chore: release v1.0.77 (#2051)

--slide-id used the cobra StringArray flag type, which only accepts
repeated flags and does not split comma-separated values, unlike
--slide-number (int_array -> cobra IntSlice) which already supported
CSV input. This made the two selector flags inconsistent.

Switch --slide-id to the string_slice flag type (cobra StringSlice),
which natively supports both comma-separated and repeated values, and
update the flag readers from StrArray to StrSlice. normalizeSlideIDs
already trims/dedupes/filters blanks, and
validateSlidesScreenshotSelectorLimit already caps the combined
selector count, so both continue to apply unchanged to CSV input.

Add tests covering --slide-id CSV parsing, whitespace/duplicate
normalization, and the >10 selector limit via CSV, mirroring the
existing --slide-number coverage.

Address review feedback:
- Fix "comma-separate" -> "comma-separated" wording in the --slide-id
  flag description (CodeRabbit).
- Set LARKSUITE_CLI_CONFIG_DIR to t.TempDir() in the new screenshot
  tests, per the AGENTS.md testing convention, so local configuration
  state cannot leak into or be modified by the suite.
- Add a dry-run E2E test (tests/cli_e2e/slides) that pins --slide-id
  CSV parsing through the built CLI binary and asserts the emitted
  slide_ids request body, per the AGENTS.md dry-run E2E requirement
  for shortcut flag/param changes.
- Update the lark-slides skill reference to document that --slide-id
  and --slide-number both accept comma-separated values, not just
  repeated flags, so agents can discover the new syntax.

.github/workflows/release.yml

@@ -9,7 +9,40 @@ permissions:
   contents: read
 
 jobs:
-  goreleaser:
+  preflight:
+    runs-on: ubuntu-22.04
+    permissions:
+      contents: read
+    steps:
+      - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version: '22.14.0'
+
+      - name: Validate tag and commit
+        env:
+          TAG: ${{ github.ref_name }}
+        run: |
+          set -euo pipefail
+          node scripts/release-preflight.js --tag "$TAG"
+          git fetch origin main
+          HEAD_SHA="$(git rev-parse --verify 'HEAD^{commit}')"
+          MAIN_SHA="$(git rev-parse --verify 'FETCH_HEAD^{commit}')"
+          TAG_SHA="$(git rev-parse --verify "refs/tags/${TAG}^{commit}")"
+          if [[ "$TAG_SHA" != "$HEAD_SHA" ]]; then
+            echo "Tag ${TAG} does not resolve to the checked-out HEAD commit." >&2
+            exit 1
+          fi
+          if ! git merge-base --is-ancestor "$HEAD_SHA" "$MAIN_SHA"; then
+            echo "Tag ${TAG} does not point to a commit contained in origin/main." >&2
+            exit 1
+          fi
+
+  build-release:
+    needs: preflight
     runs-on: ubuntu-22.04
     permissions:
       contents: write
@@ -26,35 +59,79 @@ jobs:
         with:
           python-version: '3.x'
 
+      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
+        with:
+          node-version: '22.14.0'
+          registry-url: 'https://registry.npmjs.org'
+          package-manager-cache: false
+
+      - name: Install pinned npm
+        run: npm install --global npm@11.16.0
+
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@e435ccd777264be153ace6237001ef4d979d3a7a # v6
         with:
           version: '~> v2'
           args: release --clean
         env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          GITHUB_TOKEN: ${{ github.token }}
+
+      - name: Include release checksums
+        run: |
+          set -euo pipefail
+          test -s dist/checksums.txt
+          (cd dist && sha256sum --check checksums.txt)
+          cp dist/checksums.txt checksums.txt
+
+      - name: Collect release asset
+        run: |
+          set -euo pipefail
+          mkdir npm-publish-asset
+          cp dist/*.tar.gz dist/*.zip dist/checksums.txt npm-publish-asset/
+
+      - name: Upload release asset
+        uses: actions/upload-artifact@ea165f8d65b6e75b540449e92b4886f43607fa02 # v4
+        with:
+          name: npm-publish-asset-${{ github.run_id }}
+          path: npm-publish-asset/
+          if-no-files-found: error
+          overwrite: true
 
   publish-npm:
-    needs: goreleaser
+    needs: build-release
     runs-on: ubuntu-22.04
+    environment: npm-production
+    permissions:
+      contents: read
+      id-token: write
     steps:
       - uses: actions/checkout@34e114876b0b11c390a56381ad16ebd13914f8d5 # v4
 
-      - uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
+      - uses: actions/setup-node@249970729cb0ef3589644e2896645e5dc5ba9c38 # v6
         with:
-          node-version: '20'
+          node-version: '22.14.0'
           registry-url: 'https://registry.npmjs.org'
+          package-manager-cache: false
 
-      - name: Download checksums from release
-        env:
-          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      - name: Install pinned npm
+        run: npm install --global npm@11.16.0
+
+      - name: Download release asset
+        uses: actions/download-artifact@3e5f45b2cfb9172054b4087a40e8e0b5a5461e7c # v8
+        with:
+          name: npm-publish-asset-${{ github.run_id }}
+          path: npm-publish-asset
+
+      - name: Verify npm publish asset
         run: |
           set -euo pipefail
-          TAG="${GITHUB_REF_NAME}"
-          gh release download "${TAG}" --pattern checksums.txt --dir .
-          test -s checksums.txt || { echo "checksums.txt missing or empty for ${TAG}"; exit 1; }
+          (cd npm-publish-asset && sha256sum --check checksums.txt)
+          cp npm-publish-asset/checksums.txt checksums.txt
+          PACK_JSON="$(npm pack --ignore-scripts --json)"
+          PACK_FILE="$(node -e 'const p=JSON.parse(process.argv[1]); if(p.length!==1 || !p[0].filename) process.exit(1); process.stdout.write(p[0].filename)' "$PACK_JSON")"
+          test -s "$PACK_FILE"
+          tar -tzf "$PACK_FILE" | grep -qx 'package/checksums.txt'
+          rm "$PACK_FILE"
 
       - name: Publish to npm
-        env:
-          NODE_AUTH_TOKEN: ${{ secrets.NPM_TOKEN }}
         run: npm publish --access public

CHANGELOG.md

@@ -2,6 +2,65 @@
 
 All notable changes to this project will be documented in this file.
 
+## [v1.0.77] - 2026-07-24
+
+### Features
+
+- introducing official card icon (#1973)
+- **apps**: validate +file-list --page-size against server (0, 200] range (#2007)
+- **apps**: support absolute and relative upload paths (#2005)
+- **slides**: fill xml-schema-quick-ref gaps that forced XSD fallback (#2026)
+- **slides**: add layout density lint for sparse/empty containers (#2022)
+- add risk-control protection (#1910)
+
+### Bug Fixes
+
+- **slides**: normalize presentation flag aliases (#2032)
+- **base**: classify +form-submit as high-risk-write (#1969)
+- **slides**: declare screenshot scope
+- **slides**: support CSV multi-value for --slide-id in screenshot (#2047)
+
+### Documentation
+
+- **skill**: clarify scope handling for query expansion (#2030)
+- **base**: clarify complete and partial updates (#1993)
+- **skills**: clarify callout child rules (#2048)
+
+### Misc
+
+- fix/task id handling (#2023)
+- fix/task search pagination (#2041)
+
+## [v1.0.75] - 2026-07-22
+
+### Features
+
+- add okr single create shortcut & skill text opti (#1941)
+- **calendar**: auto-add bot self as attendee and note user-only search (#1991)
+
+### Bug Fixes
+
+- **base**: improve table shortcut behavior & guidance (#1803)
+- issue#1935 & whiteboard shortcut reformat (#1980)
+- remove legacy shortcut (#1997)
+- **e2e**: inject shared credentials by identity (#1995)
+
+### Documentation
+
+- **skill**: describe html5 block xml usage (#1380)
+- clarify fetch metadata and user cites (#1981)
+- add topic move collector workflow (#1473)
+- update lark doc HTML size limit (#2001)
+- **base**: align record write schema guidance (#2000)
+
+### Tests
+
+- **e2e**: declare request identities explicitly (#2004)
+
+### Misc
+
+- harden npm release publishing (#1918)
+
 ## [v1.0.74] - 2026-07-21
 
 ### Features
@@ -1608,6 +1667,8 @@ Bundled AI agent skills for intelligent assistance:
 - Bilingual documentation (English & Chinese).
 - CI/CD pipelines: linting, testing, coverage reporting, and automated releases.
 
