is compile-checked separately")
+	}
+	saveWorkspace(t)
+	clearAgentEnv(t)
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	signerPath := installOpenClawOptionalSigner(t)
+	writeOpenClawKeylessConfig(t, "cli_keyless_optional", "openclaw-lark")
+
+	f, _, _, registry := cmdutil.TestFactory(t, nil)
+	registry.Register(&httpmock.Stub{
+		Method: http.MethodPost,
+		URL:    auth.PathOAuthTokenV2,
+		Body:   map[string]any{"code": 0, "access_token": "tat-from-optional-signer"},
+		BodyFilter: func(body []byte) bool {
+			form, err := url.ParseQuery(string(body))
+			return err == nil &&
+				form.Get("client_id") == "cli_keyless_optional" &&
+				form.Get("client_assertion_type") == "urn:ietf:params:oauth:client-assertion-type:jwt-bearer" &&
+				form.Get("client_assertion") == "optional.jwt" &&
+				!form.Has("client_secret")
+		},
+	})
+
+	if err := configBindRun(&BindOptions{Factory: f, Source: "openclaw", Identity: "bot-only"}); err != nil {
+		t.Fatalf("configBindRun: %v", err)
+	}
+	data, err := os.ReadFile(core.GetConfigPath())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !strings.HasSuffix(string(data), "\n") || !strings.Contains(string(data), "\n  \"apps\": [") {
+		t.Fatalf("config is not formatted JSON with a trailing newline:\n%s", data)
+	}
+	if strings.Contains(string(data), signerPath) {
+		t.Fatalf("config persisted the discovered signer executable path:\n%s", data)
+	}
+	providerData, err := os.ReadFile(filepath.Join(core.GetBaseConfigDir(), "signing-providers.json"))
+	if err != nil {
+		t.Fatalf("read global signer manifest: %v", err)
+	}
+	if !strings.Contains(string(providerData), signerPath) {
+		t.Fatalf("global signer manifest did not record the verified executable")
+	}
+	multi, err := core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	app := multi.CurrentAppConfig("")
+	if app == nil || app.AppId != "cli_keyless_optional" || app.KeyRef == nil ||
+		app.KeyRef.Provider != core.KeylessProviderLarkSuite || app.KeyRef.ID != "openclaw-lark" || !app.AppSecret.IsZero() {
+		t.Fatalf("resolved config = %#v", app)
+	}
+}
+
+func TestConfigBindRun_OpenClawKeylessProbeFailureDoesNotWrite(t *testing.T) {
+	saveWorkspace(t)
+	clearAgentEnv(t)
+	base := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", base)
+	writeOpenClawKeylessConfig(t, "cli_wrong_key", "openclaw-lark")
+	replaceBindProbe(t, func(context.Context, *http.Client, core.LarkBrand, string, keysigner.Signer, string, string) (string, func() error, error) {
+		return "", nil, errs.NewConfigError(errs.SubtypeInvalidClient, "public key is not bound")
+	})
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	if err := configBindRun(&BindOptions{Factory: f, Source: "openclaw", Identity: "bot-only"}); err == nil {
+		t.Fatal("expected probe error")
+	}
+	if _, err := os.Stat(filepath.Join(base, "openclaw", "config.json")); !os.IsNotExist(err) {
+		t.Fatalf("config must not be written; stat error = %v", err)
+	}
+}
+
+func TestConfigBindRun_OpenClawKeylessMissingProviderCommitFailsClosed(t *testing.T) {
+	saveWorkspace(t)
+	clearAgentEnv(t)
+	base := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", base)
+	writeOpenClawKeylessConfig(t, "cli_missing_commit", "openclaw-lark")
+	replaceBindProbe(t, func(context.Context, *http.Client, core.LarkBrand, string, keysigner.Signer, string, string) (string, func() error, error) {
+		return "tat-ok", nil, nil
+	})
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	err := configBindRun(&BindOptions{Factory: f, Source: "openclaw", Identity: "bot-only"})
+	if err == nil || !strings.Contains(err.Error(), "did not produce a provider manifest commit") {
+		t.Fatalf("configBindRun error = %v", err)
+	}
+	if _, statErr := os.Stat(filepath.Join(base, "openclaw", "config.json")); !os.IsNotExist(statErr) {
+		t.Fatalf("config must not be written; stat error = %v", statErr)
+	}
+}
+
+func TestCommitBinding_ProviderManifestFailureRestoresWorkspace(t *testing.T) {
+	saveWorkspace(t)
+	base := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", base)
+	core.SetCurrentWorkspace(core.WorkspaceOpenClaw)
+	configPath := core.GetConfigPath()
+	if err := os.MkdirAll(filepath.Dir(configPath), 0700); err != nil {
+		t.Fatal(err)
+	}
+	previous := []byte("{\n  \"current_app\": \"old\",\n  \"apps\": [{\"name\": \"old\", \"app_id\": \"cli_old\", \"app_secret\": \"keep\"}]\n}\n")
+	if err := os.WriteFile(configPath, previous, 0600); err != nil {
+		t.Fatal(err)
+	}
+
+	f, stdout, stderr, _ := cmdutil.TestFactory(t, nil)
+	commitCalls := 0
+	result := &BindResult{
+		AppConfig: &core.AppConfig{AppId: "cli_new", Brand: core.BrandFeishu},
+		commitProviderManifest: func() error {
+			commitCalls++
+			return errors.New("manifest write failed")
+		},
+	}
+	err := commitBinding(&BindOptions{Factory: f, Identity: "bot-only"}, result, previous, "openclaw", configPath)
+	if err == nil || !strings.Contains(err.Error(), "workspace config restored") {
+		t.Fatalf("commitBinding error = %v", err)
+	}
+	if commitCalls != 1 {
+		t.Fatalf("provider manifest commits = %d, want 1", commitCalls)
+	}
+	got, readErr := os.ReadFile(configPath)
+	if readErr != nil {
+		t.Fatal(readErr)
+	}
+	if string(got) != string(previous) {
+		t.Fatalf("workspace was not restored:\n%s", got)
+	}
+	if stdout.Len() != 0 || stderr.Len() != 0 {
+		t.Fatalf("failed bind emitted success output: stdout=%q stderr=%q", stdout.String(), stderr.String())
+	}
+}
+
+func TestCommitBinding_ProviderManifestFailureRemovesNewWorkspace(t *testing.T) {
+	saveWorkspace(t)
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	core.SetCurrentWorkspace(core.WorkspaceOpenClaw)
+	configPath := core.GetConfigPath()
+	f, stdout, stderr, _ := cmdutil.TestFactory(t, nil)
+	result := &BindResult{
+		AppConfig: &core.AppConfig{AppId: "cli_new", Brand: core.BrandFeishu},
+		commitProviderManifest: func() error {
+			return errors.New("manifest write failed")
+		},
+	}
+	err := commitBinding(&BindOptions{Factory: f, Identity: "bot-only"}, result, nil, "openclaw", configPath)
+	if err == nil || !strings.Contains(err.Error(), "workspace config restored") {
+		t.Fatalf("commitBinding error = %v", err)
+	}
+	if _, statErr := os.Stat(configPath); !os.IsNotExist(statErr) {
+		t.Fatalf("new workspace config was not removed; stat error = %v", statErr)
+	}
+	if stdout.Len() != 0 || stderr.Len() != 0 {
+		t.Fatalf("failed bind emitted success output: stdout=%q stderr=%q", stdout.String(), stderr.String())
+	}
+}
+
+func TestCommitBinding_WorkspaceWriteFailureDoesNotCommitProvider(t *testing.T) {
+	saveWorkspace(t)
+	base := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", base)
+	core.SetCurrentWorkspace(core.WorkspaceOpenClaw)
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	providerCommitted := false
+	result := &BindResult{
+		AppConfig: &core.AppConfig{AppId: "cli_new", Brand: core.BrandFeishu},
+		commitProviderManifest: func() error {
+			providerCommitted = true
+			return nil
+		},
+	}
+	configPath := filepath.Join(base, "missing-parent", "config.json")
+	if err := commitBinding(&BindOptions{Factory: f, Identity: "bot-only"}, result, nil, "openclaw", configPath); err == nil {
+		t.Fatal("expected workspace write failure")
+	}
+	if providerCommitted {
+		t.Fatal("provider manifest was committed before the workspace config write succeeded")
+	}
+}
+
+func TestCommitBinding_ConcurrentWorkspaceChangeFailsBeforeProviderCommit(t *testing.T) {
+	saveWorkspace(t)
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	core.SetCurrentWorkspace(core.WorkspaceOpenClaw)
+	configPath := core.GetConfigPath()
+	if err := os.MkdirAll(filepath.Dir(configPath), 0700); err != nil {
+		t.Fatal(err)
+	}
+	previous := []byte(`{"apps":[{"app_id":"cli_old","app_secret":"old"}]}`)
+	concurrent := []byte(`{"apps":[{"app_id":"cli_other","app_secret":"newer"}]}`)
+	if err := os.WriteFile(configPath, concurrent, 0600); err != nil {
+		t.Fatal(err)
+	}
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	providerCommitted := false
+	result := &BindResult{
+		AppConfig: &core.AppConfig{AppId: "cli_new", Brand: core.BrandFeishu},
+		commitProviderManifest: func() error {
+			providerCommitted = true
+			return nil
+		},
+	}
+	err := commitBinding(&BindOptions{Factory: f, Identity: "bot-only"}, result, previous, "openclaw", configPath)
+	if err == nil || !strings.Contains(err.Error(), "changed while the bind was being validated") {
+		t.Fatalf("commitBinding error = %v", err)
+	}
+	if providerCommitted {
+		t.Fatal("provider manifest was committed after a concurrent workspace change")
+	}
+	got, readErr := os.ReadFile(configPath)
+	if readErr != nil || string(got) != string(concurrent) {
+		t.Fatalf("concurrent workspace was overwritten: %q, %v", got, readErr)
+	}
+}
+
+func TestCommitBinding_ProviderFailureDoesNotOverwriteConcurrentWriter(t *testing.T) {
+	saveWorkspace(t)
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	core.SetCurrentWorkspace(core.WorkspaceOpenClaw)
+	configPath := core.GetConfigPath()
+	if err := os.MkdirAll(filepath.Dir(configPath), 0700); err != nil {
+		t.Fatal(err)
+	}
+	previous := []byte(`{"apps":[{"app_id":"cli_old","app_secret":"old"}]}`)
+	concurrent := []byte(`{"apps":[{"app_id":"cli_other","app_secret":"newer"}]}`)
+	if err := os.WriteFile(configPath, previous, 0600); err != nil {
+		t.Fatal(err)
+	}
+	f, stdout, stderr, _ := cmdutil.TestFactory(t, nil)
+	result := &BindResult{
+		AppConfig: &core.AppConfig{AppId: "cli_new", Brand: core.BrandFeishu},
+		commitProviderManifest: func() error {
+			if err := os.WriteFile(configPath, concurrent, 0600); err != nil {
+				return err
+			}
+			return errors.New("manifest write failed")
+		},
+	}
+	err := commitBinding(&BindOptions{Factory: f, Identity: "bot-only"}, result, previous, "openclaw", configPath)
+	if err == nil || !strings.Contains(err.Error(), "refusing to overwrite") {
+		t.Fatalf("commitBinding error = %v", err)
+	}
+	got, readErr := os.ReadFile(configPath)
+	if readErr != nil || string(got) != string(concurrent) {
+		t.Fatalf("concurrent workspace was overwritten: %q, %v", got, readErr)
+	}
+	if stdout.Len() != 0 || stderr.Len() != 0 {
+		t.Fatalf("failed bind emitted success output: stdout=%q stderr=%q", stdout.String(), stderr.String())
+	}
+}
+
+func TestMergeBoundApp_UpsertsAndActivatesWithoutClobberingSiblings(t *testing.T) {
+	lang := "en_us"
+	previous := &core.MultiAppConfig{
+		StrictMode: core.StrictModeUser,
+		CurrentApp: "other",
+		Apps: []core.AppConfig{
+			{Name: "bound", AppId: "cli_target", Brand: core.BrandLark, Lang: coreLang(lang), Users: []core.AppUser{{UserOpenId: "ou_1", UserName: "alice"}}},
+			{Name: "other", AppId: "cli_other", AppSecret: core.PlainSecret("keep"), Brand: core.BrandFeishu, Users: []core.AppUser{}},
+		},
+	}
+	beforeSibling := previous.Apps[1]
+	data := mustJSON(t, previous)
+	incoming := &core.AppConfig{AppId: "cli_target", Brand: core.BrandFeishu, AuthMethod: core.AuthMethodPrivateKeyJWT,
+		KeyRef: &core.SecretRef{Source: core.SecretSourceTEE, Provider: core.KeylessProviderLarkSuite, ID: "openclaw-lark"}}
+
+	got, err := mergeBoundApp(incoming, data, false)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(got.Apps) != 2 || got.CurrentApp != "bound" || got.PreviousApp != "other" || got.StrictMode != previous.StrictMode {
+		t.Fatalf("merged root = %#v", got)
+	}
+	if !reflect.DeepEqual(got.Apps[1], beforeSibling) {
+		t.Fatalf("sibling changed: got %#v want %#v", got.Apps[1], beforeSibling)
+	}
+	if got.Apps[0].Name != "bound" || got.Apps[0].Lang != coreLang(lang) || !reflect.DeepEqual(got.Apps[0].Users, previous.Apps[0].Users) {
+		t.Fatalf("target-owned fields were lost: %#v", got.Apps[0])
+	}
+}
+
+func writeOpenClawKeylessConfig(t *testing.T, appID, keyRef string) {
+	t.Helper()
+	path := filepath.Join(t.TempDir(), "openclaw.json")
+	data := []byte(`{"channels":{"feishu":{"appId":"` + appID + `","authMethod":"private_key_jwt","keyRef":"` + keyRef + `","domain":"feishu"}}}`)
+	if err := os.WriteFile(path, data, 0600); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv("OPENCLAW_CONFIG_PATH", path)
+}
+
+func replaceBindProbe(t *testing.T, fn func(context.Context, *http.Client, core.LarkBrand, string, keysigner.Signer, string, string) (string, func() error, error)) {
+	t.Helper()
+	previous := fetchTATForBind
+	fetchTATForBind = fn
+	t.Cleanup(func() { fetchTATForBind = previous })
+}
+
+func mustJSON(t *testing.T, value any) []byte {
+	t.Helper()
+	data, err := json.Marshal(value)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return data
+}
+
+func coreLang(value string) i18n.Lang { return i18n.Lang(value) }
+
+func installOpenClawOptionalSigner(t *testing.T) string {
+	t.Helper()
+	// This closure specifically exercises the no-inspect compatibility path;
+	// keylessprovider tests separately cover authoritative managed-project
+	// discovery from `openclaw plugins inspect`.
+	t.Setenv("PATH", "")
+	type signerPackage struct {
+		name, npmOS, npmCPU, binary string
+	}
+	packages := map[string]signerPackage{
+		"darwin/arm64": {"@larksuite/lark-keyless-signer-darwin-arm64", "darwin", "arm64", "lark-keyless-signer"},
+		"darwin/amd64": {"@larksuite/lark-keyless-signer-darwin-x64", "darwin", "x64", "lark-keyless-signer"},
+		"linux/arm64":  {"@larksuite/lark-keyless-signer-linux-arm64", "linux", "arm64", "lark-keyless-signer"},
+		"linux/amd64":  {"@larksuite/lark-keyless-signer-linux-x64", "linux", "x64", "lark-keyless-signer"},
+	}
+	spec, ok := packages[runtime.GOOS+"/"+runtime.GOARCH]
+	if !ok {
+		t.Skipf("no optional signer package for %s/%s", runtime.GOOS, runtime.GOARCH)
+		return ""
+	}
+
+	stateDir := filepath.Join(t.TempDir(), "openclaw state")
+	packageDir := filepath.Join(
+		stateDir, "extensions", "openclaw-lark", "node_modules", "@larksuite", strings.TrimPrefix(spec.name, "@larksuite/"),
+	)
+	binDir := filepath.Join(packageDir, "bin")
+	if err := os.MkdirAll(binDir, 0700); err != nil {
+		t.Fatal(err)
+	}
+	packageJSON, err := json.MarshalIndent(map[string]any{
+		"name": spec.name, "version": "1.2.3", "os": []string{spec.npmOS}, "cpu": []string{spec.npmCPU},
+	}, "", "  ")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(packageDir, "package.json"), append(packageJSON, '\n'), 0600); err != nil {
+		t.Fatal(err)
+	}
+	script := "#!/bin/sh\n" +
+		"IFS= read -r request\n" +
+		"printf '%s\\n' '{\"ok\":true,\"client_assertion_type\":\"urn:ietf:params:oauth:client-assertion-type:jwt-bearer\",\"client_assertion\":\"optional.jwt\"}'\n"
+	signerPath := filepath.Join(binDir, spec.binary)
+	if err := os.WriteFile(signerPath, []byte(script), 0700); err != nil {
+		t.Fatal(err)
+	}
+	t.Setenv("OPENCLAW_STATE_DIR", stateDir)
+	t.Setenv("PATH", "")
+	return signerPath
+}

cmd/doctor/doctor.go

@@ -7,6 +7,7 @@ import (
 	"context"
 	"errors"
 	"fmt"
+	"io"
 	"net/http"
 	"os"
 	"sync"
@@ -19,6 +20,8 @@ import (
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/identitydiag"
+	"github.com/larksuite/cli/internal/keylessprovider"
+	"github.com/larksuite/cli/internal/keysigner"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/transport"
 	"github.com/larksuite/cli/internal/update"
@@ -135,6 +138,9 @@ func doctorRun(opts *DoctorOptions) error {
 		checks = append(checks, fail("identity_ready", "no usable bot or user identity is available", ""))
 	}
 
+	// ── 3b. private_key_jwt / TEE signer (local; runs even with --offline) ──
+	checks = append(checks, teeSignerCheck(opts.Ctx, cfg))
+
 	// ── 4 & 5. Endpoint reachability ──
 	checks = append(checks, networkChecks(opts.Ctx, opts, ep)...)
 
@@ -148,6 +154,73 @@ func identityCheck(name string, id identitydiag.Identity) checkResult {
 	return warn(name, id.Message, id.Hint)
 }
 
+const teeUnavailableHint = "ensure the device secure hardware is accessible (Linux TPM: add your user to the 'tss' group or run with sufficient privileges)"
+
+// teeSignerCheck reports the private_key_jwt signing backend (TEE/TPM) status.
+// The probe is local hardware only (no network), so it runs even with --offline;
+// in a build without a TEE signer it short-circuits without touching any
+// hardware. It is a hard requirement for private_key_jwt apps and purely
+// informational for client_secret apps.
+func teeSignerCheck(ctx context.Context, cfg *core.CliConfig) checkResult {
+	usesPKJWT := cfg != nil && cfg.AuthMethod == core.AuthMethodPrivateKeyJWT
+	if usesPKJWT && cfg.KeyProvider != "" {
+		helper, err := keylessprovider.Resolve(ctx, cfg.KeyProvider)
+		if err != nil {
+			return fail("tee_signer", "external keyless signer is unavailable",
+				fmt.Sprintf("repair or reinstall the OpenClaw Feishu plugin and its platform signer dependency: %v", err))
+		}
+		keyLabel := ""
+		if cfg != nil {
+			keyLabel = cfg.KeyLabel
+		}
+		if err := helper.Probe(ctx, keyLabel); err != nil {
+			hint := fmt.Sprintf("fix the configured external keyless signer, or re-run config init to replace/remove it: %v", err)
+			if usesPKJWT {
+				return fail("tee_signer", "external keyless signer is unavailable", hint)
+			}
+			return warn("tee_signer", "external keyless signer is misconfigured", hint)
+		}
+		return pass("tee_signer", "external keyless signer available")
+	}
+	info, ok, err := keysigner.ProbeActiveHardware(ctx)
+	return teeCheckResult(info, ok, err, usesPKJWT)
+}
+
+// teeCheckResult maps a hardware probe to a doctor check. Split out from
+// teeSignerCheck so the full matrix is unit-testable without a TPM.
+func teeCheckResult(info keysigner.HardwareInfo, ok bool, probeErr error, usesPKJWT bool) checkResult {
+	const name = "tee_signer"
+
+	// No signer registered → private_key_jwt is unsupported on this build.
+	if !ok {
+		if usesPKJWT {
+			return fail(name,
+				"app uses private_key_jwt but this build has no TEE key signer",
+				"the platform key signer ships by default on macOS, Linux, and Windows/amd64; this platform (e.g. Windows/arm64) has none — use a supported platform or re-register without --private-key-jwt")
+		}
+		return skip(name, "no TEE signer in this build (only private_key_jwt is affected; client_secret is unaffected)")
+	}
+
+	backend := info.Backend
+	if backend == "" {
+		backend = "tee"
+	}
+
+	switch {
+	case probeErr != nil:
+		return warn(name, fmt.Sprintf("%s signer present but probe errored: %s", backend, probeErr), "")
+	case info.Available:
+		if info.VendorName != "" {
+			return pass(name, fmt.Sprintf("%s TEE available (%s)", backend, info.VendorName))
+		}
+		return pass(name, fmt.Sprintf("%s TEE available", backend))
+	case usesPKJWT:
+		return fail(name, fmt.Sprintf("%s signer present but TEE unavailable: %s", backend, info.Reason), teeUnavailableHint)
+	default:
+		return warn(name, fmt.Sprintf("%s signer present but TEE unavailable: %s", backend, info.Reason), teeUnavailableHint)
+	}
+}
+
 // networkChecks probes Open API and MCP endpoints concurrently.
 func networkChecks(ctx context.Context, opts *DoctorOptions, ep core.Endpoints) []checkResult {
 	if opts.Offline {
@@ -237,14 +310,90 @@ func finishDoctor(f *cmdutil.Factory, checks []checkResult) error {
 		}
 	}
 
-	result := map[string]interface{}{
-		"ok":        allOK,
-		"workspace": core.CurrentWorkspace().Display(),
-		"checks":    checks,
+	workspace := core.CurrentWorkspace().Display()
+	// A terminal on STDOUT gets a readable report; pipes, redirects, scripts and
+	// tests keep the stable JSON contract (NO_COLOR disables ANSI styling).
+	// OutIsTerminal checks stdout specifically — IOStreams.IsTerminal reflects
+	// stdin, which would wrongly send the human report into `doctor | jq`.
+	if f.IOStreams.OutIsTerminal {
+		renderDoctorHuman(f.IOStreams.Out, workspace, checks, allOK, os.Getenv("NO_COLOR") == "")
+	} else {
+		output.PrintJson(f.IOStreams.Out, map[string]interface{}{
+			"ok":        allOK,
+			"workspace": workspace,
+			"checks":    checks,
+		})
 	}
-	output.PrintJson(f.IOStreams.Out, result)
 	if !allOK {
 		return output.ErrBare(1)
 	}
 	return nil
 }
+
+// renderDoctorHuman writes a readable health report: one aligned line per check
+// with a colored status tag, an indented hint when present, and a summary line.
+func renderDoctorHuman(w io.Writer, workspace string, checks []checkResult, allOK, color bool) {
+	const (
+		green  = "\033[32m"
+		yellow = "\033[33m"
+		red    = "\033[31m"
+		gray   = "\033[90m"
+		bold   = "\033[1m"
+		reset  = "\033[0m"
+	)
+	colorOf := map[string]string{"pass": green, "warn": yellow, "fail": red, "skip": gray}
+	tagOf := map[string]string{"pass": "PASS", "warn": "WARN", "fail": "FAIL", "skip": "SKIP"}
+	paint := func(code, s string) string {
+		if !color || code == "" {
+			return s
+		}
+		return code + s + reset
+	}
+
+	nameW := 0
+	for _, c := range checks {
+		if len(c.Name) > nameW {
+			nameW = len(c.Name)
+		}
+	}
+
+	fmt.Fprintf(w, "\n%s  (workspace: %s)\n\n", paint(bold, "lark-cli doctor"), workspace)
+
+	var passN, warnN, failN, skipN int
+	for _, c := range checks {
+		tag := tagOf[c.Status]
+		if tag == "" {
+			tag = "????"
+		}
+		fmt.Fprintf(w, "  %s  %-*s  %s\n", paint(colorOf[c.Status], "["+tag+"]"), nameW, c.Name, c.Message)
+		if c.Hint != "" {
+			fmt.Fprintf(w, "         %-*s  %s\n", nameW, "", paint(gray, "↳ "+c.Hint))
+		}
+		switch c.Status {
+		case "pass":
+			passN++
+		case "warn":
+			warnN++
+		case "fail":
+			failN++
+		case "skip":
+			skipN++
+		}
+	}
+
+	headline := paint(green, "healthy")
+	if !allOK {
+		headline = paint(red, "problems found")
+	}
+	fmt.Fprintf(w, "\n  %s — %d passed", headline, passN)
+	if warnN > 0 {
+		fmt.Fprintf(w, ", %d warning(s)", warnN)
+	}
+	if failN > 0 {
+		fmt.Fprintf(w, ", %d failed", failN)
+	}
+	if skipN > 0 {
+		fmt.Fprintf(w, ", %d skipped", skipN)
+	}
+	fmt.Fprintln(w)
+}

cmd/doctor/doctor_test.go

@@ -7,6 +7,7 @@ import (
 	"bytes"
 	"context"
 	"encoding/json"
+	"errors"
 	"net/http"
 	"strings"
 	"testing"
@@ -17,6 +18,7 @@ import (
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/credential"
+	"github.com/larksuite/cli/internal/keysigner"
 )
 
 func TestNewCmdDoctor_FlagParsing(t *testing.T) {
@@ -144,6 +146,107 @@ func TestDoctorRun_SplitsBotAndMissingUserIdentity(t *testing.T) {
 	assertCheck(t, got.Checks, "identity_ready", "pass")
 }
 
+func TestTeeCheckResult(t *testing.T) {
+	avail := keysigner.HardwareInfo{Backend: "tpm2", Available: true, VendorName: "ACME"}
+	unavail := keysigner.HardwareInfo{Backend: "tpm2", Reason: "open /dev/tpmrm0: permission denied"}
+
+	cases := []struct {
+		name     string
+		info     keysigner.HardwareInfo
+		ok       bool
+		probeErr error
+		pkjwt    bool
+		want     string
+	}{
+		{"no signer + private_key_jwt → fail", keysigner.HardwareInfo{}, false, nil, true, "fail"},
+		{"no signer + client_secret → skip", keysigner.HardwareInfo{}, false, nil, false, "skip"},
+		{"available + private_key_jwt → pass", avail, true, nil, true, "pass"},
+		{"available + client_secret → pass", avail, true, nil, false, "pass"},
+		{"unavailable + private_key_jwt → fail", unavail, true, nil, true, "fail"},
+		{"unavailable + client_secret → warn", unavail, true, nil, false, "warn"},
+		{"probe error → warn", keysigner.HardwareInfo{Backend: "tpm2"}, true, errors.New("boom"), true, "warn"},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			got := teeCheckResult(tc.info, tc.ok, tc.probeErr, tc.pkjwt)
+			if got.Name != "tee_signer" {
+				t.Errorf("name = %q, want tee_signer", got.Name)
+			}
+			if got.Status != tc.want {
+				t.Errorf("status = %q, want %q (msg=%q)", got.Status, tc.want, got.Message)
+			}
+		})
+	}
+}
+
+// TestDoctorRun_TeeSignerWired proves the tee_signer check is part of doctorRun.
+// It asserts the build-independent invariant (a client_secret app must never
+// FAIL on TEE) so the test passes whether or not a signer is compiled in.
+func TestDoctorRun_TeeSignerWired(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	if err := core.SaveMultiAppConfig(&core.MultiAppConfig{
+		CurrentApp: "default",
+		Apps: []core.AppConfig{{
+			Name: "default", AppId: "test-app",
+			AppSecret: core.PlainSecret("secret"), Brand: core.BrandFeishu,
+		}},
+	}); err != nil {
+		t.Fatalf("SaveMultiAppConfig() error = %v", err)
+	}
+	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "secret", Brand: core.BrandFeishu,
+	})
+	if err := doctorRun(&DoctorOptions{Factory: f, Ctx: context.Background(), Offline: true}); err != nil {
+		t.Fatalf("doctorRun() error = %v", err)
+	}
+	var got struct {
+		Checks []checkResult `json:"checks"`
+	}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json.Unmarshal() error = %v", err)
+	}
+	var c *checkResult
+	for i := range got.Checks {
+		if got.Checks[i].Name == "tee_signer" {
+			c = &got.Checks[i]
+		}
+	}
+	if c == nil {
+		t.Fatalf("tee_signer check not present in doctor output: %#v", got.Checks)
+	}
+	if c.Status == "fail" {
+		t.Errorf("tee_signer = fail for a client_secret app; want skip/warn/pass (msg=%q)", c.Message)
+	}
+}
+
+func TestRenderDoctorHuman(t *testing.T) {
+	var buf bytes.Buffer
+	checks := []checkResult{
+		pass("cli_version", "1.0.50"),
+		warn("tee_signer", "tpm2 signer present but TEE unavailable", "add your user to the 'tss' group"),
+		fail("identity_ready", "no usable identity", "run: lark-cli auth status --verify"),
+		skip("endpoint_open", "skipped (--offline)"),
+	}
+	renderDoctorHuman(&buf, "local", checks, false, false)
+	out := buf.String()
+
+	for _, want := range []string{
+		"lark-cli doctor", "workspace: local",
+		"[PASS]", "cli_version", "1.0.50",
+		"[WARN]", "tee_signer", "↳ add your user to the 'tss' group",
+		"[FAIL]", "identity_ready", "↳ run: lark-cli auth status --verify",
+		"[SKIP]", "endpoint_open",
+		"problems found", "1 passed", "1 warning(s)", "1 failed", "1 skipped",
+	} {
+		if !strings.Contains(out, want) {
+			t.Errorf("output missing %q\n---\n%s", want, out)
+		}
+	}
+	if strings.Contains(out, "\033[") {
+		t.Errorf("color=false but ANSI escapes present:\n%s", out)
+	}
+}
+
 func assertCheck(t *testing.T, checks []checkResult, name, status string) {
 	t.Helper()
 	if got := findCheck(t, checks, name); got.Status != status {

cmd/event/list_test.go

@@ -17,6 +17,8 @@ import (
 
 func TestEventLookup_VCMeetingLifecycleKeys(t *testing.T) {
 	for _, key := range []string{
+		"approval.instance.status_changed_v4",
+		"approval.task.status_changed_v4",
 		"vc.meeting.participant_meeting_started_v1",
 		"vc.meeting.participant_meeting_joined_v1",
 	} {
@@ -36,6 +38,8 @@ func TestRunList_TextOutput(t *testing.T) {
 	out := stdout.String()
 	for _, want := range []string{
 		"KEY", "AUTH", "PARAMS", "DESCRIPTION",
+		"approval.instance.status_changed_v4",
+		"approval.task.status_changed_v4",
 		"im.message.receive_v1",
 		"im.message.message_read_v1",
 		"task.task.update_user_access_v2",
@@ -90,6 +94,8 @@ func TestRunList_JSONOutput(t *testing.T) {
 		t.Fatal("event list JSON missing task.task.update_user_access_v2")
 	}
 	for _, want := range []string{
+		"approval.instance.status_changed_v4",
+		"approval.task.status_changed_v4",
 		"vc.meeting.participant_meeting_started_v1",
 		"vc.meeting.participant_meeting_joined_v1",
 	} {

cmd/event/schema_test.go

@@ -19,6 +19,29 @@ import (
 	_ "github.com/larksuite/cli/events"
 )
 
+type approvalSchemaJSONPayload struct {
+	JQRootPath           string                           `json:"jq_root_path"`
+	AuthTypes            []string                         `json:"auth_types"`
+	Scopes               []string                         `json:"scopes"`
+	Params               []approvalSchemaJSONParam        `json:"params"`
+	ResolvedOutputSchema approvalSchemaJSONResolvedSchema `json:"resolved_output_schema"`
+}
+
+type approvalSchemaJSONParam struct {
+	Name            string `json:"name"`
+	Type            string `json:"type"`
+	Required        bool   `json:"required"`
+	SubscriptionKey bool   `json:"subscription_key"`
+}
+
+type approvalSchemaJSONResolvedSchema struct {
+	Properties map[string]approvalSchemaJSONProperty `json:"properties"`
+}
+
+type approvalSchemaJSONProperty struct {
+	Format string `json:"format"`
+}
+
 func TestRunSchema_ProcessedKey_Text(t *testing.T) {
 	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{AppID: "test"})
 
@@ -96,6 +119,40 @@ func TestRunSchema_JSONOutput(t *testing.T) {
 	}
 }
 
+func TestRunSchema_ReceiveMessageAgentFieldsJSON(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{AppID: "test"})
+
+	if err := runSchema(f, "im.message.receive_v1", true); err != nil {
+		t.Fatalf("runSchema json: %v", err)
+	}
+
+	var payload map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &payload); err != nil {
+		t.Fatalf("output is not valid JSON: %v\n%s", err, stdout.String())
+	}
+	resolved := payload["resolved_output_schema"].(map[string]interface{})
+	props := resolved["properties"].(map[string]interface{})
+	for _, field := range []string{
+		"root_id",
+		"thread_id",
+		"reply_to",
+		"sender_type",
+		"mentions",
+	} {
+		if _, ok := props[field]; !ok {
+			t.Errorf("receive schema missing field %q", field)
+		}
+	}
+	msgDesc := props["message_id"].(map[string]interface{})["description"].(string)
+	if !strings.Contains(msgDesc, "Recommended idempotency key") {
+		t.Errorf("message_id description should guide deduplication, got %q", msgDesc)
+	}
+	eventDesc := props["event_id"].(map[string]interface{})["description"].(string)
+	if strings.Contains(eventDesc, "safe for deduplication") {
+		t.Errorf("event_id description should not recommend deduplication, got %q", eventDesc)
+	}
+}
+
 func TestRunSchema_TaskUpdateUserAccessJSON(t *testing.T) {
 	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{AppID: "test"})
 
@@ -124,6 +181,60 @@ func TestRunSchema_TaskUpdateUserAccessJSON(t *testing.T) {
 	}
 }
 
+func TestRunSchema_ApprovalStatusChangedJSON(t *testing.T) {
+	tests := []struct {
+		key   string
+		scope string
+	}{
+		{"approval.instance.status_changed_v4", "approval:instance:read"},
+		{"approval.task.status_changed_v4", "approval:task:read"},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.key, func(t *testing.T) {
+			t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+			f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{AppID: "test"})
+
+			if err := runSchema(f, tc.key, true); err != nil {
+				t.Fatalf("runSchema json: %v", err)
+			}
+
+			var payload approvalSchemaJSONPayload
+			if err := json.Unmarshal(stdout.Bytes(), &payload); err != nil {
+				t.Fatalf("output is not valid JSON: %v\n%s", err, stdout.String())
+			}
+			if payload.JQRootPath != "." {
+				t.Errorf("jq_root_path = %v, want .", payload.JQRootPath)
+			}
+			if got := payload.AuthTypes; !reflect.DeepEqual(got, []string{"user"}) {
+				t.Errorf("auth_types = %#v, want user", got)
+			}
+			if got := payload.Scopes; !reflect.DeepEqual(got, []string{tc.scope}) {
+				t.Errorf("scopes = %#v, want %s", got, tc.scope)
+			}
+			if len(payload.Params) != 1 {
+				t.Fatalf("params = %#v, want one subscription_type param", payload.Params)
+			}
+			param := payload.Params[0]
+			if param.Name != "subscription_type" || param.Type != "multi" || param.Required || param.SubscriptionKey {
+				t.Fatalf("subscription_type param = %#v, want optional multi non-subscription-key param", param)
+			}
+			props := payload.ResolvedOutputSchema.Properties
+			for _, field := range []string{"type", "event_id", "timestamp", "approval_code", "instance_code", "status", "operate_time"} {
+				if _, ok := props[field]; !ok {
+					t.Errorf("approval schema missing flat field %q: %+v", field, props)
+				}
+			}
+			if _, ok := props["event"]; ok {
+				t.Errorf("approval Custom schema should be flat, got envelope field event: %+v", props)
+			}
+			if got := props["operate_time"].Format; got != "timestamp_ms" {
+				t.Errorf("operate_time format = %v, want timestamp_ms", got)
+			}
+		})
+	}
+}
+
 func TestRunSchema_JSONOutput_VCMeetingLifecycleKeys(t *testing.T) {
 	for _, key := range []string{
 		"vc.meeting.participant_meeting_started_v1",

cmd/root.go

@@ -107,6 +107,7 @@ func Execute() int {
 		ctx, inv,
 		WithIO(os.Stdin, os.Stdout, os.Stderr),
 		HideProfile(isSingleAppMode()),
+		WithStartupBrand(ResolveStartupBrand(inv.Profile)),
 	)
 
 	// --- Notices (non-blocking) ---

cmd/root_integration_test.go

@@ -371,10 +371,11 @@ func TestIntegration_StrictModeUser_ProfileOverride_ShortcutExplicitBotReturnsEn
 
 func TestIntegration_StrictModeBot_ProfileOverride_ServiceExplicitUserReturnsEnvelope(t *testing.T) {
 	f, stdout, stderr := newStrictModeDefaultFactory(t, "target", core.StrictModeBot)
-	rootCmd := buildStrictModeIntegrationRootCmd(t, f)
+	catalog := strictModeFixtureCatalog()
+	rootCmd := buildStrictModeIntegrationRootCmdWithCatalog(t, f, &catalog)
 
 	code := executeRootIntegration(t, f, rootCmd, []string{
-		"im", "chats", "get", "--params", `{"chat_id":"oc_test"}`, "--as", "user", "--dry-run",
+		"fixture", "things", "create", "--data", `{"name":"probe"}`, "--as", "user", "--dry-run",
 	})
 
 	if code != output.ExitValidation {

cmd/service/service.go

@@ -403,9 +403,9 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 
 	if opts.DryRun {
 		if fileMeta != nil {
-			return cmdutil.PrintDryRunWithFile(f.IOStreams.Out, request, config, opts.Format, fileMeta.FieldName, fileMeta.FilePath, fileMeta.FormFields)
+			return cmdutil.PrintDryRunWithFile(request, config, serviceDryRunOutputOptions(f, opts), *fileMeta)
 		}
-		return serviceDryRun(f, request, config, opts.Format)
+		return serviceDryRun(f, request, config, opts)
 	}
 
 	if opts.Method.Risk == cmdutil.RiskHighRiskWrite {
@@ -667,8 +667,19 @@ func buildServiceRequest(opts *ServiceMethodOptions) (client.RawApiRequest, *cmd
 	return request, nil, nil
 }
 
-func serviceDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, format string) error {
-	return cmdutil.PrintDryRun(f.IOStreams.Out, request, config, format)
+func serviceDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, opts *ServiceMethodOptions) error {
+	return cmdutil.PrintDryRun(request, config, serviceDryRunOutputOptions(f, opts))
+}
+
+func serviceDryRunOutputOptions(f *cmdutil.Factory, opts *ServiceMethodOptions) cmdutil.DryRunOutputOptions {
+	return cmdutil.DryRunOutputOptions{
+		Format:      opts.Format,
+		JqExpr:      opts.JqExpr,
+		CommandPath: opts.Cmd.CommandPath(),
+		Identity:    opts.As,
+		Out:         f.IOStreams.Out,
+		ErrOut:      f.IOStreams.ErrOut,
+	}
 }
 