+[v1.0.77]: https://github.com/larksuite/cli/releases/tag/v1.0.77
+[v1.0.75]: https://github.com/larksuite/cli/releases/tag/v1.0.75
 [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

Makefile

@@ -51,7 +51,7 @@ 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/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
+	$(NODE) --test scripts/e2e_domains.test.js scripts/fetch_e2e_tat.test.js scripts/install.test.js scripts/release-preflight.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

README.md

@@ -285,6 +285,29 @@ To reduce these risks, the tool enables default security protections at multiple
 
 We recommend using the Lark/Feishu bot integrated with this tool as a private conversational assistant. Do not add it to group chats or allow other users to interact with it, to avoid abuse of permissions or data leakage.
 
+To reduce the security risks associated with access token theft, the CLI sends a minimal set of risk-control signals with OpenAPI requests made to exact official Feishu/Lark HTTPS domains. These signals are used to help identify anomalous API activity. This protection is enabled by default. The information sent is limited to:
+
+- Operating system type: macOS, Windows, or Linux
+- Device hardware model: for example, Mac17,9
+
+To disable this protection for the current workspace, run:
+
+```bash
+lark-cli config risk-control off
+```
+
+To enable this protection for the current workspace, run:
+
+```bash
+lark-cli config risk-control on
+```
+
+To restore the default policy for the current workspace, run:
+
+```bash
+lark-cli config risk-control default
+```
+
 Please fully understand all usage risks. By using this tool, you are deemed to voluntarily assume all related responsibilities.
 
 ## Star History

README.zh.md

@@ -286,6 +286,29 @@ lark-cli schema im.messages.delete
 
 我们建议您将对接本工具的飞书机器人作为私人对话助手使用，请勿将其拉入群聊或允许其他用户与其交互，以避免权限被滥用或数据泄露。
 
+为降低访问令牌被盗用后的安全风险，CLI 在向飞书/Lark 官方 HTTPS 精确域名发起 OpenAPI 请求时，会随请求发送一组最小化的风控信号，用于辅助识别异常调用行为。该保护默认开启，发送的信息仅包括：
+
+- 操作系统类型：macOS、Windows 或 Linux
+- 设备的硬件产品型号：例如 Mac17,9
+
+如需让当前 workspace 退出该保护，可执行以下命令：
+
+```bash
+lark-cli config risk-control off
+```
+
+如需开启当前 workspace 的保护，可执行以下命令：
+
+```bash
+lark-cli config risk-control on
+```
+
+恢复当前 workspace 默认策略可执行：
+
+```bash
+lark-cli config risk-control default
+```
+
 请您充分知悉全部使用风险，使用本工具即视为您自愿承担相关所有责任。
 
 ## Star History

cmd/config/config.go

@@ -31,6 +31,7 @@ func NewCmdConfig(f *cmdutil.Factory) *cobra.Command {
 	cmd.AddCommand(NewCmdConfigShow(f, nil))
 	cmd.AddCommand(NewCmdConfigDefaultAs(f))
 	cmd.AddCommand(NewCmdConfigStrictMode(f))
+	cmd.AddCommand(NewCmdConfigRiskControl(f))
 	cmd.AddCommand(NewCmdConfigPolicy(f))
 	cmd.AddCommand(NewCmdConfigPlugins(f))
 	cmd.AddCommand(NewCmdConfigKeychainDowngrade(f))

cmd/config/risk_control.go

@@ -0,0 +1,80 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"fmt"
+
+	"github.com/spf13/cobra"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+)
+
+// NewCmdConfigRiskControl creates the workspace risk-control policy command.
+func NewCmdConfigRiskControl(f *cmdutil.Factory) *cobra.Command {
+	cmd := &cobra.Command{
+		Use:   "risk-control [on|off|default]",
+		Short: "Manage workspace account-protection policy",
+		Long: `View or set the account-protection risk-control policy for this workspace.
+
+Account protection is on by default. Use off to opt this workspace out, on to
+opt it back in explicitly, or default to remove the explicit preference.`,
+		Args: cobra.MaximumNArgs(1),
+		// This is persistent workspace policy, not credential management.
+		PersistentPreRunE: func(cmd *cobra.Command, _ []string) error {
+			cmd.SilenceUsage = true
+			return nil
+		},
+		RunE: func(cmd *cobra.Command, args []string) error {
+			config, err := core.LoadOrNotConfigured()
+			if err != nil {
+				return err
+			}
+			if len(args) == 0 {
+				printRiskControl(f, config)
+				return nil
+			}
+
+			switch args[0] {
+			case "on":
+				enabled := true
+				config.RiskControl = &enabled
+			case "off":
+				enabled := false
+				config.RiskControl = &enabled
+			case "default":
+				config.RiskControl = nil
+			default:
+				return errs.NewValidationError(errs.SubtypeInvalidArgument,
+					"invalid risk-control value %q, valid values: on | off | default", args[0])
+			}
+
+			if err := core.SaveMultiAppConfig(config); err != nil {
+				return errs.NewInternalError(errs.SubtypeStorage,
+					"failed to save risk-control policy: %v", err).WithCause(err)
+			}
+			fmt.Fprintf(f.IOStreams.ErrOut, "Risk control set to %s (workspace)\n", args[0])
+			return nil
+		},
+	}
+	cmdutil.SetRisk(cmd, cmdutil.RiskWrite)
+	return cmd
+}
+
+func printRiskControl(f *cmdutil.Factory, config *core.MultiAppConfig) {
+	source := "default"
+	if config.RiskControl != nil {
+		source = "workspace"
+	}
+	fmt.Fprintf(f.IOStreams.Out, "risk-control: %s (source: %s)\n", riskControlState(config.RiskControlEnabled()), source)
+}
+
+func riskControlState(enabled bool) string {
+	if enabled {
+		return "on"
+	}
+	return "off"
+}

cmd/config/risk_control_test.go

@@ -0,0 +1,130 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package config
+
+import (
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+)
+
+func TestRiskControlWorkspacePolicy(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	config := &core.MultiAppConfig{Apps: []core.AppConfig{{
+		AppId: "cli_test", AppSecret: core.PlainSecret("secret"), Brand: core.BrandFeishu,
+	}}}
+	if err := core.SaveMultiAppConfig(config); err != nil {
+		t.Fatal(err)
+	}
+
+	f, stdout, stderr, _ := cmdutil.TestFactory(t, nil)
+	cmd := NewCmdConfigRiskControl(f)
+	cmd.SetArgs([]string{"off"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("set off: %v", err)
+	}
+	loaded, err := core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if loaded.RiskControl == nil || *loaded.RiskControl {
+		t.Fatalf("RiskControl = %v, want explicit false", loaded.RiskControl)
+	}
+	if !strings.Contains(stderr.String(), "set to off") {
+		t.Fatalf("stderr = %q", stderr.String())
+	}
+
+	stdout.Reset()
+	cmd = NewCmdConfigRiskControl(f)
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("show: %v", err)
+	}
+	if got := stdout.String(); got != "risk-control: off (source: workspace)\n" {
+		t.Fatalf("stdout = %q", got)
+	}
+
+	cmd = NewCmdConfigRiskControl(f)
+	cmd.SetArgs([]string{"on"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("set on: %v", err)
+	}
+	loaded, err = core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if loaded.RiskControl == nil || !*loaded.RiskControl {
+		t.Fatalf("RiskControl = %v, want explicit true", loaded.RiskControl)
+	}
+
+	cmd = NewCmdConfigRiskControl(f)
+	cmd.SetArgs([]string{"default"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("reset default: %v", err)
+	}
+	loaded, err = core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if loaded.RiskControl != nil {
+		t.Fatalf("RiskControl = %v, want nil", loaded.RiskControl)
+	}
+
+	stdout.Reset()
+	cmd = NewCmdConfigRiskControl(f)
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("show default: %v", err)
+	}
+	if got := stdout.String(); got != "risk-control: on (source: default)\n" {
+		t.Fatalf("stdout = %q", got)
+	}
+}
+
+func TestRiskControlWorkspacePolicyRejectsInvalidValue(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	if err := core.SaveMultiAppConfig(&core.MultiAppConfig{Apps: []core.AppConfig{{
+		AppId: "cli_test", AppSecret: core.PlainSecret("secret"), Brand: core.BrandFeishu,
+	}}}); err != nil {
+		t.Fatal(err)
+	}
+
+	f, _, _, _ := cmdutil.TestFactory(t, nil)
+	cmd := NewCmdConfigRiskControl(f)
+	cmd.SetArgs([]string{"invalid"})
+	err := cmd.Execute()
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) {
+		t.Fatalf("error = %T %v, want *errs.ValidationError", err, err)
+	}
+	if validationErr.Subtype != errs.SubtypeInvalidArgument {
+		t.Fatalf("subtype = %q, want %q", validationErr.Subtype, errs.SubtypeInvalidArgument)
+	}
+}
+
+func TestRiskControlWorkspacePolicyAllowedWithExternalCredentials(t *testing.T) {
+	f := newConfigFactoryWithExternalProvider(t)
+	config := &core.MultiAppConfig{Apps: []core.AppConfig{{
+		AppId: "cli_test", AppSecret: core.PlainSecret("secret"), Brand: core.BrandFeishu,
+	}}}
+	if err := core.SaveMultiAppConfig(config); err != nil {
+		t.Fatal(err)
+	}
+
+	cmd := NewCmdConfig(f)
+	cmd.SetArgs([]string{"risk-control", "off"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("set off with external credentials: %v", err)
+	}
+
+	loaded, err := core.LoadMultiAppConfig()
+	if err != nil {
+		t.Fatal(err)
+	}
+	if loaded.RiskControl == nil || *loaded.RiskControl {
+		t.Fatalf("RiskControl = %v, want explicit false", loaded.RiskControl)
+	}
+}

internal/cmdutil/factory_default.go

@@ -22,6 +22,7 @@ import (
 	"github.com/larksuite/cli/internal/credential"
 	"github.com/larksuite/cli/internal/keychain"
 	"github.com/larksuite/cli/internal/registry"
+	"github.com/larksuite/cli/internal/riskcontrol"
 	_ "github.com/larksuite/cli/internal/security/contentsafety" // register content safety provider
 	"github.com/larksuite/cli/internal/transport"
 	_ "github.com/larksuite/cli/internal/vfs/localfileio" // register default FileIO provider
@@ -33,7 +34,7 @@ import (
 //	Phase 1: HttpClient (no credential dependency)
 //	Phase 2: Credential (sole data source for account info)
 //	Phase 3: Config derived from Credential
-//	Phase 4: LarkClient derived from Credential
+//	Phase 4: LarkClient derived from Credential and workspace policy
 func NewDefault(streams *IOStreams, inv InvocationContext) *Factory {
 	streams = normalizeStreams(streams)
 	f := &Factory{
@@ -54,9 +55,10 @@ func NewDefault(streams *IOStreams, inv InvocationContext) *Factory {
 
 	// Phase 0: FileIO provider (no dependency)
 	f.FileIOProvider = fileio.GetProvider()
+	workspaceConfig := core.NewConfigSnapshot()
 
 	// Phase 1: HttpClient (no credential dependency)
-	f.HttpClient = cachedHttpClientFunc(f)
+	f.HttpClient = cachedHttpClientFunc(f, workspaceConfig)
 
 	// Phase 2: Credential (sole data source)
 	// Keychain is read via closure so callers can replace f.Keychain after construction.
@@ -67,7 +69,7 @@ func NewDefault(streams *IOStreams, inv InvocationContext) *Factory {
 		ErrOut:     f.IOStreams.ErrOut,
 	})
 
-	// Phase 3: Config derived from Credential via an explicit conversion boundary.
+	// Phase 3: Runtime config contains resolved account data only.
 	f.Config = sync.OnceValues(func() (*core.CliConfig, error) {
 		acct, err := f.Credential.ResolveAccount(context.Background())
 		if err != nil {
@@ -78,8 +80,9 @@ func NewDefault(streams *IOStreams, inv InvocationContext) *Factory {
 		return cfg, nil
 	})
 
-	// Phase 4: LarkClient from Credential (placeholder AppSecret)
-	f.LarkClient = cachedLarkClientFunc(f)
+	// Phase 4: LarkClient composes account data and workspace policy at the SDK
+	// transport boundary.
+	f.LarkClient = cachedLarkClientFunc(f, workspaceConfig)
 
 	return f
 }
@@ -108,13 +111,16 @@ func safeRedirectPolicy(req *http.Request, via []*http.Request) error {
 // .StderrIsTerminal field, which tests set directly.
 var warnIfProxied = transport.WarnIfProxied
 
-func cachedHttpClientFunc(f *Factory) func() (*http.Client, error) {
+func cachedHttpClientFunc(f *Factory, workspaceConfig workspaceConfigSource) func() (*http.Client, error) {
 	return sync.OnceValues(func() (*http.Client, error) {
 		if f.IOStreams.StderrIsTerminal {
 			warnIfProxied(f.IOStreams.ErrOut)
 		}
 
+		hostSignalSource := resolveSDKHostSignalSource(workspaceConfig)
+
 		var rt http.RoundTripper = transport.Shared()
+		rt = riskcontrol.NewTransport(rt, hostSignalSource)
 		rt = &RetryTransport{Base: rt}
 		rt = &SecurityHeaderTransport{Base: rt}
 		rt = &auth.SecurityPolicyTransport{Base: rt} // Add our global response interceptor
@@ -128,7 +134,7 @@ func cachedHttpClientFunc(f *Factory) func() (*http.Client, error) {
 	})
 }
 
-func cachedLarkClientFunc(f *Factory) func() (*lark.Client, error) {
+func cachedLarkClientFunc(f *Factory, workspaceConfig workspaceConfigSource) func() (*lark.Client, error) {
 	return sync.OnceValues(func() (*lark.Client, error) {
 		acct, err := f.Credential.ResolveAccount(context.Background())
 		if err != nil {
@@ -142,8 +148,15 @@ func cachedLarkClientFunc(f *Factory) func() (*lark.Client, error) {
 		if f.IOStreams.StderrIsTerminal {
 			warnIfProxied(f.IOStreams.ErrOut)
 		}
+		hostSignalSource := resolveSDKHostSignalSource(workspaceConfig)
+		var sdkBase http.RoundTripper = transport.Shared()
+		// The innermost SDK boundary always strips reserved host-signal headers;
+		// a nil source makes it strip-only when workspace policy disables signal
+		// collection.
+		sdkBase = riskcontrol.NewTransport(sdkBase, hostSignalSource)
+		sdkTransport := wrapSDKTransport(sdkBase)
 		opts = append(opts, lark.WithHttpClient(&http.Client{
-			Transport:     buildSDKTransport(),
+			Transport:     sdkTransport,
 			CheckRedirect: safeRedirectPolicy,
 		}))
 		ep := core.ResolveEndpoints(acct.Brand)
@@ -152,9 +165,8 @@ func cachedLarkClientFunc(f *Factory) func() (*lark.Client, error) {
 	})
 }
 
-func buildSDKTransport() http.RoundTripper {
-	var sdkTransport http.RoundTripper = transport.Shared()
-	sdkTransport = &RetryTransport{Base: sdkTransport}
+func wrapSDKTransport(next http.RoundTripper) http.RoundTripper {
+	var sdkTransport http.RoundTripper = &RetryTransport{Base: next}
 	sdkTransport = &UserAgentTransport{Base: sdkTransport}
 	sdkTransport = &BuildHeaderTransport{Base: sdkTransport}
 	sdkTransport = &auth.SecurityPolicyTransport{Base: sdkTransport}

internal/cmdutil/factory_http_test.go

@@ -6,10 +6,15 @@ package cmdutil
 import (
 	"io"
 	"testing"
+
+	"github.com/larksuite/cli/internal/core"
 )
 
 func TestCachedHttpClientFunc_ReturnsSameInstance(t *testing.T) {
-	fn := cachedHttpClientFunc(&Factory{IOStreams: &IOStreams{ErrOut: io.Discard}})
+	isEnabled := false
+	f, _, _, _ := TestFactory(t, &core.CliConfig{AppID: "test-app"})
+	f.IOStreams.ErrOut = io.Discard
+	fn := cachedHttpClientFunc(f, staticWorkspaceConfig{config: &core.MultiAppConfig{RiskControl: &isEnabled}})
 
 	c1, err := fn()
 	if err != nil {
@@ -29,7 +34,10 @@ func TestCachedHttpClientFunc_ReturnsSameInstance(t *testing.T) {
 }
 