 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 {
@@ -696,20 +707,18 @@ func servicePaginate(ctx context.Context, ac *client.APIClient, request client.R
 
 	switch format {
 	case output.FormatNDJSON, output.FormatTable, output.FormatCSV:
-		pf := output.NewPaginatedFormatter(out, format)
+		emitter := output.NewEmitter(output.EmitterConfig{
+			Out:            out,
+			ErrOut:         errOut,
+			CommandPath:    commandPath,
+			Identity:       string(pagOpts.Identity),
+			NoticeProvider: output.GetNotice,
+		})
 		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
+			return emitter.StreamPage(items, output.StreamOptions{Format: format.String()})
 		}, pagOpts)
 		if err != nil {
 			return err

cmd/service/service_paginate_test.go

@@ -0,0 +1,400 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"net/http"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/client"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/internal/output"
+)
+
+type serviceFailOnWriteWriter struct {
+	buf    bytes.Buffer
+	writes int
+	failAt int
+	err    error
+}
+
+func (w *serviceFailOnWriteWriter) Write(p []byte) (int, error) {
+	w.writes++
+	if w.writes == w.failAt {
+		return 0, w.err
+	}
+	return w.buf.Write(p)
+}
+
+func newServicePaginateTestHarness(t *testing.T) (*client.APIClient, *bytes.Buffer, *bytes.Buffer, *httpmock.Registry) {
+	t.Helper()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "off")
+	previousNotice := output.PendingNotice
+	output.PendingNotice = nil
+	t.Cleanup(func() { output.PendingNotice = previousNotice })
+
+	config := &core.CliConfig{
+		AppID:     "test-app",
+		AppSecret: "test-secret",
+		Brand:     core.BrandFeishu,
+	}
+	f, out, errOut, reg := cmdutil.TestFactory(t, config)
+	ac, err := f.NewAPIClientWithConfig(config)
+	if err != nil {
+		t.Fatalf("NewAPIClientWithConfig() error = %v", err)
+	}
+	ac.ErrOut = io.Discard
+	return ac, out, errOut, reg
+}
+
+func servicePaginateRequest() client.RawApiRequest {
+	return client.RawApiRequest{
+		Method: "GET",
+		URL:    "/open-apis/test/v1/items",
+		As:     core.AsBot,
+	}
+}
+
+func assertServicePaginateJSONBytes(t *testing.T, got []byte, want interface{}) {
+	t.Helper()
+	wantBytes, err := json.MarshalIndent(want, "", "  ")
+	if err != nil {
+		t.Fatalf("marshal expected JSON: %v", err)
+	}
+	wantBytes = append(wantBytes, '\n')
+	if !bytes.Equal(got, wantBytes) {
+		t.Fatalf("stdout bytes mismatch\ngot:\n%s\nwant:\n%s", got, wantBytes)
+	}
+}
+
+func TestServicePaginate_DefaultAggregatesAllPages(t *testing.T) {
+	ac, out, errOut, reg := newServicePaginateTestHarness(t)
+	calls := 0
+	wantTokens := []string{"", "next-1", "next-2"}
+	for i, wantToken := range wantTokens {
+		page := i + 1
+		hasMore := page < len(wantTokens)
+		data := map[string]interface{}{
+			"items":    []interface{}{map[string]interface{}{"id": string(rune('0' + page))}},
+			"has_more": hasMore,
+		}
+		if hasMore {
+			data["page_token"] = wantTokens[page]
+		}
+		reg.Register(&httpmock.Stub{
+			URL: "/open-apis/test/v1/items",
+			OnMatch: func(req *http.Request) {
+				calls++
+				if got := req.URL.Query().Get("page_token"); got != wantToken {
+					t.Errorf("request %d page_token = %q, want %q", page, got, wantToken)
+				}
+			},
+			Body: map[string]interface{}{
+				"code": 0,
+				"msg":  "ok",
+				"data": data,
+			},
+		})
+	}
+
+	err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+		output.FormatJSON, "", out, errOut, "lark-cli test items list", client.PaginationOptions{
+			PageLimit: 10,
+			PageDelay: -1,
+		}, ac.CheckResponse)
+
+	if err != nil {
+		t.Fatalf("servicePaginate() error = %v, want nil", err)
+	}
+	if calls != 3 {
+		t.Fatalf("pagination requests = %d, want 3", calls)
+	}
+	assertServicePaginateJSONBytes(t, out.Bytes(), output.Envelope{
+		OK:       true,
+		Identity: "bot",
+		Data: map[string]interface{}{
+			"items": []interface{}{
+				map[string]interface{}{"id": "1"},
+				map[string]interface{}{"id": "2"},
+				map[string]interface{}{"id": "3"},
+			},
+			"has_more": false,
+		},
+	})
+	if got := errOut.String(); got != "" {
+		t.Fatalf("stderr bytes = %q, want empty", got)
+	}
+}
+
+func TestServicePaginate_StreamingFormatsEmitExactMultiPageBytes(t *testing.T) {
+	tests := []struct {
+		name   string
+		format output.Format
+		want   string
+	}{
+		{
+			name:   "ndjson",
+			format: output.FormatNDJSON,
+			want:   "{\"id\":\"1\",\"name\":\"Alice\"}\n{\"id\":\"2\",\"name\":\"Carol\",\"page_only\":\"ignored\"}\n",
+		},
+		{
+			name:   "table",
+			format: output.FormatTable,
+			want:   "id  name \n──  ─────\n1   Alice\n2   Carol\n",
+		},
+		{
+			name:   "csv",
+			format: output.FormatCSV,
+			want:   "id,name\n1,Alice\n2,Carol\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ac, out, errOut, reg := newServicePaginateTestHarness(t)
+			reg.Register(&httpmock.Stub{
+				URL: "/open-apis/test/v1/items",
+				Body: map[string]interface{}{
+					"code": 0,
+					"msg":  "ok",
+					"data": map[string]interface{}{
+						"items": []interface{}{
+							map[string]interface{}{"id": "1", "name": "Alice"},
+						},
+						"has_more":   true,
+						"page_token": "next-1",
+					},
+				},
+			})
+			reg.Register(&httpmock.Stub{
+				URL: "/open-apis/test/v1/items",
+				Body: map[string]interface{}{
+					"code": 0,
+					"msg":  "ok",
+					"data": map[string]interface{}{
+						"items": []interface{}{
+							map[string]interface{}{"id": "2", "name": "Carol", "page_only": "ignored"},
+						},
+						"has_more": false,
+					},
+				},
+			})
+
+			err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+				tt.format, "", out, errOut, "lark-cli test items list", client.PaginationOptions{
+					PageLimit: 10,
+					PageDelay: -1,
+				}, ac.CheckResponse)
+
+			if err != nil {
+				t.Fatalf("servicePaginate() error = %v, want nil", err)
+			}
+			if got := out.String(); got != tt.want {
+				t.Fatalf("stdout byte mismatch\ngot (%d bytes):\n%q\nwant (%d bytes):\n%q", len(got), got, len(tt.want), tt.want)
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+		})
+	}
+}
+
+func TestServicePaginate_StreamingWriteFailureStopsFurtherPages(t *testing.T) {
+	ac, _, errOut, reg := newServicePaginateTestHarness(t)
+	sentinel := errors.New("page write failed")
+	out := &serviceFailOnWriteWriter{failAt: 2, err: sentinel}
+	calls := 0
+	for page := 1; page <= 2; page++ {
+		hasMore := true
+		data := map[string]interface{}{
+			"items":    []interface{}{map[string]interface{}{"id": page}},
+			"has_more": hasMore,
+		}
+		if hasMore {
+			data["page_token"] = fmt.Sprintf("next-%d", page)
+		}
+		reg.Register(&httpmock.Stub{
+			URL: "/open-apis/test/v1/items",
+			OnMatch: func(*http.Request) {
+				calls++
+			},
+			Body: map[string]interface{}{
+				"code": 0,
+				"msg":  "ok",
+				"data": data,
+			},
+		})
+	}
+
+	err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+		output.FormatNDJSON, "", out, errOut, "lark-cli test items list",
+		client.PaginationOptions{PageLimit: 10, PageDelay: -1}, ac.CheckResponse)
+
+	if !errors.Is(err, sentinel) {
+		t.Fatalf("servicePaginate() error = %v, want preserved writer cause", err)
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok || problem.Category != errs.CategoryInternal {
+		t.Fatalf("servicePaginate() problem = %#v, %v; want internal typed error", problem, ok)
+	}
+	if calls != 2 {
+		t.Fatalf("pagination requests = %d, want 2", calls)
+	}
+	if got, want := out.buf.String(), "{\"id\":1}\n"; got != want {
+		t.Fatalf("stdout bytes = %q, want %q", got, want)
+	}
+}
+
+func TestServicePaginate_StreamingFormatFallsBackToJSONWithoutList(t *testing.T) {
+	ac, out, errOut, reg := newServicePaginateTestHarness(t)
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/test/v1/items",
+		Body: map[string]interface{}{
+			"code": 0,
+			"msg":  "ok",
+			"data": map[string]interface{}{
+				"name":    "Test User",
+				"user_id": "u123",
+			},
+		},
+	})
+
+	err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+		output.FormatNDJSON, "", out, errOut, "lark-cli test items get",
+		client.PaginationOptions{PageDelay: -1}, ac.CheckResponse)
+
+	if err != nil {
+		t.Fatalf("servicePaginate() error = %v, want nil", err)
+	}
+	assertServicePaginateJSONBytes(t, out.Bytes(), output.Envelope{
+		OK:       true,
+		Identity: "bot",
+		Data: map[string]interface{}{
+			"name":    "Test User",
+			"user_id": "u123",
+		},
+	})
+	wantWarning := "warning: this API does not return a list, format \"ndjson\" is not supported, falling back to json\n"
+	if got := errOut.String(); got != wantWarning {
+		t.Fatalf("stderr bytes = %q, want %q", got, wantWarning)
+	}
+}
+
+func TestServicePaginate_BusinessErrorsWriteRawAndRemainUnmarked(t *testing.T) {
+	businessResponse := map[string]interface{}{
+		"code": 123456,
+		"msg":  "fixture business error",
+		"data": map[string]interface{}{"detail": "business failed"},
+	}
+	tests := []struct {
+		name   string
+		format output.Format
+		jqExpr string
+	}{
+		{name: "jq", format: output.FormatJSON, jqExpr: ".data.items"},
+		{name: "default_json", format: output.FormatJSON},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ac, out, errOut, reg := newServicePaginateTestHarness(t)
+			reg.Register(&httpmock.Stub{
+				URL:  "/open-apis/test/v1/items",
+				Body: businessResponse,
+			})
+
+			err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+				tt.format, tt.jqExpr, out, errOut, "lark-cli test items list",
+				client.PaginationOptions{PageDelay: -1}, ac.CheckResponse)
+
+			if err == nil {
+				t.Fatal("servicePaginate() error = nil, want business error")
+			}
+			if errs.IsRaw(err) {
+				t.Fatalf("errs.IsRaw(error) = true, want current servicePaginate pass-through behavior")
+			}
+			assertServicePaginateJSONBytes(t, out.Bytes(), businessResponse)
+			if bytes.Contains(out.Bytes(), []byte(`"ok": true`)) {
+				t.Fatalf("business-error stdout contains a success envelope:\n%s", out.Bytes())
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+		})
+	}
+}
+
+func TestServicePaginate_TransportErrorsRemainUnmarked(t *testing.T) {
+	tests := []struct {
+		name   string
+		format output.Format
+		jqExpr string
+	}{
+		{name: "jq_paginate_all", format: output.FormatJSON, jqExpr: ".data.items"},
+		{name: "stream_pages", format: output.FormatNDJSON},
+		{name: "default_paginate_all", format: output.FormatJSON},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			ac, out, errOut, _ := newServicePaginateTestHarness(t)
+
+			err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+				tt.format, tt.jqExpr, out, errOut, "lark-cli test items list",
+				client.PaginationOptions{PageDelay: -1}, ac.CheckResponse)
+
+			if err == nil {
+				t.Fatal("servicePaginate() error = nil, want transport error")
+			}
+			if errs.IsRaw(err) {
+				t.Fatalf("errs.IsRaw(error) = true, want current servicePaginate pass-through behavior")
+			}
+			if got := out.String(); got != "" {
+				t.Fatalf("stdout bytes = %q, want empty", got)
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+		})
+	}
+}
+
+func TestServicePaginate_StreamBusinessErrorRemainsUnmarked(t *testing.T) {
+	ac, out, errOut, reg := newServicePaginateTestHarness(t)
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/test/v1/items",
+		Body: map[string]interface{}{
+			"code": 123456,
+			"msg":  "fixture business error",
+			"data": map[string]interface{}{},
+		},
+	})
+
+	err := servicePaginate(context.Background(), ac, servicePaginateRequest(),
+		output.FormatNDJSON, "", out, errOut, "lark-cli test items list",
+		client.PaginationOptions{PageDelay: -1}, ac.CheckResponse)
+
+	if err == nil {
+		t.Fatal("servicePaginate() error = nil, want business error")
+	}
+	if errs.IsRaw(err) {
+		t.Fatalf("errs.IsRaw(error) = true, want current servicePaginate pass-through behavior")
+	}
+	if got := out.String(); got != "" {
+		t.Fatalf("stdout bytes = %q, want empty", got)
+	}
+	if got := errOut.String(); got != "" {
+		t.Fatalf("stderr bytes = %q, want empty", got)
+	}
+}

cmd/service/service_test.go

@@ -224,13 +224,39 @@ func TestServiceMethod_DryRun_PathParam(t *testing.T) {
 			if err := cmd.Execute(); err != nil {
 				t.Fatalf("unexpected error: %v", err)
 			}
-			if !strings.Contains(stdout.String(), tt.wantInURL) {
-				t.Errorf("expected URL containing %q, got:\n%s", tt.wantInURL, stdout.String())
+			var got map[string]interface{}
+			if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+				t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, stdout.String())
+			}
+			if got["ok"] != true || got["dry_run"] != true {
+				t.Fatalf("unexpected dry-run envelope: %#v", got)
+			}
+			data := got["data"].(map[string]interface{})
+			api := data["api"].([]interface{})
+			call := api[0].(map[string]interface{})
+			if call["url"] != tt.wantInURL {
+				t.Errorf("url = %q, want %q\nstdout:\n%s", call["url"], tt.wantInURL, stdout.String())
 			}
 		})
 	}
 }
 
+func TestServiceMethod_DryRunWithJq(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, driveSpec(), driveMethod("GET", nil), "get", "files", nil)
+	cmd.SetArgs([]string{
+		"--params", `{"file_token":"boxcn123abc"}`,
+		"--dry-run",
+		"--jq", ".data.api[0].url",
+	})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got, want := strings.TrimSpace(stdout.String()), "/open-apis/drive/v1/files/boxcn123abc/copy"; got != want {
+		t.Fatalf("jq output = %q, want %q", got, want)
+	}
+}
+
 func TestServiceMethod_PathParamRejectsTraversal(t *testing.T) {
 	tests := []struct {
 		name      string
@@ -318,8 +344,12 @@ func TestServiceMethod_PaginationParamSkippedWithPageAll(t *testing.T) {
 	if err != nil {
 		t.Fatalf("expected no error with --page-all skipping page_size, got: %v", err)
 	}
-	if !strings.Contains(stdout.String(), "Dry Run") {
-		t.Error("expected dry-run output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, stdout.String())
+	}
+	if got["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", got["dry_run"])
 	}
 }
 
@@ -1081,11 +1111,23 @@ func TestServiceMethod_FileUpload_DryRun(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 	out := stdout.String()
-	if !strings.Contains(out, "image") {
-		t.Errorf("expected dry-run output to mention file field, got: %s", out)
+	var env map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, out)
 	}
-	if !strings.Contains(out, "Dry Run") {
-		t.Errorf("expected dry-run header, got: %s", out)
+	if env["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", env["dry_run"])
+	}
+	data := env["data"].(map[string]interface{})
+	api := data["api"].([]interface{})
+	call := api[0].(map[string]interface{})
+	body := call["body"].(map[string]interface{})
+	file := body["file"].(map[string]interface{})
+	if file["field"] != "image" || file["path"] != tmpFile {
+		t.Fatalf("unexpected file dry-run body: %#v", body)
+	}
+	if strings.Contains(out, "=== Dry Run ===") {
+		t.Fatalf("stdout should not contain dry-run banner: %s", out)
 	}
 }
 

cmd/service/testmain_test.go

@@ -0,0 +1,39 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package service
+
+import (
+	"os"
+	"testing"
+
+	"github.com/larksuite/cli/internal/registry/registrytest"
+)
+
+// TestMain isolates service command tests from the host machine: config (and
+// the registry cache under it) is redirected to a temp dir, then the registry
+// is seeded from the tracked fixture and initialized eagerly. Tests pass on a
+// clean checkout with no network, no `make fetch_meta`, and no user cache.
+//
+// Note: os.Exit skips deferred functions, so cleanup runs explicitly after
+// m.Run before exiting.
+func TestMain(m *testing.M) {
+	root, err := os.MkdirTemp("", "lark-cli-cmd-service-test-*")
+	if err != nil {
+		println("cmd/service test setup: MkdirTemp failed:", err.Error())
+		os.Exit(2)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_CONFIG_DIR", root); err != nil {
+		println("cmd/service test setup: Setenv failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	if err := registrytest.Seed(root); err != nil {
+		println("cmd/service test setup: registrytest.Seed failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	code := m.Run()
+	os.RemoveAll(root)
+	os.Exit(code)
+}

cmd/startup_brand.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"os"
+
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/envvars"
+)
+
+// ResolveStartupBrand resolves the brand before the command tree is built, so
+// the registry's remote metadata overlay uses the configured brand from the
+// first catalog access. It mirrors the credential chain's brand precedence —
+// environment, then the active profile's raw config entry — without touching
+// the keychain (no secrets are needed to know the brand).
+func ResolveStartupBrand(profile string) core.LarkBrand {
+	if raw := os.Getenv(envvars.CliBrand); raw != "" {
+		return core.ParseBrand(raw)
+	}
+	if cfg, err := core.LoadMultiAppConfig(); err == nil {
+		if app := cfg.CurrentAppConfig(profile); app != nil {
+			return core.ParseBrand(string(app.Brand))
+		}
+	}
+	return core.BrandFeishu
+}

cmd/startup_brand_test.go

@@ -0,0 +1,143 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/google/uuid"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/registry"
+)
+
+const startupBrandHelperEnv = "GO_TEST_STARTUP_BRAND_HELPER"
+
+var _ = flag.String("startup-brand-helper", "", "internal startup brand test helper nonce")
+
+func isStartupBrandHelper() bool {
+	return startupBrandHelperEnabled(os.Getenv(startupBrandHelperEnv), startupBrandHelperNonce(os.Args))
+}
+
+func startupBrandHelperEnabled(envNonce, argNonce string) bool {
+	return envNonce != "" && envNonce == argNonce
+}
+
+func startupBrandHelperNonce(args []string) string {
+	const prefix = "-startup-brand-helper="
+	for _, arg := range args {
+		if strings.HasPrefix(arg, prefix) {
+			return strings.TrimPrefix(arg, prefix)
+		}
+	}
+	return ""
+}
+
+func TestResolveStartupBrand_Precedence(t *testing.T) {
+	tmp := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", tmp)
+	t.Setenv("LARKSUITE_CLI_BRAND", "")
+	os.Unsetenv("LARKSUITE_CLI_BRAND")
+
+	// No config at all → default brand.
+	if got := ResolveStartupBrand(""); got != core.BrandFeishu {
+		t.Errorf("empty state brand = %q, want feishu", got)
+	}
+
+	// Raw config supplies the active profile's brand — no keychain involved.
+	raw := `{"currentApp":"feishu-app","apps":[` +
+		`{"name":"feishu-app","appId":"cli_f","appSecret":"test-secret","brand":"feishu","users":[]},` +
+		`{"name":"lark-prof","appId":"cli_l","appSecret":"test-secret","brand":"LARK","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+	if got := ResolveStartupBrand(""); got != core.BrandFeishu {
+		t.Errorf("default profile brand = %q, want feishu", got)
+	}
+	if got := ResolveStartupBrand("lark-prof"); got != core.BrandLark {
+		t.Errorf("lark profile brand = %q, want lark (normalized)", got)
+	}
+
+	// Environment wins over the config file.
+	t.Setenv("LARKSUITE_CLI_BRAND", "lark")
+	if got := ResolveStartupBrand(""); got != core.BrandLark {
+		t.Errorf("env brand = %q, want lark", got)
+	}
+}
+
+// TestStartupBrandReachesRegistry_RealStartupOrder proves the fix for the
+// production startup sequence: building the command tree locks the registry's
+// sync.Once, so the brand must be injected before the first catalog access.
+// It runs in a subprocess because the registry is process-global.
+func TestStartupBrandReachesRegistry_RealStartupOrder(t *testing.T) {
+	if isStartupBrandHelper() {
+		// Helper: replicate Execute()'s build wiring with a lark config.
+		buildInternal(
+			context.Background(), cmdutil.InvocationContext{},
+			WithIO(strings.NewReader(""), os.Stdout, os.Stderr),
+			WithStartupBrand(ResolveStartupBrand("")),
+		)
+		fmt.Printf("CONFIGURED_BRAND=%s\n", registry.ConfiguredBrand())
+		os.Exit(0)
+	}
+
+	tmp := t.TempDir()
+	raw := `{"apps":[{"appId":"cli_l","appSecret":"test-secret","brand":"lark","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+
+	nonce := uuid.NewString()
+	t.Setenv(startupBrandHelperEnv, nonce)
+	cmd := exec.Command(os.Args[0], "-test.run", "TestStartupBrandReachesRegistry_RealStartupOrder")
+	cmd.Args = append(cmd.Args, "-startup-brand-helper="+nonce)
+	cmd.Env = append(os.Environ(),
+		"LARKSUITE_CLI_CONFIG_DIR="+tmp,
+		"LARKSUITE_CLI_REMOTE_META=off", // no network during the subprocess build
+	)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("subprocess failed: %v\n%s", err, out)
+	}
+	if !strings.Contains(string(out), "CONFIGURED_BRAND=lark") {
+		t.Errorf("registry brand after real startup order = %s, want lark", out)
+	}
+}
+
+func TestStartupBrandHelperRequiresMatchingCommandNonce(t *testing.T) {
+	for _, tt := range []struct {
+		name     string
+		envNonce string
+		argNonce string
+		want     bool
+	}{
+		{name: "neither set"},
+		{name: "ambient environment only", envNonce: "ambient"},
+		{name: "command argument only", argNonce: "command"},
+		{name: "mismatch", envNonce: "ambient", argNonce: "command"},
+		{name: "matching", envNonce: "nonce", argNonce: "nonce", want: true},
+	} {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := startupBrandHelperEnabled(tt.envNonce, tt.argNonce); got != tt.want {
+				t.Fatalf("startupBrandHelperEnabled() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+func TestStartupBrandHelperNonce(t *testing.T) {
+	if got := startupBrandHelperNonce([]string{"test", "-test.run", "brand"}); got != "" {
+		t.Fatalf("startupBrandHelperNonce() = %q, want empty", got)
+	}
+	if got := startupBrandHelperNonce([]string{"test", "-startup-brand-helper=nonce"}); got != "nonce" {
+		t.Fatalf("startupBrandHelperNonce() = %q, want nonce", got)
+	}
+}

cmd/testmain_test.go

@@ -0,0 +1,46 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"os"
+	"testing"
+
+	"github.com/larksuite/cli/internal/registry/registrytest"
+)
+
+// TestMain isolates command-tree tests from the host machine: config (and the
+// registry cache under it) is redirected to a temp dir, then the registry is
+// seeded from the tracked fixture and initialized eagerly. Tests pass on a
+// clean checkout with no network, no `make fetch_meta`, and no user cache.
+//
+// Note: os.Exit skips deferred functions, so cleanup runs explicitly after
+// m.Run before exiting.
+func TestMain(m *testing.M) {
+	if isStartupBrandHelper() {
+		// Re-exec helper subprocess (startup_brand_test.go): the parent test
+		// already provides an isolated config dir and disables remote metadata,
+		// and the helper must own the first registry Init to prove the startup
+		// order — do not seed or eagerly initialize here.
+		os.Exit(m.Run())
+	}
+	root, err := os.MkdirTemp("", "lark-cli-cmd-test-*")
+	if err != nil {
+		println("cmd test setup: MkdirTemp failed:", err.Error())
+		os.Exit(2)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_CONFIG_DIR", root); err != nil {
+		println("cmd test setup: Setenv failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	if err := registrytest.Seed(root); err != nil {
+		println("cmd test setup: registrytest.Seed failed:", err.Error())
+		os.RemoveAll(root)
+		os.Exit(2)
+	}
+	code := m.Run()
+	os.RemoveAll(root)
+	os.Exit(code)
+}

cmd/update/testmain_test.go

@@ -0,0 +1,23 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmdupdate
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	root, err := os.MkdirTemp("", "lark-cli-update-test-*")
+	if err != nil {
+		panic(err)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_CONFIG_DIR", filepath.Join(root, "config")); err != nil {
+		panic(err)
+	}
+	code := m.Run()
+	_ = os.RemoveAll(root)
+	os.Exit(code)
+}

cmd/update/update.go

@@ -5,6 +5,7 @@ package cmdupdate
 
 import (
 	"fmt"
+	stdio "io"
 	"runtime"
 	"strings"
 
@@ -13,6 +14,7 @@ import (
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/selfupdate"
 	"github.com/larksuite/cli/internal/skillscheck"
@@ -125,13 +127,15 @@ func updateRun(opts *UpdateOptions) error {
 	io := opts.Factory.IOStreams
 	cur := currentVersion()
 	updater := newUpdater()
-
+	// Brand only steers skills sync. updateRun skips that resolution in --check,
+	// where the Updater's zero-value brand retains the Feishu default.
 	if !opts.Check {
+		updater.Brand = resolveSkillsBrand(opts.Factory, io.ErrOut)
 		updater.CleanupStaleFiles()
 	}
 	output.PendingNotice = nil
 
-	// 1. Fetch latest version
+	// 1. Fetch latest version.
 	latest, err := fetchLatest()
 	if err != nil {
 		return reportError(opts, io, "network",
@@ -153,7 +157,7 @@ func updateRun(opts *UpdateOptions) error {
 		return reportAlreadyUpToDate(opts, io, cur, latest, skillsResult, opts.Check)
 	}
 
-	// 4. Detect installation method
+	// 4. Detect installation method.
 	detect := updater.DetectInstallMethod()
 
 	// 5. --check
@@ -168,6 +172,22 @@ func updateRun(opts *UpdateOptions) error {
 	return doAutoUpdate(opts, io, cur, latest, detect, updater)
 }
 
+// resolveSkillsBrand returns the skills-source brand: resolved config first,
+// then the active profile's raw config entry (the brand is not a secret; a
+// locked keychain must not flip the source), then the default with a notice.
+func resolveSkillsBrand(f *cmdutil.Factory, errOut stdio.Writer) core.LarkBrand {
+	if cfg, err := f.Config(); err == nil && cfg != nil {
+		return core.ParseBrand(string(cfg.Brand))
+	}
+	if raw, err := core.LoadMultiAppConfig(); err == nil {
+		if app := raw.CurrentAppConfig(f.Invocation.Profile); app != nil {
+			return core.ParseBrand(string(app.Brand))
+		}
+	}
+	fmt.Fprintf(errOut, "note: could not resolve the configured brand; syncing skills from the default source\n")
+	return core.BrandFeishu
+}
+
 // --- Output helpers ---
 
 // reportError emits the failure on the requested surface: JSON mode prints the

cmd/update/update_test.go

@@ -9,7 +9,9 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"os"
 	"os/exec"
+	"path/filepath"
 	"strings"
 	"testing"
 	"time"
@@ -22,6 +24,8 @@ import (
 	"github.com/larksuite/cli/internal/skillscheck"
 )
 
+const runLiveSkillsTestsEnv = "LARKSUITE_CLI_RUN_LIVE_SKILLS_TESTS"
+
 // newTestFactory creates a test factory with minimal config.
 func newTestFactory(t *testing.T) (*cmdutil.Factory, *bytes.Buffer, *bytes.Buffer) {
 	t.Helper()
@@ -29,13 +33,17 @@ func newTestFactory(t *testing.T) (*cmdutil.Factory, *bytes.Buffer, *bytes.Buffe
 	return f, stdout, stderr
 }
 
-// mockDetect sets up newUpdater to return an Updater with the given DetectResult.
+// mockDetect sets up newUpdater to return an Updater with the given DetectResult
+// and fully mocked skills operations. Tests that only care about install-method
+// detection must never fall through to the real npx skills CLI.
 func mockDetect(t *testing.T, result selfupdate.DetectResult) {
 	t.Helper()
 	origNew := newUpdater
 	newUpdater = func() *selfupdate.Updater {
 		u := selfupdate.New()
 		u.DetectOverride = func() selfupdate.DetectResult { return result }
+		u.SkillsIndexFetchOverride = successfulSkillsIndexFetch()
+		u.SkillsCommandOverride = successfulSkillsCommand()
 		return u
 	}
 	t.Cleanup(func() { newUpdater = origNew })
@@ -102,6 +110,18 @@ func successfulSkillsCommand() func(args ...string) *selfupdate.NpmResult {
 	}
 }
 
+func mockSkillsSync(t *testing.T) {
+	t.Helper()
+	origNew := newUpdater
+	newUpdater = func() *selfupdate.Updater {
+		u := selfupdate.New()
+		u.SkillsIndexFetchOverride = successfulSkillsIndexFetch()
+		u.SkillsCommandOverride = successfulSkillsCommand()
+		return u
+	}
+	t.Cleanup(func() { newUpdater = origNew })
+}
+
 func TestUpdatePnpm_JSON(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	f, stdout, _ := newTestFactory(t)
@@ -226,6 +246,9 @@ func TestNormalizeVersion(t *testing.T) {
 }
 
 func TestUpdateAlreadyUpToDate_JSON(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	mockSkillsSync(t)
+
 	f, stdout, _ := newTestFactory(t)
 
 	cmd := NewCmdUpdate(f)
@@ -254,6 +277,9 @@ func TestUpdateAlreadyUpToDate_JSON(t *testing.T) {
 }
 
 func TestUpdateAlreadyUpToDate_Human(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	mockSkillsSync(t)
+
 	f, _, stderr := newTestFactory(t)
 
 	cmd := NewCmdUpdate(f)
@@ -279,6 +305,7 @@ func TestUpdateAlreadyUpToDate_Human(t *testing.T) {
 }
 
 func TestUpdateManual_JSON(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	f, stdout, _ := newTestFactory(t)
 	cmd := NewCmdUpdate(f)
 	cmd.SetArgs([]string{"--json"})
@@ -310,6 +337,7 @@ func TestUpdateManual_JSON(t *testing.T) {
 }
 
 func TestUpdateManual_Human(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	f, _, stderr := newTestFactory(t)
 	cmd := NewCmdUpdate(f)
 	cmd.SetArgs([]string{})
@@ -1159,6 +1187,7 @@ func TestRunSkillsAndState_DedupForceBypass(t *testing.T) {
 	}
 	called := false
 	updater := &selfupdate.Updater{
+		SkillsIndexFetchOverride: successfulSkillsIndexFetch(),
 		SkillsCommandOverride: func(args ...string) *selfupdate.NpmResult {
 			called = true
 			return successfulSkillsCommand()(args...)
@@ -1175,7 +1204,10 @@ func TestRunSkillsAndState_DedupForceBypass(t *testing.T) {
 
 func TestRunSkillsAndState_SuccessWritesState(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
-	updater := &selfupdate.Updater{SkillsCommandOverride: successfulSkillsCommand()}
+	updater := &selfupdate.Updater{
+		SkillsIndexFetchOverride: successfulSkillsIndexFetch(),
+		SkillsCommandOverride:    successfulSkillsCommand(),
+	}
 	got := runSkillsAndState(updater, newTestIO(), "1.0.21", false)
 	if got == nil || got.Err != nil {
 		t.Fatalf("runSkillsAndState() = %+v, want non-nil with nil Err", got)
@@ -1195,6 +1227,7 @@ func TestRunSkillsAndState_FailureKeepsOldState(t *testing.T) {
 		t.Fatal(err)
 	}
 	updater := &selfupdate.Updater{
+		SkillsIndexFetchOverride: successfulSkillsIndexFetch(),
 		SkillsCommandOverride: func(args ...string) *selfupdate.NpmResult {
 			r := &selfupdate.NpmResult{}
 			r.Err = fmt.Errorf("npx failed")
@@ -1511,28 +1544,133 @@ func TestEmitSkillsTextHints_Success(t *testing.T) {
 	}
 }
 
-// TestUpdateCommand_RealSkillsSyncRewritesState is a live integration test that
-// verifies "lark-cli update" correctly triggers skills sync and rewrites the
-// state file. It calls the real npx skills CLI, so the test is skipped when
-// npx or the skills registry is unavailable (e.g. no network or fork PRs).
-func TestUpdateCommand_RealSkillsSyncRewritesState(t *testing.T) {
-	// Phase 1: Verify the real npx skills CLI is available; skip otherwise.
-	if _, err := exec.LookPath("npx"); err != nil {
-		t.Skipf("npx not found in PATH: %v", err)
+// liveSkillsIsolationEnv is the single source of truth for the user-state
+// directories a live skills test must redirect under the temporary home. It
+// covers the CLI's own config, the agent homes the skills CLI installs into,
+// the XDG dirs it derives paths from (XDG_STATE_HOME holds its global
+// .skill-lock.json), and the npm/npx overrides that take precedence over
+// HOME-derived defaults (both cases: npm reads npm_config_* case-insensitively).
+func liveSkillsIsolationEnv(home string) map[string]string {
+	return map[string]string{
+		"HOME":                     home,
+		"USERPROFILE":              home,
+		"APPDATA":                  filepath.Join(home, "AppData", "Roaming"),
+		"LOCALAPPDATA":             filepath.Join(home, "AppData", "Local"),
+		"XDG_CONFIG_HOME":          filepath.Join(home, ".config"),
+		"XDG_DATA_HOME":            filepath.Join(home, ".local", "share"),
+		"XDG_STATE_HOME":           filepath.Join(home, ".local", "state"),
+		"CODEX_HOME":               filepath.Join(home, ".codex"),
+		"CLAUDE_CONFIG_DIR":        filepath.Join(home, ".claude"),
+		"LARKSUITE_CLI_CONFIG_DIR": filepath.Join(home, ".lark-cli"),
+		"npm_config_cache":         filepath.Join(home, ".npm-cache"),
+		"NPM_CONFIG_CACHE":         filepath.Join(home, ".npm-cache"),
+		"npm_config_prefix":        filepath.Join(home, ".npm-global"),
+		"NPM_CONFIG_PREFIX":        filepath.Join(home, ".npm-global"),
+		"npm_config_userconfig":    filepath.Join(home, ".npmrc"),
+		"NPM_CONFIG_USERCONFIG":    filepath.Join(home, ".npmrc"),
 	}
-	ctx, cancel := context.WithTimeout(context.Background(), 45*time.Second)
+}
+
+func prepareLiveSkillsIntegration(t *testing.T) string {
+	t.Helper()
+	if os.Getenv(runLiveSkillsTestsEnv) != "1" {
+		t.Skipf("live skills integration test disabled; set %s=1 to run", runLiveSkillsTestsEnv)
+	}
+
+	home := t.TempDir()
+	for key, value := range liveSkillsIsolationEnv(home) {
+		t.Setenv(key, value)
+	}
+	return home
+}
+
+func TestPrepareLiveSkillsIntegration(t *testing.T) {
+	reachedAfterGate := false
+	t.Run("requires explicit opt-in", func(t *testing.T) {
+		t.Setenv(runLiveSkillsTestsEnv, "")
+		prepareLiveSkillsIntegration(t)
+		reachedAfterGate = true
+	})
+	if reachedAfterGate {
+		t.Fatal("prepareLiveSkillsIntegration continued without explicit opt-in")
+	}
+
+	t.Run("isolates user directories", func(t *testing.T) {
+		t.Setenv(runLiveSkillsTestsEnv, "1")
+		home := prepareLiveSkillsIntegration(t)
+		// Pin the isolation contract by key: removing a variable from
+		// liveSkillsIsolationEnv must fail this list, and every redirected
+		// value must live under the temporary home.
+		required := []string{
+			"HOME", "USERPROFILE", "APPDATA", "LOCALAPPDATA",
+			"XDG_CONFIG_HOME", "XDG_DATA_HOME", "XDG_STATE_HOME",
+			"CODEX_HOME", "CLAUDE_CONFIG_DIR", "LARKSUITE_CLI_CONFIG_DIR",
+			"npm_config_cache", "NPM_CONFIG_CACHE",
+			"npm_config_prefix", "NPM_CONFIG_PREFIX",
+			"npm_config_userconfig", "NPM_CONFIG_USERCONFIG",
+		}
+		env := liveSkillsIsolationEnv(home)
+		for _, key := range required {
+			expected, ok := env[key]
+			if !ok {
+				t.Errorf("liveSkillsIsolationEnv dropped required key %s", key)
+				continue
+			}
+			if !strings.HasPrefix(expected, home) {
+				t.Errorf("%s = %q escapes temporary home %q", key, expected, home)
+			}
+			if got := os.Getenv(key); got != expected {
+				t.Errorf("%s = %q, want %q", key, got, expected)
+			}
+		}
+	})
+}
+
+// seedLiveSkillsGlobal verifies the real npx skills CLI is reachable, installs
+// lark-calendar into the isolated global skills dir, and returns the parsed
+// global skills list. The caller opted in explicitly, so every missing
+// precondition is a hard failure — skipping would report "nothing verified"
+// as a green run.
+func seedLiveSkillsGlobal(t *testing.T) []string {
+	t.Helper()
+	if _, err := exec.LookPath("npx"); err != nil {
+		t.Fatalf("live skills tests opted in but npx not found in PATH: %v", err)
+	}
+	// Three sequential npx runs against a cold cache (the isolated home starts
+	// empty) can be slow; with Fatal-on-timeout semantics the budget errs on
+	// the generous side.
+	ctx, cancel := context.WithTimeout(context.Background(), 180*time.Second)
 	defer cancel()
 	if err := exec.CommandContext(ctx, "npx", "-y", "skills", "add", "https://open.feishu.cn", "--list").Run(); err != nil {
-		t.Skipf("real skills CLI unavailable: %v", err)
+		t.Fatalf("live skills tests opted in but real skills CLI unavailable: %v", err)
+	}
+	if err := exec.CommandContext(ctx, "npx", "-y", "skills", "add", "https://open.feishu.cn", "-s", "lark-calendar", "-g", "-y").Run(); err != nil {
+		t.Fatalf("failed to seed isolated global skills: %v", err)
 	}
 	globalOut, err := exec.CommandContext(ctx, "npx", "-y", "skills", "ls", "-g").Output()
 	if err != nil {
-		t.Skipf("real global skills CLI unavailable: %v", err)
+		t.Fatalf("real global skills CLI unavailable: %v", err)
 	}
 	localSkills := skillscheck.ParseSkillsList(string(globalOut))
-	if err := ctx.Err(); err != nil {
-		t.Skipf("real skills CLI availability check timed out: %v", err)
+	if len(localSkills) == 0 {
+		t.Fatal("seeded lark-calendar but global skills list is empty")
 	}
+	if err := ctx.Err(); err != nil {
+		t.Fatalf("real skills CLI availability check timed out: %v", err)
+	}
+	return localSkills
+}
+
+// TestUpdateCommand_RealSkillsSyncRewritesState is a live integration test that
+// verifies "lark-cli update" correctly triggers skills sync and rewrites the
+// state file. It calls the real npx skills CLI and only runs with explicit
+// opt-in. All user directories are redirected to a temporary home.
+func TestUpdateCommand_RealSkillsSyncRewritesState(t *testing.T) {
+	prepareLiveSkillsIntegration(t)
+
+	// Phase 1: Verify the real npx skills CLI is available and seed the
+	// isolated global skills install.
+	localSkills := seedLiveSkillsGlobal(t)
 
 	// Phase 2: Seed a previous sync state simulating an upgrade from v1.0.19.
 	// lark-doc and lark-mail are recorded as skipped/deleted, meaning the user
@@ -1628,26 +1766,17 @@ func TestUpdateCommand_RealSkillsSyncRewritesState(t *testing.T) {
 // not exist (cold start), the update command installs all official skills and
 // writes a fresh state file. No skill should appear in SkippedDeletedSkills
 // because there is no previous state to preserve user deletions from.
-// This is a live integration test that calls the real npx skills CLI; it is
-// skipped when npx or the skills registry is unavailable.
+// This is a live integration test that calls the real npx skills CLI and only
+// runs with explicit opt-in. All user directories are redirected to a temporary
+// home.
 func TestUpdateCommand_SkillsSyncColdStart(t *testing.T) {
-	// Phase 1: Verify the real npx skills CLI is available; skip otherwise.
-	if _, err := exec.LookPath("npx"); err != nil {
-		t.Skipf("npx not found in PATH: %v", err)
-	}
-	ctx, cancel := context.WithTimeout(context.Background(), 45*time.Second)
-	defer cancel()
-	if err := exec.CommandContext(ctx, "npx", "-y", "skills", "add", "https://open.feishu.cn", "--list").Run(); err != nil {
-		t.Skipf("real skills CLI unavailable: %v", err)
-	}
-	globalOut, err := exec.CommandContext(ctx, "npx", "-y", "skills", "ls", "-g").Output()
-	if err != nil {
-		t.Skipf("real global skills CLI unavailable: %v", err)
-	}
-	localSkills := skillscheck.ParseSkillsList(string(globalOut))
-	if err := ctx.Err(); err != nil {
-		t.Skipf("real skills CLI availability check timed out: %v", err)
-	}
+	prepareLiveSkillsIntegration(t)
+
+	// Phase 1: Verify the real npx skills CLI is available and seed one known
+	// official skill into the isolated global install. Cold start means no
+	// skills-state.json — locally installed skills may still exist, and seeding
+	// one keeps the Phase 4 per-skill assertions from running zero times.
+	localSkills := seedLiveSkillsGlobal(t)
 
 	// Phase 2: Use an isolated config dir with no pre-existing skills-state.json.
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
@@ -1731,3 +1860,64 @@ func containsString(values []string, target string) bool {
 	}
 	return false
 }
+
+func TestResolveSkillsBrand_LayeredFallback(t *testing.T) {
+	// Layer 1: resolved config wins.
+	var errBuf bytes.Buffer
+	f := &cmdutil.Factory{Config: func() (*core.CliConfig, error) {
+		return &core.CliConfig{Brand: core.LarkBrand(" LARK ")}, nil
+	}}
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandLark {
+		t.Errorf("resolved-config brand = %q, want lark", got)
+	}
+
+	// Layer 2: credential resolution fails, raw config file still supplies the
+	// brand (a locked keychain must not flip a Lark profile to Feishu).
+	tmp := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", tmp)
+	raw := `{"apps":[{"appId":"cli_x","appSecret":"test-secret","brand":"lark","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+	f = &cmdutil.Factory{Config: func() (*core.CliConfig, error) { return nil, errors.New("keychain locked") }}
+	errBuf.Reset()
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandLark {
+		t.Errorf("raw-config brand = %q, want lark", got)
+	}
+	if errBuf.Len() != 0 {
+		t.Errorf("unexpected notice when raw config supplied the brand: %q", errBuf.String())
+	}
+
+	// Layer 3: nothing readable → default brand with a notice.
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	errBuf.Reset()
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandFeishu {
+		t.Errorf("fallback brand = %q, want feishu", got)
+	}
+	if !strings.Contains(errBuf.String(), "could not resolve the configured brand") {
+		t.Errorf("expected fallback notice, got %q", errBuf.String())
+	}
+}
+
+// The raw-config fallback must read the active profile, not the default one.
+func TestResolveSkillsBrand_RespectsActiveProfile(t *testing.T) {
+	tmp := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", tmp)
+	raw := `{"currentApp":"feishu-app","apps":[` +
+		`{"name":"feishu-app","appId":"cli_f","appSecret":"test-secret","brand":"feishu","users":[]},` +
+		`{"name":"lark-prof","appId":"cli_l","appSecret":"test-secret","brand":"lark","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+	f := &cmdutil.Factory{
+		Invocation: cmdutil.InvocationContext{Profile: "lark-prof"},
+		Config:     func() (*core.CliConfig, error) { return nil, errors.New("keychain locked") },
+	}
+	var errBuf bytes.Buffer
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandLark {
+		t.Errorf("brand = %q, want lark (the active profile's brand)", got)
+	}
+	if errBuf.Len() != 0 {
+		t.Errorf("unexpected notice: %q", errBuf.String())
+	}
+}

events/application/menu.go

@@ -0,0 +1,107 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"context"
+	"encoding/json"
+	"strings"
+
+	"github.com/larksuite/cli/internal/event"
+)
+
+// BotMenuOutput is the flattened shape for application.bot.menu_v6.
+type BotMenuOutput struct {
+	Type            string `json:"type"                         desc:"Event type; always application.bot.menu_v6"`
+	EventID         string `json:"event_id,omitempty"           desc:"Globally unique event ID; safe for deduplication"`
+	Timestamp       string `json:"timestamp,omitempty"          desc:"Event delivery time (ms timestamp string); prefers header.create_time" kind:"timestamp_ms"`
+	AppID           string `json:"app_id,omitempty"             desc:"Application ID from the event header"`
+	TenantKey       string `json:"tenant_key,omitempty"         desc:"Tenant key from the event header"`
+	EventKey        string `json:"event_key,omitempty"          desc:"Developer-defined bot menu event key"`
+	MenuTimestamp   string `json:"menu_timestamp,omitempty"     desc:"Menu click timestamp from the event body"                           kind:"timestamp_ms"`
+	OperatorID      string `json:"operator_id,omitempty"        desc:"Operator open_id; kept as a short alias of operator_open_id"        kind:"open_id"`
+	OperatorOpenID  string `json:"operator_open_id,omitempty"   desc:"Operator open_id"                                                   kind:"open_id"`
+	OperatorUnionID string `json:"operator_union_id,omitempty"  desc:"Operator union_id"                                                  kind:"union_id"`
+	OperatorUserID  string `json:"operator_user_id,omitempty"   desc:"Operator user_id"                                                   kind:"user_id"`
+	OperatorName    string `json:"operator_name,omitempty"      desc:"Operator display name"`
+}
+
+func processBotMenu(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
+	var envelope struct {
+		Header struct {
+			EventID    string `json:"event_id"`
+			EventType  string `json:"event_type"`
+			CreateTime string `json:"create_time"`
+			AppID      string `json:"app_id"`
+			TenantKey  string `json:"tenant_key"`
+		} `json:"header"`
+		Event struct {
+			EventKey  string          `json:"event_key"`
+			Timestamp json.RawMessage `json:"timestamp"`
+			Operator  struct {
+				OperatorID struct {
+					OpenID  string `json:"open_id"`
+					UnionID string `json:"union_id"`
+					UserID  string `json:"user_id"`
+				} `json:"operator_id"`
+				OperatorName string `json:"operator_name"`
+			} `json:"operator"`
+		} `json:"event"`
+	}
+	if err := json.Unmarshal(raw.Payload, &envelope); err != nil {
+		return raw.Payload, nil //nolint:nilerr // passthrough on malformed payload so consumers still see the event
+	}
+
+	menuTimestamp := timestampMillisString(envelope.Event.Timestamp)
+	timestamp := envelope.Header.CreateTime
+	if timestamp == "" {
+		timestamp = menuTimestamp
+	}
+	operatorID := envelope.Event.Operator.OperatorID.OpenID
+
+	out := &BotMenuOutput{
+		Type:            eventTypeBotMenuV6,
+		EventID:         envelope.Header.EventID,
+		Timestamp:       timestamp,
+		AppID:           envelope.Header.AppID,
+		TenantKey:       envelope.Header.TenantKey,
+		EventKey:        envelope.Event.EventKey,
+		MenuTimestamp:   menuTimestamp,
+		OperatorID:      operatorID,
+		OperatorOpenID:  operatorID,
+		OperatorUnionID: envelope.Event.Operator.OperatorID.UnionID,
+		OperatorUserID:  envelope.Event.Operator.OperatorID.UserID,
+		OperatorName:    envelope.Event.Operator.OperatorName,
+	}
+	return json.Marshal(out)
+}
+
+func rawScalarString(raw json.RawMessage) string {
+	s := strings.TrimSpace(string(raw))
+	if s == "" || s == "null" {
+		return ""
+	}
+	var text string
+	if err := json.Unmarshal(raw, &text); err == nil {
+		return text
+	}
+	return s
+}
+
+func timestampMillisString(raw json.RawMessage) string {
+	s := rawScalarString(raw)
+	if len(s) == 10 && allDigits(s) {
+		return s + "000"
+	}
+	return s
+}
+
+func allDigits(s string) bool {
+	for _, r := range s {
+		if r < '0' || r > '9' {
+			return false
+		}
+	}
+	return s != ""
+}