 func TestCachedHttpClientFunc_HasTimeout(t *testing.T) {
-	fn := cachedHttpClientFunc(&Factory{IOStreams: &IOStreams{ErrOut: io.Discard}})
+	isEnabled := false
+	f, _, _, _ := TestFactory(t, &core.CliConfig{AppID: "test-app"})
+	f.IOStreams.ErrOut = io.Discard
+	fn := cachedHttpClientFunc(f, staticWorkspaceConfig{config: &core.MultiAppConfig{RiskControl: &isEnabled}})
 	c, _ := fn()
 	if c.Timeout == 0 {
 		t.Error("expected non-zero timeout")
@@ -37,7 +45,10 @@ func TestCachedHttpClientFunc_HasTimeout(t *testing.T) {
 }
 
 func TestCachedHttpClientFunc_HasRedirectPolicy(t *testing.T) {
-	fn := cachedHttpClientFunc(&Factory{IOStreams: &IOStreams{ErrOut: io.Discard}})
+	isEnabled := false
+	f, _, _, _ := TestFactory(t, &core.CliConfig{AppID: "test-app"})
+	f.IOStreams.ErrOut = io.Discard
+	fn := cachedHttpClientFunc(f, staticWorkspaceConfig{config: &core.MultiAppConfig{RiskControl: &isEnabled}})
 	c, _ := fn()
 	if c.CheckRedirect == nil {
 		t.Error("expected CheckRedirect to be set (safeRedirectPolicy)")

internal/cmdutil/factory_proxy_warn_test.go

@@ -8,6 +8,7 @@ import (
 	"testing"
 
 	_ "github.com/larksuite/cli/extension/credential/env" // registers the env-backed account provider
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/envvars"
 )
 
@@ -36,13 +37,15 @@ var proxyWarnGateCases = []struct {
 // TestCachedHttpClientFunc_ProxyWarnGate verifies the http-client init path
 // invokes WarnIfProxied only when stderr is an interactive terminal.
 func TestCachedHttpClientFunc_ProxyWarnGate(t *testing.T) {
+	isEnabled := false
 	for _, tc := range proxyWarnGateCases {
 		t.Run(tc.name, func(t *testing.T) {
 			calls := installProxyWarnSpy(t)
 
-			fn := cachedHttpClientFunc(&Factory{IOStreams: &IOStreams{
-				ErrOut: io.Discard, StderrIsTerminal: tc.terminal,
-			}})
+			f, _, _, _ := TestFactory(t, &core.CliConfig{AppID: "test-app"})
+			f.IOStreams.ErrOut = io.Discard
+			f.IOStreams.StderrIsTerminal = tc.terminal
+			fn := cachedHttpClientFunc(f, staticWorkspaceConfig{config: &core.MultiAppConfig{RiskControl: &isEnabled}})
 			if _, err := fn(); err != nil {
 				t.Fatalf("http client init: %v", err)
 			}
@@ -73,7 +76,7 @@ func TestCachedLarkClientFunc_ProxyWarnGate(t *testing.T) {
 			// normalizeStreams copies the struct (out := *s), so the
 			// StderrIsTerminal field survives into f.IOStreams.
 			f := NewDefault(&IOStreams{ErrOut: io.Discard, StderrIsTerminal: tc.terminal}, InvocationContext{})
-			if _, err := cachedLarkClientFunc(f)(); err != nil {
+			if _, err := cachedLarkClientFunc(f, nil)(); err != nil {
 				t.Fatalf("lark client init: %v", err)
 			}
 

internal/cmdutil/localfile.go

@@ -0,0 +1,36 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmdutil
+
+import (
+	"io/fs"
+
+	"github.com/larksuite/cli/extension/fileio"
+	"github.com/larksuite/cli/internal/validate"
+	"github.com/larksuite/cli/internal/vfs"
+)
+
+// StatLocalFile returns metadata for a path in the process filesystem namespace.
+// It is intended for advisory validation; callers must validate the opened file
+// again before using its contents.
+func StatLocalFile(path string) (fs.FileInfo, error) {
+	localPath, err := validate.LocalInputPath(path)
+	if err != nil {
+		return nil, &fileio.PathValidationError{Err: err}
+	}
+	return vfs.Stat(localPath)
+}
+
+// OpenLocalFile opens a path in the process filesystem namespace.
+// Absolute and relative paths are accepted. It is the shared replacement for
+// direct os.Open/os.ReadFile use in commands that intentionally read local
+// paths outside the workspace sandbox. Callers inspect the returned descriptor
+// before reading so validation and use apply to the same opened file.
+func OpenLocalFile(path string) (fs.File, error) {
+	localPath, err := validate.LocalInputPath(path)
+	if err != nil {
+		return nil, &fileio.PathValidationError{Err: err}
+	}
+	return vfs.Open(localPath)
+}

internal/cmdutil/localfile_test.go

@@ -0,0 +1,96 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmdutil
+
+import (
+	"errors"
+	"io"
+	"io/fs"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/larksuite/cli/extension/fileio"
+	"github.com/larksuite/cli/internal/vfs"
+)
+
+func TestOpenLocalFile_AcceptsAbsoluteAndParentRelativePaths(t *testing.T) {
+	root := t.TempDir()
+	workDir := filepath.Join(root, "work")
+	if err := os.Mkdir(workDir, 0o755); err != nil {
+		t.Fatal(err)
+	}
+	path := filepath.Join(root, "input.txt")
+	if err := os.WriteFile(path, []byte("content"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	TestChdir(t, workDir)
+
+	for _, input := range []string{path, filepath.Join("..", "input.txt")} {
+		f, err := OpenLocalFile(input)
+		if err != nil {
+			t.Fatalf("OpenLocalFile(%q) error = %v", input, err)
+		}
+		got, readErr := io.ReadAll(f)
+		closeErr := f.Close()
+		if readErr != nil || closeErr != nil || string(got) != "content" {
+			t.Fatalf("OpenLocalFile(%q) content=%q read=%v close=%v", input, got, readErr, closeErr)
+		}
+	}
+}
+
+func TestOpenLocalFile_RejectsInvalidInput(t *testing.T) {
+	if _, err := OpenLocalFile("input\n.txt"); !errors.Is(err, fileio.ErrPathValidation) {
+		t.Fatalf("OpenLocalFile() error = %v, want ErrPathValidation", err)
+	}
+}
+
+func TestStatLocalFile_ReturnsMetadata(t *testing.T) {
+	info, err := StatLocalFile(t.TempDir())
+	if err != nil {
+		t.Fatalf("StatLocalFile() error = %v", err)
+	}
+	if !info.IsDir() {
+		t.Fatalf("StatLocalFile() mode = %v, want directory", info.Mode())
+	}
+}
+
+func TestOpenLocalFile_DoesNotStatBeforeOpen(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "input.txt")
+	if err := os.WriteFile(path, []byte("content"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	previous := vfs.DefaultFS
+	counting := &countingLocalFileFS{FS: previous}
+	vfs.DefaultFS = counting
+	t.Cleanup(func() { vfs.DefaultFS = previous })
+
+	f, err := OpenLocalFile(path)
+	if err != nil {
+		t.Fatalf("OpenLocalFile() error = %v", err)
+	}
+	if err := f.Close(); err != nil {
+		t.Fatal(err)
+	}
+	if counting.openCalls != 1 || counting.statCalls != 0 {
+		t.Fatalf("OpenLocalFile() calls: Open=%d Stat=%d, want Open=1 Stat=0", counting.openCalls, counting.statCalls)
+	}
+}
+
+type countingLocalFileFS struct {
+	vfs.FS
+	openCalls int
+	statCalls int
+}
+
+func (f *countingLocalFileFS) Open(name string) (*os.File, error) {
+	f.openCalls++
+	return f.FS.Open(name)
+}
+
+func (f *countingLocalFileFS) Stat(name string) (fs.FileInfo, error) {
+	f.statCalls++
+	return f.FS.Stat(name)
+}

internal/cmdutil/risk_control.go

@@ -0,0 +1,28 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmdutil
+
+import (
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/riskcontrol"
+)
+
+type workspaceConfigSource interface {
+	MultiAppConfig() (*core.MultiAppConfig, error)
+}
+
+// resolveSDKHostSignalSource applies workspace policy at the SDK transport
+// boundary.
+func resolveSDKHostSignalSource(config workspaceConfigSource) riskcontrol.Source {
+	if config == nil {
+		return nil
+	}
+	workspace, configErr := config.MultiAppConfig()
+	// Default-on means an existing config with no explicit preference. Absent
+	// or unreadable config cannot authorize host-signal collection.
+	if configErr != nil || !workspace.RiskControlEnabled() {
+		return nil
+	}
+	return riskcontrol.NewHostSource()
+}

internal/cmdutil/risk_control_test.go

@@ -0,0 +1,45 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmdutil
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/larksuite/cli/internal/core"
+)
+
+type staticWorkspaceConfig struct {
+	config *core.MultiAppConfig
+	err    error
+}
+
+func (s staticWorkspaceConfig) MultiAppConfig() (*core.MultiAppConfig, error) {
+	return s.config, s.err
+}
+
+func TestResolveSDKHostSignalSource(t *testing.T) {
+	disabled := false
+	tests := []struct {
+		name       string
+		config     workspaceConfigSource
+		wantSource bool
+	}{
+		{name: "workspace default on", config: staticWorkspaceConfig{config: &core.MultiAppConfig{}}, wantSource: true},
+		{name: "workspace opt-out", config: staticWorkspaceConfig{config: &core.MultiAppConfig{RiskControl: &disabled}}},
+		{name: "missing config", config: staticWorkspaceConfig{err: errors.New("file does not exist")}},
+		{name: "unreadable config", config: staticWorkspaceConfig{err: errors.New("permission denied")}},
+		{name: "nil config value", config: staticWorkspaceConfig{}},
+		{name: "nil config source"},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			got := resolveSDKHostSignalSource(test.config)
+			if (got != nil) != test.wantSource {
+				t.Fatalf("resolveSDKHostSignalSource() = %T, wantSource %t", got, test.wantSource)
+			}
+		})
+	}
+}

internal/cmdutil/transport_test.go

@@ -15,6 +15,7 @@ import (
 
 	exttransport "github.com/larksuite/cli/extension/transport"
 	internalauth "github.com/larksuite/cli/internal/auth"
+	"github.com/larksuite/cli/internal/riskcontrol"
 )
 
 type roundTripFunc func(*http.Request) (*http.Response, error)
@@ -91,13 +92,13 @@ func TestRetryTransport_DefaultNoRetry(t *testing.T) {
 }
 
 // ---------------------------------------------------------------------------
-// buildSDKTransport chain composition
+// wrapSDKTransport chain composition
 // ---------------------------------------------------------------------------
 
-func TestBuildSDKTransport_IncludesRetryTransport(t *testing.T) {
-	transport := buildSDKTransport()
+func TestWrapSDKTransport_IncludesRetryTransport(t *testing.T) {
+	transport := wrapSDKTransport(riskcontrol.NewTransport(http.DefaultTransport, nil))
 
-	// Chain: SecurityPolicy → BuildHeader → UserAgent → Retry → Base
+	// Chain: SecurityPolicy → BuildHeader → UserAgent → Retry → RiskControl → Base
 	sec, ok := transport.(*internalauth.SecurityPolicyTransport)
 	if !ok {
 		t.Fatalf("outer transport type = %T, want *auth.SecurityPolicyTransport", transport)
@@ -110,18 +111,23 @@ func TestBuildSDKTransport_IncludesRetryTransport(t *testing.T) {
 	if !ok {
 		t.Fatalf("layer after BuildHeader = %T, want *UserAgentTransport", bh.Base)
 	}
-	if _, ok := ua.Base.(*RetryTransport); !ok {
+	retry, ok := ua.Base.(*RetryTransport)
+	if !ok {
 		t.Fatalf("inner transport type = %T, want *RetryTransport", ua.Base)
 	}
+	if _, ok := retry.Base.(*riskcontrol.Transport); !ok {
+		t.Fatalf("layer after Retry = %T, want *riskcontrol.Transport", retry.Base)
+	}
 }
 
-func TestBuildSDKTransport_WithExtension(t *testing.T) {
+func TestWrapSDKTransport_WithExtension(t *testing.T) {
+	previous := exttransport.GetProvider()
 	exttransport.Register(&stubTransportProvider{})
-	t.Cleanup(func() { exttransport.Register(nil) })
+	t.Cleanup(func() { exttransport.Register(previous) })
 
-	transport := buildSDKTransport()
+	transport := wrapSDKTransport(riskcontrol.NewTransport(http.DefaultTransport, nil))
 
-	// Chain: extensionMiddleware → SecurityPolicy → BuildHeader → UserAgent → Retry → Base
+	// Chain: extensionMiddleware → SecurityPolicy → BuildHeader → UserAgent → Retry → RiskControl → Base
 	mid, ok := transport.(*extensionMiddleware)
 	if !ok {
 		t.Fatalf("outer transport type = %T, want *extensionMiddleware", transport)
@@ -138,17 +144,23 @@ func TestBuildSDKTransport_WithExtension(t *testing.T) {
 	if !ok {
 		t.Fatalf("layer after BuildHeader = %T, want *UserAgentTransport", bh.Base)
 	}
-	if _, ok := ua.Base.(*RetryTransport); !ok {
+	retry, ok := ua.Base.(*RetryTransport)
+	if !ok {
 		t.Fatalf("innermost transport type = %T, want *RetryTransport", ua.Base)
 	}
+	if _, ok := retry.Base.(*riskcontrol.Transport); !ok {
+		t.Fatalf("layer after Retry = %T, want *riskcontrol.Transport", retry.Base)
+	}
 }
 
-func TestBuildSDKTransport_WithoutExtension(t *testing.T) {
+func TestWrapSDKTransport_WithoutExtension(t *testing.T) {
+	previous := exttransport.GetProvider()
 	exttransport.Register(nil)
+	t.Cleanup(func() { exttransport.Register(previous) })
 
-	transport := buildSDKTransport()
+	transport := wrapSDKTransport(riskcontrol.NewTransport(http.DefaultTransport, nil))
 
-	// Chain: SecurityPolicy → BuildHeader → UserAgent → Retry → Base
+	// Chain: SecurityPolicy → BuildHeader → UserAgent → Retry → RiskControl → Base
 	sec, ok := transport.(*internalauth.SecurityPolicyTransport)
 	if !ok {
 		t.Fatalf("outer transport type = %T, want *auth.SecurityPolicyTransport", transport)
@@ -161,9 +173,13 @@ func TestBuildSDKTransport_WithoutExtension(t *testing.T) {
 	if !ok {
 		t.Fatalf("layer after BuildHeader = %T, want *UserAgentTransport", bh.Base)
 	}
-	if _, ok := ua.Base.(*RetryTransport); !ok {
+	retry, ok := ua.Base.(*RetryTransport)
+	if !ok {
 		t.Fatalf("inner transport type = %T, want *RetryTransport", ua.Base)
 	}
+	if _, ok := retry.Base.(*riskcontrol.Transport); !ok {
+		t.Fatalf("layer after Retry = %T, want *riskcontrol.Transport", retry.Base)
+	}
 }
 
 // ---------------------------------------------------------------------------
@@ -261,6 +277,40 @@ func (buildTamperingInterceptor) PreRoundTrip(req *http.Request) func(*http.Resp
 	return nil
 }
 
+type riskHeaderTamperingInterceptor struct{}
+
+func (riskHeaderTamperingInterceptor) PreRoundTrip(req *http.Request) func(*http.Response, error) {
+	req.Header.Set(riskcontrol.HeaderOSType, "extension-value")
+	req.Header.Set(riskcontrol.HeaderProductModel, "extension-value")
+	return nil
+}
+
+func TestWrapSDKTransport_StripsExtensionRiskHeaders(t *testing.T) {
+	previous := exttransport.GetProvider()
+	exttransport.Register(&stubTransportProvider{interceptor: riskHeaderTamperingInterceptor{}})
+	t.Cleanup(func() { exttransport.Register(previous) })
+
+	var received http.Header
+	network := roundTripFunc(func(req *http.Request) (*http.Response, error) {
+		received = req.Header.Clone()
+		return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}, nil
+	})
+	req, err := http.NewRequest(http.MethodGet, "https://open.feishu.cn/open-apis/test", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	req.Header.Set("Authorization", "Bearer token")
+
+	resp, err := wrapSDKTransport(riskcontrol.NewTransport(network, nil)).RoundTrip(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	resp.Body.Close()
+	if received.Get(riskcontrol.HeaderOSType) != "" || received.Get(riskcontrol.HeaderProductModel) != "" {
+		t.Fatalf("extension risk headers reached network: %v", received)
+	}
+}
+
 // TestBuildHeaderTransport_SDKChain_OverridesTamperedHeader verifies that the
 // X-Cli-Build header is force-written by BuildHeaderTransport in the SDK
 // transport chain, even when an extension tries to delete or spoof it. This
@@ -277,7 +327,7 @@ func TestBuildHeaderTransport_SDKChain_OverridesTamperedHeader(t *testing.T) {
 	exttransport.Register(&stubTransportProvider{interceptor: buildTamperingInterceptor{}})
 	t.Cleanup(func() { exttransport.Register(nil) })
 