events/application/menu_test.go

@@ -0,0 +1,227 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"context"
+	"encoding/json"
+	"reflect"
+	"testing"
+	"time"
+
+	"github.com/larksuite/cli/internal/event"
+)
+
+func TestKeysBotMenuMetadata(t *testing.T) {
+	keys := Keys()
+	if len(keys) != 1 {
+		t.Fatalf("len(Keys()) = %d, want 1", len(keys))
+	}
+
+	def := keys[0]
+	if def.Key != eventTypeBotMenuV6 {
+		t.Errorf("Key = %q, want %q", def.Key, eventTypeBotMenuV6)
+	}
+	if def.EventType != eventTypeBotMenuV6 {
+		t.Errorf("EventType = %q, want %q", def.EventType, eventTypeBotMenuV6)
+	}
+	if def.SubscriptionType != "" {
+		t.Errorf("SubscriptionType = %q, want default event subscription", def.SubscriptionType)
+	}
+	if def.Schema.Custom == nil {
+		t.Fatal("Schema.Custom is nil")
+	}
+	if def.Schema.Custom.Type != reflect.TypeOf(BotMenuOutput{}) {
+		t.Errorf("custom type = %v, want BotMenuOutput", def.Schema.Custom.Type)
+	}
+	if def.Schema.Native != nil {
+		t.Fatal("Schema.Native must be nil for processed output")
+	}
+	if def.Process == nil {
+		t.Fatal("Process is nil")
+	}
+	if !reflect.DeepEqual(def.AuthTypes, []string{"bot"}) {
+		t.Errorf("AuthTypes = %#v", def.AuthTypes)
+	}
+	if !reflect.DeepEqual(def.RequiredConsoleEvents, []string{eventTypeBotMenuV6}) {
+		t.Errorf("RequiredConsoleEvents = %#v", def.RequiredConsoleEvents)
+	}
+}
+
+func TestBotMenuRegistersCleanly(t *testing.T) {
+	const key = eventTypeBotMenuV6
+	event.UnregisterKeyForTest(key)
+	t.Cleanup(func() { event.UnregisterKeyForTest(key) })
+
+	for _, def := range Keys() {
+		event.RegisterKey(def)
+	}
+	if _, ok := event.Lookup(key); !ok {
+		t.Fatalf("event.Lookup(%q) not registered", key)
+	}
+}
+
+func TestProcessBotMenu(t *testing.T) {
+	payload := `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "ev_menu_001",
+			"event_type": "application.bot.menu_v6",
+			"create_time": "1776409469273",
+			"app_id": "cli_test",
+			"tenant_key": "tenant_test"
+		},
+		"event": {
+			"event_key": "start_eval",
+			"timestamp": 1776409469000,
+			"operator": {
+				"operator_id": {
+					"open_id": "ou_operator",
+					"union_id": "on_operator",
+					"user_id": "user_operator"
+				},
+				"operator_name": "Test User"
+			}
+		}
+	}`
+	out := runBotMenu(t, payload)
+
+	if out.Type != eventTypeBotMenuV6 {
+		t.Errorf("Type = %q, want %q", out.Type, eventTypeBotMenuV6)
+	}
+	if out.EventID != "ev_menu_001" {
+		t.Errorf("EventID = %q", out.EventID)
+	}
+	if out.Timestamp != "1776409469273" {
+		t.Errorf("Timestamp = %q", out.Timestamp)
+	}
+	if out.EventKey != "start_eval" {
+		t.Errorf("EventKey = %q", out.EventKey)
+	}
+	if out.MenuTimestamp != "1776409469000" {
+		t.Errorf("MenuTimestamp = %q", out.MenuTimestamp)
+	}
+	if out.OperatorID != "ou_operator" || out.OperatorOpenID != "ou_operator" {
+		t.Errorf("OperatorID/OperatorOpenID = %q/%q", out.OperatorID, out.OperatorOpenID)
+	}
+	if out.OperatorUnionID != "on_operator" {
+		t.Errorf("OperatorUnionID = %q", out.OperatorUnionID)
+	}
+	if out.OperatorUserID != "user_operator" {
+		t.Errorf("OperatorUserID = %q", out.OperatorUserID)
+	}
+	if out.OperatorName != "Test User" {
+		t.Errorf("OperatorName = %q", out.OperatorName)
+	}
+	if out.AppID != "cli_test" || out.TenantKey != "tenant_test" {
+		t.Errorf("AppID/TenantKey = %q/%q", out.AppID, out.TenantKey)
+	}
+}
+
+func TestProcessBotMenuStringTimestampFallback(t *testing.T) {
+	payload := `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "ev_menu_002",
+			"event_type": "application.bot.menu_v6"
+		},
+		"event": {
+			"event_key": "start_eval",
+			"timestamp": "1776409469001",
+			"operator": {
+				"operator_id": {"open_id": "ou_operator"}
+			}
+		}
+	}`
+	out := runBotMenu(t, payload)
+
+	if out.Timestamp != "1776409469001" {
+		t.Errorf("Timestamp fallback = %q", out.Timestamp)
+	}
+	if out.MenuTimestamp != "1776409469001" {
+		t.Errorf("MenuTimestamp = %q", out.MenuTimestamp)
+	}
+}
+
+func TestProcessBotMenuSecondsTimestampFallback(t *testing.T) {
+	payload := `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "ev_menu_seconds",
+			"event_type": "application.bot.menu_v6"
+		},
+		"event": {
+			"event_key": "start_eval",
+			"timestamp": 1694592375,
+			"operator": {
+				"operator_id": {"open_id": "ou_operator"}
+			}
+		}
+	}`
+	out := runBotMenu(t, payload)
+
+	if out.Timestamp != "1694592375000" {
+		t.Errorf("Timestamp fallback = %q, want seconds normalized to milliseconds", out.Timestamp)
+	}
+	if out.MenuTimestamp != "1694592375000" {
+		t.Errorf("MenuTimestamp = %q, want seconds normalized to milliseconds", out.MenuTimestamp)
+	}
+}
+
+func TestProcessBotMenuTypeUsesLocalConstant(t *testing.T) {
+	payload := `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "ev_menu_003",
+			"event_type": "unexpected.event_type",
+			"create_time": "1776409469275"
+		},
+		"event": {
+			"event_key": "start_eval",
+			"operator": {
+				"operator_id": {"open_id": "ou_operator"}
+			}
+		}
+	}`
+	out := runBotMenu(t, payload)
+
+	if out.Type != eventTypeBotMenuV6 {
+		t.Errorf("Type = %q, want %q", out.Type, eventTypeBotMenuV6)
+	}
+}
+
+func TestProcessBotMenuMalformedPayload(t *testing.T) {
+	raw := &event.RawEvent{
+		EventID:   "ev_bad",
+		EventType: eventTypeBotMenuV6,
+		Payload:   json.RawMessage(`not json`),
+		Timestamp: time.Now(),
+	}
+	got, err := processBotMenu(context.Background(), nil, raw, nil)
+	if err != nil {
+		t.Fatalf("Process should swallow parse errors, got %v", err)
+	}
+	if string(got) != "not json" {
+		t.Errorf("malformed fallback output = %q, want original bytes", string(got))
+	}
+}
+
+func runBotMenu(t *testing.T, payload string) BotMenuOutput {
+	t.Helper()
+	raw := &event.RawEvent{
+		EventID:   "ev_test",
+		EventType: eventTypeBotMenuV6,
+		Payload:   json.RawMessage(payload),
+		Timestamp: time.Now(),
+	}
+	got, err := processBotMenu(context.Background(), nil, raw, nil)
+	if err != nil {
+		t.Fatalf("processBotMenu: %v", err)
+	}
+	var out BotMenuOutput
+	if err := json.Unmarshal(got, &out); err != nil {
+		t.Fatalf("unmarshal output: %v\n%s", err, got)
+	}
+	return out
+}

events/application/register.go

@@ -0,0 +1,31 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package application registers Application-domain EventKeys.
+package application
+
+import (
+	"reflect"
+
+	"github.com/larksuite/cli/internal/event"
+)
+
+const eventTypeBotMenuV6 = "application.bot.menu_v6"
+
+// Keys returns all Application-domain EventKey definitions.
+func Keys() []event.KeyDefinition {
+	return []event.KeyDefinition{
+		{
+			Key:         eventTypeBotMenuV6,
+			DisplayName: "Bot menu",
+			Description: "Triggered when a user clicks a custom bot menu item whose action is configured as a push event.",
+			EventType:   eventTypeBotMenuV6,
+			Schema: event.SchemaDef{
+				Custom: &event.SchemaSpec{Type: reflect.TypeOf(BotMenuOutput{})},
+			},
+			Process:               processBotMenu,
+			AuthTypes:             []string{"bot"},
+			RequiredConsoleEvents: []string{eventTypeBotMenuV6},
+		},
+	}
+}

events/approval/preconsume.go

@@ -0,0 +1,155 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package approval
+
+import (
+	"context"
+	"encoding/json"
+	"fmt"
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/event"
+)
+
+type approvalEventType string
+type approvalSubscriptionPath string
+
+type approvalSubscriptionConfig struct {
+	eventType     approvalEventType
+	subscribePath approvalSubscriptionPath
+}
+
+func approvalSubscriptionPreConsume(cfg approvalSubscriptionConfig) func(context.Context, event.APIClient, map[string]string) (func() error, error) {
+	return func(ctx context.Context, rt event.APIClient, params map[string]string) (func() error, error) {
+		if rt == nil {
+			return nil, errs.NewInternalError(errs.SubtypeUnknown,
+				"runtime API client is required for pre-consume subscription")
+		}
+
+		eventType := string(cfg.eventType)
+		subscribePath := string(cfg.subscribePath)
+		subscriptionTypes, err := approvalSubscriptionTypes(eventType, params)
+		if err != nil {
+			return nil, err
+		}
+
+		registered := make([]string, 0, len(subscriptionTypes))
+		for _, subscriptionType := range subscriptionTypes {
+			body := map[string]string{"subscription_type": subscriptionType}
+			if _, err := rt.CallAPI(ctx, "POST", subscribePath, body); err != nil {
+				return nil, approvalSubscriptionRegistrationError(eventType, registered, subscriptionType, err)
+			}
+			registered = append(registered, subscriptionType)
+		}
+
+		// Approval subscriptions are durable user-auth relations. Consuming events
+		// should not cancel that relation when this local process exits.
+		return nil, nil
+	}
+}
+
+func approvalSubscriptionTypes(eventType string, params map[string]string) ([]string, error) {
+	raw := strings.TrimSpace(params["subscription_type"])
+	if raw == "" {
+		return append([]string(nil), approvalAllSubscriptionTypes...), nil
+	}
+
+	values, err := parseApprovalSubscriptionTypeValues(raw)
+	if err != nil {
+		return nil, invalidApprovalSubscriptionTypeError(eventType, raw)
+	}
+
+	selected := make(map[string]bool, len(values))
+	for _, value := range values {
+		value = strings.TrimSpace(value)
+		switch value {
+		case approvalSubscriptionTypeInvolved, approvalSubscriptionTypeManaged:
+			selected[value] = true
+		default:
+			return nil, invalidApprovalSubscriptionTypeError(eventType, value)
+		}
+	}
+
+	result := make([]string, 0, len(selected))
+	for _, value := range approvalAllSubscriptionTypes {
+		if selected[value] {
+			result = append(result, value)
+		}
+	}
+	if len(result) == 0 {
+		return nil, invalidApprovalSubscriptionTypeError(eventType, raw)
+	}
+	return result, nil
+}
+
+func parseApprovalSubscriptionTypeValues(raw string) ([]string, error) {
+	if strings.HasPrefix(raw, "[") {
+		var values []string
+		if err := json.Unmarshal([]byte(raw), &values); err != nil {
+			return nil, err
+		}
+		return values, nil
+	}
+	return strings.Split(raw, ","), nil
+}
+
+func approvalSubscriptionRegistrationError(eventType string, registered []string, failed string, err error) error {
+	if err == nil {
+		return nil
+	}
+
+	msg := fmt.Sprintf(
+		"approval subscription pre-consume failed for EventKey %s: failed subscription_type %s",
+		eventType,
+		failed,
+	)
+	hint := fmt.Sprintf(
+		"no approval subscription relation was registered for EventKey %s; fix the cause and retry",
+		eventType,
+	)
+	if len(registered) > 0 {
+		msg = fmt.Sprintf(
+			"approval subscription pre-consume partially completed for EventKey %s: registered subscription_type(s) [%s], failed subscription_type %s",
+			eventType,
+			strings.Join(registered, ", "),
+			failed,
+		)
+		hint = fmt.Sprintf(
+			"server-side approval subscription relation(s) already registered for EventKey %s: %s; after fixing the cause, retry with --param subscription_type=%s to register the failed relation",
+			eventType,
+			strings.Join(registered, ", "),
+			failed,
+		)
+	}
+
+	if p, ok := errs.ProblemOf(err); ok {
+		if upstream := strings.TrimSpace(p.Message); upstream != "" {
+			p.Message = msg + ": " + upstream
+		} else {
+			p.Message = msg
+		}
+		if upstreamHint := strings.TrimSpace(p.Hint); upstreamHint != "" {
+			p.Hint = upstreamHint + "\n" + hint
+		} else {
+			p.Hint = hint
+		}
+		return err
+	}
+	return errs.NewInternalError(errs.SubtypeSDKError, "%s: %v", msg, err).
+		WithHint("%s", hint).
+		WithCause(err)
+}
+
+func invalidApprovalSubscriptionTypeError(eventType, value string) error {
+	return errs.NewValidationError(errs.SubtypeInvalidArgument,
+		"invalid subscription_type for EventKey %s: %q", eventType, value).
+		WithParam("--param").
+		WithHint("omit subscription_type to register both approval subscription relations, or pass --param subscription_type=%s, --param subscription_type=%s, or --param subscription_type=%s,%s; run `lark-cli event schema %s` for details",
+			approvalSubscriptionTypeInvolved,
+			approvalSubscriptionTypeManaged,
+			approvalSubscriptionTypeInvolved,
+			approvalSubscriptionTypeManaged,
+			eventType)
+}

events/approval/register.go

@@ -0,0 +1,179 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package approval registers Approval-domain EventKeys.
+package approval
+
+import (
+	"context"
+	"encoding/json"
+	"reflect"
+
+	"github.com/larksuite/cli/internal/event"
+)
+
+const (
+	eventTypeApprovalInstanceStatusChangedV4 = "approval.instance.status_changed_v4"
+	eventTypeApprovalTaskStatusChangedV4     = "approval.task.status_changed_v4"
+
+	pathApprovalInstancesSubscription = "/open-apis/approval/v4/instances/subscription"
+	pathApprovalTasksSubscription     = "/open-apis/approval/v4/tasks/subscription"
+
+	approvalSubscriptionTypeInvolved = "INVOLVED_APPROVAL"
+	approvalSubscriptionTypeManaged  = "MANAGED_APPROVAL"
+)
+
+var approvalAllSubscriptionTypes = []string{
+	approvalSubscriptionTypeInvolved,
+	approvalSubscriptionTypeManaged,
+}
+
+// Keys returns all Approval-domain EventKey definitions.
+func Keys() []event.KeyDefinition {
+	return []event.KeyDefinition{
+		{
+			Key:         eventTypeApprovalInstanceStatusChangedV4,
+			DisplayName: "Approval instance status changed",
+			Description: "Triggered after an approval instance status becomes visible to the requester or approval participants",
+			EventType:   eventTypeApprovalInstanceStatusChangedV4,
+			Params:      approvalSubscriptionParams(),
+			Schema: event.SchemaDef{
+				Custom: &event.SchemaSpec{Type: reflect.TypeOf(ApprovalInstanceStatusChangedV4Output{})},
+			},
+			Process: processApprovalInstanceStatusChanged,
+			PreConsume: approvalSubscriptionPreConsume(approvalSubscriptionConfig{
+				eventType:     eventTypeApprovalInstanceStatusChangedV4,
+				subscribePath: pathApprovalInstancesSubscription,
+			}),
+			Scopes: []string{"approval:instance:read"},
+			AuthTypes: []string{
+				"user",
+			},
+			RequiredConsoleEvents: []string{eventTypeApprovalInstanceStatusChangedV4},
+		},
+		{
+			Key:         eventTypeApprovalTaskStatusChangedV4,
+			DisplayName: "Approval task status changed",
+			Description: "Triggered after an approval task status becomes visible to the requester or task approver",
+			EventType:   eventTypeApprovalTaskStatusChangedV4,
+			Params:      approvalSubscriptionParams(),
+			Schema: event.SchemaDef{
+				Custom: &event.SchemaSpec{Type: reflect.TypeOf(ApprovalTaskStatusChangedV4Output{})},
+			},
+			Process: processApprovalTaskStatusChanged,
+			PreConsume: approvalSubscriptionPreConsume(approvalSubscriptionConfig{
+				eventType:     eventTypeApprovalTaskStatusChangedV4,
+				subscribePath: pathApprovalTasksSubscription,
+			}),
+			Scopes: []string{"approval:task:read"},
+			AuthTypes: []string{
+				"user",
+			},
+			RequiredConsoleEvents: []string{eventTypeApprovalTaskStatusChangedV4},
+		},
+	}
+}
+
+func approvalSubscriptionParams() []event.ParamDef {
+	return []event.ParamDef{
+		{
+			Name:        "subscription_type",
+			Type:        event.ParamMulti,
+			Description: "Approval subscription relation type(s) to register for the current authorized user. Omit to register both involved and managed approval relations.",
+			Values: []event.ParamValue{
+				{
+					Value: approvalSubscriptionTypeInvolved,
+					Desc:  "Receive events where the current user is the approval requester or approver.",
+				},
+				{
+					Value: approvalSubscriptionTypeManaged,
+					Desc:  "Receive events under approval definitions managed by the current user.",
+				},
+			},
+		},
+	}
+}
+
+func processApprovalInstanceStatusChanged(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
+	if raw == nil {
+		return nil, nil
+	}
+	var envelope struct {
+		Header struct {
+			EventID    string `json:"event_id"`
+			EventType  string `json:"event_type"`
+			CreateTime string `json:"create_time"`
+		} `json:"header"`
+		Event struct {
+			ApprovalCode string          `json:"approval_code"`
+			InstanceCode string          `json:"instance_code"`
+			ExternalID   string          `json:"external_id"`
+			Status       string          `json:"status"`
+			OperateTime  string          `json:"operate_time"`
+			StartUser    *ApprovalUserID `json:"start_user"`
+		} `json:"event"`
+	}
+	if err := json.Unmarshal(raw.Payload, &envelope); err != nil {
+		return raw.Payload, nil //nolint:nilerr // passthrough on malformed payload so consumers still see the event
+	}
+
+	out := &ApprovalInstanceStatusChangedV4Output{
+		Type:         envelope.Header.EventType,
+		EventID:      envelope.Header.EventID,
+		Timestamp:    envelope.Header.CreateTime,
+		ApprovalCode: envelope.Event.ApprovalCode,
+		InstanceCode: envelope.Event.InstanceCode,
+		ExternalID:   envelope.Event.ExternalID,
+		Status:       envelope.Event.Status,
+		OperateTime:  envelope.Event.OperateTime,
+		StartUser:    envelope.Event.StartUser,
+	}
+	if out.Type == "" {
+		out.Type = raw.EventType
+	}
+	return json.Marshal(out)
+}
+
+func processApprovalTaskStatusChanged(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
+	if raw == nil {
+		return nil, nil
+	}
+	var envelope struct {
+		Header struct {
+			EventID    string `json:"event_id"`
+			EventType  string `json:"event_type"`
+			CreateTime string `json:"create_time"`
+		} `json:"header"`
+		Event struct {
+			ApprovalCode   string          `json:"approval_code"`
+			InstanceCode   string          `json:"instance_code"`
+			TaskID         string          `json:"task_id"`
+			ExternalID     string          `json:"external_id"`
+			TaskExternalID string          `json:"task_external_id"`
+			AssignedUser   *ApprovalUserID `json:"assigned_user"`
+			Status         string          `json:"status"`
+			OperateTime    string          `json:"operate_time"`
+		} `json:"event"`
+	}
+	if err := json.Unmarshal(raw.Payload, &envelope); err != nil {
+		return raw.Payload, nil //nolint:nilerr // passthrough on malformed payload so consumers still see the event
+	}
+
+	out := &ApprovalTaskStatusChangedV4Output{
+		Type:           envelope.Header.EventType,
+		EventID:        envelope.Header.EventID,
+		Timestamp:      envelope.Header.CreateTime,
+		ApprovalCode:   envelope.Event.ApprovalCode,
+		InstanceCode:   envelope.Event.InstanceCode,
+		TaskID:         envelope.Event.TaskID,
+		ExternalID:     envelope.Event.ExternalID,
+		TaskExternalID: envelope.Event.TaskExternalID,
+		AssignedUser:   envelope.Event.AssignedUser,
+		Status:         envelope.Event.Status,
+		OperateTime:    envelope.Event.OperateTime,
+	}
+	if out.Type == "" {
+		out.Type = raw.EventType
+	}
+	return json.Marshal(out)
+}

events/approval/register_test.go

@@ -0,0 +1,654 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package approval
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"reflect"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/event"
+	"github.com/larksuite/cli/internal/event/schemas"
+)
+
+type recordedCall struct {
+	method string
+	path   string
+	body   interface{}
+}
+
+type fakeAPIClient struct {
+	calls     []recordedCall
+	err       error
+	errOnCall int
+}
+
+func (f *fakeAPIClient) CallAPI(_ context.Context, method, path string, body interface{}) (json.RawMessage, error) {
+	f.calls = append(f.calls, recordedCall{method: method, path: path, body: body})
+	if f.err != nil && (f.errOnCall == 0 || f.errOnCall == len(f.calls)) {
+		return nil, f.err
+	}
+	return json.RawMessage(`{}`), nil
+}
+
+func TestKeysApprovalMetadata(t *testing.T) {
+	keys := Keys()
+	if len(keys) != 2 {
+		t.Fatalf("len(Keys()) = %d, want 2", len(keys))
+	}
+
+	tests := []struct {
+		key        string
+		scope      string
+		schemaType reflect.Type
+		subscribe  string
+	}{
+		{
+			key:        eventTypeApprovalInstanceStatusChangedV4,
+			scope:      "approval:instance:read",
+			schemaType: reflect.TypeOf(ApprovalInstanceStatusChangedV4Output{}),
+			subscribe:  pathApprovalInstancesSubscription,
+		},
+		{
+			key:        eventTypeApprovalTaskStatusChangedV4,
+			scope:      "approval:task:read",
+			schemaType: reflect.TypeOf(ApprovalTaskStatusChangedV4Output{}),
+			subscribe:  pathApprovalTasksSubscription,
+		},
+	}
+
+	byKey := make(map[string]event.KeyDefinition, len(keys))
+	for _, def := range keys {
+		byKey[def.Key] = def
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.key, func(t *testing.T) {
+			def, ok := byKey[tc.key]
+			if !ok {
+				t.Fatalf("missing key %s", tc.key)
+			}
+			if def.EventType != tc.key {
+				t.Errorf("EventType = %q, want %q", def.EventType, tc.key)
+			}
+			if def.Schema.Custom == nil || def.Schema.Custom.Type != tc.schemaType {
+				t.Fatalf("Custom schema Type = %v, want %v", def.Schema.Custom, tc.schemaType)
+			}
+			if def.Schema.Native != nil {
+				t.Fatal("approval events must use Custom schema while SDK event types are not exported")
+			}
+			if def.Process == nil {
+				t.Fatal("Process must flatten raw V2 envelopes")
+			}
+			if def.PreConsume == nil {
+				t.Fatal("PreConsume must subscribe approval user-auth events")
+			}
+			if !reflect.DeepEqual(def.Scopes, []string{tc.scope}) {
+				t.Errorf("Scopes = %#v, want %q", def.Scopes, tc.scope)
+			}
+			if !reflect.DeepEqual(def.AuthTypes, []string{"user"}) {
+				t.Errorf("AuthTypes = %#v, want user", def.AuthTypes)
+			}
+			if !reflect.DeepEqual(def.RequiredConsoleEvents, []string{tc.key}) {
+				t.Errorf("RequiredConsoleEvents = %#v, want %q", def.RequiredConsoleEvents, tc.key)
+			}
+			assertSubscriptionParam(t, def.Params)
+		})
+	}
+}
+
+func assertSubscriptionParam(t *testing.T, params []event.ParamDef) {
+	t.Helper()
+	if len(params) != 1 {
+		t.Fatalf("len(params) = %d, want 1", len(params))
+	}
+	p := params[0]
+	if p.Name != "subscription_type" || p.Type != event.ParamMulti || p.Required || p.SubscriptionKey {
+		t.Fatalf("subscription_type param = %+v, want optional multi non-subscription-key param", p)
+	}
+	got := map[string]string{}
+	for _, v := range p.Values {
+		got[v.Value] = v.Desc
+	}
+	for _, want := range []string{approvalSubscriptionTypeInvolved, approvalSubscriptionTypeManaged} {
+		if got[want] == "" {
+			t.Errorf("subscription_type value %q missing or empty desc; values=%+v", want, p.Values)
+		}
+	}
+}
+
+type reflectedApprovalSchema struct {
+	Properties map[string]reflectedApprovalSchemaProperty `json:"properties"`
+}
+
+type reflectedApprovalSchemaProperty struct {
+	Format     string                                     `json:"format"`
+	Enum       []string                                   `json:"enum"`
+	Properties map[string]reflectedApprovalSchemaProperty `json:"properties"`
+}
+
+func TestApprovalSchemasAnnotations(t *testing.T) {
+	tests := []struct {
+		name         string
+		schemaType   reflect.Type
+		eventType    string
+		statusValues []string
+		userField    string
+	}{
+		{
+			name:         "instance",
+			schemaType:   reflect.TypeOf(ApprovalInstanceStatusChangedV4Output{}),
+			eventType:    eventTypeApprovalInstanceStatusChangedV4,
+			statusValues: []string{"PENDING", "APPROVED", "REJECTED", "CANCELED", "DELETED", "REVERTED", "OVERTIME_CLOSE", "OVERTIME_RECOVER"},
+			userField:    "start_user",
+		},
+		{
+			name:         "task",
+			schemaType:   reflect.TypeOf(ApprovalTaskStatusChangedV4Output{}),
+			eventType:    eventTypeApprovalTaskStatusChangedV4,
+			statusValues: []string{"REVERTED", "PENDING", "APPROVED", "REJECTED", "TRANSFERRED", "ROLLBACK", "DONE", "OVERTIME_CLOSE", "OVERTIME_RECOVER"},
+			userField:    "assigned_user",
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			var schema reflectedApprovalSchema
+			if err := json.Unmarshal(schemas.FromType(tc.schemaType), &schema); err != nil {
+				t.Fatalf("unmarshal schema: %v", err)
+			}
+			props := schema.Properties
+			eventTypeEnum := props["type"].Enum
+			if len(eventTypeEnum) != 1 || eventTypeEnum[0] != tc.eventType {
+				t.Fatalf("type enum = %v, want %s", eventTypeEnum, tc.eventType)
+			}
+			if got := props["timestamp"].Format; got != "timestamp_ms" {
+				t.Errorf("timestamp format = %v, want timestamp_ms", got)
+			}
+			assertEnumContains(t, props["status"].Enum, tc.statusValues)
+			if got := props["operate_time"].Format; got != "timestamp_ms" {
+				t.Errorf("event.operate_time format = %v, want timestamp_ms", got)
+			}
+
+			userProps := props[tc.userField].Properties
+			if got := userProps["open_id"].Format; got != "open_id" {
+				t.Errorf("%s.open_id format = %v, want open_id", tc.userField, got)
+			}
+			if got := userProps["union_id"].Format; got != "union_id" {
+				t.Errorf("%s.union_id format = %v, want union_id", tc.userField, got)
+			}
+			if got := userProps["user_id"].Format; got != "user_id" {
+				t.Errorf("%s.user_id format = %v, want user_id", tc.userField, got)
+			}
+		})
+	}
+}
+
+func assertEnumContains(t *testing.T, raw []string, wants []string) {
+	t.Helper()
+	got := make(map[string]bool, len(raw))
+	for _, v := range raw {
+		got[v] = true
+	}
+	for _, want := range wants {
+		if !got[want] {
+			t.Errorf("enum missing %q; enum=%v", want, raw)
+		}
+	}
+}
+
+func TestApprovalPreConsumeRegistersSubscriptionTypesWithoutCleanup(t *testing.T) {
+	tests := []struct {
+		name          string
+		eventType     string
+		subscribePath string
+		params        map[string]string
+		wantTypes     []string
+	}{
+		{
+			name:          "instance omitted subscription_type registers both",
+			eventType:     eventTypeApprovalInstanceStatusChangedV4,
+			subscribePath: pathApprovalInstancesSubscription,
+			wantTypes: []string{
+				approvalSubscriptionTypeInvolved,
+				approvalSubscriptionTypeManaged,
+			},
+		},
+		{
+			name:          "task explicit single managed",
+			eventType:     eventTypeApprovalTaskStatusChangedV4,
+			subscribePath: pathApprovalTasksSubscription,
+			params:        map[string]string{"subscription_type": approvalSubscriptionTypeManaged},
+			wantTypes:     []string{approvalSubscriptionTypeManaged},
+		},
+		{
+			name:          "task comma separated multi canonicalizes and deduplicates",
+			eventType:     eventTypeApprovalTaskStatusChangedV4,
+			subscribePath: pathApprovalTasksSubscription,
+			params: map[string]string{
+				"subscription_type": approvalSubscriptionTypeManaged + "," + approvalSubscriptionTypeInvolved + "," + approvalSubscriptionTypeManaged,
+			},
+			wantTypes: []string{
+				approvalSubscriptionTypeInvolved,
+				approvalSubscriptionTypeManaged,
+			},
+		},
+		{
+			name:          "instance json array multi",
+			eventType:     eventTypeApprovalInstanceStatusChangedV4,
+			subscribePath: pathApprovalInstancesSubscription,
+			params: map[string]string{
+				"subscription_type": `["MANAGED_APPROVAL","INVOLVED_APPROVAL"]`,
+			},
+			wantTypes: []string{
+				approvalSubscriptionTypeInvolved,
+				approvalSubscriptionTypeManaged,
+			},
+		},
+	}
+
+	for _, tc := range tests {
+		t.Run(tc.name, func(t *testing.T) {
+			pc := approvalSubscriptionPreConsume(approvalSubscriptionConfig{
+				eventType:     approvalEventType(tc.eventType),
+				subscribePath: approvalSubscriptionPath(tc.subscribePath),
+			})
+			rt := &fakeAPIClient{}
+			cleanup, err := pc(context.Background(), rt, tc.params)
+			if err != nil {
+				t.Fatalf("PreConsume returned error: %v", err)
+			}
+			if cleanup != nil {
+				t.Fatal("cleanup must be nil; approval consume must not unsubscribe on exit")
+			}
+			assertSubscriptionCalls(t, rt.calls, tc.subscribePath, tc.wantTypes)
+		})
+	}
+}
+
+func assertSubscriptionCalls(t *testing.T, got []recordedCall, wantPath string, wantTypes []string) {
+	t.Helper()
+	if len(got) != len(wantTypes) {
+		t.Fatalf("calls after pre-consume = %d, want %d; calls=%+v", len(got), len(wantTypes), got)
+	}
+	for i, wantType := range wantTypes {
+		assertCall(t, got[i], "POST", wantPath, map[string]string{"subscription_type": wantType})
+	}
+}
+
+func assertCall(t *testing.T, got recordedCall, wantMethod, wantPath string, wantBody interface{}) {
+	t.Helper()
+	if got.method != wantMethod {
+		t.Errorf("method = %q, want %q", got.method, wantMethod)
+	}
+	if got.path != wantPath {
+		t.Errorf("path = %q, want %q", got.path, wantPath)
+	}
+	if !reflect.DeepEqual(got.body, wantBody) {
+		t.Errorf("body = %#v, want %#v", got.body, wantBody)
+	}
+}
+
+func TestApprovalPreConsumeValidationErrors(t *testing.T) {
+	t.Run("nil runtime", func(t *testing.T) {
+		pc := approvalSubscriptionPreConsume(approvalSubscriptionConfig{
+			eventType: eventTypeApprovalInstanceStatusChangedV4,
+		})
+		_, err := pc(context.Background(), nil, map[string]string{"subscription_type": approvalSubscriptionTypeInvolved})
+		if err == nil {
+			t.Fatal("expected nil runtime error")
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok || p.Category != errs.CategoryInternal {
+			t.Fatalf("err = %T/%v, want typed internal error", err, err)
+		}
+	})
+
+	for _, raw := range []string{"BAD", "[]", `["INVOLVED_APPROVAL",3]`} {
+		t.Run("invalid subscription type "+raw, func(t *testing.T) {
+			pc := approvalSubscriptionPreConsume(approvalSubscriptionConfig{
+				eventType: eventTypeApprovalInstanceStatusChangedV4,
+			})
+			cleanup, err := pc(context.Background(), &fakeAPIClient{}, map[string]string{"subscription_type": raw})
+			if err == nil {
+				t.Fatal("expected invalid subscription_type error")
+			}
+			if cleanup != nil {
+				t.Fatal("cleanup must be nil on validation error")
+			}
+			var ve *errs.ValidationError
+			if !errors.As(err, &ve) {
+				t.Fatalf("err = %T/%v, want *errs.ValidationError", err, err)
+			}
+			if ve.Subtype != errs.SubtypeInvalidArgument || ve.Param != "--param" {
+				t.Errorf("subtype/param = %s/%q, want invalid_argument/--param", ve.Subtype, ve.Param)
+			}
+			if ve.Hint == "" {
+				t.Error("invalid subscription_type should carry a hint")
+			}
+		})
+	}
+
+	t.Run("partial registration failure reports registered and failed relation types", func(t *testing.T) {
+		upstream := errs.NewAPIError(errs.SubtypeServerError, "approval subscription API failed")
+		rt := &fakeAPIClient{err: upstream, errOnCall: 2}
+		pc := approvalSubscriptionPreConsume(approvalSubscriptionConfig{
+			eventType:     eventTypeApprovalTaskStatusChangedV4,
+			subscribePath: pathApprovalTasksSubscription,
+		})
+
+		cleanup, err := pc(context.Background(), rt, map[string]string{})
+		if err == nil {
+			t.Fatal("expected partial registration error")
+		}
+		if cleanup != nil {
+			t.Fatal("cleanup must be nil on registration error")
+		}
+		assertSubscriptionCalls(t, rt.calls, pathApprovalTasksSubscription, []string{
+			approvalSubscriptionTypeInvolved,
+			approvalSubscriptionTypeManaged,
+		})
+		p, ok := errs.ProblemOf(err)
+		if !ok {
+			t.Fatalf("err = %T/%v, want typed error", err, err)
+		}
+		if p.Category != errs.CategoryAPI || p.Subtype != errs.SubtypeServerError {
+			t.Fatalf("category/subtype = %s/%s, want api/server_error", p.Category, p.Subtype)
+		}
+		for _, want := range []string{
+			"registered subscription_type(s) [INVOLVED_APPROVAL]",
+			"failed subscription_type MANAGED_APPROVAL",
+		} {
+			if !strings.Contains(p.Message, want) {
+				t.Errorf("partial error message missing %q: %q", want, p.Message)
+			}
+		}
+		for _, want := range []string{
+			"already registered",
+			"--param subscription_type=MANAGED_APPROVAL",
+		} {
+			if !strings.Contains(p.Hint, want) {
+				t.Errorf("partial error hint missing %q: %q", want, p.Hint)
+			}
+		}
+	})
+}
+
+func TestApprovalSubscriptionRegistrationErrorVariants(t *testing.T) {
+	t.Run("nil error", func(t *testing.T) {
+		if err := approvalSubscriptionRegistrationError(eventTypeApprovalTaskStatusChangedV4, nil, approvalSubscriptionTypeInvolved, nil); err != nil {
+			t.Fatalf("nil cause returned error: %v", err)
+		}
+	})
+
+	t.Run("typed error with existing hint and empty message", func(t *testing.T) {
+		upstream := errs.NewAPIError(errs.SubtypeServerError, "").WithHint("retry later")
+		err := approvalSubscriptionRegistrationError(
+			eventTypeApprovalTaskStatusChangedV4,
+			nil,
+			approvalSubscriptionTypeInvolved,
+			upstream,
+		)
+		if err != upstream {
+			t.Fatalf("typed error should be annotated in place; got %T/%v", err, err)
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok {
+			t.Fatalf("err = %T/%v, want typed error", err, err)
+		}
+		if !strings.Contains(p.Message, "failed subscription_type INVOLVED_APPROVAL") {
+			t.Errorf("message missing failed relation: %q", p.Message)
+		}
+		for _, want := range []string{"retry later", "no approval subscription relation was registered"} {
+			if !strings.Contains(p.Hint, want) {
+				t.Errorf("hint missing %q: %q", want, p.Hint)
+			}
+		}
+	})
+
+	t.Run("untyped error is wrapped with retry context", func(t *testing.T) {
+		cause := errors.New("transport closed")
+		err := approvalSubscriptionRegistrationError(
+			eventTypeApprovalTaskStatusChangedV4,
+			nil,
+			approvalSubscriptionTypeInvolved,
+			cause,
+		)
+		if !errors.Is(err, cause) {
+			t.Fatalf("wrapped error should preserve cause; got %T/%v", err, err)
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok {
+			t.Fatalf("err = %T/%v, want typed error", err, err)
+		}
+		if p.Category != errs.CategoryInternal || p.Subtype != errs.SubtypeSDKError {
+			t.Fatalf("category/subtype = %s/%s, want internal/sdk_error", p.Category, p.Subtype)
+		}
+		if !strings.Contains(p.Hint, "no approval subscription relation was registered") {
+			t.Errorf("hint missing no-registration context: %q", p.Hint)
+		}
+	})
+}
+
+func TestProcessApprovalInstanceStatusChanged(t *testing.T) {
+	out := runApprovalInstanceStatusChanged(t, `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "evt_approval_instance_001",
+			"event_type": "approval.instance.status_changed_v4",
+			"create_time": "1710000000000"
+		},
+		"event": {
+			"approval_code": "approval_code_001",
+			"instance_code": "instance_code_001",
+			"external_id": "external_001",
+			"status": "PENDING",
+			"operate_time": "1666079207003",
+			"start_user": {
+				"open_id": "ou_start",
+				"union_id": "on_start",
+				"user_id": "user_start"
+			}
+		}
+	}`)
+
+	if out.Type != eventTypeApprovalInstanceStatusChangedV4 {
+		t.Errorf("Type = %q, want %q", out.Type, eventTypeApprovalInstanceStatusChangedV4)
+	}
+	if out.EventID != "evt_approval_instance_001" || out.Timestamp != "1710000000000" {
+		t.Errorf("EventID/Timestamp = %q/%q", out.EventID, out.Timestamp)
+	}
+	if out.ApprovalCode != "approval_code_001" || out.InstanceCode != "instance_code_001" {
+		t.Errorf("approval/instance code = %q/%q", out.ApprovalCode, out.InstanceCode)
+	}
+	if out.ExternalID != "external_001" || out.Status != "PENDING" || out.OperateTime != "1666079207003" {
+		t.Errorf("external/status/operate_time = %q/%q/%q", out.ExternalID, out.Status, out.OperateTime)
+	}
+	if out.StartUser == nil || out.StartUser.OpenID != "ou_start" || out.StartUser.UnionID != "on_start" || out.StartUser.UserID != "user_start" {
+		t.Fatalf("StartUser = %+v, want full user ids", out.StartUser)
+	}
+}
+
+func TestProcessApprovalTaskStatusChanged(t *testing.T) {
+	out := runApprovalTaskStatusChanged(t, `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "evt_approval_task_001",
+			"event_type": "approval.task.status_changed_v4",
+			"create_time": "1710000000001"
+		},
+		"event": {
+			"approval_code": "approval_code_002",
+			"instance_code": "instance_code_002",
+			"task_id": "task_001",
+			"external_id": "external_002",
+			"task_external_id": "task_external_001",
+			"status": "APPROVED",
+			"operate_time": "1666079207004",
+			"assigned_user": {
+				"open_id": "ou_assignee",
+				"union_id": "on_assignee",
+				"user_id": "user_assignee"
+			}
+		}
+	}`)
+
+	if out.Type != eventTypeApprovalTaskStatusChangedV4 {
+		t.Errorf("Type = %q, want %q", out.Type, eventTypeApprovalTaskStatusChangedV4)
+	}
+	if out.EventID != "evt_approval_task_001" || out.Timestamp != "1710000000001" {
+		t.Errorf("EventID/Timestamp = %q/%q", out.EventID, out.Timestamp)
+	}
+	if out.ApprovalCode != "approval_code_002" || out.InstanceCode != "instance_code_002" || out.TaskID != "task_001" {
+		t.Errorf("approval/instance/task = %q/%q/%q", out.ApprovalCode, out.InstanceCode, out.TaskID)
+	}
+	if out.ExternalID != "external_002" || out.TaskExternalID != "task_external_001" || out.Status != "APPROVED" || out.OperateTime != "1666079207004" {
+		t.Errorf("external/task_external/status/operate_time = %q/%q/%q/%q", out.ExternalID, out.TaskExternalID, out.Status, out.OperateTime)
+	}
+	if out.AssignedUser == nil || out.AssignedUser.OpenID != "ou_assignee" || out.AssignedUser.UnionID != "on_assignee" || out.AssignedUser.UserID != "user_assignee" {
+		t.Fatalf("AssignedUser = %+v, want full user ids", out.AssignedUser)
+	}
+}
+
+func TestProcessApprovalStatusChangedUsesRawEventTypeFallback(t *testing.T) {
+	instance := runApprovalInstanceStatusChanged(t, `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "evt_approval_instance_fallback",
+			"create_time": "1710000000002"
+		},
+		"event": {
+			"approval_code": "approval_code_fallback",
+			"instance_code": "instance_code_fallback",
+			"status": "APPROVED",
+			"operate_time": "1666079207005"
+		}
+	}`)
+	if instance.Type != eventTypeApprovalInstanceStatusChangedV4 {
+		t.Errorf("instance Type fallback = %q, want %q", instance.Type, eventTypeApprovalInstanceStatusChangedV4)
+	}
+
+	task := runApprovalTaskStatusChanged(t, `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "evt_approval_task_fallback",
+			"create_time": "1710000000003"
+		},
+		"event": {
+			"approval_code": "approval_code_fallback",
+			"instance_code": "instance_code_fallback",
+			"task_id": "task_fallback",
+			"status": "DONE",
+			"operate_time": "1666079207006"
+		}
+	}`)
+	if task.Type != eventTypeApprovalTaskStatusChangedV4 {
+		t.Errorf("task Type fallback = %q, want %q", task.Type, eventTypeApprovalTaskStatusChangedV4)
+	}
+}
+
+func TestProcessApprovalStatusChangedMalformedPayloadPassthrough(t *testing.T) {
+	for _, tc := range []struct {
+		name      string
+		eventType string
+		process   event.ProcessFunc
+	}{
+		{"instance", eventTypeApprovalInstanceStatusChangedV4, processApprovalInstanceStatusChanged},
+		{"task", eventTypeApprovalTaskStatusChangedV4, processApprovalTaskStatusChanged},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			raw := &event.RawEvent{
+				EventType: tc.eventType,
+				Payload:   json.RawMessage(`not json`),
+				Timestamp: time.Now(),
+			}
+			got, err := tc.process(context.Background(), nil, raw, nil)
+			if err != nil {
+				t.Fatalf("Process should swallow parse errors, got %v", err)
+			}
+			if string(got) != "not json" {
+				t.Errorf("malformed fallback output = %q, want original bytes", string(got))
+			}
+		})
+	}
+}
+
+func TestProcessApprovalStatusChangedNilRaw(t *testing.T) {
+	for _, tc := range []struct {
+		name    string
+		process event.ProcessFunc
+	}{
+		{"instance", processApprovalInstanceStatusChanged},
+		{"task", processApprovalTaskStatusChanged},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			got, err := tc.process(context.Background(), nil, nil, nil)
+			if err != nil {
+				t.Fatalf("Process nil raw returned error: %v", err)
+			}
+			if got != nil {
+				t.Fatalf("Process nil raw output = %s, want nil", string(got))
+			}
+		})
+	}
+}
+
+func runApprovalInstanceStatusChanged(t *testing.T, payload string) ApprovalInstanceStatusChangedV4Output {
+	t.Helper()
+	raw := &event.RawEvent{
+		EventType: eventTypeApprovalInstanceStatusChangedV4,
+		Payload:   json.RawMessage(payload),
+		Timestamp: time.Now(),
+	}
+	got, err := processApprovalInstanceStatusChanged(context.Background(), nil, raw, nil)
+	if err != nil {
+		t.Fatalf("Process returned error: %v", err)
+	}
+	var out ApprovalInstanceStatusChangedV4Output
+	if err := json.Unmarshal(got, &out); err != nil {
+		t.Fatalf("Process output is not valid instance JSON: %v\nraw=%s", err, string(got))
+	}
+	return out
+}
+
+func runApprovalTaskStatusChanged(t *testing.T, payload string) ApprovalTaskStatusChangedV4Output {
+	t.Helper()
+	raw := &event.RawEvent{
+		EventType: eventTypeApprovalTaskStatusChangedV4,
+		Payload:   json.RawMessage(payload),
+		Timestamp: time.Now(),
+	}
+	got, err := processApprovalTaskStatusChanged(context.Background(), nil, raw, nil)
+	if err != nil {
+		t.Fatalf("Process returned error: %v", err)
+	}
+	var out ApprovalTaskStatusChangedV4Output
+	if err := json.Unmarshal(got, &out); err != nil {
+		t.Fatalf("Process output is not valid task JSON: %v\nraw=%s", err, string(got))
+	}
+	return out
+}
+
+func TestApprovalKeysRegisterCleanly(t *testing.T) {
+	for _, key := range []string{eventTypeApprovalInstanceStatusChangedV4, eventTypeApprovalTaskStatusChangedV4} {
+		event.UnregisterKeyForTest(key)
+		t.Cleanup(func() { event.UnregisterKeyForTest(key) })
+	}
+
+	for _, def := range Keys() {
+		event.RegisterKey(def)
+	}
+	for _, key := range []string{eventTypeApprovalInstanceStatusChangedV4, eventTypeApprovalTaskStatusChangedV4} {
+		if _, ok := event.Lookup(key); !ok {
+			t.Fatalf("event.Lookup(%q) not registered", key)
+		}
+	}
+}
+
+var _ event.APIClient = (*fakeAPIClient)(nil)

events/approval/types.go

@@ -0,0 +1,42 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package approval
+
+// ApprovalUserID identifies a user in the three Lark ID formats included by
+// approval status-change events.
+type ApprovalUserID struct {
+	OpenID  string `json:"open_id,omitempty"  desc:"User open_id; prefixed with ou_" kind:"open_id"`
+	UnionID string `json:"union_id,omitempty" desc:"User union_id"                  kind:"union_id"`
+	UserID  string `json:"user_id,omitempty"  desc:"User id within the tenant"       kind:"user_id"`
+}
+
+// ApprovalInstanceStatusChangedV4Output is the flattened shape for
+// approval.instance.status_changed_v4.
+type ApprovalInstanceStatusChangedV4Output struct {
+	Type         string          `json:"type"                    desc:"Event type; always approval.instance.status_changed_v4" enum:"approval.instance.status_changed_v4"`
+	EventID      string          `json:"event_id,omitempty"      desc:"Globally unique event ID; safe for deduplication"`
+	Timestamp    string          `json:"timestamp,omitempty"     desc:"Event delivery time (ms timestamp string); taken from header.create_time when present" kind:"timestamp_ms"`
+	ApprovalCode string          `json:"approval_code,omitempty" desc:"Approval definition code; not a subscription dimension"`
+	InstanceCode string          `json:"instance_code,omitempty" desc:"Approval instance code"`
+	ExternalID   string          `json:"external_id,omitempty"   desc:"Third-party approval instance id; present only for third-party approvals"`
+	Status       string          `json:"status,omitempty"        desc:"Approval instance status" enum:"PENDING,APPROVED,REJECTED,CANCELED,DELETED,REVERTED,OVERTIME_CLOSE,OVERTIME_RECOVER"`
+	OperateTime  string          `json:"operate_time,omitempty"  desc:"Status change time in milliseconds" kind:"timestamp_ms"`
+	StartUser    *ApprovalUserID `json:"start_user,omitempty"    desc:"Approval instance starter; omitted when unavailable"`
+}
+
+// ApprovalTaskStatusChangedV4Output is the flattened shape for
+// approval.task.status_changed_v4.
+type ApprovalTaskStatusChangedV4Output struct {
+	Type           string          `json:"type"                      desc:"Event type; always approval.task.status_changed_v4" enum:"approval.task.status_changed_v4"`
+	EventID        string          `json:"event_id,omitempty"        desc:"Globally unique event ID; safe for deduplication"`
+	Timestamp      string          `json:"timestamp,omitempty"       desc:"Event delivery time (ms timestamp string); taken from header.create_time when present" kind:"timestamp_ms"`
+	ApprovalCode   string          `json:"approval_code,omitempty"     desc:"Approval definition code; not a subscription dimension"`
+	InstanceCode   string          `json:"instance_code,omitempty"     desc:"Approval instance code"`
+	TaskID         string          `json:"task_id,omitempty"           desc:"Approval task id"`
+	ExternalID     string          `json:"external_id,omitempty"       desc:"Third-party approval external id; present only for third-party approvals"`
+	TaskExternalID string          `json:"task_external_id,omitempty"  desc:"Third-party approval task external id; present only when emitted by the upstream service"`
+	AssignedUser   *ApprovalUserID `json:"assigned_user,omitempty"     desc:"Task assignee or operator user ids; omitted for automatic flows without an operator"`
+	Status         string          `json:"status,omitempty"            desc:"Approval task status" enum:"REVERTED,PENDING,APPROVED,REJECTED,TRANSFERRED,ROLLBACK,DONE,OVERTIME_CLOSE,OVERTIME_RECOVER"`
+	OperateTime    string          `json:"operate_time,omitempty"      desc:"Status change time in milliseconds" kind:"timestamp_ms"`
+}

events/im/message_receive.go

@@ -13,17 +13,29 @@ import (
 
 // ImMessageReceiveOutput is the flattened shape for im.message.receive_v1; `desc` tags drive the reflected schema.
 type ImMessageReceiveOutput struct {
-	Type        string `json:"type"                   desc:"Event type; always im.message.receive_v1"`
-	EventID     string `json:"event_id,omitempty"     desc:"Globally unique event ID; safe for deduplication"`
-	Timestamp   string `json:"timestamp,omitempty"    desc:"Event delivery time (ms timestamp string); prefers header.create_time"                                                                                                              kind:"timestamp_ms"`
-	ID          string `json:"id,omitempty"           desc:"Message ID (legacy alias of message_id, kept for compatibility)"                                                                                                                     kind:"message_id"`
-	MessageID   string `json:"message_id,omitempty"   desc:"Message ID; prefixed with om_"                                                                                                                                                       kind:"message_id"`
-	CreateTime  string `json:"create_time,omitempty"  desc:"Message creation time (ms timestamp string)"                                                                                                                                         kind:"timestamp_ms"`
-	ChatID      string `json:"chat_id,omitempty"      desc:"Chat/conversation ID; prefixed with oc_"                                                                                                                                             kind:"chat_id"`
-	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."`
+	Type        string          `json:"type"                   desc:"Event type; always im.message.receive_v1"`
+	EventID     string          `json:"event_id,omitempty"     desc:"Event delivery ID. Do not use as the message deduplication key; use message_id instead."`
+	Timestamp   string          `json:"timestamp,omitempty"    desc:"Event delivery time (ms timestamp string); prefers header.create_time"                                                                                                              kind:"timestamp_ms"`
+	ID          string          `json:"id,omitempty"           desc:"Message ID (legacy alias of message_id, kept for compatibility)"                                                                                                                     kind:"message_id"`
+	MessageID   string          `json:"message_id,omitempty"   desc:"Message ID; prefixed with om_. Recommended idempotency key for im.message.receive_v1 consumers."                                                                                     kind:"message_id"`
+	CreateTime  string          `json:"create_time,omitempty"  desc:"Message creation time (ms timestamp string)"                                                                                                                                         kind:"timestamp_ms"`
+	UpdateTime  string          `json:"update_time,omitempty"  desc:"Message update time (ms timestamp string); emitted only when different from create_time"                                                                                              kind:"timestamp_ms"`
+	ChatID      string          `json:"chat_id,omitempty"      desc:"Chat/conversation ID; prefixed with oc_"                                                                                                                                             kind:"chat_id"`
+	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"`
+	SenderType  string          `json:"sender_type,omitempty"  desc:"Sender type"                                                                                                                                                                         enum:"user,bot"`
+	RootID      string          `json:"root_id,omitempty"      desc:"Root message ID of the reply/thread context, when present"                                                                                                                           kind:"message_id"`
+	ThreadID    string          `json:"thread_id,omitempty"    desc:"Thread ID, when present"`
+	ReplyTo     string          `json:"reply_to,omitempty"     desc:"Parent message ID of the direct reply context, when present"                                                                                                                         kind:"message_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."`
+	Mentions    []MentionOutput `json:"mentions,omitempty" desc:"Compact mentions aligned with im +messages-mget"`
+}
+
+type MentionOutput struct {
+	Key  string `json:"key,omitempty"  desc:"Mention placeholder key, for example @_user_1"`
+	ID   string `json:"id,omitempty"   desc:"Mentioned user open_id; prefixed with ou_"        kind:"open_id"`
+	Name string `json:"name,omitempty" desc:"Mentioned display name"`
 }
 
 func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
@@ -36,15 +48,20 @@ func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.Ra
 		Event struct {
 			Message struct {
 				MessageID   string        `json:"message_id"`
+				RootID      string        `json:"root_id"`
+				ParentID    string        `json:"parent_id"`
+				ThreadID    string        `json:"thread_id"`
 				ChatID      string        `json:"chat_id"`
 				ChatType    string        `json:"chat_type"`
 				MessageType string        `json:"message_type"`
 				Content     string        `json:"content"`
 				CreateTime  string        `json:"create_time"`
+				UpdateTime  string        `json:"update_time"`
 				Mentions    []interface{} `json:"mentions"`
 			} `json:"message"`
 			Sender struct {
-				SenderID struct {
+				SenderType string `json:"sender_type"`
+				SenderID   struct {
 					OpenID string `json:"open_id"`
 				} `json:"sender_id"`
 			} `json:"sender"`
@@ -81,7 +98,54 @@ func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.Ra
 		ChatType:    msg.ChatType,
 		MessageType: msg.MessageType,
 		SenderID:    envelope.Event.Sender.SenderID.OpenID,
+		SenderType:  envelope.Event.Sender.SenderType,
+		RootID:      msg.RootID,
+		ThreadID:    msg.ThreadID,
+		ReplyTo:     msg.ParentID,
 		Content:     content,
+		Mentions:    compactMentions(msg.Mentions),
+	}
+	if msg.UpdateTime != "" && msg.UpdateTime != msg.CreateTime {
+		out.UpdateTime = msg.UpdateTime
 	}
 	return json.Marshal(out)
 }
+
+func compactMentions(mentions []interface{}) []MentionOutput {
+	if len(mentions) == 0 {
+		return nil
+	}
+	out := make([]MentionOutput, 0, len(mentions))
+	for _, raw := range mentions {
+		item, _ := raw.(map[string]interface{})
+		mention := MentionOutput{
+			Key:  stringField(item, "key"),
+			ID:   mentionOpenID(item["id"]),
+			Name: stringField(item, "name"),
+		}
+		if mention.Key != "" || mention.ID != "" || mention.Name != "" {
+			out = append(out, mention)
+		}
+	}
+	if len(out) == 0 {
+		return nil
+	}
+	return out
+}
+
+func stringField(m map[string]interface{}, key string) string {
+	v, _ := m[key].(string)
+	return v
+}
+
+func mentionOpenID(raw interface{}) string {
+	switch v := raw.(type) {
+	case map[string]interface{}:
+		openID, _ := v["open_id"].(string)
+		return openID
+	case string:
+		return v
+	default:
+		return ""
+	}
+}

events/im/message_receive_test.go

@@ -84,19 +84,32 @@ func TestProcessImMessageReceive_Text(t *testing.T) {
 		},
 		"event": {
 			"sender": {
+				"sender_type": "user",
 				"sender_id": {"open_id": "ou_sender"}
 			},
 			"message": {
 				"message_id":   "om_text_001",
+				"root_id":      "om_root_001",
+				"parent_id":    "om_parent_001",
+				"thread_id":    "omt_thread_001",
 				"chat_id":      "oc_chat",
 				"chat_type":    "p2p",
 				"message_type": "text",
 				"create_time":  "1776409468987",
-				"content":      "{\"text\":\"hello there\"}"
+				"update_time":  "1776409469999",
+				"content":      "{\"text\":\"hello @_user_1\"}",
+				"mentions": [
+					{
+						"key": "@_user_1",
+						"id": {"open_id": "ou_mentioned"},
+						"name": "Alice"
+					}
+				]
 			}
 		}
 	}`
 	out := runReceive(t, payload)
+	outMap := runReceiveMap(t, payload)
 
 	if out.Type != "im.message.receive_v1" {
 		t.Errorf("Type = %q", out.Type)
@@ -110,12 +123,69 @@ func TestProcessImMessageReceive_Text(t *testing.T) {
 	if out.SenderID != "ou_sender" {
 		t.Errorf("SenderID = %q", out.SenderID)
 	}
-	if out.Content != "hello there" {
-		t.Errorf("Content = %q, want \"hello there\"", out.Content)
+	if out.Content != "hello @Alice" {
+		t.Errorf("Content = %q, want \"hello @Alice\"", out.Content)
 	}
 	if out.Timestamp != "1776409469273" {
 		t.Errorf("Timestamp = %q", out.Timestamp)
 	}
+	for field, want := range map[string]string{
+		"sender_type": "user",
+		"root_id":     "om_root_001",
+		"thread_id":   "omt_thread_001",
+		"reply_to":    "om_parent_001",
+		"update_time": "1776409469999",
+	} {
+		if got, _ := outMap[field].(string); got != want {
+			t.Errorf("%s = %q, want %q", field, got, want)
+		}
+	}
+	mentions, _ := outMap["mentions"].([]interface{})
+	if len(mentions) != 1 {
+		t.Fatalf("mentions length = %d, want 1: %#v", len(mentions), outMap["mentions"])
+	}
+	mention, _ := mentions[0].(map[string]interface{})
+	for field, want := range map[string]string{
+		"key":  "@_user_1",
+		"id":   "ou_mentioned",
+		"name": "Alice",
+	} {
+		if got, _ := mention[field].(string); got != want {
+			t.Errorf("mentions[0].%s = %q, want %q", field, got, want)
+		}
+	}
+}
+
+func TestProcessImMessageReceive_OmitsUnchangedUpdateTime(t *testing.T) {
+	payload := `{
+		"schema": "2.0",
+		"header": {
+			"event_id": "ev_test_text",
+			"event_type": "im.message.receive_v1",
+			"create_time": "1776409469273",
+			"app_id": "cli_test"
+		},
+		"event": {
+			"sender": {
+				"sender_type": "user",
+				"sender_id": {"open_id": "ou_sender"}
+			},
+			"message": {
+				"message_id":   "om_text_001",
+				"chat_id":      "oc_chat",
+				"chat_type":    "p2p",
+				"message_type": "text",
+				"create_time":  "1776409468987",
+				"update_time":  "1776409468987",
+				"content":      "{\"text\":\"hello there\"}"
+			}
+		}
+	}`
+	outMap := runReceiveMap(t, payload)
+
+	if _, ok := outMap["update_time"]; ok {
+		t.Errorf("update_time should be omitted when it equals create_time: %#v", outMap)
+	}
 }
 
 func TestProcessImMessageReceive_Interactive(t *testing.T) {
@@ -188,3 +258,22 @@ func runReceive(t *testing.T, payload string) ImMessageReceiveOutput {
 	}
 	return out
 }
+
+func runReceiveMap(t *testing.T, payload string) map[string]interface{} {
+	t.Helper()
+	raw := &event.RawEvent{
+		EventID:   "ev_test",
+		EventType: "im.message.receive_v1",
+		Payload:   json.RawMessage(payload),
+		Timestamp: time.Now(),
+	}
+	got, err := processImMessageReceive(context.Background(), nil, raw, nil)
+	if err != nil {
+		t.Fatalf("Process error: %v", err)
+	}
+	var out map[string]interface{}
+	if err := json.Unmarshal(got, &out); err != nil {
+		t.Fatalf("Process output is not valid JSON: %v\nraw=%s", err, string(got))
+	}
+	return out
+}

events/register.go

@@ -5,6 +5,8 @@
 package events
 
 import (
+	"github.com/larksuite/cli/events/application"
+	"github.com/larksuite/cli/events/approval"
 	"github.com/larksuite/cli/events/im"
 	"github.com/larksuite/cli/events/minutes"
 	"github.com/larksuite/cli/events/task"
@@ -16,6 +18,8 @@ import (
 // Mail is intentionally omitted in this phase.
 func init() {
 	all := [][]event.KeyDefinition{
+		application.Keys(),
+		approval.Keys(),
 		im.Keys(),
 		minutes.Keys(),
 		task.Keys(),

extension/credential/env/env.go

@@ -9,6 +9,7 @@ import (
 	"os"
 
 	"github.com/larksuite/cli/extension/credential"
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/envvars"
 )
 
@@ -41,10 +42,7 @@ func (p *Provider) ResolveAccount(ctx context.Context) (*credential.Account, err
 			Reason:   envvars.CliAppID + " is set but no app secret or access token is available",
 		}
 	}
-	brand := credential.Brand(os.Getenv(envvars.CliBrand))
-	if brand == "" {
-		brand = credential.BrandFeishu
-	}
+	brand := credential.Brand(core.ParseBrand(os.Getenv(envvars.CliBrand)))
 	acct := &credential.Account{AppID: appID, AppSecret: appSecret, Brand: brand}
 
 	switch id := credential.Identity(os.Getenv(envvars.CliDefaultAs)); id {

extension/credential/env/env_test.go

@@ -22,13 +22,13 @@ func TestProvider_Name(t *testing.T) {
 func TestResolveAccount_BothSet(t *testing.T) {
 	t.Setenv(envvars.CliAppID, "cli_test")
 	t.Setenv(envvars.CliAppSecret, "secret_test")
-	t.Setenv(envvars.CliBrand, "feishu")
+	t.Setenv(envvars.CliBrand, " LARK ")
 
 	acct, err := (&Provider{}).ResolveAccount(context.Background())
 	if err != nil {
 		t.Fatal(err)
 	}
-	if acct.AppID != "cli_test" || acct.AppSecret != "secret_test" || acct.Brand != "feishu" {
+	if acct.AppID != "cli_test" || acct.AppSecret != "secret_test" || acct.Brand != "lark" {
 		t.Errorf("unexpected: %+v", acct)
 	}
 }

extension/credential/sidecar/provider.go

@@ -16,6 +16,7 @@ import (
 	"os"
 
 	"github.com/larksuite/cli/extension/credential"
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/envvars"
 	"github.com/larksuite/cli/sidecar"
 )
@@ -58,10 +59,7 @@ func (p *Provider) ResolveAccount(ctx context.Context) (*credential.Account, err
 		}
 	}
 
-	brand := credential.Brand(os.Getenv(envvars.CliBrand))
-	if brand == "" {
-		brand = credential.BrandFeishu
-	}
+	brand := credential.Brand(core.ParseBrand(os.Getenv(envvars.CliBrand)))
 
 	acct := &credential.Account{
 		AppID:     appID,

extension/credential/sidecar/provider_test.go

@@ -56,7 +56,7 @@ func TestResolveAccount_Active(t *testing.T) {
 	setEnv(t, envvars.CliAuthProxy, "http://127.0.0.1:16384")
 	setEnv(t, envvars.CliProxyKey, "test-key")
 	setEnv(t, envvars.CliAppID, "cli_test123")
-	setEnv(t, envvars.CliBrand, "lark")
+	setEnv(t, envvars.CliBrand, " LARK ")
 	unsetEnv(t, envvars.CliDefaultAs)
 	unsetEnv(t, envvars.CliStrictMode)
 

go.mod

@@ -7,6 +7,8 @@ require (
 	github.com/bmatcuk/doublestar/v4 v4.10.0
 	github.com/charmbracelet/huh v1.0.0
 	github.com/charmbracelet/lipgloss v1.1.0
+	github.com/facebookincubator/flog v0.0.0-20190930132826-d2511d0ce33c
+	github.com/facebookincubator/sks v0.0.0-20251112220143-6823f23937b4
 	github.com/gofrs/flock v0.8.1
 	github.com/google/uuid v1.6.0
 	github.com/itchyny/gojq v0.12.17
@@ -27,7 +29,10 @@ require (
 	gopkg.in/yaml.v3 v3.0.1
 )
 
+require github.com/ebitengine/purego v0.10.1
+
 require (
+	github.com/StackExchange/wmi v1.2.1 // indirect
 	github.com/atotto/clipboard v0.1.4 // indirect
 	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
 	github.com/catppuccin/go v0.3.0 // indirect
@@ -42,12 +47,21 @@ 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/go-ole/go-ole v1.2.5 // indirect
 	github.com/godbus/dbus/v5 v5.2.2 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/btree v1.1.2 // indirect
+	github.com/google/certificate-transparency-go v1.1.8 // indirect
+	github.com/google/certtostore v1.0.6 // indirect
+	github.com/google/deck v0.0.0-20230104221208-105ad94aa8ae // indirect
+	github.com/google/go-attestation v0.5.1 // indirect
+	github.com/google/go-tpm v0.9.0 // indirect
+	github.com/google/go-tspi v0.3.0 // 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/jgoguen/go-utils v0.0.0-20200211015258-b42ad41486fd // indirect
 	github.com/jtolds/gls v4.20.0+incompatible // indirect
 	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.20 // indirect
@@ -57,10 +71,12 @@ 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/peterbourgon/diskv v2.0.1+incompatible // 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
+	golang.org/x/crypto v0.31.0 // 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/StackExchange/wmi v1.2.1 h1:VIkavFPXSjcnS+O8yTq7NI32k0R5Aj+v39y29VYDOSA=
+github.com/StackExchange/wmi v1.2.1/go.mod h1:rcmrprowKIVzvc+NUiLncP2uuArMWLCbu9SBzvHz7e8=
 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=
@@ -50,14 +52,42 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/dustin/go-humanize v1.0.1 h1:GzkhY7T5VNhEkwH0PVJgjz+fX1rhBrR7pRT3mDkpeCY=
 github.com/dustin/go-humanize v1.0.1/go.mod h1:Mu1zIs6XwVuF/gI1OepvI0qD18qycQx+mFykh5fBlto=
+github.com/ebitengine/purego v0.10.1 h1:dewVBCBT2GaMu1SrNTYxQhgQBethzfhiwvZiLGP/qyY=
+github.com/ebitengine/purego v0.10.1/go.mod h1:iIjxzd6CiRiOG0UyXP+V1+jWqUXVjPKLAI0mRfJZTmQ=
 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/facebookincubator/flog v0.0.0-20190930132826-d2511d0ce33c h1:KqlxcP2nuOcMjudCvK0qME2K/aFBDH+xcvYv7HYQaYc=
+github.com/facebookincubator/flog v0.0.0-20190930132826-d2511d0ce33c/go.mod h1:QGzNH9ujQ2ZUr/CjDGZGWeDAVStrWNjHeEcjJL96Nuk=
+github.com/facebookincubator/sks v0.0.0-20251112220143-6823f23937b4 h1:z9oNXvtDZv73Rg8UjFhu+wMtDvGkhLm1NMTwZQ68gOM=
+github.com/facebookincubator/sks v0.0.0-20251112220143-6823f23937b4/go.mod h1:FEWpPBUpkMwxqAbprURvgWgdwjeGkge5QFDaZBsfRHQ=
+github.com/go-ole/go-ole v1.2.5 h1:t4MGB5xEDZvXI+0rMjjsfBsD7yAgp/s9ZDkL1JndXwY=
+github.com/go-ole/go-ole v1.2.5/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 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/btree v1.0.0/go.mod h1:lNA+9X1NB3Zf8V7Ke586lFgjr2dZNuvo3lPJSGZ5JPQ=
+github.com/google/btree v1.1.2 h1:xf4v41cLI2Z6FxbKm+8Bu+m8ifhj15JuZ9sa0jZCMUU=
+github.com/google/btree v1.1.2/go.mod h1:qOPhT0dTNdNzV6Z/lhRX0YXUafgPLFUh+gZMl761Gm4=
+github.com/google/certificate-transparency-go v1.0.21/go.mod h1:QeJfpSbVSfYc7RgB3gJFj9cbuQMMchQxrWXz8Ruopmg=
+github.com/google/certificate-transparency-go v1.1.8 h1:LGYKkgZF7satzgTak9R4yzfJXEeYVAjV6/EAEJOf1to=
+github.com/google/certificate-transparency-go v1.1.8/go.mod h1:bV/o8r0TBKRf1X//iiiSgWrvII4d7/8OiA+3vG26gI8=
+github.com/google/certtostore v1.0.6 h1:LlCIgyTvDxTlcncMPTSYZGo6lCsiHzO6Dy7ff6ltk/0=
+github.com/google/certtostore v1.0.6/go.mod h1:2N0ZPLkGvQWhYvXaiBGq02r71fnSLfq78VKIWQHr1wo=
+github.com/google/deck v0.0.0-20230104221208-105ad94aa8ae h1:Iy1Ad7L9qPtNAFJad+Ch2kwDXrcwu7QUBR0bfChjnEM=
+github.com/google/deck v0.0.0-20230104221208-105ad94aa8ae/go.mod h1:DoDv8G58DuLNZF0KysYn0bA/6ZWhmRW3fZE2VnGEH0w=
+github.com/google/go-attestation v0.5.1 h1:jqtOrLk5MNdliTKjPbIPrAaRKJaKW+0LIU2n/brJYms=
+github.com/google/go-attestation v0.5.1/go.mod h1:KqGatdUhg5kPFkokyzSBDxwSCFyRgIgtRkMp6c3lOBQ=
+github.com/google/go-cmp v0.6.0 h1:ofyhxvXcZhMsU5ulbFiLKl/XBFqE1GSq7atu8tAmTRI=
+github.com/google/go-cmp v0.6.0/go.mod h1:17dUlkBOakJ0+DkrSSNjCkIjxS6bF9zb3elmeNGIjoY=
+github.com/google/go-tpm v0.9.0 h1:sQF6YqWMi+SCXpsmS3fd21oPy/vSddwZry4JnmltHVk=
+github.com/google/go-tpm v0.9.0/go.mod h1:FkNVkc6C+IsvDI9Jw1OveJmxGZUUaKxtrpOS47QWKfU=
+github.com/google/go-tpm-tools v0.4.2 h1:iyaCPKt2N5Rd0yz0G8ANa022SgCNZkMpp+db6QELtvI=
+github.com/google/go-tpm-tools v0.4.2/go.mod h1:fGUDZu4tw3V4hUVuFHmiYgRd0c58/IXivn9v3Ea/ck4=
+github.com/google/go-tspi v0.3.0 h1:ADtq8RKfP+jrTyIWIZDIYcKOMecRqNJFOew2IT0Inus=
+github.com/google/go-tspi v0.3.0/go.mod h1:xfMGI3G0PhxCdNVcYr1C4C+EizojDg/TXuX5by8CiHI=
 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=
@@ -70,6 +100,8 @@ github.com/itchyny/gojq v0.12.17 h1:8av8eGduDb5+rvEdaOO+zQUjA04MS0m3Ps8HiD+fceg=
 github.com/itchyny/gojq v0.12.17/go.mod h1:WBrEMkgAfAGO1LUcGOckBl5O726KPp+OlkKug0I/FEY=
 github.com/itchyny/timefmt-go v0.1.6 h1:ia3s54iciXDdzWzwaVKXZPbiXzxxnv1SPGFfM/myJ5Q=
 github.com/itchyny/timefmt-go v0.1.6/go.mod h1:RRDZYC5s9ErkjQvTvvU7keJjxUYzIISJGxm9/mAERQg=
+github.com/jgoguen/go-utils v0.0.0-20200211015258-b42ad41486fd h1:E3y4CkzAXArgOQAw9gzW0Exe7XQqF4MYH3rCYprAj+Q=
+github.com/jgoguen/go-utils v0.0.0-20200211015258-b42ad41486fd/go.mod h1:ayRB9iNq3dqzUb9oW2JkoVQkDBkJ88NJb66OH13CKSk=
 github.com/jtolds/gls v4.20.0+incompatible h1:xdiiI2gbIgH/gLH7ADydsJ1uDOEzR8yvV7C0MuV77Wo=
 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=
@@ -97,6 +129,8 @@ 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/peterbourgon/diskv v2.0.1+incompatible h1:UBdAOUP5p4RWqPBg048CAvpKN+vxiaj6gdUUzhl4XmI=
+github.com/peterbourgon/diskv v2.0.1+incompatible/go.mod h1:uqqh8zWWbv1HBMNONnaR/tNboyR3/BZd58JJSHlUSCU=
 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=
@@ -137,6 +171,8 @@ 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/crypto v0.31.0 h1:ihbySMvVjLAeSH1IbfcRTkD/iNscyz8rGzjF/E5hV6U=
+golang.org/x/crypto v0.31.0/go.mod h1:kDsLvtWBEx7MV9tJOj9bnXsPbxwJQ6csT/x4KIN4Ssk=
 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/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
@@ -154,6 +190,7 @@ golang.org/x/sync v0.15.0 h1:KWH3jNZsfyT6xfAfKiz6MRNmd46ByHDYaZ7KSkCtdW8=
 golang.org/x/sync v0.15.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190412213103-97732733099d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/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 v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=

internal/auth/app_registration.go

@@ -6,6 +6,7 @@ package auth
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -16,6 +17,46 @@ import (
 	"github.com/larksuite/cli/internal/core"
 )
 
+// Terminal registration outcomes, exposed for typed classification by callers.
+var (
+	ErrRegistrationDenied   = errors.New("app registration denied by user")
+	ErrRegistrationExpired  = errors.New("device code expired, please try again")
+	ErrRegistrationTimedOut = errors.New("app registration timed out, please try again")
+)
+
+// Protocol defaults, mirroring the official SDK registration flow.
+const (
+	registrationBootstrapBrand = core.BrandFeishu
+	defaultPollIntervalSeconds = 5
+	defaultExpireInSeconds     = 600
+	beginRequestTimeout        = 30 * time.Second
+	maxPollIntervalSeconds     = 60
+)
+
+// normalizedInterval clamps a non-positive poll interval to the protocol default.
+func normalizedInterval(v int) int {
+	if v <= 0 {
+		return defaultPollIntervalSeconds
+	}
+	return v
+}
+
+// normalizedExpireIn clamps a non-positive expiry budget to the protocol default.
+func normalizedExpireIn(v int) int {
+	if v <= 0 {
+		return defaultExpireInSeconds
+	}
+	return v
+}
+
+// registrationContextError maps a done context to its terminal reason, keeping the cause.
+func registrationContextError(ctx context.Context) error {
+	if errors.Is(ctx.Err(), context.DeadlineExceeded) {
+		return fmt.Errorf("%w: %w", ErrRegistrationTimedOut, ctx.Err())
+	}
+	return fmt.Errorf("app registration cancelled: %w", ctx.Err())
+}
+
 // AppRegistrationResponse is the response from the app registration begin endpoint.
 type AppRegistrationResponse struct {
 	DeviceCode              string
@@ -24,6 +65,7 @@ type AppRegistrationResponse struct {
 	VerificationUriComplete string
 	ExpiresIn               int
 	Interval                int
+	RequestedAuthMethod     string
 }
 
 // AppRegistrationResult is the result of a successful app registration poll.
@@ -31,6 +73,11 @@ type AppRegistrationResult struct {
 	ClientID     string
 	ClientSecret string
 	UserInfo     *AppRegUserInfo
+	// AuthMethods is the authoritative auth method(s) the app must use, as
+	// returned by the registration service after user/admin confirmation. It may
+	// differ from what the client requested, for example when selecting an
+	// existing client_secret app. Empty is accepted for compatible older servers.
+	AuthMethods []string
 }
 
 // AppRegUserInfo contains user info returned from app registration.
@@ -39,23 +86,39 @@ type AppRegUserInfo struct {
 	TenantBrand string // "feishu" or "lark"
 }
 
-// RequestAppRegistration initiates the app registration device flow.
-func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOut io.Writer) (*AppRegistrationResponse, error) {
-	if errOut == nil {
-		errOut = io.Discard
-	}
+// appRegistrationEndpoint returns the brand's accounts registration endpoint.
+func appRegistrationEndpoint(brand core.LarkBrand) string {
+	return core.ResolveEndpoints(brand).Accounts + PathAppRegistration
+}
 
-	ep := core.ResolveEndpoints(brand)
-	regEp := core.ResolveEndpoints(core.BrandFeishu) // registration begin always uses feishu
-	endpoint := regEp.Accounts + PathAppRegistration
+// AppRegistrationInit is the response from the app registration init endpoint.
+type AppRegistrationInit struct {
+	Nonce                string
+	SupportedAuthMethods []string // e.g. ["client_secret", "private_key_jwt"]
+}
+
+// AppRegistrationBeginOptions parametrizes the registration begin request.
+// A zero value selects the legacy client_secret flow, preserving prior behavior.
+type AppRegistrationBeginOptions struct {
+	AuthMethod      string // "" => client_secret; core.AuthMethodPrivateKeyJWT
+	AuthAttestation string // private_key_jwt: the TEE-signed attestation JWT
+	RestoreAppID    string // when set, asks the server to re-register this existing app
+}
+
+// RequestAppRegistrationInit performs the init step of the registration flow,
+// returning a server nonce (to be embedded in a TEE-signed attestation JWT) and
+// the auth methods the server supports for this archetype.
+func RequestAppRegistrationInit(ctx context.Context, httpClient *http.Client) (*AppRegistrationInit, error) {
+	// Registration always begins against the Feishu accounts host (mirrors begin).
+	endpoint := appRegistrationEndpoint(registrationBootstrapBrand)
+	ctx, cancel := context.WithTimeout(ctx, beginRequestTimeout)
+	defer cancel()
 
 	form := url.Values{}
-	form.Set("action", "begin")
+	form.Set("action", "init")
 	form.Set("archetype", "PersonalAgent")
-	form.Set("auth_method", "client_secret")
-	form.Set("request_user_info", "open_id tenant_brand")
 
-	req, err := http.NewRequest("POST", endpoint, strings.NewReader(form.Encode()))
+	req, err := http.NewRequestWithContext(ctx, "POST", endpoint, strings.NewReader(form.Encode()))
 	if err != nil {
 		return nil, err
 	}
@@ -70,7 +133,85 @@ func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOu
 
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
-		return nil, fmt.Errorf("app registration failed: read body: %v", err)
+		return nil, fmt.Errorf("app registration init failed: read body: %w", err)
+	}
+
+	var data map[string]interface{}
+	if err := json.Unmarshal(body, &data); err != nil {
+		return nil, fmt.Errorf("app registration init failed: HTTP %d – response not JSON", resp.StatusCode)
+	}
+
+	if _, hasError := data["error"]; resp.StatusCode >= 400 || hasError {
+		msg := getStr(data, "error_description")
+		if msg == "" {
+			msg = getStr(data, "error")
+		}
+		if msg == "" {
+			msg = "Unknown error"
+		}
+		return nil, fmt.Errorf("app registration init failed: %s", msg)
+	}
+
+	out := &AppRegistrationInit{
+		Nonce:                getStr(data, "nonce"),
+		SupportedAuthMethods: parseAuthMethods(data["supported_auth_methods"]),
+	}
+	if out.Nonce == "" {
+		return nil, fmt.Errorf("app registration init failed: server returned no nonce")
+	}
+	return out, nil
+}
+
+// RequestAppRegistration initiates the device flow. The registration protocol
+// always bootstraps on Feishu; brand selects the user-facing verification host.
+// The request is bounded by ctx and a begin timeout.
+func RequestAppRegistration(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, opts AppRegistrationBeginOptions, errOut io.Writer) (*AppRegistrationResponse, error) {
+	if errOut == nil {
+		errOut = io.Discard
+	}
+
+	ctx, cancel := context.WithTimeout(ctx, beginRequestTimeout)
+	defer cancel()
+
+	ep := core.ResolveEndpoints(brand)
+	endpoint := appRegistrationEndpoint(registrationBootstrapBrand)
+
+	authMethod := opts.AuthMethod
+	if authMethod == "" {
+		authMethod = core.AuthMethodClientSecret
+	}
+
+	form := url.Values{}
+	form.Set("action", "begin")
+	form.Set("archetype", "PersonalAgent")
+	form.Set("auth_method", authMethod)
+	form.Set("request_user_info", "open_id tenant_brand")
+	if opts.AuthAttestation != "" {
+		form.Set("auth_attestation", opts.AuthAttestation)
+	}
+	// Restore flow: the registration service accepts the existing OAuth client
+	// identifier under client_id. The launcher URL still uses app_id; these are
+	// separate contracts and must not be changed together.
+	if opts.RestoreAppID != "" {
+		form.Set("client_id", opts.RestoreAppID)
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", endpoint, strings.NewReader(form.Encode()))
+	if err != nil {
+		return nil, err
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, err
+	}
+	defer resp.Body.Close()
+	logHTTPResponse(resp)
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("app registration failed: read body: %w", err)
 	}
 
 	var data map[string]interface{}
@@ -90,103 +231,230 @@ func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOu
 		return nil, fmt.Errorf("app registration failed: %s", msg)
 	}
 
-	expiresIn := getInt(data, "expires_in", 300)
-	interval := getInt(data, "interval", 5)
+	// The protocol field is expire_in; accept the legacy expires_in spelling,
+	// then normalize to protocol defaults.
+	expiresIn := getInt(data, "expire_in", 0)
+	if expiresIn <= 0 {
+		expiresIn = getInt(data, "expires_in", 0)
+	}
+	expiresIn = normalizedExpireIn(expiresIn)
+	interval := normalizedInterval(getInt(data, "interval", 0))
+
+	deviceCode := getStr(data, "device_code")
+	if deviceCode == "" {
+		return nil, fmt.Errorf("app registration failed: response missing device_code")
+	}
 
 	userCode := getStr(data, "user_code")
 	verificationUri := getStr(data, "verification_uri")
-	verificationUriComplete := fmt.Sprintf("%s/page/cli?user_code=%s", ep.Open, userCode)
+	// Prefer the server-provided complete URL (currently /page/launcher); fall
+	// back to building it from verification_uri, then to /page/launcher. The old
+	// hard-coded /page/cli is stale — the server now returns /page/launcher.
+	verificationUriComplete := getStr(data, "verification_uri_complete")
+	if verificationUriComplete == "" {
+		base := verificationUri
+		if base == "" {
+			base = ep.Open + "/page/launcher"
+		}
+		// The server may return verification_uri with its own query (e.g.
+		// app_id when registering against an existing app), so join with
+		// the same ?/& logic as BuildVerificationURL.
+		sep := "?"
+		if strings.Contains(base, "?") {
+			sep = "&"
+		}
+		verificationUriComplete = base + sep + "user_code=" + url.QueryEscape(userCode)
+	}
 
 	return &AppRegistrationResponse{
-		DeviceCode:              getStr(data, "device_code"),
+		DeviceCode:              deviceCode,
 		UserCode:                getStr(data, "user_code"),
 		VerificationUri:         verificationUri,
 		VerificationUriComplete: verificationUriComplete,
 		ExpiresIn:               expiresIn,
 		Interval:                interval,
+		RequestedAuthMethod:     authMethod,
 	}, nil
 }
 
+// parseAuthMethods normalizes the poll response `auth_method` field, which the
+// server returns as a JSON array of strings (e.g. ["private_key_jwt"]) — or, on
+// some variants, a single space-separated string.
+func parseAuthMethods(v interface{}) []string {
+	switch t := v.(type) {
+	case []interface{}:
+		out := make([]string, 0, len(t))
+		for _, m := range t {
+			if s, ok := m.(string); ok && s != "" {
+				out = append(out, s)
+			}
+		}
+		return out
+	case string:
+		return strings.Fields(t)
+	default:
+		return nil
+	}
+}
+
+func containsAuthMethod(methods []string, target string) bool {
+	for _, method := range methods {
+		if method == target {
+			return true
+		}
+	}
+	return false
+}
+
+func registrationResultComplete(result *AppRegistrationResult, requestedAuthMethod string) bool {
+	if result.ClientID == "" {
+		return false
+	}
+	if result.ClientSecret != "" {
+		return true
+	}
+	if len(result.AuthMethods) > 0 {
+		return containsAuthMethod(result.AuthMethods, core.AuthMethodPrivateKeyJWT)
+	}
+	// Older servers may omit auth_method. In that case only a begin request
+	// explicitly made as private_key_jwt may complete without a client secret.
+	return requestedAuthMethod == core.AuthMethodPrivateKeyJWT
+}
+
 // BuildVerificationURL appends CLI tracking parameters to the verification URL.
-func BuildVerificationURL(baseURL, cliVersion string) string {
+// When targetAppID is non-empty, it is also included so the launcher can lock
+// authorization to that existing app.
+func BuildVerificationURL(baseURL, cliVersion string, targetAppID ...string) string {
+	u, err := url.Parse(baseURL)
+	if err != nil {
+		return appendVerificationURLFallback(baseURL, cliVersion, targetAppID...)
+	}
+	q := u.Query()
+	if q.Get("lpv") == "" {
+		q.Set("lpv", cliVersion)
+	}
+	if q.Get("ocv") == "" {
+		q.Set("ocv", cliVersion)
+	}
+	if q.Get("from") == "" {
+		q.Set("from", "cli")
+	}
+	if len(targetAppID) > 0 && targetAppID[0] != "" && q.Get("app_id") == "" {
+		q.Set("app_id", targetAppID[0])
+	}
+	u.RawQuery = q.Encode()
+	return u.String()
+}
+
+func appendVerificationURLFallback(baseURL, cliVersion string, targetAppID ...string) string {
 	sep := "&"
 	if !strings.Contains(baseURL, "?") {
 		sep = "?"
 	}
-	return baseURL + sep + "lpv=" + url.QueryEscape(cliVersion) +
+	out := baseURL + sep + "lpv=" + url.QueryEscape(cliVersion) +
 		"&ocv=" + url.QueryEscape(cliVersion) +
 		"&from=cli"
+	if len(targetAppID) > 0 && targetAppID[0] != "" && !strings.Contains(baseURL, "app_id=") {
+		out += "&app_id=" + url.QueryEscape(targetAppID[0])
+	}
+	return out
 }
 
-// PollAppRegistration polls the app registration endpoint until the app is created or the flow times out.
-// If the result has ClientSecret == "" and UserInfo.TenantBrand == "lark", the caller should
-// retry with BrandLark to get the secret from accounts.larksuite.com.
-func PollAppRegistration(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) (*AppRegistrationResult, error) {
+// pollOnce performs one ctx-bound poll request and decodes the payload.
+func pollOnce(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, deviceCode string) (map[string]interface{}, error) {
+	form := url.Values{}
+	form.Set("action", "poll")
+	form.Set("device_code", deviceCode)
+
+	req, err := http.NewRequestWithContext(ctx, "POST", appRegistrationEndpoint(brand), strings.NewReader(form.Encode()))
+	if err != nil {
+		return nil, fmt.Errorf("poll request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("poll network error: %w", err)
+	}
+	defer resp.Body.Close()
+	logHTTPResponse(resp)
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("poll read error: %w", err)
+	}
+	var data map[string]interface{}
+	if err := json.Unmarshal(body, &data); err != nil {
+		return nil, fmt.Errorf("poll parse error: %w", err)
+	}
+	return data, nil
+}
+
+// RegisterAppWithDiscovery polls for credentials, mirroring the official SDK
+// flow: the first poll and the (at most one) cross-brand switch are immediate,
+// non-error responses without complete credentials keep polling, and one
+// deadline from the begin expiry bounds all waits and in-flight requests.
+// The returned brand is the one the credentials were issued on.
+func RegisterAppWithDiscovery(ctx context.Context, httpClient *http.Client, resp *AppRegistrationResponse, errOut io.Writer) (*AppRegistrationResult, core.LarkBrand, error) {
 	if errOut == nil {
 		errOut = io.Discard
 	}
 