-	// Replicate the SDK chain layering used by buildSDKTransport.
+	// Replicate the SDK chain layering used by wrapSDKTransport.
 	var base http.RoundTripper = http.DefaultTransport
 	base = &RetryTransport{Base: base}
 	base = &UserAgentTransport{Base: base}

internal/core/config.go

@@ -60,11 +60,18 @@ func (a *AppConfig) ProfileName() string {
 // MultiAppConfig is the multi-app config file format.
 type MultiAppConfig struct {
 	StrictMode  StrictMode  `json:"strictMode,omitempty"`
+	RiskControl *bool       `json:"riskControl,omitempty"`
 	CurrentApp  string      `json:"currentApp,omitempty"`
 	PreviousApp string      `json:"previousApp,omitempty"`
 	Apps        []AppConfig `json:"apps"`
 }
 
+// RiskControlEnabled resolves the workspace policy. An omitted preference
+// keeps the default-on account-protection behavior.
+func (m *MultiAppConfig) RiskControlEnabled() bool {
+	return m != nil && (m.RiskControl == nil || *m.RiskControl)
+}
+
 // CurrentAppConfig returns the currently active app config.
 // Resolution priority: profileOverride > CurrentApp field > Apps[0].
 func (m *MultiAppConfig) CurrentAppConfig(profileOverride string) *AppConfig {

internal/core/config_snapshot.go

@@ -0,0 +1,37 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package core
+
+import (
+	"io/fs"
+	"sync"
+)
+
+// ConfigSnapshot lazily captures one stable view of config.json for a CLI
+// invocation. All runtime consumers share the same load result so account and
+// workspace policy resolution cannot observe different file revisions. Callers
+// must treat the returned config as read-only.
+type ConfigSnapshot struct {
+	load func() (*MultiAppConfig, error)
+}
+
+// NewConfigSnapshot creates a lazily loaded invocation-scoped config snapshot.
+func NewConfigSnapshot() *ConfigSnapshot {
+	return newConfigSnapshot(LoadMultiAppConfig)
+}
+
+func newConfigSnapshot(load func() (*MultiAppConfig, error)) *ConfigSnapshot {
+	if load == nil {
+		return &ConfigSnapshot{}
+	}
+	return &ConfigSnapshot{load: sync.OnceValues(load)}
+}
+
+// MultiAppConfig returns the captured persistent config and load error.
+func (s *ConfigSnapshot) MultiAppConfig() (*MultiAppConfig, error) {
+	if s == nil || s.load == nil {
+		return nil, fs.ErrNotExist
+	}
+	return s.load()
+}

internal/core/config_snapshot_test.go

@@ -0,0 +1,58 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package core
+
+import (
+	"errors"
+	"io/fs"
+	"testing"
+)
+
+func TestConfigSnapshotLoadsOnce(t *testing.T) {
+	calls := 0
+	want := &MultiAppConfig{}
+	snapshot := newConfigSnapshot(func() (*MultiAppConfig, error) {
+		calls++
+		return want, nil
+	})
+
+	for range 2 {
+		config, err := snapshot.MultiAppConfig()
+		if err != nil {
+			t.Fatal(err)
+		}
+		if config != want {
+			t.Fatal("snapshot returned a different config instance")
+		}
+	}
+	if calls != 1 {
+		t.Fatalf("config loads = %d, want 1", calls)
+	}
+}
+
+func TestConfigSnapshotZeroValueIsMissing(t *testing.T) {
+	config, err := (&ConfigSnapshot{}).MultiAppConfig()
+	if config != nil || !errors.Is(err, fs.ErrNotExist) {
+		t.Fatalf("MultiAppConfig() = (%v, %v), want (nil, fs.ErrNotExist)", config, err)
+	}
+}
+
+func TestConfigSnapshotCachesError(t *testing.T) {
+	calls := 0
+	want := errors.New("load failed")
+	snapshot := newConfigSnapshot(func() (*MultiAppConfig, error) {
+		calls++
+		return nil, want
+	})
+
+	for range 2 {
+		config, err := snapshot.MultiAppConfig()
+		if config != nil || !errors.Is(err, want) {
+			t.Fatalf("MultiAppConfig() = (%v, %v), want (nil, %v)", config, err, want)
+		}
+	}
+	if calls != 1 {
+		t.Fatalf("config loads = %d, want 1", calls)
+	}
+}

internal/core/config_test.go

@@ -60,7 +60,9 @@ func TestAppConfig_LangOmitEmpty(t *testing.T) {
 }
 
 func TestMultiAppConfig_RoundTrip(t *testing.T) {
+	disabled := false
 	config := &MultiAppConfig{
+		RiskControl: &disabled,
 		Apps: []AppConfig{{
 			AppId: "cli_test", AppSecret: PlainSecret("s"),
 			Brand: BrandLark, Lang: "zh", Users: []AppUser{},
@@ -84,6 +86,9 @@ func TestMultiAppConfig_RoundTrip(t *testing.T) {
 	if got.Apps[0].Brand != BrandLark {
 		t.Errorf("Brand = %q, want %q", got.Apps[0].Brand, BrandLark)
 	}
+	if got.RiskControl == nil || *got.RiskControl {
+		t.Errorf("RiskControl = %v, want explicit false", got.RiskControl)
+	}
 }
 
 func TestResolveConfigFromMulti_RejectsSecretKeyMismatch(t *testing.T) {

internal/riskcontrol/osmodel.go

@@ -0,0 +1,142 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package deviceinfo collects the platform hardware product model and the
+// platform values used by device-related risk-control headers.
+package riskcontrol
+
+import (
+	"runtime"
+	"strings"
+	"sync"
+	"unicode"
+	"unicode/utf8"
+
+	"golang.org/x/net/http/httpguts"
+)
+
+// OSType is the server-side risk-control operating-system enum.
+type OSType string
+
+// OS type enum values for X-Agent-Os-Type.
+const (
+	OSTypeUnknown = "0"
+	OSTypeWindows = "1"
+	OSTypeLinux   = "2"
+	OSTypeMacOS   = "3"
+)
+
+const (
+	// TerminalTypePC is the fixed X-Agent-Terminal-Type value for the CLI.
+	TerminalTypePC = "1"
+
+	// Unknown is used when the hardware product model cannot be collected.
+	Unknown = "Unknown"
+
+	// deviceModelMaxBytes bounds the value added to X-Agent-Device-Type.
+	// Device models are short identifiers; a larger value is treated as
+	// malformed rather than truncated so the header never misrepresents it.
+	deviceModelMaxBytes = 256
+)
+
+// Snapshot contains the deliberately small risk-control signal set.
+// ProductModel is omitted when the platform cannot provide a safe value.
+type Snapshot struct {
+	OSType       OSType
+	ProductModel string
+}
+
+// Source supplies one immutable process-level snapshot.
+type Source interface {
+	Snapshot() Snapshot
+}
+
+// HostSource lazily reads host signals once, after outbound policy authorizes
+// the first request. Failed probes are cached and are not retried per request.
+type HostSource struct {
+	once      sync.Once
+	value     Snapshot
+	readModel func() string
+}
+
+// NewHostSource creates the production host signal source.
+func NewHostSource() *HostSource {
+	return &HostSource{readModel: readDeviceModel}
+}
+
+// Snapshot returns the cached host signal snapshot.
+func (s *HostSource) Snapshot() Snapshot {
+	if s == nil {
+		return Snapshot{}
+	}
+	s.once.Do(func() {
+		readModel := s.readModel
+		if readModel == nil {
+			readModel = readDeviceModel
+		}
+		s.value = Snapshot{
+			OSType:       GetOSType(OSName()),
+			ProductModel: normalizeDeviceModel(readModel()),
+		}
+	})
+	return s.value
+}
+
+// normalizeModel removes non-printable characters and returns a model only
+// when the remaining text is safe to use as an HTTP header value. Input that
+// cannot produce a valid model is rejected so Get can fall back to Unknown.
+func normalizeDeviceModel(model string) string {
+	if !utf8.ValidString(model) {
+		return ""
+	}
+	model = strings.Map(func(r rune) rune {
+		switch {
+		case r == '\r' || r == '\n' || r == '\x00':
+			return -1
+		case unicode.IsSpace(r):
+			return ' '
+		case unicode.IsPrint(r):
+			return r
+		default:
+			return -1
+		}
+	}, model)
+
+	model = strings.Join(strings.Fields(model), " ")
+
+	if model == "" || len(model) > deviceModelMaxBytes {
+		return ""
+	}
+	if !httpguts.ValidHeaderFieldValue(model) {
+		return ""
+	}
+	return model
+}
+
+// GetOSType maps a platform name to the X-Agent-Os-Type enum.
+func GetOSType(osName string) OSType {
+	switch osName {
+	case "Windows":
+		return OSTypeWindows
+	case "Linux":
+		return OSTypeLinux
+	case "MacOS":
+		return OSTypeMacOS
+	default:
+		return OSTypeUnknown
+	}
+}
+
+// OSName returns the platform name used by GetOSType.
+func OSName() string {
+	switch runtime.GOOS {
+	case "darwin":
+		return "MacOS"
+	case "windows":
+		return "Windows"
+	case "linux":
+		return "Linux"
+	default:
+		return runtime.GOOS
+	}
+}