-	const maxPollInterval = 60
-	const maxPollAttempts = 200
+	// Interval and expiry arrive normalized from begin-response parsing
+	// (normalizedInterval floors them there); the loop trusts them as-is.
+	interval := resp.Interval
+	ctx, cancel := context.WithDeadline(ctx,
+		time.Now().Add(time.Duration(resp.ExpiresIn)*time.Second))
+	defer cancel()
 
-	ep := core.ResolveEndpoints(brand)
-	endpoint := ep.Accounts + PathAppRegistration
-	deadline := time.Now().Add(time.Duration(expiresIn) * time.Second)
-	currentInterval := interval
-	attempts := 0
+	currentBrand := registrationBootstrapBrand
+	effectiveBrand := currentBrand
+	switched := false
+	waitBeforePoll := false
 
-	for time.Now().Before(deadline) && attempts < maxPollAttempts {
-		attempts++
+	for {
+		if waitBeforePoll {
+			select {
+			case <-time.After(time.Duration(interval) * time.Second):
+			case <-ctx.Done():
+				return nil, effectiveBrand, registrationContextError(ctx)
+			}
+		}
+		waitBeforePoll = true
 		if ctx.Err() != nil {
-			return nil, fmt.Errorf("polling was cancelled")
+			return nil, effectiveBrand, registrationContextError(ctx)
 		}
 
-		select {
-		case <-time.After(time.Duration(currentInterval) * time.Second):
-		case <-ctx.Done():
-			return nil, fmt.Errorf("polling was cancelled")
-		}
-
-		form := url.Values{}
-		form.Set("action", "poll")
-		form.Set("device_code", deviceCode)
-
-		req, err := http.NewRequest("POST", endpoint, strings.NewReader(form.Encode()))
+		data, err := pollOnce(ctx, httpClient, currentBrand, resp.DeviceCode)
 		if err != nil {
-			continue
-		}
-		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-
-		resp, err := httpClient.Do(req)
-		if err != nil {
-			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: poll network error: %v\n", err)
-			currentInterval = minInt(currentInterval+1, maxPollInterval)
-			continue
-		}
-		logHTTPResponse(resp)
-
-		body, err := io.ReadAll(resp.Body)
-		resp.Body.Close()
-		if err != nil {
-			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: poll read error: %v\n", err)
-			currentInterval = minInt(currentInterval+1, maxPollInterval)
+			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: %v\n", err)
+			interval = minInt(interval+1, maxPollIntervalSeconds)
 			continue
 		}
 
-		var data map[string]interface{}
-		if err := json.Unmarshal(body, &data); err != nil {
-			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: poll parse error: %v\n", err)
-			currentInterval = minInt(currentInterval+1, maxPollInterval)
-			continue
+		// A cross-brand tenant report switches the polled domain (once,
+		// immediately) regardless of the accompanying status — the signal can
+		// arrive alongside authorization_pending, mirroring the official SDK.
+		if !switched {
+			if userInfoRaw, ok := data["user_info"].(map[string]interface{}); ok {
+				if tb := getStr(userInfoRaw, "tenant_brand"); tb != "" {
+					if actual := core.ParseBrand(tb); actual != currentBrand {
+						currentBrand = actual
+						effectiveBrand = actual
+						switched = true
+						waitBeforePoll = false
+						continue
+					}
+				}
+			}
 		}
 
 		errStr := getStr(data, "error")
-
-		// Success: client_id present
-		if errStr == "" && getStr(data, "client_id") != "" {
+		if errStr == "" {
 			result := &AppRegistrationResult{
 				ClientID:     getStr(data, "client_id"),
 				ClientSecret: getStr(data, "client_secret"),
+				AuthMethods:  parseAuthMethods(data["auth_method"]),
 			}
 			if userInfoRaw, ok := data["user_info"].(map[string]interface{}); ok {
 				result.UserInfo = &AppRegUserInfo{
@@ -194,34 +462,37 @@ func PollAppRegistration(ctx context.Context, httpClient *http.Client, brand cor
 					TenantBrand: getStr(userInfoRaw, "tenant_brand"),
 				}
 			}
-			return result, nil
+
+			if registrationResultComplete(result, resp.RequestedAuthMethod) {
+				// The issuing domain is authoritative; a contradictory final
+				// tenant report is a protocol violation, not a brand override.
+				if result.UserInfo != nil && result.UserInfo.TenantBrand != "" &&
+					core.ParseBrand(result.UserInfo.TenantBrand) != effectiveBrand {
+					return nil, effectiveBrand, fmt.Errorf("app registration returned credentials with a contradictory tenant brand %q", result.UserInfo.TenantBrand)
+				}
+				return result, effectiveBrand, nil
+			}
+			// Incomplete credentials without an error: keep polling.
+			continue
 		}
 
 		switch errStr {
 		case "authorization_pending":
 			continue
 		case "slow_down":
-			currentInterval = minInt(currentInterval+5, maxPollInterval)
-			fmt.Fprintf(errOut, "[lark-cli] app-registration: slow_down, interval increased to %ds\n", currentInterval)
+			interval = minInt(interval+5, maxPollIntervalSeconds)
+			fmt.Fprintf(errOut, "[lark-cli] app-registration: slow_down, interval increased to %ds\n", interval)
 			continue
 		case "access_denied":
-			return nil, fmt.Errorf("app registration denied by user")
+			return nil, effectiveBrand, ErrRegistrationDenied
 		case "expired_token", "invalid_grant":
-			return nil, fmt.Errorf("device code expired, please try again")
+			return nil, effectiveBrand, ErrRegistrationExpired
 		}
 
 		desc := getStr(data, "error_description")
 		if desc == "" {
 			desc = errStr
 		}
-		if desc == "" {
-			desc = "Unknown error"
-		}
-		return nil, fmt.Errorf("app registration failed: %s", desc)
+		return nil, effectiveBrand, fmt.Errorf("app registration failed: %s", desc)
 	}
-
-	if attempts >= maxPollAttempts {
-		fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: max poll attempts (%d) reached\n", maxPollAttempts)
-	}
-	return nil, fmt.Errorf("app registration timed out, please try again")
 }

internal/auth/app_registration_test.go

@@ -4,19 +4,42 @@
 package auth
 
 import (
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"net/url"
+	"slices"
+	"strings"
 	"testing"
+	"time"
 
+	"github.com/larksuite/cli/internal/core"
 	"github.com/smartystreets/goconvey/convey"
 )
 
+// jsonResponse builds a canned registration response (transport fakes reuse
+// roundTripFunc from device_flow_test.go).
+func jsonResponse(body string) *http.Response {
+	return &http.Response{
+		StatusCode: http.StatusOK,
+		Body:       io.NopCloser(strings.NewReader(body)),
+		Header:     make(http.Header),
+	}
+}
+
 // Test_BuildVerificationURL verifies that tracking parameters are correctly appended.
 func Test_BuildVerificationURL(t *testing.T) {
 	t.Run("URL不含问号则添加?分隔符", func(t *testing.T) {
 		result := BuildVerificationURL("https://example.com/verify", "1.0.0")
+		got, err := url.Parse(result)
+		if err != nil {
+			t.Fatal(err)
+		}
 		convey.Convey("should add ? separator", t, func() {
-			convey.So(result, convey.ShouldContainSubstring, "?lpv=1.0.0")
-			convey.So(result, convey.ShouldContainSubstring, "&ocv=1.0.0")
-			convey.So(result, convey.ShouldContainSubstring, "&from=cli")
+			convey.So(got.Query().Get("lpv"), convey.ShouldEqual, "1.0.0")
+			convey.So(got.Query().Get("ocv"), convey.ShouldEqual, "1.0.0")
+			convey.So(got.Query().Get("from"), convey.ShouldEqual, "cli")
 			convey.So(result, convey.ShouldStartWith, "https://example.com/verify?")
 		})
 	})
@@ -30,4 +53,635 @@ func Test_BuildVerificationURL(t *testing.T) {
 			convey.So(result, convey.ShouldNotContainSubstring, "?lpv=")
 		})
 	})
+
+	t.Run("指定已有应用时添加app_id", func(t *testing.T) {
+		result := BuildVerificationURL("https://example.com/verify?user_code=abc", "2.0.0", "cli_existing")
+		got, err := url.Parse(result)
+		if err != nil {
+			t.Fatal(err)
+		}
+		convey.Convey("should include target app_id", t, func() {
+			convey.So(got.Query().Get("app_id"), convey.ShouldEqual, "cli_existing")
+			convey.So(got.Query().Get("client_id"), convey.ShouldEqual, "")
+			convey.So(got.Query().Get("lpv"), convey.ShouldEqual, "2.0.0")
+		})
+	})
+
+	t.Run("服务端已返回app_id时不覆盖", func(t *testing.T) {
+		result := BuildVerificationURL("https://example.com/verify?app_id=cli_server&user_code=abc", "2.0.0", "cli_existing")
+		got, err := url.Parse(result)
+		if err != nil {
+			t.Fatal(err)
+		}
+		convey.Convey("should keep server app_id", t, func() {
+			convey.So(got.Query().Get("app_id"), convey.ShouldEqual, "cli_server")
+		})
+	})
 }
+
+// captureClient returns an http.Client that records the last request's form body
+// and replies with the given JSON payload.
+func captureClient(gotBody *url.Values, respJSON string) *http.Client {
+	return &http.Client{
+		Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+			if req.Body != nil {
+				b, _ := io.ReadAll(req.Body)
+				v, _ := url.ParseQuery(string(b))
+				*gotBody = v
+			}
+			return &http.Response{
+				StatusCode: http.StatusOK,
+				Header:     make(http.Header),
+				Body:       io.NopCloser(strings.NewReader(respJSON)),
+			}, nil
+		}),
+	}
+}
+
+func TestRequestAppRegistrationInit_ParsesNonceAndMethods(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, `{"nonce":"n-123","supported_auth_methods":["client_secret","private_key_jwt"]}`)
+
+	out, err := RequestAppRegistrationInit(context.Background(), hc)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out.Nonce != "n-123" {
+		t.Errorf("nonce = %q, want n-123", out.Nonce)
+	}
+	if len(out.SupportedAuthMethods) != 2 || out.SupportedAuthMethods[1] != "private_key_jwt" {
+		t.Errorf("methods = %v", out.SupportedAuthMethods)
+	}
+	if body.Get("action") != "init" {
+		t.Errorf("action = %q, want init", body.Get("action"))
+	}
+}
+
+func TestRequestAppRegistrationInit_ErrorOnMissingNonce(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, `{"supported_auth_methods":["client_secret"]}`)
+	if _, err := RequestAppRegistrationInit(context.Background(), hc); err == nil {
+		t.Fatal("expected error when server returns no nonce")
+	}
+}
+
+// TestRequestAppRegistrationInit_EmptySupportedAuthMethods covers the older-server
+// back-compat path: an empty supported_auth_methods array parses to an empty
+// slice, so the init guard in cmd/config/init_interactive.go
+// (`len(SupportedAuthMethods) > 0 && !slices.Contains(...)`) stays false and does
+// NOT reject the requested private_key_jwt. This aligns with
+// resolveFinalAuthMethod(nil/[], private_key_jwt) == private_key_jwt
+// (see cmd/config TestResolveFinalAuthMethod).
+func TestRequestAppRegistrationInit_EmptySupportedAuthMethods(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, `{"nonce":"n-1","supported_auth_methods":[]}`)
+
+	out, err := RequestAppRegistrationInit(context.Background(), hc)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if out.Nonce != "n-1" {
+		t.Errorf("nonce = %q, want n-1", out.Nonce)
+	}
+	if len(out.SupportedAuthMethods) != 0 {
+		t.Errorf("SupportedAuthMethods = %v, want empty", out.SupportedAuthMethods)
+	}
+	// Reproduce the init guard expression on the real parsed result: an empty
+	// slice must NOT reject private_key_jwt.
+	rejected := len(out.SupportedAuthMethods) > 0 &&
+		!slices.Contains(out.SupportedAuthMethods, core.AuthMethodPrivateKeyJWT)
+	if rejected {
+		t.Error("empty SupportedAuthMethods must allow private_key_jwt (older-server back-compat)")
+	}
+}
+
+const beginRespJSON = `{"device_code":"dc","user_code":"uc","verification_uri":"https://example/verify","expires_in":300,"interval":5}`
+
+func TestRequestAppRegistration_BeginDefaultsToClientSecret(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, beginRespJSON)
+
+	if _, err := RequestAppRegistration(context.Background(), hc, core.BrandFeishu, AppRegistrationBeginOptions{}, nil); err != nil {
+		t.Fatal(err)
+	}
+	if body.Get("action") != "begin" {
+		t.Errorf("action = %q", body.Get("action"))
+	}
+	if body.Get("auth_method") != "client_secret" {
+		t.Errorf("auth_method = %q, want client_secret (default)", body.Get("auth_method"))
+	}
+	if body.Has("auth_attestation") {
+		t.Errorf("auth_attestation should be absent for client_secret, got %q", body.Get("auth_attestation"))
+	}
+	// Normal (non-restore) begin must NOT carry client_id.
+	if body.Has("client_id") {
+		t.Errorf("client_id should be absent when RestoreAppID is empty, got %q", body.Get("client_id"))
+	}
+}
+
+// TestRequestAppRegistration_BeginRestoreAppID verifies the restore flow sends the
+// existing app id on begin so the server re-registers that app.
+func TestRequestAppRegistration_BeginRestoreAppID(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, beginRespJSON)
+
+	opts := AppRegistrationBeginOptions{RestoreAppID: "cli_restore_me"}
+	if _, err := RequestAppRegistration(context.Background(), hc, core.BrandFeishu, opts, nil); err != nil {
+		t.Fatal(err)
+	}
+	if body.Get("action") != "begin" {
+		t.Errorf("action = %q, want begin", body.Get("action"))
+	}
+	if body.Get("client_id") != "cli_restore_me" {
+		t.Errorf("client_id = %q, want cli_restore_me", body.Get("client_id"))
+	}
+	if body.Has("app_id") {
+		t.Errorf("begin form app_id must be absent, got %q", body.Get("app_id"))
+	}
+}
+
+func TestRequestAppRegistration_VerificationURICompleteFallback(t *testing.T) {
+	cases := []struct {
+		name string
+		resp string
+		want string
+	}{
+		{
+			name: "bare verification_uri",
+			resp: `{"device_code":"dc","user_code":"uc","verification_uri":"https://example/verify","expires_in":300,"interval":5}`,
+			want: "https://example/verify?user_code=uc",
+		},
+		{
+			name: "verification_uri with existing query",
+			resp: `{"device_code":"dc","user_code":"uc","verification_uri":"https://example/verify?app_id=cli_x","expires_in":300,"interval":5}`,
+			want: "https://example/verify?app_id=cli_x&user_code=uc",
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			var body url.Values
+			hc := captureClient(&body, tc.resp)
+			got, err := RequestAppRegistration(context.Background(), hc, core.BrandFeishu, AppRegistrationBeginOptions{}, nil)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if got.VerificationUriComplete != tc.want {
+				t.Errorf("VerificationUriComplete = %q, want %q", got.VerificationUriComplete, tc.want)
+			}
+		})
+	}
+}
+
+func TestParseAuthMethods(t *testing.T) {
+	if got := parseAuthMethods([]interface{}{"private_key_jwt", "client_secret"}); len(got) != 2 || got[0] != "private_key_jwt" {
+		t.Errorf("array form = %v", got)
+	}
+	if got := parseAuthMethods("client_secret private_key_jwt"); len(got) != 2 || got[1] != "private_key_jwt" {
+		t.Errorf("string form = %v", got)
+	}
+	if got := parseAuthMethods(nil); got != nil {
+		t.Errorf("nil form = %v, want nil", got)
+	}
+}
+
+func TestRequestAppRegistration_BeginPrivateKeyJWT(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, beginRespJSON)
+
+	opts := AppRegistrationBeginOptions{
+		AuthMethod:      core.AuthMethodPrivateKeyJWT,
+		AuthAttestation: "header.claims.sig",
+	}
+	if _, err := RequestAppRegistration(context.Background(), hc, core.BrandFeishu, opts, nil); err != nil {
+		t.Fatal(err)
+	}
+	if body.Get("auth_method") != "private_key_jwt" {
+		t.Errorf("auth_method = %q, want private_key_jwt", body.Get("auth_method"))
+	}
+	if body.Get("auth_attestation") != "header.claims.sig" {
+		t.Errorf("auth_attestation = %q", body.Get("auth_attestation"))
+	}
+}
+
+func TestRequestAppRegistration_BeginPrivateKeyJWTExistingAppID(t *testing.T) {
+	var body url.Values
+	hc := captureClient(&body, beginRespJSON)
+
+	opts := AppRegistrationBeginOptions{
+		AuthMethod:      core.AuthMethodPrivateKeyJWT,
+		AuthAttestation: "header.claims.sig",
+		RestoreAppID:    "cli_existing",
+	}
+	if _, err := RequestAppRegistration(context.Background(), hc, core.BrandFeishu, opts, nil); err != nil {
+		t.Fatal(err)
+	}
+	if body.Get("auth_method") != "private_key_jwt" {
+		t.Errorf("auth_method = %q, want private_key_jwt", body.Get("auth_method"))
+	}
+	if body.Get("auth_attestation") != "header.claims.sig" {
+		t.Errorf("auth_attestation = %q", body.Get("auth_attestation"))
+	}
+	if body.Get("client_id") != "cli_existing" {
+		t.Errorf("client_id = %q, want cli_existing", body.Get("client_id"))
+	}
+}
+
+func TestAppRegistrationEndpoint(t *testing.T) {
+	cases := []struct {
+		brand core.LarkBrand
+		want  string
+	}{
+		{core.BrandFeishu, "https://accounts.feishu.cn" + PathAppRegistration},
+		{core.BrandLark, "https://accounts.larksuite.com" + PathAppRegistration},
+	}
+	for _, c := range cases {
+		if got := appRegistrationEndpoint(c.brand); got != c.want {
+			t.Errorf("brand %q: endpoint = %q, want %q", c.brand, got, c.want)
+		}
+	}
+}
+
+func TestRequestAppRegistration_UsesFeishuBootstrapAndConfiguredVerificationBrand(t *testing.T) {
+	cases := []struct {
+		brand            core.LarkBrand
+		verificationHost string
+	}{
+		{core.BrandFeishu, "open.feishu.cn"},
+		{core.BrandLark, "open.larksuite.com"},
+	}
+	for _, c := range cases {
+		t.Run(string(c.brand), func(t *testing.T) {
+			client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+				if got, want := r.URL.Host, "accounts.feishu.cn"; got != want {
+					t.Errorf("begin host = %q, want bootstrap host %q", got, want)
+				}
+				return jsonResponse(`{"device_code":"d","user_code":"TEST-CODE","expire_in":60,"interval":5}`), nil
+			})}
+			resp, err := RequestAppRegistration(context.Background(), client, c.brand, AppRegistrationBeginOptions{}, io.Discard)
+			if err != nil {
+				t.Fatalf("RequestAppRegistration(%q) error = %v", c.brand, err)
+			}
+			if !strings.HasPrefix(resp.VerificationUriComplete, "https://"+c.verificationHost+"/page/launcher?") {
+				t.Errorf("verification URL = %q, want host %q", resp.VerificationUriComplete, c.verificationHost)
+			}
+		})
+	}
+}
+
+// Full Lark routing contract: Lark selects the Lark verification page, while
+// registration bootstraps on Feishu and switches only after the tenant signal.
+// The Lark credential response omits user_info, so the effective domain must
+// still determine the saved brand.
+func TestRegisterAppWithDiscovery_LarkFlowUsesProtocolBootstrap(t *testing.T) {
+	var calls []string
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		if err := r.ParseForm(); err != nil {
+			t.Fatalf("parse form: %v", err)
+		}
+		action := r.Form.Get("action")
+		calls = append(calls, action+"@"+r.URL.Host)
+		if action == "begin" {
+			return jsonResponse(`{"device_code":"device","user_code":"TEST-CODE","expire_in":60,"interval":0}`), nil
+		}
+		switch r.URL.Host {
+		case "accounts.feishu.cn":
+			return jsonResponse(`{"user_info":{"open_id":"ou_x","tenant_brand":"lark"}}`), nil
+		case "accounts.larksuite.com":
+			return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+		}
+		t.Errorf("unexpected host polled: %s", r.URL.Host)
+		return jsonResponse(`{}`), nil
+	})}
+	resp, err := RequestAppRegistration(context.Background(), client, core.BrandLark, AppRegistrationBeginOptions{}, io.Discard)
+	if err != nil {
+		t.Fatalf("RequestAppRegistration error = %v", err)
+	}
+	if got, want := resp.VerificationUriComplete, "https://open.larksuite.com/page/launcher?user_code=TEST-CODE"; got != want {
+		t.Errorf("verification URL = %q, want %q", got, want)
+	}
+
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if finalBrand != core.BrandLark {
+		t.Errorf("finalBrand = %q, want %q (credentials were issued on the lark domain)", finalBrand, core.BrandLark)
+	}
+	if result.ClientID != "cli_x" || result.ClientSecret != "test-secret" {
+		t.Errorf("credentials = (%q, %q), want (cli_x, test-secret)", result.ClientID, result.ClientSecret)
+	}
+	want := []string{"begin@accounts.feishu.cn", "poll@accounts.feishu.cn", "poll@accounts.larksuite.com"}
+	if len(calls) != len(want) {
+		t.Fatalf("calls = %v, want %v", calls, want)
+	}
+	for i := range want {
+		if calls[i] != want[i] {
+			t.Errorf("calls = %v, want %v", calls, want)
+			break
+		}
+	}
+}
+
+// Plain path: the bootstrap domain can return complete Feishu credentials in
+// one poll, even when user_info is absent.
+func TestRegisterAppWithDiscovery_BootstrapBrandSinglePoll(t *testing.T) {
+	polls := 0
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polls++
+		if got, want := r.URL.Host, "accounts.feishu.cn"; got != want {
+			t.Errorf("poll host = %q, want %q", got, want)
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	_, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if finalBrand != core.BrandFeishu {
+		t.Errorf("finalBrand = %q, want %q", finalBrand, core.BrandFeishu)
+	}
+	if polls != 1 {
+		t.Errorf("polls = %d, want 1", polls)
+	}
+}
+
+// The discovery deadline must cancel in-flight requests: the fake transport
+// hangs until the request context is done.
+func TestRegisterAppWithDiscovery_DeadlineBoundsInFlightRequests(t *testing.T) {
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		<-r.Context().Done()
+		return nil, r.Context().Err()
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 1}
+
+	start := time.Now()
+	_, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err == nil {
+		t.Fatal("expected timeout error, got nil")
+	}
+	if !strings.Contains(err.Error(), "timed out") {
+		t.Errorf("error = %v, want a timed-out terminal reason", err)
+	}
+	if elapsed := time.Since(start); elapsed > 3*time.Second {
+		t.Errorf("discovery not bounded by its deadline: took %v", elapsed)
+	}
+}
+
+// Empty payloads and incomplete same-brand responses are not terminal.
+func TestRegisterAppWithDiscovery_PollsUntilCredentials(t *testing.T) {
+	responses := []string{
+		`{}`,
+		`{"client_id":"cli_x","user_info":{"open_id":"ou_x","tenant_brand":"feishu"}}`,
+		`{"client_id":"cli_x","client_secret":"test-secret","user_info":{"open_id":"ou_x","tenant_brand":"feishu"}}`,
+	}
+	polls := 0
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		body := responses[polls]
+		polls++
+		return jsonResponse(body), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if polls != 3 {
+		t.Errorf("polls = %d, want 3", polls)
+	}
+	if result.ClientSecret != "test-secret" || finalBrand != core.BrandFeishu {
+		t.Errorf("result = (%q, %q), want (test-secret, feishu)", result.ClientSecret, finalBrand)
+	}
+}
+
+func TestRegisterAppWithDiscovery_KeylessCompletesWithoutSecret(t *testing.T) {
+	tests := []struct {
+		name                string
+		response            string
+		requestedAuthMethod string
+	}{
+		{
+			name:     "server explicitly returns private_key_jwt",
+			response: `{"client_id":"cli_keyless","auth_method":["private_key_jwt"]}`,
+		},
+		{
+			name:                "older server omits auth_method for a keyless begin",
+			response:            `{"client_id":"cli_keyless"}`,
+			requestedAuthMethod: core.AuthMethodPrivateKeyJWT,
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			polls := 0
+			client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+				polls++
+				return jsonResponse(tt.response), nil
+			})}
+			resp := &AppRegistrationResponse{
+				DeviceCode:          "device",
+				Interval:            0,
+				ExpiresIn:           5,
+				RequestedAuthMethod: tt.requestedAuthMethod,
+			}
+
+			result, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+			if err != nil {
+				t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+			}
+			if polls != 1 {
+				t.Errorf("polls = %d, want 1", polls)
+			}
+			if result.ClientID != "cli_keyless" || result.ClientSecret != "" {
+				t.Errorf("result = (%q, %q), want (cli_keyless, empty secret)", result.ClientID, result.ClientSecret)
+			}
+		})
+	}
+}
+
+// Neither the first poll nor the cross-brand switch waits out the interval
+// (a 5s interval would blow the elapsed bound).
+func TestRegisterAppWithDiscovery_ImmediateFirstPollAndSwitch(t *testing.T) {
+	var polledHosts []string
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polledHosts = append(polledHosts, r.URL.Host)
+		if r.URL.Host == "accounts.feishu.cn" {
+			return jsonResponse(`{"user_info":{"open_id":"ou_x","tenant_brand":"lark"}}`), nil
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 5, ExpiresIn: 60}
+
+	start := time.Now()
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if elapsed := time.Since(start); elapsed > 2*time.Second {
+		t.Errorf("discovery waited an interval somewhere: took %v", elapsed)
+	}
+	if finalBrand != core.BrandLark || result.ClientSecret != "test-secret" {
+		t.Errorf("result = (%q, %q), want (test-secret, lark)", result.ClientSecret, finalBrand)
+	}
+	want := []string{"accounts.feishu.cn", "accounts.larksuite.com"}
+	if len(polledHosts) != 2 || polledHosts[0] != want[0] || polledHosts[1] != want[1] {
+		t.Errorf("polled hosts = %v, want %v", polledHosts, want)
+	}
+}
+
+// Denial and expiry map to sentinels; cancellation preserves its cause.
+func TestRegisterAppWithDiscovery_TerminalSentinels(t *testing.T) {
+	deny := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		return jsonResponse(`{"error":"access_denied"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+	_, _, err := RegisterAppWithDiscovery(context.Background(), deny, resp, io.Discard)
+	if !errors.Is(err, ErrRegistrationDenied) {
+		t.Errorf("denied err = %v, want ErrRegistrationDenied", err)
+	}
+
+	expired := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		return jsonResponse(`{"error":"expired_token"}`), nil
+	})}
+	_, _, err = RegisterAppWithDiscovery(context.Background(), expired, resp, io.Discard)
+	if !errors.Is(err, ErrRegistrationExpired) {
+		t.Errorf("expired err = %v, want ErrRegistrationExpired", err)
+	}
+
+	cancelledCtx, cancel := context.WithCancel(context.Background())
+	cancel()
+	_, _, err = RegisterAppWithDiscovery(cancelledCtx, deny, resp, io.Discard)
+	if !errors.Is(err, context.Canceled) {
+		t.Errorf("cancelled err = %v, want a context.Canceled cause", err)
+	}
+}
+
+// Begin parsing: expire_in (legacy expires_in fallback), normalization, and
+// required device_code.
+func TestRequestAppRegistration_ProtocolFields(t *testing.T) {
+	serve := func(body string) *http.Client {
+		return &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+			return jsonResponse(body), nil
+		})}
+	}
+
+	resp, err := RequestAppRegistration(context.Background(),
+		serve(`{"device_code":"d","expire_in":60,"interval":3}`), core.BrandFeishu, AppRegistrationBeginOptions{}, io.Discard)
+	if err != nil {
+		t.Fatalf("begin error = %v", err)
+	}
+	if resp.ExpiresIn != 60 || resp.Interval != 3 {
+		t.Errorf("parsed (expire=%d, interval=%d), want (60, 3)", resp.ExpiresIn, resp.Interval)
+	}
+
+	resp, err = RequestAppRegistration(context.Background(),
+		serve(`{"device_code":"d","expires_in":45}`), core.BrandFeishu, AppRegistrationBeginOptions{}, io.Discard)
+	if err != nil {
+		t.Fatalf("legacy begin error = %v", err)
+	}
+	if resp.ExpiresIn != 45 || resp.Interval != 5 {
+		t.Errorf("legacy parsed (expire=%d, interval=%d), want (45, 5 — normalized default)", resp.ExpiresIn, resp.Interval)
+	}
+
+	resp, err = RequestAppRegistration(context.Background(),
+		serve(`{"device_code":"d","interval":0}`), core.BrandFeishu, AppRegistrationBeginOptions{}, io.Discard)
+	if err != nil {
+		t.Fatalf("defaults begin error = %v", err)
+	}
+	if resp.ExpiresIn != 600 || resp.Interval != 5 {
+		t.Errorf("defaults parsed (expire=%d, interval=%d), want (600, 5)", resp.ExpiresIn, resp.Interval)
+	}
+
+	if _, err := RequestAppRegistration(context.Background(),
+		serve(`{"interval":5}`), core.BrandFeishu, AppRegistrationBeginOptions{}, io.Discard); err == nil {
+		t.Error("missing device_code: expected error, got nil")
+	}
+}
+
+// A tenant signal arriving alongside authorization_pending must still switch
+// the polled domain (the official SDK checks the signal before the error).
+func TestRegisterAppWithDiscovery_PendingWithTenantSignalSwitches(t *testing.T) {
+	var polledHosts []string
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polledHosts = append(polledHosts, r.URL.Host)
+		if r.URL.Host == "accounts.feishu.cn" {
+			return jsonResponse(`{"error":"authorization_pending","user_info":{"tenant_brand":"lark"}}`), nil
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if finalBrand != core.BrandLark || result.ClientSecret != "test-secret" {
+		t.Errorf("result = (%q, %q), want (test-secret, lark)", result.ClientSecret, finalBrand)
+	}
+	want := []string{"accounts.feishu.cn", "accounts.larksuite.com"}
+	if len(polledHosts) != 2 || polledHosts[0] != want[0] || polledHosts[1] != want[1] {
+		t.Errorf("polled hosts = %v, want %v", polledHosts, want)
+	}
+}
+
+// Polling has no attempt cap: only the expiry budget terminates the loop.
+func TestRegisterAppWithDiscovery_NoAttemptCap(t *testing.T) {
+	polls := 0
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polls++
+		if polls <= 250 {
+			return jsonResponse(`{"error":"authorization_pending"}`), nil
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 30}
+
+	result, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil (no attempts cap)", err)
+	}
+	if polls != 251 || result.ClientSecret != "test-secret" {
+		t.Errorf("polls = %d (want 251), secret = %q", polls, result.ClientSecret)
+	}
+}
+
+// A final tenant report contradicting the issuing domain is a protocol
+// violation, not a brand override: the saved brand must never diverge from
+// the domain that issued the credentials.
+func TestRegisterAppWithDiscovery_ContradictoryFinalBrandFails(t *testing.T) {
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		if r.URL.Host == "accounts.feishu.cn" {
+			return jsonResponse(`{"error":"authorization_pending","user_info":{"tenant_brand":"lark"}}`), nil
+		}
+		// The lark domain issues credentials but reports a feishu tenant.
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret","user_info":{"tenant_brand":"feishu"}}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	_, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err == nil || !strings.Contains(err.Error(), "contradictory tenant brand") {
+		t.Errorf("err = %v, want contradictory-tenant-brand protocol error", err)
+	}
+}
+
+// A cancelled body read during begin must keep its context cause so the
+// command layer classifies it as a cancellation, not an API failure.
+func TestRequestAppRegistration_BodyReadCancelKeepsCause(t *testing.T) {
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Body:       io.NopCloser(&errReader{err: context.Canceled}),
+			Header:     make(http.Header),
+		}, nil
+	})}
+	_, err := RequestAppRegistration(context.Background(), client, core.BrandFeishu, AppRegistrationBeginOptions{}, io.Discard)
+	if !errors.Is(err, context.Canceled) {
+		t.Errorf("err = %v, want a context.Canceled cause", err)
+	}
+}
+
+type errReader struct{ err error }
+
+func (r *errReader) Read([]byte) (int, error) { return 0, r.err }

internal/auth/client_auth.go

@@ -0,0 +1,124 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"fmt"
+	"net/url"
+	"time"
+
+	"github.com/larksuite/cli/internal/auth/jwt"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keylesshelper"
+	"github.com/larksuite/cli/internal/keylessprovider"
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+// ClientAuth describes how to authenticate the OAuth client at the token
+// endpoint: with a client_secret (default) or a TEE-signed client_assertion
+// (private_key_jwt).
+type ClientAuth struct {
+	AppID       string
+	AppSecret   string
+	AuthMethod  string // "" == client_secret; core.AuthMethodPrivateKeyJWT
+	Signer      keysigner.Signer
+	KeyLabel    string
+	KeyProvider string
+
+	// externalSigner is a verified provider snapshot prepared once for a
+	// multi-request operation (for example a device-flow poll loop). The helper
+	// still re-verifies its binary and mints a fresh assertion on every call.
+	externalSigner clientAssertionSigner
+}
+
+type clientAssertionSigner interface {
+	SignClientAssertion(context.Context, string, string, string) (string, string, error)
+}
+
+var resolveExternalAssertionSigner = func(ctx context.Context, provider string) (clientAssertionSigner, error) {
+	return keylessprovider.Resolve(ctx, provider)
+}
+
+// ClientAuthFromConfig builds a ClientAuth from resolved config, picking up the
+// active key signer for private_key_jwt apps.
+func ClientAuthFromConfig(cfg *core.CliConfig) ClientAuth {
+	if cfg == nil {
+		return ClientAuth{}
+	}
+	return ClientAuth{
+		AppID:       cfg.AppID,
+		AppSecret:   cfg.AppSecret,
+		AuthMethod:  cfg.AuthMethod,
+		KeyLabel:    cfg.KeyLabel,
+		KeyProvider: cfg.KeyProvider,
+		Signer:      keysigner.Active(),
+	}
+}
+
+func (c ClientAuth) isPrivateKeyJWT() bool { return c.AuthMethod == core.AuthMethodPrivateKeyJWT }
+
+// ResolveSigner prepares the external private_key_jwt signer for reuse within
+// one operation and returns the prepared copy. Built-in signers and
+// client_secret authentication need no provider discovery. Keeping the
+// resolved helper on ClientAuth separates expensive provider discovery from
+// assertion minting: callers may reuse the returned value, while every call to
+// applyClientAssertion still asks the signer for a fresh assertion.
+func (c ClientAuth) ResolveSigner(ctx context.Context) (ClientAuth, error) {
+	if !c.isPrivateKeyJWT() || c.KeyProvider == "" || c.externalSigner != nil {
+		return c, nil
+	}
+	helper, err := resolveExternalAssertionSigner(ctx, c.KeyProvider)
+	if err != nil {
+		return c, err
+	}
+	if helper == nil {
+		return c, fmt.Errorf("private_key_jwt provider %q resolved without a signer", c.KeyProvider)
+	}
+	c.externalSigner = helper
+	return c, nil
+}
+
+// SignClientAssertion signs with a resolved external helper when present,
+// otherwise with the platform signer.
+func SignClientAssertion(ctx context.Context, signer keysigner.Signer, helper *keylesshelper.Command, keyLabel, clientID, audience string) (string, string, error) {
+	if helper != nil {
+		return helper.SignClientAssertion(ctx, keyLabel, clientID, audience)
+	}
+	assertion, err := jwt.SignClientAssertion(ctx, signer, keysigner.KeyRef{Label: keyLabel}, clientID, audience, time.Now())
+	return jwt.ClientAssertionType, assertion, err
+}
+
+// applyClientAssertion adds client_assertion(+type) to a token-endpoint form for
+// private_key_jwt and returns true. For client_secret it returns false, leaving
+// the caller to apply its own secret-based authentication. audience is the token
+// endpoint URL (the assertion's aud claim).
+func (c ClientAuth) applyClientAssertion(ctx context.Context, form url.Values, audience string) (bool, error) {
+	if !c.isPrivateKeyJWT() {
+		return false, nil
+	}
+	var err error
+	if c.KeyProvider != "" {
+		c, err = c.ResolveSigner(ctx)
+		if err != nil {
+			return false, err
+		}
+	}
+	helper := c.externalSigner
+	if helper == nil && c.Signer == nil {
+		return false, fmt.Errorf("private_key_jwt requires a key signer, but none is available on this build")
+	}
+	var assertionType, assertion string
+	if helper != nil {
+		assertionType, assertion, err = helper.SignClientAssertion(ctx, c.KeyLabel, c.AppID, audience)
+	} else {
+		assertionType, assertion, err = SignClientAssertion(ctx, c.Signer, nil, c.KeyLabel, c.AppID, audience)
+	}
+	if err != nil {
+		return false, err
+	}
+	form.Set("client_assertion_type", assertionType)
+	form.Set("client_assertion", assertion)
+	return true, nil
+}

internal/auth/client_auth_test.go

@@ -0,0 +1,227 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/sha256"
+	"fmt"
+	"net/url"
+	"testing"
+
+	"github.com/larksuite/cli/internal/auth/jwt"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+// fakeAuthSigner is a real in-memory ECDSA P-256 signer for client-auth tests.
+type fakeAuthSigner struct{ key *ecdsa.PrivateKey }
+
+type fakeExternalAssertionSigner struct {
+	keyRef, clientID, audience string
+	calls                      int
+}
+
+func (f *fakeExternalAssertionSigner) SignClientAssertion(_ context.Context, keyRef, clientID, audience string) (string, string, error) {
+	f.keyRef, f.clientID, f.audience = keyRef, clientID, audience
+	f.calls++
+	return jwt.ClientAssertionType, fmt.Sprintf("external.jwt.%d", f.calls), nil
+}
+
+func newFakeAuthSigner(t *testing.T) *fakeAuthSigner {
+	t.Helper()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &fakeAuthSigner{key: k}
+}
+
+func (f *fakeAuthSigner) EnsureKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return f.key.Public(), nil
+}
+func (f *fakeAuthSigner) PublicKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return f.key.Public(), nil
+}
+func (f *fakeAuthSigner) Sign(_ context.Context, _ keysigner.KeyRef, in []byte) ([]byte, string, error) {
+	h := sha256.Sum256(in)
+	r, s, err := ecdsa.Sign(rand.Reader, f.key, h[:])
+	if err != nil {
+		return nil, "", err
+	}
+	sig := make([]byte, 64)
+	r.FillBytes(sig[:32])
+	s.FillBytes(sig[32:])
+	return sig, keysigner.AlgES256, nil
+}
+
+func TestClientAuth_applyClientAssertion_ClientSecret(t *testing.T) {
+	ca := ClientAuth{AppID: "cli_a", AppSecret: "test-secret"} // AuthMethod "" => client_secret
+	form := url.Values{}
+	used, err := ca.applyClientAssertion(context.Background(), form, "https://aud/token")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if used {
+		t.Error("client_secret must not produce a client_assertion")
+	}
+	if form.Has("client_assertion") || form.Has("client_assertion_type") {
+		t.Errorf("form should be untouched, got %v", form)
+	}
+}
+
+func TestClientAuth_applyClientAssertion_PrivateKeyJWT(t *testing.T) {
+	ca := ClientAuth{
+		AppID:      "cli_a",
+		AuthMethod: core.AuthMethodPrivateKeyJWT,
+		Signer:     newFakeAuthSigner(t),
+		KeyLabel:   "k",
+	}
+	form := url.Values{}
+	used, err := ca.applyClientAssertion(context.Background(), form, "https://accounts.feishu.cn/open-apis/authen/v2/oauth/token")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !used {
+		t.Fatal("expected client_assertion to be applied")
+	}
+	if form.Get("client_assertion_type") != jwt.ClientAssertionType {
+		t.Errorf("client_assertion_type = %q", form.Get("client_assertion_type"))
+	}
+	if form.Get("client_assertion") == "" {
+		t.Error("client_assertion is empty")
+	}
+	if form.Has("client_secret") {
+		t.Error("client_secret must NOT be present for private_key_jwt")
+	}
+}
+
+func TestClientAuth_applyClientAssertion_NilSigner(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	ca := ClientAuth{AppID: "cli_a", AuthMethod: core.AuthMethodPrivateKeyJWT} // Signer nil
+	if _, err := ca.applyClientAssertion(context.Background(), url.Values{}, "aud"); err == nil {
+		t.Fatal("expected error when private_key_jwt has no signer")
+	}
+}
+
+func TestClientAuth_applyClientAssertion_UnknownProviderFailsClosed(t *testing.T) {
+	ca := ClientAuth{AppID: "cli_a", AuthMethod: core.AuthMethodPrivateKeyJWT, Signer: newFakeAuthSigner(t), KeyLabel: "k", KeyProvider: "evil.provider"}
+	form := url.Values{}
+	used, err := ca.applyClientAssertion(context.Background(), form, "aud")
+	if err == nil || used || form.Has("client_assertion") {
+		t.Fatalf("unknown provider must fail closed: used=%v form=%v err=%v", used, form, err)
+	}
+}
+
+func TestClientAuth_applyClientAssertion_NilExternalProviderDoesNotFallback(t *testing.T) {
+	previous := resolveExternalAssertionSigner
+	resolveExternalAssertionSigner = func(context.Context, string) (clientAssertionSigner, error) {
+		return nil, nil
+	}
+	t.Cleanup(func() { resolveExternalAssertionSigner = previous })
+
+	ca := ClientAuth{
+		AppID: "cli_a", AppSecret: "must-not-send", AuthMethod: core.AuthMethodPrivateKeyJWT,
+		Signer: newFakeAuthSigner(t), KeyLabel: "k", KeyProvider: core.KeylessProviderLarkSuite,
+	}
+	form := url.Values{}
+	used, err := ca.applyClientAssertion(context.Background(), form, "aud")
+	if err == nil || used || form.Has("client_assertion") || form.Has("client_secret") {
+		t.Fatalf("nil external provider must fail closed: used=%v form=%v err=%v", used, form, err)
+	}
+}
+
+func TestClientAuth_applyClientAssertion_ExplicitProviderDoesNotUseBuiltinOrSecret(t *testing.T) {
+	fake := &fakeExternalAssertionSigner{}
+	previous := resolveExternalAssertionSigner
+	resolveExternalAssertionSigner = func(_ context.Context, provider string) (clientAssertionSigner, error) {
+		if provider != core.KeylessProviderLarkSuite {
+			t.Fatalf("provider = %q", provider)
+		}
+		return fake, nil
+	}
+	t.Cleanup(func() { resolveExternalAssertionSigner = previous })
+
+	ca := ClientAuth{
+		AppID: "cli_external", AppSecret: "must-not-send", AuthMethod: core.AuthMethodPrivateKeyJWT,
+		Signer: newFakeAuthSigner(t), KeyLabel: "openclaw-lark", KeyProvider: core.KeylessProviderLarkSuite,
+	}
+	form := url.Values{}
+	used, err := ca.applyClientAssertion(context.Background(), form, "open.feishu.cn")
+	if err != nil || !used {
+		t.Fatalf("applyClientAssertion = used %v err %v", used, err)
+	}
+	if form.Get("client_assertion") != "external.jwt.1" || form.Has("client_secret") ||
+		fake.keyRef != "openclaw-lark" || fake.clientID != "cli_external" || fake.audience != "open.feishu.cn" {
+		t.Fatalf("form=%v signer=(%q,%q,%q)", form, fake.keyRef, fake.clientID, fake.audience)
+	}
+}
+
+func TestClientAuth_ResolveSignerPreparedCopyReusesResolutionAndRemintsAssertions(t *testing.T) {
+	fake := &fakeExternalAssertionSigner{}
+	resolveCalls := 0
+	previous := resolveExternalAssertionSigner
+	resolveExternalAssertionSigner = func(_ context.Context, provider string) (clientAssertionSigner, error) {
+		resolveCalls++
+		if provider != core.KeylessProviderLarkSuite {
+			t.Fatalf("provider = %q", provider)
+		}
+		return fake, nil
+	}
+	t.Cleanup(func() { resolveExternalAssertionSigner = previous })
+
+	original := ClientAuth{
+		AppID: "cli_external", AuthMethod: core.AuthMethodPrivateKeyJWT,
+		KeyLabel: "openclaw-lark", KeyProvider: core.KeylessProviderLarkSuite,
+	}
+	prepared, err := original.ResolveSigner(context.Background())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if original.externalSigner != nil {
+		t.Fatal("ResolveSigner must return a prepared copy without mutating the original")
+	}
+
+	forms := []url.Values{{}, {}}
+	for _, form := range forms {
+		used, err := prepared.applyClientAssertion(context.Background(), form, "open.feishu.cn")
+		if err != nil || !used {
+			t.Fatalf("applyClientAssertion = used %v err %v", used, err)
+		}
+	}
+
+	if resolveCalls != 1 {
+		t.Fatalf("provider resolution calls = %d, want 1", resolveCalls)
+	}
+	if fake.calls != 2 {
+		t.Fatalf("assertion signing calls = %d, want 2", fake.calls)
+	}
+	first := forms[0].Get("client_assertion")
+	second := forms[1].Get("client_assertion")
+	if first == "" || second == "" || first == second {
+		t.Fatalf("assertions = (%q, %q), want two fresh values", first, second)
+	}
+	for _, form := range forms {
+		if form.Has("client_secret") {
+			t.Fatalf("private_key_jwt form leaked client_secret: %v", form)
+		}
+	}
+}
+
+func TestClientAuthFromConfig(t *testing.T) {
+	ca := ClientAuthFromConfig(&core.CliConfig{
+		AppID:      "cli_x",
+		AppSecret:  "test-secret",
+		AuthMethod: core.AuthMethodPrivateKeyJWT,
+		KeyLabel:   "label-1",
+	})
+	if ca.AppID != "cli_x" || ca.AppSecret != "test-secret" || ca.AuthMethod != core.AuthMethodPrivateKeyJWT || ca.KeyLabel != "label-1" {
+		t.Errorf("ClientAuth = %+v", ca)
+	}
+}

internal/auth/device_flow.go

@@ -62,7 +62,7 @@ func ResolveOAuthEndpoints(brand core.LarkBrand) OAuthEndpoints {
 }
 