internal/riskcontrol/osmodel_darwin.go

@@ -0,0 +1,27 @@
+//go:build darwin
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import "golang.org/x/sys/unix"
+
+// readDeviceModel reads the current product key first and falls back to the
+// legacy model key. Trying both keys is more robust than branching on a macOS
+// version because virtualized or restricted environments may expose only one.
+func readDeviceModel() string {
+	return readDarwinDeviceModel(unix.Sysctl)
+}
+
+func readDarwinDeviceModel(readSysctl func(string) (string, error)) string {
+	for _, key := range [...]string{"hw.product", "hw.model"} {
+		model, err := readSysctl(key)
+		if err == nil {
+			if model = normalizeDeviceModel(model); model != "" {
+				return model
+			}
+		}
+	}
+	return ""
+}

internal/riskcontrol/osmodel_darwin_test.go

@@ -0,0 +1,48 @@
+//go:build darwin
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+)
+
+func TestReadDarwinDeviceModelPrefersProductAndFallsBackToModel(t *testing.T) {
+	t.Run("product available", func(t *testing.T) {
+		var keys []string
+		got := readDarwinDeviceModel(func(key string) (string, error) {
+			keys = append(keys, key)
+			if key == "hw.product" {
+				return "Mac16,1", nil
+			}
+			return "", errors.New("unexpected fallback")
+		})
+		if got != "Mac16,1" {
+			t.Fatalf("model = %q, want %q", got, "Mac16,1")
+		}
+		if want := []string{"hw.product"}; !reflect.DeepEqual(keys, want) {
+			t.Fatalf("sysctl keys = %v, want %v", keys, want)
+		}
+	})
+
+	t.Run("product unavailable", func(t *testing.T) {
+		var keys []string
+		got := readDarwinDeviceModel(func(key string) (string, error) {
+			keys = append(keys, key)
+			if key == "hw.model" {
+				return "MacBookPro18,3", nil
+			}
+			return "", errors.New("not available")
+		})
+		if got != "MacBookPro18,3" {
+			t.Fatalf("model = %q, want %q", got, "MacBookPro18,3")
+		}
+		if want := []string{"hw.product", "hw.model"}; !reflect.DeepEqual(keys, want) {
+			t.Fatalf("sysctl keys = %v, want %v", keys, want)
+		}
+	})
+}

internal/riskcontrol/osmodel_linux.go

@@ -0,0 +1,17 @@
+//go:build linux
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+// readDeviceModel returns a stable device model for Linux. DMI and device-tree
+// values vary widely and can expose the host or virtualization platform when
+// the CLI runs in a container or sandbox.
+func readDeviceModel() string {
+	return readLinuxDeviceModel()
+}
+
+func readLinuxDeviceModel() string {
+	return "linux"
+}

internal/riskcontrol/osmodel_linux_test.go

@@ -0,0 +1,20 @@
+//go:build linux
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import "testing"
+
+func TestReadDeviceModelReturnsLinux(t *testing.T) {
+	if got := readDeviceModel(); got != "linux" {
+		t.Fatalf("readDeviceModel() = %q, want %q", got, "linux")
+	}
+}
+
+func TestReadLinuxDeviceModel(t *testing.T) {
+	if got := readLinuxDeviceModel(); got != "linux" {
+		t.Fatalf("readLinuxDeviceModel() = %q, want %q", got, "linux")
+	}
+}

internal/riskcontrol/osmodel_other.go

@@ -0,0 +1,11 @@
+//go:build !darwin && !windows && !linux
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+// readDeviceModel returns an empty model on unsupported platforms.
+func readDeviceModel() string {
+	return ""
+}

internal/riskcontrol/osmodel_test.go

@@ -0,0 +1,143 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import (
+	"fmt"
+	"strings"
+	"sync"
+	"sync/atomic"
+	"testing"
+	"unicode"
+)
+
+func TestHostSourceCachesNonEmptyModel(t *testing.T) {
+	calls := 0
+	s := &HostSource{readModel: func() string {
+		calls++
+		return "  MacBookPro18,3\n"
+	}}
+
+	if got := s.Snapshot(); got.ProductModel != "MacBookPro18,3" {
+		t.Fatalf("first Snapshot().ProductModel = %q, want %q", got.ProductModel, "MacBookPro18,3")
+	}
+	if got := s.Snapshot(); got.ProductModel != "MacBookPro18,3" {
+		t.Fatalf("second Snapshot().ProductModel = %q, want cached model", got.ProductModel)
+	}
+	if calls != 1 {
+		t.Fatalf("read called %d times, want 1", calls)
+	}
+}
+
+func TestHostSourceCachesEmptyModel(t *testing.T) {
+	calls := 0
+	s := &HostSource{readModel: func() string {
+		calls++
+		return ""
+	}}
+
+	if got := s.Snapshot(); got.ProductModel != "" {
+		t.Fatalf("first Snapshot().ProductModel = %q, want empty", got.ProductModel)
+	}
+	if got := s.Snapshot(); got.ProductModel != "" {
+		t.Fatalf("second Snapshot().ProductModel = %q, want cached empty result", got.ProductModel)
+	}
+	if calls != 1 {
+		t.Fatalf("read called %d times, want 1", calls)
+	}
+}
+
+func TestHostSourceReadsOnceAcrossConcurrentCalls(t *testing.T) {
+	var calls atomic.Int32
+	s := &HostSource{readModel: func() string {
+		calls.Add(1)
+		return "ThinkPad X1 Carbon"
+	}}
+
+	const goroutines = 32
+	var wg sync.WaitGroup
+	wg.Add(goroutines)
+	for i := 0; i < goroutines; i++ {
+		go func() {
+			defer wg.Done()
+			snapshot := s.Snapshot()
+			if snapshot.ProductModel != "ThinkPad X1 Carbon" {
+				t.Errorf("Snapshot().ProductModel = %q, want %q", snapshot.ProductModel, "ThinkPad X1 Carbon")
+			}
+		}()
+	}
+	wg.Wait()
+
+	if got := calls.Load(); got != 1 {
+		t.Fatalf("read called %d times, want 1", got)
+	}
+}
+
+func TestNormalizeDeviceModel(t *testing.T) {
+	tests := []struct {
+		name  string
+		model string
+		want  string
+	}{
+		{name: "trims surrounding whitespace", model: "  MacBookPro18,3\n", want: "MacBookPro18,3"},
+		{name: "trims device tree terminator", model: "Raspberry Pi 5\x00", want: "Raspberry Pi 5"},
+		{name: "allows printable Unicode", model: "联想 ThinkPad X1", want: "联想 ThinkPad X1"},
+		{name: "rejects empty", model: " \t\r\n"},
+		{name: "rejects invalid UTF-8", model: string([]byte{'M', 0xff, '1'})},
+		{name: "removes CRLF", model: "model\r\nname", want: "modelname"},
+		{name: "normalizes tab", model: "model\tname", want: "model name"},
+		{name: "removes NUL", model: "model\x00name", want: "modelname"},
+		{name: "removes control character", model: "model\x1fname", want: "modelname"},
+		{name: "removes DEL", model: "model\x7fname", want: "modelname"},
+		{name: "normalizes Unicode line separator", model: "model\u2028name", want: "model name"},
+		{name: "collapses whitespace", model: "  model\t \u00a0 name  ", want: "model name"},
+		{name: "accepts maximum byte length", model: strings.Repeat("a", deviceModelMaxBytes), want: strings.Repeat("a", deviceModelMaxBytes)},
+		{name: "rejects overlong value", model: strings.Repeat("a", deviceModelMaxBytes+1)},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := normalizeDeviceModel(tt.model); got != tt.want {
+				t.Fatalf("normalizeDeviceModel(%q) = %q, want %q", tt.model, got, tt.want)
+			}
+		})
+	}
+}
+
+func TestNormalizeDeviceModelRemovesHTTPControlBytes(t *testing.T) {
+	for value := 0; value <= 0x7f; value++ {
+		if value >= 0x20 && value < 0x7f {
+			continue
+		}
+		t.Run(fmt.Sprintf("0x%02x", value), func(t *testing.T) {
+			model := "model" + string(rune(value)) + "name"
+			want := "modelname"
+			if value != '\r' && value != '\n' && value != '\x00' && unicode.IsSpace(rune(value)) {
+				want = "model name"
+			}
+			if got := normalizeDeviceModel(model); got != want {
+				t.Fatalf("normalizeDeviceModel(%q) = %q, want %q", model, got, want)
+			}
+		})
+	}
+}
+
+func TestGetOSType(t *testing.T) {
+	tests := []struct {
+		name string
+		want OSType
+	}{
+		{name: "Windows", want: OSTypeWindows},
+		{name: "Linux", want: OSTypeLinux},
+		{name: "MacOS", want: OSTypeMacOS},
+		{name: "unknown", want: OSTypeUnknown},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := GetOSType(tt.name); got != tt.want {
+				t.Errorf("GetOSType(%q) = %q, want %q", tt.name, got, tt.want)
+			}
+		})
+	}
+}