 // RequestDeviceAuthorization requests a device authorization code.
-func RequestDeviceAuthorization(httpClient *http.Client, appId, appSecret string, brand core.LarkBrand, scope string, errOut io.Writer) (*DeviceAuthResponse, error) {
+func RequestDeviceAuthorization(ctx context.Context, httpClient *http.Client, ca ClientAuth, brand core.LarkBrand, scope string, errOut io.Writer) (*DeviceAuthResponse, error) {
 	if errOut == nil {
 		errOut = io.Discard
 	}
@@ -77,18 +77,26 @@ func RequestDeviceAuthorization(httpClient *http.Client, appId, appSecret string
 		}
 	}
 
-	basicAuth := base64.StdEncoding.EncodeToString([]byte(appId + ":" + appSecret))
-
 	form := url.Values{}
-	form.Set("client_id", appId)
+	form.Set("client_id", ca.AppID)
 	form.Set("scope", scope)
 
-	req, err := http.NewRequest("POST", endpoints.DeviceAuthorization, strings.NewReader(form.Encode()))
+	// private_key_jwt authenticates the client with a signed assertion in the
+	// body; client_secret uses HTTP Basic.
+	usedAssertion, err := ca.applyClientAssertion(ctx, form, core.OpenAPIAudience(brand))
+	if err != nil {
+		return nil, err
+	}
+
+	req, err := http.NewRequestWithContext(ctx, "POST", endpoints.DeviceAuthorization, strings.NewReader(form.Encode()))
 	if err != nil {
 		return nil, err
 	}
 	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-	req.Header.Set("Authorization", "Basic "+basicAuth)
+	if !usedAssertion {
+		basicAuth := base64.StdEncoding.EncodeToString([]byte(ca.AppID + ":" + ca.AppSecret))
+		req.Header.Set("Authorization", "Basic "+basicAuth)
+	}
 
 	resp, err := httpClient.Do(req)
 	if err != nil {
@@ -139,7 +147,7 @@ func RequestDeviceAuthorization(httpClient *http.Client, appId, appSecret string
 }
 
 // PollDeviceToken polls the token endpoint until authorization completes or times out.
-func PollDeviceToken(ctx context.Context, httpClient *http.Client, appId, appSecret string, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) *DeviceFlowResult {
+func PollDeviceToken(ctx context.Context, httpClient *http.Client, ca ClientAuth, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) *DeviceFlowResult {
 	if errOut == nil {
 		errOut = io.Discard
 	}
@@ -171,10 +179,16 @@ func PollDeviceToken(ctx context.Context, httpClient *http.Client, appId, appSec
 		form := url.Values{}
 		form.Set("grant_type", "urn:ietf:params:oauth:grant-type:device_code")
 		form.Set("device_code", deviceCode)
-		form.Set("client_id", appId)
-		form.Set("client_secret", appSecret)
+		form.Set("client_id", ca.AppID)
+		usedAssertion, caErr := ca.applyClientAssertion(ctx, form, core.OpenAPIAudience(brand))
+		if caErr != nil {
+			return &DeviceFlowResult{OK: false, Error: "invalid_client", Message: caErr.Error()}
+		}
+		if !usedAssertion {
+			form.Set("client_secret", ca.AppSecret)
+		}
 
-		req, err := http.NewRequest("POST", endpoints.Token, strings.NewReader(form.Encode()))
+		req, err := http.NewRequestWithContext(ctx, "POST", endpoints.Token, strings.NewReader(form.Encode()))
 		if err != nil {
 			continue
 		}

internal/auth/device_flow_test.go

@@ -7,8 +7,10 @@ import (
 	"bytes"
 	"context"
 	"fmt"
+	"io"
 	"log"
 	"net/http"
+	"net/url"
 	"strings"
 	"sync/atomic"
 	"testing"
@@ -83,7 +85,7 @@ func TestRequestDeviceAuthorization_LogsResponse(t *testing.T) {
 	})
 	t.Cleanup(restore)
 
-	_, err := RequestDeviceAuthorization(httpmock.NewClient(reg), "cli_a", "secret_b", core.BrandFeishu, "", nil)
+	_, err := RequestDeviceAuthorization(context.Background(), httpmock.NewClient(reg), ClientAuth{AppID: "cli_a", AppSecret: "test-secret"}, core.BrandFeishu, "", nil)
 	if err != nil {
 		t.Fatalf("RequestDeviceAuthorization() error: %v", err)
 	}
@@ -106,6 +108,66 @@ func TestRequestDeviceAuthorization_LogsResponse(t *testing.T) {
 	}
 }
 
+// captureRT records the last request + body and returns a canned device-auth response.
+func captureDeviceAuthClient(gotReq **http.Request, gotBody *string, respJSON string) *http.Client {
+	return &http.Client{Transport: roundTripFunc(func(req *http.Request) (*http.Response, error) {
+		*gotReq = req
+		if req.Body != nil {
+			b, _ := io.ReadAll(req.Body)
+			*gotBody = string(b)
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader(respJSON)),
+		}, nil
+	})}
+}
+
+const deviceAuthRespJSON = `{"device_code":"dc","user_code":"uc","verification_uri":"https://example/verify","expires_in":300,"interval":5}`
+
+func TestRequestDeviceAuthorization_PrivateKeyJWT_UsesAssertionNotBasic(t *testing.T) {
+	var req *http.Request
+	var body string
+	client := captureDeviceAuthClient(&req, &body, deviceAuthRespJSON)
+
+	ca := ClientAuth{AppID: "cli_a", AuthMethod: core.AuthMethodPrivateKeyJWT, Signer: newFakeAuthSigner(t), KeyLabel: "k"}
+	if _, err := RequestDeviceAuthorization(context.Background(), client, ca, core.BrandFeishu, "im:message:send", nil); err != nil {
+		t.Fatal(err)
+	}
+	if req.Header.Get("Authorization") != "" {
+		t.Errorf("private_key_jwt must NOT send Basic auth, got %q", req.Header.Get("Authorization"))
+	}
+	form, _ := url.ParseQuery(body)
+	if form.Get("client_assertion") == "" {
+		t.Error("missing client_assertion")
+	}
+	if form.Get("client_assertion_type") != "urn:ietf:params:oauth:client-assertion-type:jwt-bearer" {
+		t.Errorf("client_assertion_type = %q", form.Get("client_assertion_type"))
+	}
+	if form.Has("client_secret") {
+		t.Error("client_secret must not be present for private_key_jwt")
+	}
+}
+
+func TestRequestDeviceAuthorization_ClientSecret_UsesBasic(t *testing.T) {
+	var req *http.Request
+	var body string
+	client := captureDeviceAuthClient(&req, &body, deviceAuthRespJSON)
+
+	ca := ClientAuth{AppID: "cli_a", AppSecret: "test-secret"} // client_secret
+	if _, err := RequestDeviceAuthorization(context.Background(), client, ca, core.BrandFeishu, "", nil); err != nil {
+		t.Fatal(err)
+	}
+	if !strings.HasPrefix(req.Header.Get("Authorization"), "Basic ") {
+		t.Errorf("client_secret should use Basic auth, got %q", req.Header.Get("Authorization"))
+	}
+	form, _ := url.ParseQuery(body)
+	if form.Has("client_assertion") {
+		t.Error("client_secret must not send a client_assertion")
+	}
+}
+
 // TestFormatAuthCmdline_TruncatesExtraArgs verifies that long command lines are truncated.
 func TestFormatAuthCmdline_TruncatesExtraArgs(t *testing.T) {
 	got := keychain.FormatAuthCmdline([]string{
@@ -205,7 +267,7 @@ func TestPollDeviceToken_DefaultsZeroIntervalToFiveSeconds(t *testing.T) {
 	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
 	t.Cleanup(cancel)
 
-	result := PollDeviceToken(ctx, client, "cli_a", "secret_b", core.BrandFeishu, "device-code", 0, 10, nil)
+	result := PollDeviceToken(ctx, client, ClientAuth{AppID: "cli_a", AppSecret: "test-secret"}, core.BrandFeishu, "device-code", 0, 10, nil)
 	if result == nil {
 		t.Fatal("PollDeviceToken() returned nil result")
 	}

internal/auth/jwt/jwt.go

@@ -0,0 +1,152 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package jwt builds compact JWS tokens signed by a keysigner.Signer.
+//
+// It deliberately depends only on the standard library plus the existing
+// google/uuid dependency — no third-party JWT library is introduced, keeping
+// go.mod free of new dependencies. The actual signing (and, for ECDSA, the
+// ASN.1->r||s conversion) is delegated to the Signer implementation.
+package jwt
+
+import (
+	"context"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+func b64(b []byte) string { return base64.RawURLEncoding.EncodeToString(b) }
+
+// buildSignedJWT builds a compact JWS:
+//
+//	base64url(header).base64url(claims).base64url(signature)
+//
+// alg is written into the header (it is part of the signed input) and verified
+// against the alg the signer reports, guarding against a header/key mismatch.
+// typ defaults to "JWT" because the client-assertion endpoint requires that
+// protected-header value, even though some protocol examples show only alg.
+func buildSignedJWT(ctx context.Context, signer keysigner.Signer, ref keysigner.KeyRef, alg string, header, claims map[string]any) (string, error) {
+	if signer == nil {
+		return "", fmt.Errorf("jwt: no signer available (private_key_jwt unsupported on this build)")
+	}
+	if header == nil {
+		header = map[string]any{}
+	}
+	header["alg"] = alg
+	if _, ok := header["typ"]; !ok {
+		header["typ"] = "JWT"
+	}
+
+	hb, err := json.Marshal(header)
+	if err != nil {
+		return "", fmt.Errorf("jwt: marshal header: %w", err)
+	}
+	cb, err := json.Marshal(claims)
+	if err != nil {
+		return "", fmt.Errorf("jwt: marshal claims: %w", err)
+	}
+
+	signingInput := b64(hb) + "." + b64(cb)
+	sig, gotAlg, err := signer.Sign(ctx, ref, []byte(signingInput))
+	if err != nil {
+		return "", fmt.Errorf("jwt: sign: %w", err)
+	}
+	if gotAlg != alg {
+		return "", fmt.Errorf("jwt: signer alg %q does not match header alg %q", gotAlg, alg)
+	}
+	return signingInput + "." + b64(sig), nil
+}
+
+// newJTI returns a random unique token identifier.
+func newJTI() string { return uuid.NewString() }
+
+// attestationTTL bounds the attestation JWT's lifetime. The init nonce (60s,
+// single-use) is the real anti-replay constraint; this is a modest margin for
+// clock skew on top of the immediate init→sign→begin round-trip.
+const attestationTTL = 2 * time.Minute
+
+// attestationClaims builds the registration attestation claim set per the App
+// Registration JWT spec: jti, iat, exp (all required) and the init-issued nonce.
+func attestationClaims(nonce string, now time.Time) map[string]any {
+	return map[string]any{
+		"jti":   newJTI(),
+		"iat":   now.Unix(),
+		"exp":   now.Add(attestationTTL).Unix(),
+		"nonce": nonce,
+	}
+}
+
+// clientAssertionClaims builds an RFC 7523 client_assertion claim set used to
+// mint tokens in place of client_secret. aud is the brand's token endpoint URL.
+func clientAssertionClaims(clientID, aud string, now time.Time, ttl time.Duration) map[string]any {
+	return map[string]any{
+		"iss": clientID,
+		"sub": clientID,
+		"aud": aud,
+		"iat": now.Unix(),
+		"exp": now.Add(ttl).Unix(),
+		"jti": newJTI(),
+	}
+}
+
+// ClientAssertionType is the RFC 7523 client_assertion_type value used for JWT
+// bearer client authentication at the token endpoint.
+const ClientAssertionType = "urn:ietf:params:oauth:client-assertion-type:jwt-bearer"
+
+// defaultAssertionTTL bounds a client_assertion's lifetime.
+const defaultAssertionTTL = 5 * time.Minute
+
+// SignAttestation signs the registration attestation JWT. The public key is
+// embedded in the JWS "jwk" header so the registration backend can bind it to
+// the app during action=begin; the claims carry the server nonce as a
+// proof-of-possession challenge.
+func SignAttestation(ctx context.Context, signer keysigner.Signer, ref keysigner.KeyRef, nonce string, now time.Time) (string, error) {
+	if signer == nil {
+		return "", fmt.Errorf("jwt: no signer available (private_key_jwt unsupported on this build)")
+	}
+	pub, err := signer.EnsureKey(ctx, ref)
+	if err != nil {
+		return "", fmt.Errorf("jwt: ensure key: %w", err)
+	}
+	alg, err := keysigner.AlgForKey(pub)
+	if err != nil {
+		return "", err
+	}
+	jwk, err := keysigner.PublicKeyJWK(pub)
+	if err != nil {
+		return "", err
+	}
+	return buildSignedJWT(ctx, signer, ref, alg, map[string]any{"jwk": jwk}, attestationClaims(nonce, now))
+}
+
+// SignClientAssertion mints a short-lived RFC 7523 client_assertion: it reads the
+// registered key (it must already exist — bound at registration; a missing key is
+// an error, not a reason to create a new unbound one), derives the JWS alg from
+// the public key, and signs an assertion whose audience is the brand's Open API
+// host. The server, holding the public key bound at registration, verifies it in
+// place of client_secret. The assertion header carries only alg (no jwk/kid);
+// the server locates the key via iss/sub = client_id.
+//
+// This is the model-independent glue: the assertion JWT is identical whether the
+// server augments an existing grant (device_code/refresh_token) with client
+// authentication or uses a dedicated jwt-bearer grant — only where the caller
+// attaches it differs.
+func SignClientAssertion(ctx context.Context, signer keysigner.Signer, ref keysigner.KeyRef, clientID, audience string, now time.Time) (string, error) {
+	if signer == nil {
+		return "", fmt.Errorf("jwt: no signer available (private_key_jwt unsupported on this build)")
+	}
+	pub, err := signer.PublicKey(ctx, ref)
+	if err != nil {
+		return "", fmt.Errorf("jwt: public key: %w", err)
+	}
+	alg, err := keysigner.AlgForKey(pub)
+	if err != nil {
+		return "", err
+	}
+	return buildSignedJWT(ctx, signer, ref, alg, map[string]any{}, clientAssertionClaims(clientID, audience, now, defaultAssertionTTL))
+}

internal/auth/jwt/jwt_test.go

@@ -0,0 +1,254 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package jwt
+
+import (
+	"context"
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/json"
+	"math/big"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/larksuite/cli/internal/keysigner"
+)
+
+// fakeSigner is a real in-memory ECDSA P-256 signer, so tests exercise the full
+// JWS path and the produced token is actually cryptographically verifiable.
+type fakeSigner struct{ key *ecdsa.PrivateKey }
+
+func newFakeSigner(t *testing.T) *fakeSigner {
+	t.Helper()
+	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &fakeSigner{key: k}
+}
+
+func (f *fakeSigner) EnsureKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return f.key.Public(), nil
+}
+func (f *fakeSigner) PublicKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return f.key.Public(), nil
+}
+func (f *fakeSigner) Sign(_ context.Context, _ keysigner.KeyRef, in []byte) ([]byte, string, error) {
+	h := sha256.Sum256(in)
+	r, s, err := ecdsa.Sign(rand.Reader, f.key, h[:])
+	if err != nil {
+		return nil, "", err
+	}
+	// JOSE ES256: fixed-width big-endian r||s (32 bytes each for P-256).
+	sig := make([]byte, 64)
+	r.FillBytes(sig[:32])
+	s.FillBytes(sig[32:])
+	return sig, keysigner.AlgES256, nil
+}
+
+func TestBuildSignedJWT_VerifiableES256(t *testing.T) {
+	f := newFakeSigner(t)
+	now := time.Unix(1700000000, 0)
+
+	tok, err := buildSignedJWT(context.Background(), f, keysigner.KeyRef{Label: "x"}, keysigner.AlgES256,
+		map[string]any{}, clientAssertionClaims("cli_app", "https://accounts.example/token", now, 5*time.Minute))
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	parts := strings.Split(tok, ".")
+	if len(parts) != 3 {
+		t.Fatalf("want 3 JWS parts, got %d", len(parts))
+	}
+
+	hb, err := base64.RawURLEncoding.DecodeString(parts[0])
+	if err != nil {
+		t.Fatalf("header not base64url: %v", err)
+	}
+	var hdr map[string]any
+	if err := json.Unmarshal(hb, &hdr); err != nil {
+		t.Fatal(err)
+	}
+	if hdr["alg"] != "ES256" || hdr["typ"] != "JWT" {
+		t.Errorf("header = %v, want alg=ES256 typ=JWT", hdr)
+	}
+
+	cb, _ := base64.RawURLEncoding.DecodeString(parts[1])
+	var claims map[string]any
+	if err := json.Unmarshal(cb, &claims); err != nil {
+		t.Fatal(err)
+	}
+	if claims["iss"] != "cli_app" || claims["sub"] != "cli_app" || claims["aud"] != "https://accounts.example/token" {
+		t.Errorf("claims = %v", claims)
+	}
+
+	// Cryptographically verify the signature against the signing input.
+	sig, err := base64.RawURLEncoding.DecodeString(parts[2])
+	if err != nil {
+		t.Fatalf("sig not base64url: %v", err)
+	}
+	if len(sig) != 64 {
+		t.Fatalf("ES256 sig len = %d, want 64", len(sig))
+	}
+	r := new(big.Int).SetBytes(sig[:32])
+	s := new(big.Int).SetBytes(sig[32:])
+	h := sha256.Sum256([]byte(parts[0] + "." + parts[1]))
+	if !ecdsa.Verify(f.key.Public().(*ecdsa.PublicKey), h[:], r, s) {
+		t.Error("signature did not verify")
+	}
+}
+
+func TestBuildSignedJWT_NilSigner(t *testing.T) {
+	if _, err := buildSignedJWT(context.Background(), nil, keysigner.KeyRef{}, "ES256", nil, nil); err == nil {
+		t.Fatal("expected error for nil signer")
+	}
+}
+
+func TestBuildSignedJWT_AlgMismatch(t *testing.T) {
+	f := newFakeSigner(t) // always reports ES256
+	if _, err := buildSignedJWT(context.Background(), f, keysigner.KeyRef{}, keysigner.AlgRS256, nil, nil); err == nil {
+		t.Fatal("expected error when header alg != signer alg")
+	}
+}
+
+func TestBuildSignedJWT_MarshalErrors(t *testing.T) {
+	f := newFakeSigner(t)
+	ctx := context.Background()
+
+	_, err := buildSignedJWT(ctx, f, keysigner.KeyRef{}, keysigner.AlgES256,
+		map[string]any{"bad": func() {}}, nil)
+	if err == nil || !strings.Contains(err.Error(), "jwt: marshal header") {
+		t.Fatalf("header marshal error = %v, want prefix %q", err, "jwt: marshal header")
+	}
+
+	_, err = buildSignedJWT(ctx, f, keysigner.KeyRef{}, keysigner.AlgES256,
+		nil, map[string]any{"bad": make(chan int)})
+	if err == nil || !strings.Contains(err.Error(), "jwt: marshal claims") {
+		t.Fatalf("claims marshal error = %v, want prefix %q", err, "jwt: marshal claims")
+	}
+}
+
+func TestSignClientAssertion(t *testing.T) {
+	f := newFakeSigner(t)
+	now := time.Unix(1700000000, 0)
+	const aud = "https://accounts.feishu.cn/open-apis/authen/v2/oauth/token"
+
+	tok, err := SignClientAssertion(context.Background(), f, keysigner.KeyRef{Label: "k"}, "cli_app", aud, now)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	parts := strings.Split(tok, ".")
+	if len(parts) != 3 {
+		t.Fatalf("want 3 parts, got %d", len(parts))
+	}
+	cb, _ := base64.RawURLEncoding.DecodeString(parts[1])
+	var claims map[string]any
+	if err := json.Unmarshal(cb, &claims); err != nil {
+		t.Fatal(err)
+	}
+	if claims["iss"] != "cli_app" || claims["aud"] != aud {
+		t.Errorf("claims = %v", claims)
+	}
+
+	// Signature must verify against the key's public half.
+	sig, _ := base64.RawURLEncoding.DecodeString(parts[2])
+	r := new(big.Int).SetBytes(sig[:32])
+	s := new(big.Int).SetBytes(sig[32:])
+	h := sha256.Sum256([]byte(parts[0] + "." + parts[1]))
+	if !ecdsa.Verify(f.key.Public().(*ecdsa.PublicKey), h[:], r, s) {
+		t.Error("client_assertion signature did not verify")
+	}
+}
+
+func TestSignClientAssertion_NilSigner(t *testing.T) {
+	if _, err := SignClientAssertion(context.Background(), nil, keysigner.KeyRef{}, "cli_app", "aud", time.Unix(0, 0)); err == nil {
+		t.Fatal("expected error for nil signer")
+	}
+}
+
+func TestSignAttestation(t *testing.T) {
+	f := newFakeSigner(t)
+	now := time.Unix(1700000000, 0)
+
+	tok, err := SignAttestation(context.Background(), f, keysigner.KeyRef{Label: "k"}, "nonce-abc", now)
+	if err != nil {
+		t.Fatal(err)
+	}
+	parts := strings.Split(tok, ".")
+	if len(parts) != 3 {
+		t.Fatalf("want 3 parts, got %d", len(parts))
+	}
+
+	hb, _ := base64.RawURLEncoding.DecodeString(parts[0])
+	var hdr map[string]any
+	if err := json.Unmarshal(hb, &hdr); err != nil {
+		t.Fatal(err)
+	}
+	jwk, ok := hdr["jwk"].(map[string]any)
+	if !ok {
+		t.Fatalf("attestation header missing jwk: %v", hdr)
+	}
+	if jwk["kty"] != "EC" || jwk["crv"] != "P-256" || jwk["use"] != "sig" {
+		t.Errorf("jwk = %v", jwk)
+	}
+
+	cb, _ := base64.RawURLEncoding.DecodeString(parts[1])
+	var claims map[string]any
+	if err := json.Unmarshal(cb, &claims); err != nil {
+		t.Fatal(err)
+	}
+	if claims["nonce"] != "nonce-abc" {
+		t.Errorf("nonce = %v", claims["nonce"])
+	}
+	// jti, iat, exp are all required by the attestation spec.
+	iat, iatOK := claims["iat"].(float64)
+	exp, expOK := claims["exp"].(float64)
+	if !iatOK || !expOK || exp <= iat {
+		t.Errorf("claims iat/exp invalid: iat=%v exp=%v", claims["iat"], claims["exp"])
+	}
+	if jti, _ := claims["jti"].(string); jti == "" {
+		t.Error("claims jti empty")
+	}
+
+	// Signature verifies against the embedded key.
+	sig, _ := base64.RawURLEncoding.DecodeString(parts[2])
+	r := new(big.Int).SetBytes(sig[:32])
+	s := new(big.Int).SetBytes(sig[32:])
+	h := sha256.Sum256([]byte(parts[0] + "." + parts[1]))
+	if !ecdsa.Verify(f.key.Public().(*ecdsa.PublicKey), h[:], r, s) {
+		t.Error("attestation signature did not verify")
+	}
+}
+
+func TestSignAttestation_NilSigner(t *testing.T) {
+	if _, err := SignAttestation(context.Background(), nil, keysigner.KeyRef{}, "n", time.Unix(0, 0)); err == nil {
+		t.Fatal("expected error for nil signer")
+	}
+}
+
+func TestClaimFactories(t *testing.T) {
+	now := time.Unix(1700000000, 0)
+
+	a := attestationClaims("nonce-xyz", now)
+	if a["nonce"] != "nonce-xyz" || a["iat"] != now.Unix() {
+		t.Errorf("attestation claims = %v", a)
+	}
+	if a["exp"] != now.Add(attestationTTL).Unix() {
+		t.Errorf("attestation exp = %v, want %v", a["exp"], now.Add(attestationTTL).Unix())
+	}
+	if jti, _ := a["jti"].(string); jti == "" {
+		t.Error("attestation jti empty")
+	}
+
+	c := clientAssertionClaims("cli_app", "aud", now, time.Minute)
+	if c["exp"].(int64) != now.Add(time.Minute).Unix() {
+		t.Errorf("client_assertion exp = %v", c["exp"])
+	}
+}

internal/auth/testmain_test.go

@@ -0,0 +1,23 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	root, err := os.MkdirTemp("", "lark-cli-internal-auth-test-*")
+	if err != nil {
+		panic(err)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_LOG_DIR", filepath.Join(root, "logs")); err != nil {
+		panic(err)
+	}
+	code := m.Run()
+	_ = os.RemoveAll(root)
+	os.Exit(code)
+}

internal/auth/uat_client.go

@@ -21,6 +21,7 @@ import (
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/errclass"
+	"github.com/larksuite/cli/internal/keysigner"
 	"github.com/larksuite/cli/internal/vfs"
 )
 
@@ -33,11 +34,15 @@ func sanitizeID(id string) string {
 
 // UATCallOptions contains options for UAT API calls.
 type UATCallOptions struct {
-	UserOpenId string
-	AppId      string
-	AppSecret  string
-	Domain     core.LarkBrand
-	ErrOut     io.Writer // diagnostic/status output (caller injects f.IOStreams.ErrOut)
+	UserOpenId  string
+	AppId       string
+	AppSecret   string
+	Domain      core.LarkBrand
+	AuthMethod  string           // "" == client_secret; core.AuthMethodPrivateKeyJWT
+	KeyLabel    string           // TEE key handle for private_key_jwt
+	KeyProvider string           // empty == built-in signer; explicit external route otherwise
+	Signer      keysigner.Signer // active signer for private_key_jwt
+	ErrOut      io.Writer        // diagnostic/status output (caller injects f.IOStreams.ErrOut)
 }
 
 // UATStatus represents the status of a user access token.
@@ -57,11 +62,15 @@ func NewUATCallOptions(cfg *core.CliConfig, errOut io.Writer) UATCallOptions {
 		errOut = os.Stderr
 	}
 	return UATCallOptions{
-		UserOpenId: cfg.UserOpenId,
-		AppId:      cfg.AppID,
-		AppSecret:  cfg.AppSecret,
-		Domain:     cfg.Brand,
-		ErrOut:     errOut,
+		UserOpenId:  cfg.UserOpenId,
+		AppId:       cfg.AppID,
+		AppSecret:   cfg.AppSecret,
+		Domain:      cfg.Brand,
+		AuthMethod:  cfg.AuthMethod,
+		KeyLabel:    cfg.KeyLabel,
+		KeyProvider: cfg.KeyProvider,
+		Signer:      keysigner.Active(),
+		ErrOut:      errOut,
 	}
 }
 
@@ -187,13 +196,31 @@ func doRefreshToken(httpClient *http.Client, opts UATCallOptions, stored *Stored
 	}
 
 	endpoints := ResolveOAuthEndpoints(opts.Domain)
+	clientAuth := ClientAuth{
+		AppID:       opts.AppId,
+		AppSecret:   opts.AppSecret,
+		AuthMethod:  opts.AuthMethod,
+		Signer:      opts.Signer,
+		KeyLabel:    opts.KeyLabel,
+		KeyProvider: opts.KeyProvider,
+	}
+	clientAuth, err := clientAuth.ResolveSigner(context.Background())
+	if err != nil {
+		return nil, err
+	}
 
 	callEndpoint := func() (map[string]interface{}, error) {
 		form := url.Values{}
 		form.Set("grant_type", "refresh_token")
 		form.Set("refresh_token", stored.RefreshToken)
 		form.Set("client_id", opts.AppId)
-		form.Set("client_secret", opts.AppSecret)
+		usedAssertion, caErr := clientAuth.applyClientAssertion(context.Background(), form, core.OpenAPIAudience(opts.Domain))
+		if caErr != nil {
+			return nil, caErr
+		}
+		if !usedAssertion {
+			form.Set("client_secret", opts.AppSecret)
+		}
 
 		req, err := http.NewRequest("POST", endpoints.Token, strings.NewReader(form.Encode()))
 		if err != nil {

internal/auth/uat_client_options_test.go

@@ -38,3 +38,27 @@ func TestNewUATCallOptions(t *testing.T) {
 		t.Error("ErrOut not set correctly")
 	}
 }
+
+// TestNewUATCallOptions_PrivateKeyJWT verifies the auth-method fields propagate
+// so the refresh path can mint a client_assertion instead of sending a secret.
+func TestNewUATCallOptions_PrivateKeyJWT(t *testing.T) {
+	cfg := &core.CliConfig{
+		AppID:       "cli_pk",
+		Brand:       core.BrandFeishu,
+		UserOpenId:  "ou_test",
+		AuthMethod:  core.AuthMethodPrivateKeyJWT,
+		KeyLabel:    "agent-key",
+		KeyProvider: core.KeylessProviderLarkSuite,
+	}
+	opts := NewUATCallOptions(cfg, &bytes.Buffer{})
+
+	if opts.AuthMethod != core.AuthMethodPrivateKeyJWT {
+		t.Errorf("AuthMethod = %q, want private_key_jwt", opts.AuthMethod)
+	}
+	if opts.KeyLabel != "agent-key" {
+		t.Errorf("KeyLabel = %q, want agent-key", opts.KeyLabel)
+	}
+	if opts.KeyProvider != core.KeylessProviderLarkSuite {
+		t.Errorf("KeyProvider = %q, want %q", opts.KeyProvider, core.KeylessProviderLarkSuite)
+	}
+}

internal/auth/uat_client_test.go

@@ -0,0 +1,122 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package auth
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/larksuite/cli/internal/auth/jwt"
+	"github.com/larksuite/cli/internal/core"
+)
+
+type uatRoundTripFunc func(*http.Request) (*http.Response, error)
+
+func (fn uatRoundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return fn(req)
+}
+
+type retryExternalAssertionSigner struct {
+	calls int
+}
+
+func (s *retryExternalAssertionSigner) SignClientAssertion(_ context.Context, _, _, _ string) (string, string, error) {
+	s.calls++
+	return jwt.ClientAssertionType, fmt.Sprintf("refresh.jwt.%d", s.calls), nil
+}
+
+func TestDoRefreshToken_PrivateKeyJWTRetryResolvesOnceAndRemintsAssertion(t *testing.T) {
+	signer := &retryExternalAssertionSigner{}
+	resolveCalls := 0
+	previous := resolveExternalAssertionSigner
+	resolveExternalAssertionSigner = func(_ context.Context, provider string) (clientAssertionSigner, error) {
+		resolveCalls++
+		if provider != core.KeylessProviderLarkSuite {
+			t.Fatalf("provider = %q", provider)
+		}
+		return signer, nil
+	}
+	t.Cleanup(func() { resolveExternalAssertionSigner = previous })
+
+	var forms []url.Values
+	httpClient := &http.Client{Transport: uatRoundTripFunc(func(req *http.Request) (*http.Response, error) {
+		body, err := io.ReadAll(req.Body)
+		if err != nil {
+			return nil, err
+		}
+		form, err := url.ParseQuery(string(body))
+		if err != nil {
+			return nil, err
+		}
+		forms = append(forms, form)
+
+		responseBody := `{"code":20050,"error":"server_error","error_description":"retry"}`
+		if len(forms) == 2 {
+			// A success-shaped response without a token lets the test exercise the
+			// retry without writing platform keychain state.
+			responseBody = `{"code":0}`
+		}
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Header:     make(http.Header),
+			Body:       io.NopCloser(strings.NewReader(responseBody)),
+			Request:    req,
+		}, nil
+	})}
+
+	now := time.Now().UnixMilli()
+	stored := &StoredUAToken{
+		UserOpenId:       "ou_test",
+		AppId:            "cli_external",
+		RefreshToken:     "refresh-token",
+		RefreshExpiresAt: now + int64(time.Hour/time.Millisecond),
+		Scope:            "offline_access",
+		GrantedAt:        now,
+	}
+	opts := UATCallOptions{
+		UserOpenId:  stored.UserOpenId,
+		AppId:       stored.AppId,
+		Domain:      core.BrandFeishu,
+		AuthMethod:  core.AuthMethodPrivateKeyJWT,
+		KeyLabel:    "openclaw-lark",
+		KeyProvider: core.KeylessProviderLarkSuite,
+		ErrOut:      io.Discard,
+	}
+
+	updated, err := doRefreshToken(httpClient, opts, stored)
+	if err == nil || !strings.Contains(err.Error(), "no access_token") {
+		t.Fatalf("doRefreshToken error = %v, want missing access_token after retry", err)
+	}
+	if updated != nil {
+		t.Fatalf("updated token = %#v, want nil", updated)
+	}
+	if resolveCalls != 1 {
+		t.Fatalf("provider resolution calls = %d, want 1", resolveCalls)
+	}
+	if signer.calls != 2 {
+		t.Fatalf("assertion signing calls = %d, want 2", signer.calls)
+	}
+	if len(forms) != 2 {
+		t.Fatalf("token endpoint requests = %d, want 2", len(forms))
+	}
+	first := forms[0].Get("client_assertion")
+	second := forms[1].Get("client_assertion")
+	if first == "" || second == "" || first == second {
+		t.Fatalf("assertions = (%q, %q), want two fresh values", first, second)
+	}
+	for _, form := range forms {
+		if form.Get("grant_type") != "refresh_token" {
+			t.Fatalf("grant_type = %q, want refresh_token", form.Get("grant_type"))
+		}
+		if form.Has("client_secret") {
+			t.Fatalf("private_key_jwt form leaked client_secret: %v", form)
+		}
+	}
+}

internal/binding/keyless_types_test.go

@@ -0,0 +1,112 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package binding
+
+import "testing"
+
+func TestListCandidateApps_KeylessSingleAccount(t *testing.T) {
+	apps := ListCandidateApps(&FeishuChannel{
+		AppID:      "cli_keyless",
+		Brand:      "feishu",
+		AuthMethod: AuthMethodPrivateKeyJWT,
+		KeyRef:     "openclaw-lark",
+	})
+	if len(apps) != 1 {
+		t.Fatalf("count = %d, want 1", len(apps))
+	}
+	if !apps[0].IsKeyless() {
+		t.Fatalf("candidate = %#v, want keyless", apps[0])
+	}
+	if apps[0].KeyRef != "openclaw-lark" {
+		t.Fatalf("KeyRef = %q, want openclaw-lark", apps[0].KeyRef)
+	}
+}
+
+func TestListCandidateApps_KeylessMultiAccountInheritance(t *testing.T) {
+	apps := ListCandidateApps(&FeishuChannel{
+		AppID:      "cli_top",
+		Brand:      "lark",
+		AuthMethod: AuthMethodPrivateKeyJWT,
+		KeyRef:     "openclaw-lark",
+		Accounts: map[string]*FeishuAccount{
+			"work": {},
+		},
+	})
+	if len(apps) != 2 {
+		t.Fatalf("count = %d, want 2 (implicit default + work)", len(apps))
+	}
+	app := candidateByLabel(t, apps, "work")
+	if app.Label != "work" || app.AppID != "cli_top" || app.Brand != "lark" {
+		t.Fatalf("candidate identity = %#v", app)
+	}
+	if app.AuthMethod != AuthMethodPrivateKeyJWT || app.KeyRef != "openclaw-lark" || !app.IsKeyless() {
+		t.Fatalf("candidate keyless fields = %#v", app)
+	}
+}
+
+func TestListCandidateApps_KeylessAccountOverride(t *testing.T) {
+	apps := ListCandidateApps(&FeishuChannel{
+		AppID:      "cli_top",
+		AuthMethod: AuthMethodPrivateKeyJWT,
+		KeyRef:     "top-key",
+		Accounts: map[string]*FeishuAccount{
+			"work": {AppID: "cli_work", KeyRef: "work-key"},
+		},
+	})
+	if len(apps) != 2 {
+		t.Fatalf("count = %d, want 2 (implicit default + work)", len(apps))
+	}
+	if got := candidateByLabel(t, apps, "work"); got.AppID != "cli_work" || got.KeyRef != "work-key" || !got.IsKeyless() {
+		t.Fatalf("candidate = %#v", got)
+	}
+}
+
+func candidateByLabel(t *testing.T, apps []CandidateApp, label string) CandidateApp {
+	t.Helper()
+	for _, app := range apps {
+		if app.Label == label {
+			return app
+		}
+	}
+	t.Fatalf("candidate %q not found in %#v", label, apps)
+	return CandidateApp{}
+}
+
+func TestCandidateApp_SecretTakesPrecedenceOverKeyless(t *testing.T) {
+	app := CandidateApp{
+		AppID:      "cli_both",
+		AppSecret:  SecretInput{Plain: "secret"},
+		AuthMethod: AuthMethodPrivateKeyJWT,
+		KeyRef:     "openclaw-lark",
+	}
+	if app.IsKeyless() {
+		t.Fatal("an appSecret-backed OpenClaw account must not be treated as keyless")
+	}
+}
+
+func TestCandidateApp_KeylessRequiresKeyRef(t *testing.T) {
+	app := CandidateApp{AppID: "cli_missing_key", AuthMethod: AuthMethodPrivateKeyJWT}
+	if app.IsKeyless() {
+		t.Fatal("private_key_jwt without keyRef must not be treated as usable keyless")
+	}
+}
+
+func TestListCandidateApps_KeylessImplicitDefault(t *testing.T) {
+	apps := ListCandidateApps(&FeishuChannel{
+		AppID:      "cli_default",
+		AuthMethod: AuthMethodPrivateKeyJWT,
+		KeyRef:     "openclaw-lark",
+		Accounts: map[string]*FeishuAccount{
+			"work": {AppID: "cli_work", AuthMethod: AuthMethodPrivateKeyJWT, KeyRef: "work-key"},
+		},
+	})
+	if len(apps) != 2 {
+		t.Fatalf("count = %d, want 2", len(apps))
+	}
+	for _, app := range apps {
+		if !app.IsKeyless() {
+			t.Fatalf("candidate = %#v, want keyless", app)
+		}
+	}
+}

internal/binding/types.go

@@ -31,20 +31,24 @@ type ChannelsRoot struct {
 // `Brand` stays aligned with our internal terminology, but the JSON
 // tag matches OpenClaw's on-disk format.
 type FeishuChannel struct {
-	Enabled   *bool                     `json:"enabled,omitempty"` // nil = default enabled
-	AppID     string                    `json:"appId,omitempty"`
-	AppSecret SecretInput               `json:"appSecret,omitempty"`
-	Brand     string                    `json:"domain,omitempty"`
-	Accounts  map[string]*FeishuAccount `json:"accounts,omitempty"`
+	Enabled    *bool                     `json:"enabled,omitempty"` // nil = default enabled
+	AppID      string                    `json:"appId,omitempty"`
+	AppSecret  SecretInput               `json:"appSecret,omitempty"`
+	Brand      string                    `json:"domain,omitempty"`
+	Accounts   map[string]*FeishuAccount `json:"accounts,omitempty"`
+	AuthMethod string                    `json:"authMethod,omitempty"`
+	KeyRef     string                    `json:"keyRef,omitempty"`
 }
 
 // FeishuAccount is a single account entry within Accounts.
 // Like FeishuChannel, `Brand` maps to OpenClaw's `domain` key.
 type FeishuAccount struct {
-	Enabled   *bool       `json:"enabled,omitempty"` // nil = default enabled
-	AppID     string      `json:"appId,omitempty"`
-	AppSecret SecretInput `json:"appSecret,omitempty"`
-	Brand     string      `json:"domain,omitempty"`
+	Enabled    *bool       `json:"enabled,omitempty"` // nil = default enabled
+	AppID      string      `json:"appId,omitempty"`
+	AppSecret  SecretInput `json:"appSecret,omitempty"`
+	Brand      string      `json:"domain,omitempty"`
+	AuthMethod string      `json:"authMethod,omitempty"`
+	KeyRef     string      `json:"keyRef,omitempty"`
 }
 
 // isEnabled returns true if the enabled field is nil (default) or explicitly true.
@@ -228,10 +232,25 @@ func LookupProvider(ref *SecretRef, cfg *SecretsConfig) (*ProviderConfig, error)
 
 // CandidateApp represents a bindable app from OpenClaw's feishu channel config.
 type CandidateApp struct {
-	Label     string
-	AppID     string
-	AppSecret SecretInput
-	Brand     string
+	Label      string
+	AppID      string
+	AppSecret  SecretInput
+	Brand      string
+	AuthMethod string
+	KeyRef     string
+}
+
+const AuthMethodPrivateKeyJWT = "private_key_jwt"
+
+// IsKeyless mirrors openclaw-lark's resolved-account precedence: an app
+// secret wins when both credential shapes are present. Only a secretless
+// private_key_jwt account with a keyRef is eligible for helper reuse.
+func (c CandidateApp) IsKeyless() bool {
+	return c.AppSecret.IsZero() && c.AuthMethod == AuthMethodPrivateKeyJWT && strings.TrimSpace(c.KeyRef) != ""
+}
+
+func bindableCredential(secret SecretInput, authMethod, keyRef string) bool {
+	return !secret.IsZero() || (authMethod == AuthMethodPrivateKeyJWT && strings.TrimSpace(keyRef) != "")
 }
 
 // ListCandidateApps enumerates all bindable (enabled) apps from a FeishuChannel.
@@ -243,7 +262,7 @@ func ListCandidateApps(ch *FeishuChannel) []CandidateApp {
 	if len(ch.Accounts) > 0 {
 		apps := make([]CandidateApp, 0, len(ch.Accounts)+1)
 
-		// When accounts exist AND top-level has its own appId+appSecret,
+		// When accounts exist AND top-level has its own bindable credential,
 		// include the top-level as a "default" candidate — aligned with
 		// openclaw-lark getLarkAccountIds() which adds DEFAULT_ACCOUNT_ID
 		// when top-level credentials are present and no explicit "default" exists.
@@ -254,12 +273,15 @@ func ListCandidateApps(ch *FeishuChannel) []CandidateApp {
 				break
 			}
 		}
-		if !hasDefault && ch.AppID != "" && !ch.AppSecret.IsZero() && isEnabled(ch.Enabled) {
+		if !hasDefault && ch.AppID != "" && isEnabled(ch.Enabled) &&
+			bindableCredential(ch.AppSecret, ch.AuthMethod, ch.KeyRef) {
 			apps = append(apps, CandidateApp{
-				Label:     "default",
-				AppID:     ch.AppID,
-				AppSecret: ch.AppSecret,
-				Brand:     ch.Brand,
+				Label:      "default",
+				AppID:      ch.AppID,
+				AppSecret:  ch.AppSecret,
+				Brand:      ch.Brand,
+				AuthMethod: ch.AuthMethod,
+				KeyRef:     ch.KeyRef,
 			})
 		}
 
@@ -282,11 +304,21 @@ func ListCandidateApps(ch *FeishuChannel) []CandidateApp {
 			if brand == "" {
 				brand = ch.Brand
 			}
+			authMethod := acct.AuthMethod
+			if authMethod == "" {
+				authMethod = ch.AuthMethod
+			}
+			keyRef := acct.KeyRef
+			if keyRef == "" {
+				keyRef = ch.KeyRef
+			}
 			apps = append(apps, CandidateApp{
-				Label:     label,
-				AppID:     appID,
-				AppSecret: appSecret,
-				Brand:     brand,
+				Label:      label,
+				AppID:      appID,
+				AppSecret:  appSecret,
+				Brand:      brand,
+				AuthMethod: authMethod,
+				KeyRef:     keyRef,
 			})
 		}
 		return apps
@@ -295,10 +327,12 @@ func ListCandidateApps(ch *FeishuChannel) []CandidateApp {
 	// Single account at top level — check if channel itself is enabled
 	if ch.AppID != "" && isEnabled(ch.Enabled) {
 		return []CandidateApp{{
-			Label:     "",
-			AppID:     ch.AppID,
-			AppSecret: ch.AppSecret,
-			Brand:     ch.Brand,
+			Label:      "",
+			AppID:      ch.AppID,
+			AppSecret:  ch.AppSecret,
+			Brand:      ch.Brand,
+			AuthMethod: ch.AuthMethod,
+			KeyRef:     ch.KeyRef,
 		}}
 	}
 

internal/client/response.go

@@ -132,16 +132,14 @@ func HandleResponse(resp *larkcore.ApiResp, opts ResponseOptions) error {
 			})
 		}
 
-		// 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)
-		}
-		output.FormatValue(opts.Out, result, opts.Format)
-		return nil
+		emitter := output.NewEmitter(output.EmitterConfig{
+			Out:            opts.Out,
+			ErrOut:         opts.ErrOut,
+			CommandPath:    opts.CommandPath,
+			Identity:       string(identity),
+			NoticeProvider: output.GetNotice,
+		})
+		return emitter.Success(result, output.EmitOptions{Format: opts.Format.String()})
 	}
 
 	// Non-JSON (binary) responses.

internal/client/response_test.go

@@ -18,6 +18,7 @@ import (
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/httpmock"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/vfs/localfileio"
 )
@@ -239,6 +240,87 @@ func TestHandleResponse_JSON(t *testing.T) {
 	}
 }
 
+func TestHandleResponse_NonJSONFormatsEmitExactStructuredResponseBytes(t *testing.T) {
+	tests := []struct {
+		name   string
+		format output.Format
+		want   string
+	}{
+		{
+			name:   "ndjson",
+			format: output.FormatNDJSON,
+			want:   "{\"id\":\"1\",\"name\":\"Alice\"}\n{\"id\":\"2\",\"name\":\"Bob\"}\n",
+		},
+		{
+			name:   "table",
+			format: output.FormatTable,
+			want:   "id  name \n──  ─────\n1   Alice\n2   Bob  \n",
+		},
+		{
+			name:   "csv",
+			format: output.FormatCSV,
+			want:   "id,name\n1,Alice\n2,Bob\n",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "off")
+			reg := &httpmock.Registry{}
+			reg.Register(&httpmock.Stub{
+				Method: http.MethodGet,
+				URL:    "/open-apis/test/v1/items",
+				Body: map[string]interface{}{
+					"code": 0,
+					"msg":  "ok",
+					"data": map[string]interface{}{
+						"items": []interface{}{
+							map[string]interface{}{"id": "1", "name": "Alice"},
+							map[string]interface{}{"id": "2", "name": "Bob"},
+						},
+						"has_more": false,
+					},
+				},
+			})
+
+			httpResp, err := httpmock.NewClient(reg).Get("https://open.feishu.cn/open-apis/test/v1/items")
+			if err != nil {
+				t.Fatalf("fixture request failed: %v", err)
+			}
+			body, err := io.ReadAll(httpResp.Body)
+			_ = httpResp.Body.Close()
+			if err != nil {
+				t.Fatalf("read fixture response: %v", err)
+			}
+			resp := &larkcore.ApiResp{
+				StatusCode: httpResp.StatusCode,
+				Header:     httpResp.Header.Clone(),
+				RawBody:    body,
+			}
+
+			var out bytes.Buffer
+			var errOut bytes.Buffer
+			err = HandleResponse(resp, ResponseOptions{
+				Format:      tt.format,
+				Identity:    core.AsBot,
+				Out:         &out,
+				ErrOut:      &errOut,
+				CommandPath: "lark-cli api GET",
+			})
+			if err != nil {
+				t.Fatalf("HandleResponse() error = %v, want nil", err)
+			}
+			if got := out.String(); got != tt.want {
+				t.Fatalf("stdout byte mismatch\ngot (%d bytes):\n%q\nwant (%d bytes):\n%q", len(got), got, len(tt.want), tt.want)
+			}
+			if got := errOut.String(); got != "" {
+				t.Fatalf("stderr bytes = %q, want empty", got)
+			}
+			reg.Verify(t)
+		})
+	}
+}
+
 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"})

internal/cmdutil/dryrun.go

@@ -8,15 +8,29 @@ import (
 	"fmt"
 	"io"
 	"net/url"
+	"regexp"
 	"sort"
 	"strings"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/client"
 	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/util"
 )
 
+var dryRunURLPlaceholderRE = regexp.MustCompile(`:([A-Za-z_][A-Za-z0-9_]*)`)
+
+// DryRunOutputOptions controls dry-run stdout/stderr rendering.
+type DryRunOutputOptions struct {
+	Format      string
+	JqExpr      string
+	CommandPath string
+	Identity    core.Identity
+	Out         io.Writer
+	ErrOut      io.Writer
+}
+
 // DryRunAPICall describes a single API call in dry-run output.
 type DryRunAPICall struct {
 	Desc   string                 `json:"desc,omitempty"`
@@ -26,12 +40,21 @@ type DryRunAPICall struct {
 	Body   interface{}            `json:"body,omitempty"`
 }
 
+// DryRunContext is the execution context shared by every dry-run preview:
+// which app would make the call and, when known, as which user. The identity
+// itself lives at the envelope top level, not here.
+type DryRunContext struct {
+	AppID      string `json:"app_id,omitempty"`
+	UserOpenID string `json:"user_open_id,omitempty"`
+}
+
 // DryRunAPI is the builder and result type for dry-run output.
 // URL templates use :param placeholders; Set stores actual values; MarshalJSON and Format resolve them.
 type DryRunAPI struct {
-	desc  string
-	calls []DryRunAPICall
-	extra map[string]interface{}
+	desc    string
+	calls   []DryRunAPICall
+	context *DryRunContext
+	extra   map[string]interface{}
 }
 
 func NewDryRunAPI() *DryRunAPI {
@@ -40,30 +63,22 @@ func NewDryRunAPI() *DryRunAPI {
 
 // --- HTTP method builders (add a call, return self for chaining) ---
 
-func (d *DryRunAPI) GET(url string) *DryRunAPI {
-	d.calls = append(d.calls, DryRunAPICall{Method: "GET", URL: url})
+// call appends a request with the method transcribed verbatim, so previews
+// never misreport what the real client would send.
+func (d *DryRunAPI) call(method, url string) *DryRunAPI {
+	d.calls = append(d.calls, DryRunAPICall{Method: method, URL: url})
 	return d
 }
 
-func (d *DryRunAPI) POST(url string) *DryRunAPI {
-	d.calls = append(d.calls, DryRunAPICall{Method: "POST", URL: url})
-	return d
-}
+func (d *DryRunAPI) GET(url string) *DryRunAPI { return d.call("GET", url) }
 
-func (d *DryRunAPI) PUT(url string) *DryRunAPI {
-	d.calls = append(d.calls, DryRunAPICall{Method: "PUT", URL: url})
-	return d
-}
+func (d *DryRunAPI) POST(url string) *DryRunAPI { return d.call("POST", url) }
 
-func (d *DryRunAPI) DELETE(url string) *DryRunAPI {
-	d.calls = append(d.calls, DryRunAPICall{Method: "DELETE", URL: url})
-	return d
-}
+func (d *DryRunAPI) PUT(url string) *DryRunAPI { return d.call("PUT", url) }
 
-func (d *DryRunAPI) PATCH(url string) *DryRunAPI {
-	d.calls = append(d.calls, DryRunAPICall{Method: "PATCH", URL: url})
-	return d
-}
+func (d *DryRunAPI) DELETE(url string) *DryRunAPI { return d.call("DELETE", url) }
+
+func (d *DryRunAPI) PATCH(url string) *DryRunAPI { return d.call("PATCH", url) }
 
 // Body sets the request body on the last added call.
 func (d *DryRunAPI) Body(body interface{}) *DryRunAPI {
@@ -98,12 +113,26 @@ func (d *DryRunAPI) Set(key string, value interface{}) *DryRunAPI {
 	return d
 }
 
+// Context records the calling app/user under data.context; empty values are
+// omitted, and a fully empty context is not emitted at all.
+func (d *DryRunAPI) Context(appID, userOpenID string) *DryRunAPI {
+	if appID == "" && userOpenID == "" {
+		return d
+	}
+	d.context = &DryRunContext{AppID: appID, UserOpenID: userOpenID}
+	return d
+}
+
 // resolveURL replaces :key placeholders in url with path-escaped values from extra.
 func (d *DryRunAPI) resolveURL(rawURL string) string {
-	for k, v := range d.extra {
-		rawURL = strings.ReplaceAll(rawURL, ":"+k, url.PathEscape(fmt.Sprintf("%v", v)))
-	}
-	return rawURL
+	return dryRunURLPlaceholderRE.ReplaceAllStringFunc(rawURL, func(token string) string {
+		name := token[1:]
+		value, ok := d.extra[name]
+		if !ok {
+			return token
+		}
+		return url.PathEscape(fmt.Sprintf("%v", value))
+	})
 }
 
 // MarshalJSON serializes as {"description": "...", "api": [...calls with resolved URLs], ...extra}.
@@ -118,13 +147,17 @@ func (d *DryRunAPI) MarshalJSON() ([]byte, error) {
 			Body:   c.Body,
 		}
 	}
-	m := make(map[string]interface{}, len(d.extra)+2)
+	m := make(map[string]interface{}, len(d.extra)+3)
+	for k, v := range d.extra {
+		m[k] = v
+	}
+	// Typed fields win over same-named extra keys.
 	if d.desc != "" {
 		m["description"] = d.desc
 	}
 	m["api"] = resolved
-	for k, v := range d.extra {
-		m[k] = v
+	if d.context != nil {
+		m["context"] = d.context
 	}
 	return json.Marshal(m)
 }
@@ -154,11 +187,7 @@ func (d *DryRunAPI) Format() string {
 			u += "?" + encodeParams(c.Params)
 		}
 
-		method := c.Method
-		if method == "" {
-			method = "GET"
-		}
-		b.WriteString(method)
+		b.WriteString(c.Method)
 		b.WriteByte(' ')
 		b.WriteString(u)
 		b.WriteByte('\n')
@@ -215,83 +244,74 @@ func encodeParams(params map[string]interface{}) string {
 	return vals.Encode()
 }
 
-// PrintDryRunWithFile outputs a dry-run summary for file upload requests.
-// Instead of serializing the Formdata body, it shows file metadata.
-func PrintDryRunWithFile(w io.Writer, request client.RawApiRequest, config *core.CliConfig, format, fileField, filePath string, formFields any) error {
-	dr := NewDryRunAPI()
-	switch request.Method {
-	case "POST":
-		dr.POST(request.URL)
-	case "PUT":
-		dr.PUT(request.URL)
-	case "PATCH":
-		dr.PATCH(request.URL)
-	case "DELETE":
-		dr.DELETE(request.URL)
-	default:
-		dr.GET(request.URL)
-	}
+// buildDryRunPreview assembles the shared preview skeleton: HTTP method, URL,
+// query params, and the app/user context common to every dry-run.
+func buildDryRunPreview(request client.RawApiRequest, config *core.CliConfig) *DryRunAPI {
+	dr := NewDryRunAPI().call(request.Method, request.URL)
 	if len(request.Params) > 0 {
 		dr.Params(request.Params)
 	}
-	filePathDisplay := filePath
+	// Identity is reported at the envelope top level, not duplicated here.
+	dr.Context(config.AppID, config.UserOpenId)
+	return dr
+}
+
+// PrintDryRunWithFile outputs a dry-run summary for file upload requests.
+// Instead of serializing the Formdata body, it shows file metadata.
+func PrintDryRunWithFile(request client.RawApiRequest, config *core.CliConfig, opts DryRunOutputOptions, file FileUploadMeta) error {
+	dr := buildDryRunPreview(request, config)
+	filePathDisplay := file.FilePath
 	if filePathDisplay == "" {
 		filePathDisplay = "<stdin>"
 	}
 	fileInfo := map[string]any{
-		"file": map[string]string{"field": fileField, "path": filePathDisplay},
+		"file": map[string]string{"field": file.FieldName, "path": filePathDisplay},
 	}
-	if formFields != nil {
-		fileInfo["form_fields"] = formFields
+	if file.FormFields != nil {
+		fileInfo["form_fields"] = file.FormFields
 	}
 	fileInfo["options"] = []string{"WithFileUpload"}
 	dr.Body(fileInfo)
-	dr.Set("as", string(request.As))
-	dr.Set("appId", config.AppID)
-	if config.UserOpenId != "" {
-		dr.Set("userOpenId", config.UserOpenId)
-	}
-	fmt.Fprintln(w, "=== Dry Run ===")
-	if format == "pretty" {
-		fmt.Fprint(w, dr.Format())
-	} else {
-		output.PrintJson(w, dr)
-	}
-	return nil
+	return WriteDryRun(dr, opts)
 }
 
 // PrintDryRun outputs a standardised dry-run summary using DryRunAPI.
 // When format is "pretty", outputs human-readable text; otherwise JSON.
-func PrintDryRun(w io.Writer, request client.RawApiRequest, config *core.CliConfig, format string) error {
-	dr := NewDryRunAPI()
-	switch request.Method {
-	case "POST":
-		dr.POST(request.URL)
-	case "PUT":
-		dr.PUT(request.URL)
-	case "PATCH":
-		dr.PATCH(request.URL)
-	case "DELETE":
-		dr.DELETE(request.URL)
-	default:
-		dr.GET(request.URL)
-	}
-	if len(request.Params) > 0 {
-		dr.Params(request.Params)
-	}
+func PrintDryRun(request client.RawApiRequest, config *core.CliConfig, opts DryRunOutputOptions) error {
+	dr := buildDryRunPreview(request, config)
 	if !util.IsNil(request.Data) {
 		dr.Body(request.Data)
 	}
-	dr.Set("as", string(request.As))
-	dr.Set("appId", config.AppID)
-	if config.UserOpenId != "" {
-		dr.Set("userOpenId", config.UserOpenId)
-	}
-	fmt.Fprintln(w, "=== Dry Run ===")
-	if format == "pretty" {
-		fmt.Fprint(w, dr.Format())
-	} else {
-		output.PrintJson(w, dr)
-	}
-	return nil
+	return WriteDryRun(dr, opts)
+}
+
+// WriteDryRun emits a DryRunAPI using the shared dry-run output contract.
+// Identity may be empty; the envelope omits it rather than guessing.
+func WriteDryRun(dr *DryRunAPI, opts DryRunOutputOptions) error {
+	if dr == nil {
+		return errs.NewInternalError(errs.SubtypeUnknown, "dry-run produced no request preview")
+	}
+	// The JqExpr guard is defensive: every entry point already rejects --jq
+	// combined with --format pretty via output.ValidateJqFlags.
+	if opts.Format == "pretty" && opts.JqExpr == "" {
+		// A nil ErrOut only skips the banner decoration (mirroring
+		// WriteSuccessEnvelope's warning path); the payload write to Out
+		// must fail loudly rather than be silently discarded.
+		if opts.ErrOut != nil {
+			fmt.Fprintln(opts.ErrOut, "=== Dry Run ===")
+		}
+		// stdout carries its own marker so logs that drop stderr still show
+		// this was a preview, not an executed request.
+		fmt.Fprintln(opts.Out, "# dry-run: request not sent")
+		fmt.Fprint(opts.Out, dr.Format())
+		return nil
+	}
+	return output.WriteSuccessEnvelope(dr, output.SuccessEnvelopeOptions{
+		CommandPath: opts.CommandPath,
+		Identity:    string(opts.Identity),
+		DryRun:      true,
+		JqExpr:      opts.JqExpr,
+		Out:         opts.Out,
+		ErrOut:      opts.ErrOut,
+	})
 }

internal/cmdutil/dryrun_test.go

@@ -6,9 +6,12 @@ package cmdutil
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
+	"io"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/client"
 	"github.com/larksuite/cli/internal/core"
 )
@@ -66,11 +69,31 @@ func TestDryRunAPI_ResolveURL(t *testing.T) {
 	}
 }
 
+func TestDryRunAPI_ResolveURLMatchesFullPlaceholderOnly(t *testing.T) {
+	dr := NewDryRunAPI().
+		GET("/open-apis/task/v2/tasks/:assignee_id").
+		Set("assignee", "ou_bot")
+
+	text := dr.Format()
+	if strings.Contains(text, "ou_bot_id") {
+		t.Fatalf("prefix placeholder key corrupted longer token: %s", text)
+	}
+	if !strings.Contains(text, ":assignee_id") {
+		t.Fatalf("missing unresolved placeholder, got: %s", text)
+	}
+
+	dr.Set("assignee_id", "ou_abc/123")
+	text = dr.Format()
+	if !strings.Contains(text, "/open-apis/task/v2/tasks/ou_abc%2F123") {
+		t.Fatalf("expected full placeholder replacement with path escaping, got: %s", text)
+	}
+}
+
 func TestDryRunAPI_MarshalJSON(t *testing.T) {
 	dr := NewDryRunAPI().
 		Desc("test api").
 		GET("/open-apis/test").
-		Set("as", "user")
+		Set("note", "audit")
 
 	data, err := json.Marshal(dr)
 	if err != nil {
@@ -83,8 +106,8 @@ func TestDryRunAPI_MarshalJSON(t *testing.T) {
 	if m["description"] != "test api" {
 		t.Errorf("expected description, got: %v", m["description"])
 	}
-	if m["as"] != "user" {
-		t.Errorf("expected as=user, got: %v", m["as"])
+	if m["note"] != "audit" {
+		t.Errorf("expected note=audit, got: %v", m["note"])
 	}
 	api, ok := m["api"].([]interface{})
 	if !ok || len(api) != 1 {
@@ -123,31 +146,67 @@ func TestDryRunAPI_ExtraFieldsOnly(t *testing.T) {
 
 func TestPrintDryRun_JSON(t *testing.T) {
 	var buf bytes.Buffer
-	err := PrintDryRun(&buf, client.RawApiRequest{
+	var errBuf bytes.Buffer
+	err := PrintDryRun(client.RawApiRequest{
 		Method: "GET",
 		URL:    "/open-apis/test",
 		As:     "user",
-	}, &core.CliConfig{AppID: "app123"}, "json")
+	}, &core.CliConfig{AppID: "app123"}, DryRunOutputOptions{
+		Format:      "json",
+		CommandPath: "lark-cli api",
+		Identity:    core.AsUser,
+		Out:         &buf,
+		ErrOut:      &errBuf,
+	})
 	if err != nil {
 		t.Fatalf("PrintDryRun failed: %v", err)
 	}
 	out := buf.String()
-	if !strings.Contains(out, "=== Dry Run ===") {
-		t.Errorf("expected header, got: %s", out)
+	if strings.Contains(out, "=== Dry Run ===") {
+		t.Fatalf("JSON stdout must not contain banner, got: %s", out)
 	}
-	if !strings.Contains(out, "app123") {
-		t.Errorf("expected appId in output, got: %s", out)
+	var env map[string]interface{}
+	if err := json.Unmarshal(buf.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, out)
+	}
+	if env["ok"] != true || env["identity"] != "user" || env["dry_run"] != true {
+		t.Fatalf("unexpected envelope: %#v", env)
+	}
+	data, ok := env["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("unexpected data: %#v", env["data"])
+	}
+	dctx, ok := data["context"].(map[string]interface{})
+	if !ok || dctx["app_id"] != "app123" {
+		t.Fatalf("unexpected data.context: %#v", data["context"])
+	}
+	if _, exists := data["as"]; exists {
+		t.Fatalf("data.as must not appear; identity lives at the envelope top level: %#v", data)
+	}
+	api, ok := data["api"].([]interface{})
+	if !ok || len(api) != 1 {
+		t.Fatalf("api = %#v, want one call", data["api"])
+	}
+	call, ok := api[0].(map[string]interface{})
+	if !ok || call["url"] != "/open-apis/test" {
+		t.Fatalf("api[0] = %#v", api[0])
 	}
 }
 
 func TestPrintDryRun_Pretty(t *testing.T) {
 	var buf bytes.Buffer
-	err := PrintDryRun(&buf, client.RawApiRequest{
+	var errBuf bytes.Buffer
+	err := PrintDryRun(client.RawApiRequest{
 		Method: "POST",
 		URL:    "/open-apis/test",
 		Data:   map[string]interface{}{"key": "val"},
 		As:     "bot",
-	}, &core.CliConfig{AppID: "app456"}, "pretty")
+	}, &core.CliConfig{AppID: "app456"}, DryRunOutputOptions{
+		Format:   "pretty",
+		Identity: core.AsBot,
+		Out:      &buf,
+		ErrOut:   &errBuf,
+	})
 	if err != nil {
 		t.Fatalf("PrintDryRun failed: %v", err)
 	}
@@ -155,6 +214,136 @@ func TestPrintDryRun_Pretty(t *testing.T) {
 	if !strings.Contains(out, "POST /open-apis/test") {
 		t.Errorf("expected POST line in pretty output, got: %s", out)
 	}
+	if !strings.HasPrefix(out, "# dry-run: request not sent\n") {
+		t.Fatalf("pretty stdout should start with the dry-run marker, got: %s", out)
+	}
+	if strings.Contains(out, "=== Dry Run ===") {
+		t.Fatalf("pretty stdout must not contain banner, got: %s", out)
+	}
+	if !strings.Contains(errBuf.String(), "=== Dry Run ===") {
+		t.Fatalf("pretty stderr should contain banner, got: %s", errBuf.String())
+	}
+}
+
+func TestPrintDryRun_WithJqUsesEnvelope(t *testing.T) {
+	var buf bytes.Buffer
+	err := PrintDryRun(client.RawApiRequest{
+		Method: "GET",
+		URL:    "/open-apis/test",
+		As:     "bot",
+	}, &core.CliConfig{AppID: "app123"}, DryRunOutputOptions{
+		Format:   "json",
+		JqExpr:   ".data.api[0].url",
+		Identity: core.AsBot,
+		Out:      &buf,
+		ErrOut:   io.Discard,
+	})
+	if err != nil {
+		t.Fatalf("PrintDryRun failed: %v", err)
+	}
+	if got := strings.TrimSpace(buf.String()); got != "/open-apis/test" {
+		t.Fatalf("jq output = %q, want /open-apis/test", got)
+	}
+}
+
+func TestPrintDryRunWithFile_JSONEnvelope(t *testing.T) {
+	var buf bytes.Buffer
+	err := PrintDryRunWithFile(client.RawApiRequest{
+		Method: "POST",
+		URL:    "/open-apis/drive/v1/files/upload_all",
+		As:     "bot",
+	}, &core.CliConfig{AppID: "app123", UserOpenId: "ou_tester"}, DryRunOutputOptions{
+		Format:   "json",
+		Identity: core.AsBot,
+		Out:      &buf,
+		ErrOut:   io.Discard,
+	}, FileUploadMeta{FieldName: "file", FilePath: "report.txt", FormFields: map[string]any{"parent": "fld"}})
+	if err != nil {
+		t.Fatalf("PrintDryRunWithFile failed: %v", err)
+	}
+	var env map[string]interface{}
+	if err := json.Unmarshal(buf.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, buf.String())
+	}
+	if env["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", env["dry_run"])
+	}
+	data := env["data"].(map[string]interface{})
+	api := data["api"].([]interface{})
+	call := api[0].(map[string]interface{})
+	body := call["body"].(map[string]interface{})
+	file := body["file"].(map[string]interface{})
+	if file["path"] != "report.txt" {
+		t.Fatalf("file body = %#v", body)
+	}
+	dctx, ok := data["context"].(map[string]interface{})
+	if !ok || dctx["app_id"] != "app123" || dctx["user_open_id"] != "ou_tester" {
+		t.Fatalf("unexpected data.context: %#v", data["context"])
+	}
+	for _, legacy := range []string{"as", "appId", "userOpenId"} {
+		if _, exists := data[legacy]; exists {
+			t.Fatalf("legacy key %q must not appear in data: %#v", legacy, data)
+		}
+	}
+}
+
+func TestPrintDryRun_MethodTranscribedVerbatim(t *testing.T) {
+	var buf bytes.Buffer
+	err := PrintDryRun(client.RawApiRequest{
+		Method: "OPTIONS",
+		URL:    "/open-apis/test",
+		As:     "bot",
+	}, &core.CliConfig{AppID: "app123"}, DryRunOutputOptions{
+		Format:   "json",
+		Identity: core.AsBot,
+		Out:      &buf,
+		ErrOut:   io.Discard,
+	})
+	if err != nil {
+		t.Fatalf("PrintDryRun failed: %v", err)
+	}
+	var env map[string]interface{}
+	if err := json.Unmarshal(buf.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, buf.String())
+	}
+	call := env["data"].(map[string]interface{})["api"].([]interface{})[0].(map[string]interface{})
+	if call["method"] != "OPTIONS" {
+		t.Fatalf("method = %#v, want OPTIONS transcribed verbatim (not coerced to GET)", call["method"])
+	}
+}
+
+func TestPrintDryRun_EmptyConfigOmitsContext(t *testing.T) {
+	var buf bytes.Buffer
+	err := PrintDryRun(client.RawApiRequest{
+		Method: "GET",
+		URL:    "/open-apis/test",
+	}, &core.CliConfig{}, DryRunOutputOptions{
+		Format: "json",
+		Out:    &buf,
+		ErrOut: io.Discard,
+	})
+	if err != nil {
+		t.Fatalf("PrintDryRun failed: %v", err)
+	}
+	var env map[string]interface{}
+	if err := json.Unmarshal(buf.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, buf.String())
+	}
+	data := env["data"].(map[string]interface{})
+	if _, exists := data["context"]; exists {
+		t.Fatalf("empty app/user context must be omitted entirely, got: %#v", data["context"])
+	}
+}
+
+func TestWriteDryRun_NilPreviewIsInternalError(t *testing.T) {
+	err := WriteDryRun(nil, DryRunOutputOptions{Format: "json", Out: io.Discard})
+	if err == nil {
+		t.Fatal("WriteDryRun(nil) should fail instead of emitting an empty preview")
+	}
+	var internal *errs.InternalError
+	if !errors.As(err, &internal) {
+		t.Fatalf("expected *errs.InternalError, got %T: %v", err, err)
+	}
 }
 
 func TestDryRunFormatValue(t *testing.T) {

internal/cmdutil/testmain_test.go

@@ -0,0 +1,30 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmdutil
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	// Default-factory tests initialize the registry and resolve config. Keep
+	// them deterministic: never read the developer's real ~/.lark-cli and
+	// prevent background remote-metadata refreshes from touching user state.
+	root, err := os.MkdirTemp("", "lark-cli-cmdutil-test-*")
+	if err != nil {
+		println("internal/cmdutil test setup: MkdirTemp failed:", err.Error())
+		os.Exit(2)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_CONFIG_DIR", filepath.Join(root, "config")); err != nil {
+		panic(err)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_REMOTE_META", "off"); err != nil {
+		panic(err)
+	}
+	code := m.Run()
+	_ = os.RemoveAll(root)
+	os.Exit(code)
+}

internal/core/config.go

@@ -36,6 +36,14 @@ type AppUser struct {
 	UserName   string `json:"userName"`
 }
 
+// Auth methods for app credentials. An empty AppConfig.AuthMethod means the
+// default, client_secret.
+const (
+	AuthMethodClientSecret  = "client_secret"   // app_id + app_secret
+	authMethodPKJWTValue    = "private_key_jwt" // TEE-signed client_assertion; no app secret
+	AuthMethodPrivateKeyJWT = authMethodPKJWTValue
+)
+
 // AppConfig is a per-app configuration entry (stored format — secrets may be unresolved).
 type AppConfig struct {
 	Name       string      `json:"name,omitempty"`
@@ -46,6 +54,15 @@ type AppConfig struct {
 	DefaultAs  Identity    `json:"defaultAs,omitempty"` // AsUser | AsBot | AsAuto
 	StrictMode *StrictMode `json:"strictMode,omitempty"`
 	Users      []AppUser   `json:"users"`
+
+	// AuthMethod selects how tokens are minted. Empty == AuthMethodClientSecret
+	// (back-compat). AuthMethodPrivateKeyJWT uses a TEE-held key (see KeyRef) to
+	// sign client_assertion JWTs instead of sending an app secret.
+	AuthMethod string `json:"authMethod,omitempty"`
+	// KeyRef references the non-exportable signing key for private_key_jwt.
+	// Source is "tee" and ID is the backend key label; the actual key never
+	// leaves the secure backend, so this is a handle, not secret material.
+	KeyRef *SecretRef `json:"keyRef,omitempty"`
 }
 
 // ProfileName returns the display name for this app config.
@@ -161,7 +178,10 @@ type CliConfig struct {
 	UserOpenId          string
 	UserName            string
 	Lang                i18n.Lang
-	SupportedIdentities uint8 `json:"-"` // bitflag: 1=user, 2=bot; set by credential provider
+	SupportedIdentities uint8  `json:"-"` // bitflag: 1=user, 2=bot; set by credential provider
+	AuthMethod          string // "" == client_secret; AuthMethodPrivateKeyJWT
+	KeyLabel            string // resolved TEE key handle for private_key_jwt
+	KeyProvider         string // empty == built-in signer; otherwise an explicit external signer route
 }
 
 // identityBotBit is the bit flag for bot identity in SupportedIdentities.
@@ -247,31 +267,67 @@ func ResolveConfigFromMulti(raw *MultiAppConfig, kc keychain.KeychainAccess, pro
 			WithHint("available profiles: %s", formatProfileNames(raw.ProfileNames()))
 	}
 
-	if err := ValidateSecretKeyMatch(app.AppId, app.AppSecret); err != nil {
-		return nil, errs.NewConfigError(errs.SubtypeNotConfigured, "appId and appSecret keychain key are out of sync").
-			WithHint("%s", err.Error()).
-			WithCause(err)
+	// Validate the auth method first so a malformed profile fails here rather
+	// than silently degrading to client_secret (unknown method) or failing later
+	// at token-signing. Empty stays empty — downstream treats it as client_secret
+	// (back-compat).
+	switch app.AuthMethod {
+	case "", AuthMethodClientSecret, AuthMethodPrivateKeyJWT:
+	default:
+		return nil, errs.NewConfigError(errs.SubtypeInvalidConfig, "unknown authMethod %q", app.AuthMethod).
+			WithHint("supported: %s, %s (empty defaults to %s)", AuthMethodClientSecret, AuthMethodPrivateKeyJWT, AuthMethodClientSecret)
 	}
 
-	secret, err := ResolveSecretInput(app.AppSecret, kc)
-	if err != nil {
-		if errs.IsTyped(err) {
-			return nil, err
+	// private_key_jwt carries no secret: validate the key handle and skip secret
+	// resolution entirely, so a stale/broken AppSecret ref never produces a
+	// confusing secret-resolution error for an otherwise-valid pkjwt profile.
+	var secret string
+	if app.AuthMethod == AuthMethodPrivateKeyJWT {
+		if app.KeyRef == nil || app.KeyRef.Source != "tee" || app.KeyRef.ID == "" {
+			return nil, errs.NewConfigError(errs.SubtypeInvalidConfig, "private_key_jwt requires a key handle (keyRef) but none is configured").
+				WithHint("re-run: lark-cli config init --new --private-key-jwt")
 		}
-		subtype := errs.SubtypeNotConfigured
-		if isMalformedConfigError(err) {
-			subtype = errs.SubtypeInvalidConfig
+		provider := strings.TrimSpace(app.KeyRef.Provider)
+		switch provider {
+		case "", KeylessProviderLarkSuite:
+		default:
+			return nil, errs.NewConfigError(errs.SubtypeInvalidConfig,
+				"unknown keyless signer provider %q", app.KeyRef.Provider).
+				WithHint("supported external provider: %s; omit provider to use the built-in signer", KeylessProviderLarkSuite)
+		}
+	} else {
+		if err := ValidateSecretKeyMatch(app.AppId, app.AppSecret); err != nil {
+			return nil, errs.NewConfigError(errs.SubtypeNotConfigured, "appId and appSecret keychain key are out of sync").
+				WithHint("%s", err.Error()).
+				WithCause(err)
+		}
+		var resolveErr error
+		secret, resolveErr = ResolveSecretInput(app.AppSecret, kc)
+		if resolveErr != nil {
+			if errs.IsTyped(resolveErr) {
+				return nil, resolveErr
+			}
+			subtype := errs.SubtypeNotConfigured
+			if isMalformedConfigError(resolveErr) {
+				subtype = errs.SubtypeInvalidConfig
+			}
+			return nil, errs.NewConfigError(subtype, "%s", resolveErr.Error()).WithCause(resolveErr)
 		}
-		return nil, errs.NewConfigError(subtype, "%s", err.Error()).WithCause(err)
 	}
+
 	cfg := &CliConfig{
 		ProfileName: app.ProfileName(),
 		AppID:       app.AppId,
 		AppSecret:   secret,
-		Brand:       app.Brand,
+		Brand:       ParseBrand(string(app.Brand)),
 		Lang:        app.Lang,
+		AuthMethod:  app.AuthMethod,
 		DefaultAs:   app.DefaultAs,
 	}
+	if app.KeyRef != nil {
+		cfg.KeyLabel = app.KeyRef.ID
+		cfg.KeyProvider = strings.TrimSpace(app.KeyRef.Provider)
+	}
 	if len(app.Users) > 0 {
 		cfg.UserOpenId = app.Users[0].UserOpenId
 		cfg.UserName = app.Users[0].UserName

internal/core/config_test.go

@@ -86,6 +86,35 @@ func TestMultiAppConfig_RoundTrip(t *testing.T) {
 	}
 }
 
+func TestResolveConfigFromMulti_KeyProviderRouting(t *testing.T) {
+	base := AppConfig{
+		AppId: "cli_pk", Brand: BrandFeishu, AuthMethod: AuthMethodPrivateKeyJWT,
+		KeyRef: &SecretRef{Source: SecretSourceTEE, ID: "key-1"}, Users: []AppUser{},
+	}
+
+	for _, provider := range []string{"", KeylessProviderLarkSuite} {
+		app := base
+		ref := *base.KeyRef
+		ref.Provider = provider
+		app.KeyRef = &ref
+		cfg, err := ResolveConfigFromMulti(&MultiAppConfig{Apps: []AppConfig{app}}, stubKeychain{}, "")
+		if err != nil {
+			t.Fatalf("provider %q: %v", provider, err)
+		}
+		if cfg.KeyProvider != provider {
+			t.Fatalf("KeyProvider = %q, want %q", cfg.KeyProvider, provider)
+		}
+	}
+
+	app := base
+	ref := *base.KeyRef
+	ref.Provider = "unknown.provider"
+	app.KeyRef = &ref
+	if _, err := ResolveConfigFromMulti(&MultiAppConfig{Apps: []AppConfig{app}}, stubKeychain{}, ""); err == nil {
+		t.Fatal("unknown provider must fail closed")
+	}
+}
+
 func TestResolveConfigFromMulti_RejectsSecretKeyMismatch(t *testing.T) {
 	raw := &MultiAppConfig{
 		Apps: []AppConfig{
@@ -133,6 +162,108 @@ func TestResolveConfigFromMulti_AcceptsPlainSecret(t *testing.T) {
 	}
 }
 
+// TestResolveConfigFromMulti_RejectsUnknownAuthMethod ensures an unsupported
+// authMethod fails at resolution rather than silently degrading to client_secret.
+func TestResolveConfigFromMulti_RejectsUnknownAuthMethod(t *testing.T) {
+	raw := &MultiAppConfig{
+		Apps: []AppConfig{
+			{
+				AppId:      "cli_abc",
+				AppSecret:  PlainSecret("my-secret"),
+				Brand:      BrandFeishu,
+				AuthMethod: "bogus_method",
+			},
+		},
+	}
+
+	_, err := ResolveConfigFromMulti(raw, nil, "")
+	if err == nil {
+		t.Fatal("expected error for unknown authMethod")
+	}
+	var cfgErr *errs.ConfigError
+	if !errors.As(err, &cfgErr) {
+		t.Fatalf("expected ConfigError, got %T: %v", err, err)
+	}
+}
+
+// TestResolveConfigFromMulti_PrivateKeyJWTRequiresKeyRef ensures private_key_jwt
+// without a key handle fails at resolution rather than later at token-signing.
+func TestResolveConfigFromMulti_PrivateKeyJWTRequiresKeyRef(t *testing.T) {
+	raw := &MultiAppConfig{
+		Apps: []AppConfig{
+			{
+				AppId:      "cli_abc",
+				AppSecret:  SecretInput{}, // private_key_jwt carries no app secret
+				Brand:      BrandFeishu,
+				AuthMethod: AuthMethodPrivateKeyJWT,
+				// KeyRef intentionally nil
+			},
+		},
+	}
+
+	_, err := ResolveConfigFromMulti(raw, nil, "")
+	if err == nil {
+		t.Fatal("expected error for private_key_jwt without keyRef")
+	}
+	var cfgErr *errs.ConfigError
+	if !errors.As(err, &cfgErr) {
+		t.Fatalf("expected ConfigError, got %T: %v", err, err)
+	}
+
+	// Control: same config WITH a keyRef resolves cleanly and sets KeyLabel.
+	raw.Apps[0].KeyRef = &SecretRef{Source: "tee", ID: "larksuite-cli-agent"}
+	cfg, err := ResolveConfigFromMulti(raw, nil, "")
+	if err != nil {
+		t.Fatalf("unexpected error with keyRef present: %v", err)
+	}
+	if cfg.KeyLabel != "larksuite-cli-agent" {
+		t.Errorf("KeyLabel = %q, want larksuite-cli-agent", cfg.KeyLabel)
+	}
+}
+
+// TestResolveConfigFromMulti_PKJWTSkipsSecretResolution ensures a private_key_jwt
+// profile that carries a stale/broken AppSecret ref still resolves cleanly: the
+// auth method is judged before any secret handling, so the stale ref is ignored
+// instead of producing a confusing secret-resolution failure.
+func TestResolveConfigFromMulti_PKJWTSkipsSecretResolution(t *testing.T) {
+	raw := &MultiAppConfig{
+		Apps: []AppConfig{{
+			AppId: "cli_pk",
+			// Stale keychain ref whose ID does not match appId — would trip
+			// ValidateSecretKeyMatch / ResolveSecretInput if it were reached.
+			AppSecret:  SecretInput{Ref: &SecretRef{Source: "keychain", ID: "appsecret:cli_OTHER"}},
+			Brand:      BrandFeishu,
+			AuthMethod: AuthMethodPrivateKeyJWT,
+			KeyRef:     &SecretRef{Source: "tee", ID: "agent-key"},
+			Users:      []AppUser{},
+		}},
+	}
+	cfg, err := ResolveConfigFromMulti(raw, stubKeychain{}, "")
+	if err != nil {
+		t.Fatalf("pkjwt with stale secret ref must skip secret resolution, got %v", err)
+	}
+	if cfg.AuthMethod != AuthMethodPrivateKeyJWT || cfg.KeyLabel != "agent-key" {
+		t.Errorf("got authMethod=%q keyLabel=%q", cfg.AuthMethod, cfg.KeyLabel)
+	}
+}
+
+// TestResolveConfigFromMulti_PKJWTRejectsBadKeyRef ensures the stricter keyRef
+// check (Source=="tee" && ID!="") rejects malformed handles.
+func TestResolveConfigFromMulti_PKJWTRejectsBadKeyRef(t *testing.T) {
+	for i, ref := range []*SecretRef{
+		{Source: "keychain", ID: "x"}, // wrong source
+		{Source: "tee", ID: ""},       // empty id
+	} {
+		raw := &MultiAppConfig{Apps: []AppConfig{{
+			AppId: "cli_pk", Brand: BrandFeishu,
+			AuthMethod: AuthMethodPrivateKeyJWT, KeyRef: ref, Users: []AppUser{},
+		}}}
+		if _, err := ResolveConfigFromMulti(raw, stubKeychain{}, ""); err == nil {
+			t.Errorf("case %d: expected ConfigError for bad keyRef", i)
+		}
+	}
+}
+
 func TestResolveConfigFromMulti_CarriesLang(t *testing.T) {
 	raw := &MultiAppConfig{
 		Apps: []AppConfig{
@@ -230,3 +361,20 @@ func TestCliConfig_CanBot(t *testing.T) {
 		})
 	}
 }
+
+// Runtime configs must never carry raw brand casing: the config ingress
+// normalizes it, so downstream equality checks see canonical values.
+func TestResolveConfigFromMulti_NormalizesBrand(t *testing.T) {
+	multi := &MultiAppConfig{Apps: []AppConfig{{
+		AppId:     "cli_x",
+		AppSecret: PlainSecret("test-secret"),
+		Brand:     LarkBrand(" LARK "),
+	}}}
+	cfg, err := ResolveConfigFromMulti(multi, nil, "")
+	if err != nil {
+		t.Fatalf("ResolveConfigFromMulti error = %v", err)
+	}
+	if cfg.Brand != BrandLark {
+		t.Errorf("Brand = %q, want %q (normalized at ingress)", cfg.Brand, BrandLark)
+	}
+}

internal/core/secret.go

@@ -19,6 +19,12 @@ type SecretRef struct {
 	ID       string `json:"id"`                 // env var name / file path / command / keychain key
 }
 
+// KeylessProviderLarkSuite is the only external private_key_jwt signer route.
+// An absent or empty provider always means the CLI's built-in signer.
+const KeylessProviderLarkSuite = "larksuite.keyless"
+
+const SecretSourceTEE = "tee"
+
 // ---------------------------------------------------------------------------
 // SecretInput — union type: plain string or SecretRef
 // ---------------------------------------------------------------------------

internal/core/types.go

@@ -3,9 +3,11 @@
 
 package core
 
+import "strings"
+
 // LarkBrand represents the Lark platform brand.
 // "feishu" targets China-mainland, "lark" targets international.
-// Any other string is treated as a custom base URL.
+// ParseBrand and ResolveEndpoints map unrecognized values to BrandFeishu.
 type LarkBrand string
 
 const (
@@ -13,10 +15,10 @@ const (
 	BrandLark   LarkBrand = "lark"
 )
 
-// ParseBrand normalizes a brand string to a LarkBrand constant.
-// Unrecognized values default to BrandFeishu.
+// ParseBrand normalizes a brand string (case-insensitive, whitespace-tolerant);
+// anything other than "lark" normalizes to BrandFeishu.
 func ParseBrand(value string) LarkBrand {
-	if value == "lark" {
+	if strings.ToLower(strings.TrimSpace(value)) == "lark" {
 		return BrandLark
 	}
 	return BrandFeishu
@@ -36,9 +38,10 @@ type Endpoints struct {
 	AppLink  string // e.g. "https://applink.feishu.cn"
 }
 
-// ResolveEndpoints resolves endpoint URLs based on brand.
+// ResolveEndpoints resolves endpoint URLs for the brand, normalizing its
+// input so stored values with unusual casing still resolve correctly.
 func ResolveEndpoints(brand LarkBrand) Endpoints {
-	switch brand {
+	switch ParseBrand(string(brand)) {
 	case BrandLark:
 		return Endpoints{
 			Open:     "https://open.larksuite.com",
@@ -60,3 +63,10 @@ func ResolveEndpoints(brand LarkBrand) Endpoints {
 func ResolveOpenBaseURL(brand LarkBrand) string {
 	return ResolveEndpoints(brand).Open
 }
+
+// OpenAPIAudience returns the client_assertion `aud` value for the brand: the
+// bare Open API host per the App Authentication JWT spec — "open.feishu.cn" or
+// "open.larksuite.com" — not the full token endpoint URL.
+func OpenAPIAudience(brand LarkBrand) string {
+	return strings.TrimPrefix(ResolveOpenBaseURL(brand), "https://")
+}

internal/core/types_test.go

@@ -57,3 +57,46 @@ func TestResolveOpenBaseURL(t *testing.T) {
 		t.Errorf("ResolveOpenBaseURL(lark) = %q", got)
 	}
 }
+
+func TestParseBrand(t *testing.T) {
+	cases := []struct {
+		in   string
+		want LarkBrand
+	}{
+		{"", BrandFeishu},
+		{"feishu", BrandFeishu},
+		{"lark", BrandLark},
+		{"LARK", BrandLark},
+		{" lark ", BrandLark},
+		{"Lark", BrandLark},
+		{"xyz", BrandFeishu},
+	}
+	for _, c := range cases {
+		if got := ParseBrand(c.in); got != c.want {
+			t.Errorf("ParseBrand(%q) = %q, want %q", c.in, got, c.want)
+		}
+	}
+}
+
+// TestResolveEndpoints_NormalizesBrand locks the boundary invariant: the
+// resolver normalizes its brand input, so historical config values with
+// unusual casing or whitespace still resolve to their intended endpoints.
+func TestResolveEndpoints_NormalizesBrand(t *testing.T) {
+	for _, raw := range []string{"LARK", " lark ", "Lark"} {
+		if got := ResolveEndpoints(LarkBrand(raw)).Open; got != "https://open.larksuite.com" {
+			t.Errorf("ResolveEndpoints(%q).Open = %q, want the lark endpoint", raw, got)
+		}
+	}
+	if got := ResolveEndpoints(LarkBrand("unexpected")).Open; got != "https://open.feishu.cn" {
+		t.Errorf("ResolveEndpoints(unexpected).Open = %q, want the feishu default", got)
+	}
+}
+
+func TestOpenAPIAudience(t *testing.T) {
+	if got := OpenAPIAudience(BrandFeishu); got != "open.feishu.cn" {
+		t.Errorf("OpenAPIAudience(feishu) = %q, want open.feishu.cn", got)
+	}
+	if got := OpenAPIAudience(BrandLark); got != "open.larksuite.com" {
+		t.Errorf("OpenAPIAudience(lark) = %q, want open.larksuite.com", got)
+	}
+}

internal/credential/default_provider.go

@@ -17,6 +17,7 @@ import (
 	"github.com/larksuite/cli/internal/keychain"
 
 	extcred "github.com/larksuite/cli/extension/credential"
+	"github.com/larksuite/cli/internal/keysigner"
 )
 
 // classifyTATResponseCode wraps a deterministic (non-transient) failure from the
@@ -175,6 +176,18 @@ func (p *DefaultTokenProvider) doResolveTAT(ctx context.Context) (*TokenResult,
 	if err != nil {
 		return nil, err
 	}
+
+	// private_key_jwt apps have no app secret: mint via the jwt-bearer grant
+	// using a TEE-signed client_assertion instead.
+	if acct.AuthMethod == core.AuthMethodPrivateKeyJWT {
+		signer := keysigner.Active()
+		token, err := FetchTATWithAssertionForProvider(ctx, httpClient, acct.Brand, acct.AppID, signer, acct.KeyProvider, acct.KeyLabel)
+		if err != nil {
+			return nil, err
+		}
+		return &TokenResult{Token: token}, nil
+	}
+
 	token, err := FetchTAT(ctx, httpClient, acct.Brand, acct.AppID, acct.AppSecret)
 	if err != nil {
 		return nil, err

internal/credential/tat_fetch.go

@@ -12,7 +12,12 @@ import (
 	"net/url"
 	"strings"
 
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/auth"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keylesshelper"
+	"github.com/larksuite/cli/internal/keylessprovider"
+	"github.com/larksuite/cli/internal/keysigner"
 )
 
 // FetchTAT performs a single HTTP POST to mint a tenant access token via the
@@ -100,3 +105,120 @@ func FetchTAT(ctx context.Context, httpClient *http.Client, brand core.LarkBrand
 	}
 	return "", classifyTATResponseCode(result.Code, result.Error, desc, string(brand), appID)
 }
+
+// FetchTATWithAssertion mints a tenant access token for a private_key_jwt app via
+// the RFC 7523 jwt-bearer grant: it signs a short-lived client_assertion with the
+// TEE-held key and posts it to the unified OAuth token endpoint, replacing the
+// app_secret entirely.
+//
+// The unified v2 token endpoint returns the minted token as access_token
+// (tenant_access_token is accepted as a fallback).
+func FetchTATWithAssertion(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, clientID string, signer keysigner.Signer, keyLabel string) (string, error) {
+	return FetchTATWithAssertionForProvider(ctx, httpClient, brand, clientID, signer, "", keyLabel)
+}
+
+// FetchTATWithAssertionForProvider routes one app authentication by its
+// persisted keyRef.provider. Empty is the stable built-in signer route;
+// larksuite.keyless is resolved afresh for this operation; all other values
+// fail closed in keylessprovider.Resolve.
+func FetchTATWithAssertionForProvider(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, clientID string, signer keysigner.Signer, provider, keyLabel string) (string, error) {
+	var helper *keylesshelper.Command
+	var err error
+	if strings.TrimSpace(provider) != "" {
+		helper, err = keylessprovider.Resolve(ctx, provider)
+		if err != nil {
+			return "", err
+		}
+	}
+	return FetchTATWithAssertionWithHelper(ctx, httpClient, brand, clientID, signer, helper, keyLabel)
+}
+
+// FetchTATWithAssertionWithHelper is the single-resolution variant used when
+// the caller must make a preflight decision from the same helper snapshot.
+func FetchTATWithAssertionWithHelper(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, clientID string, signer keysigner.Signer, helper *keylesshelper.Command, keyLabel string) (string, error) {
+	if signer == nil && helper == nil {
+		return "", errs.NewConfigError(errs.SubtypeInvalidClient,
+			"profile uses private_key_jwt but no TEE key signer is available on this build").
+			WithHint("install a build with the platform key-signer extension, configure an external keyless signer, or reconfigure the app to use an app secret")
+	}
+	ep := core.ResolveEndpoints(brand)
+	endpoint := ep.Open + auth.PathOAuthTokenV2
+
+	assertionType, assertion, err := auth.SignClientAssertion(ctx, signer, helper, keyLabel, clientID, core.OpenAPIAudience(brand))
+	if err != nil {
+		return "", err
+	}
+
+	form := url.Values{}
+	form.Set("grant_type", "urn:ietf:params:oauth:grant-type:jwt-bearer")
+	form.Set("client_id", clientID)
+	form.Set("client_assertion_type", assertionType)
+	form.Set("client_assertion", assertion)
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodPost, endpoint, strings.NewReader(form.Encode()))
+	if err != nil {
+		return "", err
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return "", err
+	}
+	defer resp.Body.Close()
+
+	body, err := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
+	if err != nil {
+		return "", fmt.Errorf("read token response: %w", err)
+	}
+
+	var result struct {
+		Code              int    `json:"code"`
+		Msg               string `json:"msg"`
+		Error             string `json:"error"`
+		ErrorDescription  string `json:"error_description"`
+		AccessToken       string `json:"access_token"`
+		TenantAccessToken string `json:"tenant_access_token"`
+	}
+	_ = json.Unmarshal(body, &result) // best-effort; error body may not be JSON
+
+	token := result.AccessToken
+	if token == "" {
+		token = result.TenantAccessToken
+	}
+	if resp.StatusCode == http.StatusOK && token != "" && result.Error == "" && result.Code == 0 {
+		return token, nil
+	}
+
+	// Surface the server's reason, preferring the OAuth `error` code (e.g.
+	// unauthorized_client) which is more diagnostic than the description alone.
+	detail := result.ErrorDescription
+	if detail == "" {
+		detail = result.Msg
+	}
+	if detail == "" {
+		detail = strings.TrimSpace(string(body))
+	}
+	if result.Error != "" {
+		return "", classifyAssertionError(result.Error, resp.StatusCode, detail)
+	}
+	return "", fmt.Errorf("token endpoint HTTP %d (code=%d): %s", resp.StatusCode, result.Code, detail)
+}
+
+// classifyAssertionError maps the OAuth token endpoint's `error` field to a
+// typed or untyped error. Only deterministic client-credential rejections get a
+// typed errs.ConfigError (so runProbePKJWT can tell "this key is not bound to
+// this app" apart from upstream noise); every other error (e.g.
+// temporarily_unavailable) stays untyped and is swallowed by the probe. detail
+// carries only the server's error_description / msg / body text — it never
+// echoes the client_assertion or private key (the assertion lives only in the
+// request form).
+func classifyAssertionError(oauthError string, httpStatus int, detail string) error {
+	switch oauthError {
+	case "invalid_client", "unauthorized_client", "invalid_grant":
+		return errs.NewConfigError(errs.SubtypeInvalidClient,
+			"token endpoint rejected the key (%s): %s", oauthError, detail)
+	default:
+		return fmt.Errorf("token endpoint HTTP %d (%s): %s", httpStatus, oauthError, detail)
+	}
+}

internal/credential/tat_fetch_test.go

@@ -5,15 +5,22 @@ package credential
 
 import (
 	"context"
+	"crypto"
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
+	"crypto/sha256"
 	"errors"
 	"io"
 	"net/http"
 	"net/http/httptest"
+	"net/url"
 	"strings"
 	"testing"
 
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/keysigner"
 )
 
 // stubRoundTripper lets us assert request shape and return canned responses.
@@ -307,3 +314,141 @@ func (r *urlRewriteRT) RoundTrip(req *http.Request) (*http.Response, error) {
 	req2.Header = req.Header
 	return http.DefaultTransport.RoundTrip(req2)
 }
+
+// fakeTATSigner is a real in-memory ECDSA P-256 signer for assertion tests.
+type fakeTATSigner struct{ key *ecdsa.PrivateKey }
+
+func newFakeTATSigner(t *testing.T) *fakeTATSigner {
+	t.Helper()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	k, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+	if err != nil {
+		t.Fatal(err)
+	}
+	return &fakeTATSigner{key: k}
+}
+
+func (f *fakeTATSigner) EnsureKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return f.key.Public(), nil
+}
+func (f *fakeTATSigner) PublicKey(context.Context, keysigner.KeyRef) (crypto.PublicKey, error) {
+	return f.key.Public(), nil
+}
+func (f *fakeTATSigner) Sign(_ context.Context, _ keysigner.KeyRef, in []byte) ([]byte, string, error) {
+	h := sha256.Sum256(in)
+	r, s, err := ecdsa.Sign(rand.Reader, f.key, h[:])
+	if err != nil {
+		return nil, "", err
+	}
+	sig := make([]byte, 64)
+	r.FillBytes(sig[:32])
+	s.FillBytes(sig[32:])
+	return sig, keysigner.AlgES256, nil
+}
+
+func TestFetchTATWithAssertion_Success(t *testing.T) {
+	rt := &stubRoundTripper{respCode: 200, respBody: `{"access_token":"test-token","token_type":"Bearer","expires_in":7200}`}
+	hc := &http.Client{Transport: rt}
+
+	token, err := FetchTATWithAssertion(context.Background(), hc, core.BrandFeishu, "cli_app", newFakeTATSigner(t), "agent-key")
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if token != "test-token" {
+		t.Errorf("token = %q, want test-token", token)
+	}
+	if rt.gotReq.URL.String() != "https://open.feishu.cn/open-apis/authen/v2/oauth/token" {
+		t.Errorf("url = %s", rt.gotReq.URL.String())
+	}
+
+	form, err := url.ParseQuery(rt.gotBody)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if form.Get("grant_type") != "urn:ietf:params:oauth:grant-type:jwt-bearer" {
+		t.Errorf("grant_type = %q", form.Get("grant_type"))
+	}
+	if form.Get("client_assertion_type") != "urn:ietf:params:oauth:client-assertion-type:jwt-bearer" {
+		t.Errorf("client_assertion_type = %q", form.Get("client_assertion_type"))
+	}
+	if form.Get("client_assertion") == "" {
+		t.Error("client_assertion is empty")
+	}
+	if form.Has("client_secret") {
+		t.Error("client_secret must NOT be sent for private_key_jwt")
+	}
+	if form.Get("client_id") != "cli_app" {
+		t.Errorf("client_id = %q", form.Get("client_id"))
+	}
+}
+
+func TestFetchTATWithAssertion_NilSigner(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	hc := &http.Client{Transport: &stubRoundTripper{respCode: 200, respBody: `{}`}}
+	if _, err := FetchTATWithAssertion(context.Background(), hc, core.BrandFeishu, "cli_app", nil, "k"); err == nil {
+		t.Fatal("expected error when signer is nil")
+	}
+}
+
+func TestFetchTATWithAssertion_ServerError(t *testing.T) {
+	rt := &stubRoundTripper{respCode: 200, respBody: `{"error":"invalid_client","error_description":"unknown key"}`}
+	hc := &http.Client{Transport: rt}
+	if _, err := FetchTATWithAssertion(context.Background(), hc, core.BrandFeishu, "cli_app", newFakeTATSigner(t), "k"); err == nil {
+		t.Fatal("expected error for invalid_client response")
+	}
+}
+
+func TestFetchTATWithAssertion_LimitsErrorBody(t *testing.T) {
+	rt := &stubRoundTripper{respCode: 502, respBody: strings.Repeat("x", 2<<20)}
+	hc := &http.Client{Transport: rt}
+
+	_, err := FetchTATWithAssertion(context.Background(), hc, core.BrandFeishu, "cli_app", newFakeTATSigner(t), "k")
+	if err == nil {
+		t.Fatal("expected error")
+	}
+	if len(err.Error()) > (1<<20)+512 {
+		t.Fatalf("error length = %d, want bounded", len(err.Error()))
+	}
+}
+
+// Deterministic OAuth client rejections must be typed (ConfigError /
+// SubtypeInvalidClient) so runProbePKJWT can tell "the key is not bound to this
+// app" apart from transport noise.
+func TestFetchTATWithAssertion_DeterministicReject_Typed(t *testing.T) {
+	for _, oauthErr := range []string{"invalid_client", "unauthorized_client", "invalid_grant"} {
+		rt := &stubRoundTripper{respCode: 401, respBody: `{"error":"` + oauthErr + `","error_description":"bad key"}`}
+		hc := &http.Client{Transport: rt}
+		_, err := FetchTATWithAssertion(context.Background(), hc, core.BrandFeishu, "cli_app", newFakeTATSigner(t), "k")
+		if err == nil {
+			t.Fatalf("%s: expected error", oauthErr)
+		}
+		if !errs.IsTyped(err) {
+			t.Errorf("%s: must be typed, got %T", oauthErr, err)
+		}
+		var cfgErr *errs.ConfigError
+		if !errors.As(err, &cfgErr) || cfgErr.Subtype != errs.SubtypeInvalidClient {
+			t.Errorf("%s: want ConfigError/InvalidClient, got %T %v", oauthErr, err, err)
+		}
+	}
+}
+
+// Unrecognized OAuth errors and non-payload noise stay UNTYPED so the probe
+// treats them as upstream noise and stays silent.
+func TestFetchTATWithAssertion_AmbiguousError_Untyped(t *testing.T) {
+	cases := []string{
+		`{"error":"temporarily_unavailable","error_description":"retry"}`,
+		`{"code":99999,"msg":"weird"}`,
+		`not json`,
+	}
+	for _, body := range cases {
+		rt := &stubRoundTripper{respCode: 503, respBody: body}
+		hc := &http.Client{Transport: rt}
+		_, err := FetchTATWithAssertion(context.Background(), hc, core.BrandFeishu, "cli_app", newFakeTATSigner(t), "k")
+		if err == nil {
+			t.Fatalf("body %q: expected error", body)
+		}
+		if errs.IsTyped(err) {
+			t.Errorf("body %q: must be UNTYPED, got typed %T", body, err)
+		}
+	}
+}

internal/credential/types.go

@@ -26,6 +26,9 @@ type Account struct {
 	UserName            string
 	Lang                i18n.Lang
 	SupportedIdentities uint8
+	AuthMethod          string // "" == client_secret; core.AuthMethodPrivateKeyJWT
+	KeyLabel            string // resolved TEE key handle for private_key_jwt
+	KeyProvider         string // empty == built-in signer; explicit external provider otherwise
 }
 
 const runtimePlaceholderAppSecret = "__LARKSUITE_CLI_TOKEN_ONLY__"
@@ -69,10 +72,14 @@ func AccountFromCliConfig(cfg *core.CliConfig) *Account {
 		UserName:            cfg.UserName,
 		Lang:                cfg.Lang,
 		SupportedIdentities: cfg.SupportedIdentities,
+		AuthMethod:          cfg.AuthMethod,
+		KeyLabel:            cfg.KeyLabel,
+		KeyProvider:         cfg.KeyProvider,
 	}
 }
 
-// ToCliConfig copies the credential-layer account into the downstream config shape.
+// ToCliConfig copies the credential-layer account into the downstream config
+// shape, normalizing the brand so runtime consumers never see raw casing.
 func (a *Account) ToCliConfig() *core.CliConfig {
 	if a == nil {
 		return nil
@@ -81,12 +88,15 @@ func (a *Account) ToCliConfig() *core.CliConfig {
 		ProfileName:         a.ProfileName,
 		AppID:               a.AppID,
 		AppSecret:           normalizeAccountAppSecret(a.AppSecret),
-		Brand:               a.Brand,
+		Brand:               core.ParseBrand(string(a.Brand)),
 		DefaultAs:           a.DefaultAs,
 		UserOpenId:          a.UserOpenId,
 		UserName:            a.UserName,
 		Lang:                a.Lang,
 		SupportedIdentities: a.SupportedIdentities,
+		AuthMethod:          a.AuthMethod,
+		KeyLabel:            a.KeyLabel,
+		KeyProvider:         a.KeyProvider,
 	}
 }
 

internal/credential/types_test.go

@@ -56,13 +56,16 @@ func TestAccountFromCliConfigAndBack_ReturnCopies(t *testing.T) {
 		UserName:            "alice",
 		Lang:                i18n.LangJaJP,
 		SupportedIdentities: 3,
+		AuthMethod:          core.AuthMethodPrivateKeyJWT,
+		KeyLabel:            "openclaw-lark",
+		KeyProvider:         core.KeylessProviderLarkSuite,
 	}
 
 	acct := AccountFromCliConfig(cfg)
 	if acct == nil {
 		t.Fatal("AccountFromCliConfig() = nil")
 	}
-	if acct.AppID != cfg.AppID || acct.ProfileName != cfg.ProfileName || acct.UserName != cfg.UserName {
+	if acct.AppID != cfg.AppID || acct.ProfileName != cfg.ProfileName || acct.UserName != cfg.UserName || acct.KeyProvider != cfg.KeyProvider {
 		t.Fatalf("AccountFromCliConfig() = %#v, want copied fields from %#v", acct, cfg)
 	}
 	if acct.Lang != cfg.Lang {
@@ -73,7 +76,7 @@ func TestAccountFromCliConfigAndBack_ReturnCopies(t *testing.T) {
 	if roundtrip == nil {
 		t.Fatal("ToCliConfig() = nil")
 	}
-	if roundtrip.AppID != cfg.AppID || roundtrip.ProfileName != cfg.ProfileName || roundtrip.UserName != cfg.UserName {
+	if roundtrip.AppID != cfg.AppID || roundtrip.ProfileName != cfg.ProfileName || roundtrip.UserName != cfg.UserName || roundtrip.KeyProvider != cfg.KeyProvider {
 		t.Fatalf("ToCliConfig() = %#v, want copied fields from %#v", roundtrip, cfg)
 	}
 	if roundtrip.Lang != cfg.Lang {
@@ -130,3 +133,11 @@ func TestRuntimeAppSecret_TokenOnlyUsesPlaceholder(t *testing.T) {
 		t.Fatalf("RuntimeAppSecret(real) = %q, want %q", got, "secret-1")
 	}
 }
+
+// The credential-layer ingress normalizes brand casing for all runtime consumers.
+func TestToCliConfig_NormalizesBrand(t *testing.T) {
+	acct := &Account{AppID: "cli_x", Brand: " LARK "}
+	if got := acct.ToCliConfig().Brand; got != core.BrandLark {
+		t.Errorf("Brand = %q, want %q", got, core.BrandLark)
+	}
+}

internal/errclass/classify_test.go

@@ -113,6 +113,7 @@ func TestBuildAPIError_ExitCodeMatrix(t *testing.T) {
 		{"230027 user_not_authorized", 230027, errs.CategoryAuthorization, errs.SubtypeUserUnauthorized, 3, "PermissionError"},
 		{"1470403 task_permission_denied", 1470403, errs.CategoryAuthorization, errs.SubtypePermissionDenied, 3, "PermissionError"},
 		{"1470400 task_invalid_params", 1470400, errs.CategoryAPI, errs.SubtypeInvalidParameters, 1, "APIError"},
+		{"1062507 drive_parent_sibling_limit", 1062507, errs.CategoryAPI, errs.SubtypeQuotaExceeded, 1, "APIError"},
 		{"99991400 rate_limit", 99991400, errs.CategoryAPI, errs.SubtypeRateLimit, 1, "APIError"},
 		{"99991661 token_missing", 99991661, errs.CategoryAuthentication, errs.SubtypeTokenMissing, 3, "AuthenticationError"},
 		{"21000 challenge_required", 21000, errs.CategoryPolicy, errs.Subtype("challenge_required"), 6, "SecurityPolicyError"},

internal/errclass/codemeta_drive.go

@@ -17,6 +17,7 @@ var driveCodeMeta = map[int]CodeMeta{
 	1061043:   {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},                // file size beyond limit
 	1061044:   {Category: errs.CategoryAPI, Subtype: errs.SubtypeNotFound},                     // parent folder does not exist (upload)
 	1061101:   {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},                // file quota exceeded
+	1062507:   {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},                // parent folder child count limit exceeded
 	1062009:   {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},            // actual size inconsistent with declared size
 	1063001:   {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},            // secure label invalid parameter
 	1063002:   {Category: errs.CategoryAuthorization, Subtype: errs.SubtypePermissionDenied},   // secure label permission denied

internal/errclass/codemeta_spark.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errclass
+
+import "github.com/larksuite/cli/errs"
+
+// sparkCodeMeta holds stable Spark app-role business-code classifications.
+// Command-specific recovery guidance belongs in the Apps shortcut layer; the
+// numeric code remains the source-specific discriminator on the error envelope.
+var sparkCodeMeta = map[int]CodeMeta{
+	3340001: {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},          // request parameters are invalid
+	3344027: {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},              // role user count exceeds the service limit
+	3344028: {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},              // role department count exceeds the service limit
+	3344029: {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},              // role chat count exceeds the service limit
+	3344030: {Category: errs.CategoryAuthorization, Subtype: errs.SubtypePermissionDenied}, // app administrator required
+	3344031: {Category: errs.CategoryAuthorization, Subtype: errs.SubtypePermissionDenied}, // app administrator or developer required
+	3344034: {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},          // invalid role ID
+	3344035: {Category: errs.CategoryAPI, Subtype: errs.SubtypeNotFound},                   // role does not exist
+	3344036: {Category: errs.CategoryAPI, Subtype: errs.SubtypeAlreadyExists},              // role ID already exists
+	3344037: {Category: errs.CategoryAPI, Subtype: errs.SubtypeQuotaExceeded},              // app role count exceeds the service limit
+	3344038: {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},          // invalid role name
+	3344039: {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},          // invalid role description
+	3344040: {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},          // unsupported member type
+	3344041: {Category: errs.CategoryAPI, Subtype: errs.SubtypeInvalidParameters},          // invalid member ID
+}
+
+func init() { mergeCodeMeta(sparkCodeMeta, "spark") }

internal/errclass/codemeta_spark_test.go

@@ -0,0 +1,59 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package errclass
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+)
+
+func TestLookupCodeMetaSparkRoleCodes(t *testing.T) {
+	tests := []struct {
+		code     int
+		category errs.Category
+		subtype  errs.Subtype
+	}{
+		{3340001, errs.CategoryAPI, errs.SubtypeInvalidParameters},
+		{3344027, errs.CategoryAPI, errs.SubtypeQuotaExceeded},
+		{3344028, errs.CategoryAPI, errs.SubtypeQuotaExceeded},
+		{3344029, errs.CategoryAPI, errs.SubtypeQuotaExceeded},
+		{3344030, errs.CategoryAuthorization, errs.SubtypePermissionDenied},
+		{3344031, errs.CategoryAuthorization, errs.SubtypePermissionDenied},
+		{3344034, errs.CategoryAPI, errs.SubtypeInvalidParameters},
+		{3344035, errs.CategoryAPI, errs.SubtypeNotFound},
+		{3344036, errs.CategoryAPI, errs.SubtypeAlreadyExists},
+		{3344037, errs.CategoryAPI, errs.SubtypeQuotaExceeded},
+		{3344038, errs.CategoryAPI, errs.SubtypeInvalidParameters},
+		{3344039, errs.CategoryAPI, errs.SubtypeInvalidParameters},
+		{3344040, errs.CategoryAPI, errs.SubtypeInvalidParameters},
+		{3344041, errs.CategoryAPI, errs.SubtypeInvalidParameters},
+	}
+
+	for _, tt := range tests {
+		t.Run(fmt.Sprintf("%d", tt.code), func(t *testing.T) {
+			meta, ok := LookupCodeMeta(tt.code)
+			if !ok {
+				t.Fatalf("code %d is not registered", tt.code)
+			}
+			if meta.Category != tt.category || meta.Subtype != tt.subtype || meta.Retryable {
+				t.Fatalf("code %d metadata = %+v, want category=%s subtype=%s retryable=false", tt.code, meta, tt.category, tt.subtype)
+			}
+
+			err := BuildAPIError(map[string]any{
+				"code":   tt.code,
+				"msg":    "spark role error",
+				"log_id": "log-spark-role",
+			}, ClassifyContext{Identity: "user"})
+			problem, ok := errs.ProblemOf(err)
+			if !ok {
+				t.Fatalf("BuildAPIError(%d) = %#v, want typed problem", tt.code, err)
+			}
+			if problem.Category != tt.category || problem.Subtype != tt.subtype || problem.Code != tt.code || problem.LogID != "log-spark-role" || problem.Retryable {
+				t.Fatalf("BuildAPIError(%d) problem = %+v", tt.code, problem)
+			}
+		})
+	}
+}

internal/event/testmain_test.go

@@ -0,0 +1,23 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package event
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	root, err := os.MkdirTemp("", "lark-cli-event-test-*")
+	if err != nil {
+		panic(err)
+	}
+	if err := os.Setenv("LARKSUITE_CLI_CONFIG_DIR", filepath.Join(root, "config")); err != nil {
+		panic(err)
+	}
+	code := m.Run()
+	_ = os.RemoveAll(root)
+	os.Exit(code)
+}

internal/identitydiag/diagnostics.go

@@ -202,7 +202,9 @@ func diagnoseBot(ctx context.Context, f *cmdutil.Factory, cfg *core.CliConfig, v
 			Hint:    "check strict mode or the active credential provider",
 		}
 	}
-	if cfg.SupportedIdentities == 0 && !credential.HasRealAppSecret(cfg.AppSecret) {
+	// private_key_jwt apps have no app secret — the bot/tenant token is minted via
+	// a TEE-signed client_assertion — so absence of a secret is NOT "unconfigured".
+	if cfg.SupportedIdentities == 0 && !credential.HasRealAppSecret(cfg.AppSecret) && cfg.AuthMethod != core.AuthMethodPrivateKeyJWT {
 		return Identity{
 			Status:  StatusNotConfigured,
 			Message: "Bot identity: not configured (missing app secret or bot token)",

internal/keychain/testmain_test.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package keychain
+
+import (
+	"os"
+	"path/filepath"
+	"testing"
+)
+
+func TestMain(m *testing.M) {
+	root, err := os.MkdirTemp("", "lark-cli-keychain-test-*")
+	if err != nil {
+		panic(err)
+	}
+	for key, value := range map[string]string{
+		"LARKSUITE_CLI_DATA_DIR": filepath.Join(root, "data"),
+		"LARKSUITE_CLI_LOG_DIR":  filepath.Join(root, "logs"),
+	} {
+		if err := os.Setenv(key, value); err != nil {
+			panic(err)
+		}
+	}
+	code := m.Run()
+	_ = os.RemoveAll(root)
+	os.Exit(code)
+}

internal/keylesshelper/helper.go

@@ -0,0 +1,287 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package keylesshelper invokes a signer generation that has already been
+// resolved and verified by internal/keylessprovider.
+package keylesshelper
+
+import (
+	"bytes"
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"io"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
+	"github.com/larksuite/cli/internal/keysigner"
+	"github.com/larksuite/cli/internal/vfs"
+)
+
+const (
+	helperOutputLimit      = 1 << 20
+	helperStderrLimit      = 64 << 10
+	helperExecutionTimeout = 10 * time.Second
+)
+
+type request struct {
+	Op       string `json:"op"`
+	KeyRef   string `json:"keyRef,omitempty"`
+	Nonce    string `json:"nonce,omitempty"`
+	ClientID string `json:"clientId,omitempty"`
+	Audience string `json:"aud,omitempty"`
+}
+
+type response struct {
+	OK                  bool           `json:"ok"`
+	Error               *protocolError `json:"error,omitempty"`
+	Attestation         string         `json:"attestation,omitempty"`
+	ClientAssertionType string         `json:"client_assertion_type,omitempty"`
+	ClientAssertion     string         `json:"client_assertion,omitempty"`
+}
+
+type protocolError struct {
+	Type    string `json:"type"`
+	Message string `json:"message"`
+}
+
+// Command is one verified provider executable. It is intentionally impossible
+// to construct from an app-config path, argv, or environment variable.
+type Command struct {
+	argv         []string
+	providerCWD  string
+	providerHome string
+	providerSHA  string
+}
+
+// NewProviderCommand builds the fixed empty-argv command used by a verified
+// provider executable. Provider execution never accepts argv from app config or
+// the environment.
+func NewProviderCommand(binaryPath, providerRoot, signerHome, expectedSHA256 string) (*Command, error) {
+	if strings.TrimSpace(binaryPath) == "" || strings.TrimSpace(providerRoot) == "" {
+		return nil, fmt.Errorf("provider binary path and root must be non-empty")
+	}
+	if len(expectedSHA256) != 64 {
+		return nil, fmt.Errorf("provider binary digest must be a SHA-256 hex string")
+	}
+	return &Command{argv: []string{binaryPath}, providerCWD: providerRoot, providerHome: signerHome, providerSHA: expectedSHA256}, nil
+}
+
+// Probe asks this resolved helper for its public key.
+func (c *Command) Probe(ctx context.Context, keyRef string) error {
+	resp, err := c.execute(ctx, request{
+		Op:     "pubkey",
+		KeyRef: defaultKeyRef(keyRef),
+	})
+	if err != nil {
+		return err
+	}
+	return validateResponse(resp)
+}
+
+// SignAttestation asks this resolved helper to mint a registration attestation JWT.
+func (c *Command) SignAttestation(ctx context.Context, keyRef, nonce string) (string, error) {
+	resp, err := c.execute(ctx, request{
+		Op:     "sign-attestation",
+		KeyRef: defaultKeyRef(keyRef),
+		Nonce:  nonce,
+	})
+	if err != nil {
+		return "", err
+	}
+	if err := validateResponse(resp); err != nil {
+		return "", err
+	}
+	if resp.Attestation == "" {
+		return "", fmt.Errorf("keyless helper returned empty attestation")
+	}
+	return resp.Attestation, nil
+}
+
+// SignClientAssertion asks this resolved helper to mint a token-endpoint client_assertion.
+func (c *Command) SignClientAssertion(ctx context.Context, keyRef, clientID, audience string) (string, string, error) {
+	resp, err := c.execute(ctx, request{
+		Op:       "sign-assertion",
+		KeyRef:   defaultKeyRef(keyRef),
+		ClientID: clientID,
+		Audience: audience,
+	})
+	if err != nil {
+		return "", "", err
+	}
+	if err := validateResponse(resp); err != nil {
+		return "", "", err
+	}
+	if resp.ClientAssertionType == "" {
+		return "", "", fmt.Errorf("keyless helper returned empty client_assertion_type")
+	}
+	if resp.ClientAssertion == "" {
+		return "", "", fmt.Errorf("keyless helper returned empty client_assertion")
+	}
+	return resp.ClientAssertionType, resp.ClientAssertion, nil
+}
+
+func (c *Command) execute(ctx context.Context, req request) (response, error) {
+	if err := verifyProviderBinary(c.argv[0], c.providerSHA); err != nil {
+		return response{}, err
+	}
+	return runCommandConfigured(ctx, c.argv, req, c.providerCWD, providerEnvironment(c.providerHome))
+}
+
+func verifyProviderBinary(path, expectedSHA string) error {
+	info, err := vfs.Lstat(path)
+	if err != nil {
+		return fmt.Errorf("recheck provider signer: %w", err)
+	}
+	if !info.Mode().IsRegular() || info.Mode()&os.ModeSymlink != 0 || info.Size() <= 0 || info.Size() > 512<<20 {
+		return fmt.Errorf("provider signer changed before execution")
+	}
+	f, err := vfs.Open(path)
+	if err != nil {
+		return fmt.Errorf("reopen provider signer: %w", err)
+	}
+	defer f.Close()
+	h := sha256.New()
+	n, err := io.Copy(h, io.LimitReader(f, 512<<20+1))
+	if err != nil || n != info.Size() {
+		return fmt.Errorf("rehash provider signer: file changed while reading")
+	}
+	if hex.EncodeToString(h.Sum(nil)) != expectedSHA {
+		return fmt.Errorf("provider signer digest changed before execution")
+	}
+	return nil
+}
+
+func validateResponse(resp response) error {
+	if resp.Error != nil {
+		return fmt.Errorf("keyless helper %s: %s", resp.Error.Type, resp.Error.Message)
+	}
+	if !resp.OK {
+		return fmt.Errorf("keyless helper returned ok=false")
+	}
+	return nil
+}
+
+func defaultKeyRef(keyRef string) string {
+	if keyRef != "" {
+		return keyRef
+	}
+	return keysigner.DefaultKeyLabel
+}
+
+func runCommand(ctx context.Context, argv []string, req request) (response, error) {
+	return runCommandConfigured(ctx, argv, req, "", nil)
+}
+
+func runCommandConfigured(ctx context.Context, argv []string, req request, cwd string, env []string) (response, error) {
+	body, err := json.Marshal(req)
+	if err != nil {
+		return response{}, fmt.Errorf("marshal keyless helper request: %w", err)
+	}
+	body = append(body, '\n')
+
+	helperCtx, cancel := withExecutionTimeout(ctx)
+	defer cancel()
+
+	// CommandContext's default cancellation kills the helper process. This is
+	// important for unattended agent calls: a signer blocked on platform UI must
+	// not hold the caller indefinitely.
+	cmd := exec.CommandContext(helperCtx, argv[0], argv[1:]...)
+	if cwd != "" {
+		cmd.Dir = cwd
+		cmd.Env = env
+	}
+	cmd.Stdin = bytes.NewReader(body)
+	stdout := &limitedBuffer{limit: helperOutputLimit}
+	stderr := &limitedBuffer{limit: helperStderrLimit}
+	cmd.Stdout = stdout
+	cmd.Stderr = stderr
+
+	runErr := cmd.Run()
+	if err := helperCtx.Err(); err != nil {
+		// Never parse or include helper output on cancellation. A partially written
+		// response may contain a client assertion or other credential material.
+		if errors.Is(err, context.DeadlineExceeded) {
+			return response{}, fmt.Errorf("keyless helper timed out: %w", context.DeadlineExceeded)
+		}
+		return response{}, fmt.Errorf("keyless helper canceled: %w", err)
+	}
+	var resp response
+	if err := json.Unmarshal(stdout.Bytes(), &resp); err != nil {
+		if runErr != nil {
+			return response{}, helperRunError(runErr, stderr.String())
+		}
+		return response{}, fmt.Errorf("keyless helper produced invalid JSON: %w", err)
+	}
+	if runErr != nil && resp.Error == nil {
+		return response{}, helperRunError(runErr, stderr.String())
+	}
+	return resp, nil
+}
+
+func providerEnvironment(homeOverride string) []string {
+	// Signer implementations use OS facilities and must not inherit language
+	// runtime/proxy/library injection variables. HOME/TMPDIR/SystemRoot are the
+	// minimal cross-platform values currently needed by supported backends.
+	keep := map[string]bool{"HOME": true, "TMPDIR": true, "TEMP": true, "TMP": true, "SystemRoot": true, "WINDIR": true}
+	var env []string
+	for _, entry := range os.Environ() {
+		name := entry
+		if idx := strings.IndexByte(entry, '='); idx >= 0 {
+			name = entry[:idx]
+		}
+		if keep[name] && !(name == "HOME" && homeOverride != "") {
+			env = append(env, entry)
+		}
+	}
+	if homeOverride != "" {
+		env = append(env, "HOME="+homeOverride)
+	}
+	return env
+}
+
+func withExecutionTimeout(ctx context.Context) (context.Context, context.CancelFunc) {
+	return context.WithTimeout(ctx, helperExecutionTimeout)
+}
+
+func helperRunError(runErr error, stderr string) error {
+	if errors.Is(runErr, os.ErrNotExist) {
+		return fmt.Errorf("keyless helper executable no longer exists; repair or reinstall the OpenClaw Feishu plugin: %w", runErr)
+	}
+	if strings.TrimSpace(stderr) != "" {
+		return fmt.Errorf("keyless helper failed: %w (stderr omitted)", runErr)
+	}
+	return fmt.Errorf("keyless helper failed: %w", runErr)
+}
+
+type limitedBuffer struct {
+	buf   bytes.Buffer
+	limit int
+}
+
+func (b *limitedBuffer) Write(p []byte) (int, error) {
+	if b.limit <= 0 {
+		return len(p), nil
+	}
+	remaining := b.limit - b.buf.Len()
+	if remaining > 0 {
+		if len(p) < remaining {
+			remaining = len(p)
+		}
+		_, _ = b.buf.Write(p[:remaining])
+	}
+	return len(p), nil
+}
+
+func (b *limitedBuffer) Bytes() []byte {
+	return b.buf.Bytes()
+}
+
+func (b *limitedBuffer) String() string {
+	return b.buf.String()
+}

internal/keylesshelper/helper_test.go

@@ -0,0 +1,91 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package keylesshelper
+
+import (
+	"context"
+	"crypto/sha256"
+	"encoding/hex"
+	"encoding/json"
+	"errors"
+	"io"
+	"os"
+	"path/filepath"
+	"strings"
+	"testing"
+	"time"
+)
+
+const helperProcessMode = "GO_WANT_KEYLESS_PROVIDER_HELPER"
+
+func TestRunCommandProtocol(t *testing.T) {
+	t.Setenv(helperProcessMode, "reply")
+	resp, err := runCommand(context.Background(), []string{os.Args[0], "-test.run=^TestHelperProcess$"}, request{
+		Op: "sign-assertion", KeyRef: "key-1", ClientID: "cli_a", Audience: "aud",
+	})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if !resp.OK || resp.ClientAssertion != "helper.jwt" {
+		t.Fatalf("response = %#v", resp)
+	}
+}
+
+func TestRunCommandTimeoutDoesNotLeakOutput(t *testing.T) {
+	t.Setenv(helperProcessMode, "hang")
+	ctx, cancel := context.WithTimeout(context.Background(), 100*time.Millisecond)
+	defer cancel()
+	_, err := runCommand(ctx, []string{os.Args[0], "-test.run=^TestHelperProcess$"}, request{Op: "pubkey", KeyRef: "key-1"})
+	if !errors.Is(err, context.DeadlineExceeded) || strings.Contains(err.Error(), "secret.jwt") {
+		t.Fatalf("error = %v", err)
+	}
+}
+
+func TestProviderCommandRechecksDigestBeforeSpawn(t *testing.T) {
+	root := t.TempDir()
+	binary := filepath.Join(root, "signer")
+	if err := os.WriteFile(binary, []byte("first"), 0700); err != nil {
+		t.Fatal(err)
+	}
+	digest := sha256.Sum256([]byte("first"))
+	command, err := NewProviderCommand(binary, root, "", hex.EncodeToString(digest[:]))
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(binary, []byte("second"), 0700); err != nil {
+		t.Fatal(err)
+	}
+	if err := command.Probe(context.Background(), "key-1"); err == nil || !strings.Contains(err.Error(), "digest changed") {
+		t.Fatalf("Probe error = %v", err)
+	}
+}
+
+func TestProviderEnvironmentOverridesOnlyPinnedHome(t *testing.T) {
+	t.Setenv("HOME", "/original")
+	t.Setenv("HTTPS_PROXY", "http://untrusted.invalid")
+	env := providerEnvironment("/isolated")
+	joined := strings.Join(env, "\n")
+	if !strings.Contains(joined, "HOME=/isolated") || strings.Contains(joined, "HOME=/original") || strings.Contains(joined, "HTTPS_PROXY") {
+		t.Fatalf("provider environment = %q", joined)
+	}
+}
+
+func TestHelperProcess(t *testing.T) {
+	switch os.Getenv(helperProcessMode) {
+	case "reply":
+		var req request
+		if err := json.NewDecoder(os.Stdin).Decode(&req); err != nil {
+			os.Exit(2)
+		}
+		_ = json.NewEncoder(os.Stdout).Encode(response{
+			OK: true, ClientAssertionType: "urn:ietf:params:oauth:client-assertion-type:jwt-bearer", ClientAssertion: "helper.jwt",
+		})
+		os.Exit(0)
+	case "hang":
+		_, _ = io.WriteString(os.Stdout, `{"ok":true,"client_assertion":"secret.jwt"`)
+		for {
+			time.Sleep(time.Hour)
+		}
+	}
+}

internal/keylessprovider/inspect_command_unix.go

@@ -0,0 +1,17 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+//go:build darwin || linux
+
+package keylessprovider
+
+import (
+	"context"
+	"os/exec"
+)
+
+func newOpenClawInspectCommand(ctx context.Context, executable string, env []string) (*exec.Cmd, error) {
+	cmd := exec.CommandContext(ctx, executable, "plugins", "inspect", pluginID, "--json")
+	cmd.Env = env
+	return cmd, nil
+}

internal/keylessprovider/inspect_command_windows.go

@@ -0,0 +1,49 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+//go:build windows
+
+package keylessprovider
+
+import (
+	"context"
+	"fmt"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"syscall"
+
+	"golang.org/x/sys/windows"
+)
+
+const inspectLauncherEnv = "LARK_CLI_OPENCLAW_INSPECT_LAUNCHER"
+
+// newOpenClawInspectCommand runs native launchers directly and npm's .cmd/.bat
+// launchers through the OS-owned command interpreter. The launcher path travels
+// in a dedicated environment variable and is expanded once inside a quoted
+// command, while delayed expansion is disabled. This avoids interpolating a
+// user-controlled path into cmd.exe syntax.
+func newOpenClawInspectCommand(ctx context.Context, executable string, env []string) (*exec.Cmd, error) {
+	ext := strings.ToLower(filepath.Ext(executable))
+	if ext == ".exe" || ext == ".com" {
+		cmd := exec.CommandContext(ctx, executable, "plugins", "inspect", pluginID, "--json")
+		cmd.Env = env
+		return cmd, nil
+	}
+	if ext != ".cmd" && ext != ".bat" {
+		return nil, fmt.Errorf("unsupported Windows OpenClaw launcher extension %q", ext)
+	}
+
+	systemDir, err := windows.GetSystemDirectory()
+	if err != nil {
+		return nil, fmt.Errorf("resolve Windows system directory: %w", err)
+	}
+	commandInterpreter := filepath.Join(systemDir, "cmd.exe")
+	cmd := exec.CommandContext(ctx, commandInterpreter)
+	cmd.Args = nil
+	cmd.Env = append(append([]string(nil), env...), inspectLauncherEnv+"="+executable)
+	cmd.SysProcAttr = &syscall.SysProcAttr{
+		CmdLine: `/d /q /s /v:off /c ""%` + inspectLauncherEnv + `%" plugins inspect ` + pluginID + ` --json"`,
+	}
+	return cmd, nil
+}