internal/riskcontrol/osmodel_windows.go

@@ -0,0 +1,44 @@
+//go:build windows
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import "golang.org/x/sys/windows/registry"
+
+// systemInfoRegistryPaths lists registry locations in device-model lookup order.
+var systemInfoRegistryPaths = [...]string{
+	`HARDWARE\DESCRIPTION\System\BIOS`,
+	`SYSTEM\CurrentControlSet\Control\SystemInformation`,
+	`SYSTEM\HardwareConfig\Current`,
+}
+
+// readDeviceModel returns the first product name found in the Windows registry.
+func readDeviceModel() string {
+	return readWindowsDeviceModel(readWindowsRegistryModel)
+}
+
+func readWindowsRegistryModel(path string) (string, error) {
+	key, err := registry.OpenKey(registry.LOCAL_MACHINE, path, registry.READ)
+	if err != nil {
+		return "", err
+	}
+	defer key.Close()
+
+	model, _, err := key.GetStringValue("SystemProductName")
+	return model, err
+}
+
+func readWindowsDeviceModel(readRegistryModel func(string) (string, error)) string {
+	for _, path := range systemInfoRegistryPaths {
+		model, err := readRegistryModel(path)
+		if err != nil {
+			continue
+		}
+		if model = normalizeDeviceModel(model); model != "" {
+			return model
+		}
+	}
+	return ""
+}

internal/riskcontrol/osmodel_windows_test.go

@@ -0,0 +1,78 @@
+//go:build windows
+
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+)
+
+func TestReadWindowsDeviceModelFallback(t *testing.T) {
+	readError := errors.New("registry read failed")
+	tests := []struct {
+		name      string
+		values    map[string]string
+		errors    map[string]error
+		want      string
+		wantPaths []string
+	}{
+		{
+			name:      "first path wins",
+			values:    map[string]string{systemInfoRegistryPaths[0]: "Surface Laptop"},
+			want:      "Surface Laptop",
+			wantPaths: []string{systemInfoRegistryPaths[0]},
+		},
+		{
+			name: "read failure falls back",
+			errors: map[string]error{
+				systemInfoRegistryPaths[0]: readError,
+			},
+			values: map[string]string{
+				systemInfoRegistryPaths[1]: "ThinkPad X1 Carbon",
+			},
+			want:      "ThinkPad X1 Carbon",
+			wantPaths: systemInfoRegistryPaths[:2],
+		},
+		{
+			name: "empty normalized value falls back",
+			values: map[string]string{
+				systemInfoRegistryPaths[0]: " \r\n\x00",
+				systemInfoRegistryPaths[1]: "Latitude 7450",
+			},
+			want:      "Latitude 7450",
+			wantPaths: systemInfoRegistryPaths[:2],
+		},
+		{
+			name: "all paths fail",
+			errors: map[string]error{
+				systemInfoRegistryPaths[0]: readError,
+				systemInfoRegistryPaths[1]: readError,
+				systemInfoRegistryPaths[2]: readError,
+			},
+			wantPaths: systemInfoRegistryPaths[:],
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			var paths []string
+			got := readWindowsDeviceModel(func(path string) (string, error) {
+				paths = append(paths, path)
+				if err := tt.errors[path]; err != nil {
+					return "", err
+				}
+				return tt.values[path], nil
+			})
+			if got != tt.want {
+				t.Fatalf("model = %q, want %q", got, tt.want)
+			}
+			if !reflect.DeepEqual(paths, tt.wantPaths) {
+				t.Fatalf("registry paths = %v, want %v", paths, tt.wantPaths)
+			}
+		})
+	}
+}

internal/riskcontrol/transport.go

@@ -0,0 +1,138 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import (
+	"net/http"
+	"net/url"
+	"strings"
+
+	"github.com/larksuite/cli/internal/core"
+	internaltransport "github.com/larksuite/cli/internal/transport"
+)
+
+const (
+	HeaderProductModel = "X-Agent-Device-Type"
+	HeaderOSType       = "X-Agent-Os-Type"
+)
+
+var restrictedHeaders = [...]string{HeaderProductModel, HeaderOSType}
+
+// Transport is the feature's final outbound boundary. It removes caller- or
+// extension-supplied signal headers first and writes trusted values only after
+// authorizing an official SDK origin and authentication state.
+type Transport struct {
+	next   http.RoundTripper
+	source Source
+}
+
+// NewTransport creates the final SDK outbound policy boundary. A nil source
+// disables collection and injection while preserving restricted-header
+// stripping for opt-out and extension-credential requests.
+func NewTransport(next http.RoundTripper, source Source) *Transport {
+	if next == nil {
+		next = internaltransport.Fallback()
+	}
+	return &Transport{
+		next:   next,
+		source: source,
+	}
+}
+
+// RoundTrip implements http.RoundTripper.
+func (t *Transport) RoundTrip(req *http.Request) (*http.Response, error) {
+	req = req.Clone(req.Context())
+	if req.Header == nil {
+		req.Header = make(http.Header)
+	}
+	stripRestrictedHeaders(req.Header)
+
+	if t.source != nil && t.routeAllowsSignals(req) {
+		snapshot := t.source.Snapshot()
+		if isSupportedOSType(snapshot.OSType) {
+			req.Header.Set(HeaderOSType, string(snapshot.OSType))
+		}
+		if model := normalizeDeviceModel(snapshot.ProductModel); model != "" {
+			req.Header.Set(HeaderProductModel, model)
+		}
+	}
+	return t.next.RoundTrip(req)
+}
+
+func isSupportedOSType(value OSType) bool {
+	switch value {
+	case OSTypeWindows, OSTypeLinux, OSTypeMacOS:
+		return true
+	default:
+		return false
+	}
+}
+
+func stripRestrictedHeaders(header http.Header) {
+	for name := range header {
+		for _, restricted := range restrictedHeaders {
+			if strings.EqualFold(name, restricted) {
+				delete(header, name)
+				break
+			}
+		}
+	}
+}
+
+type origin struct {
+	scheme string
+	host   string
+	port   string
+}
+
+var officialFeishuOrigins = [...]origin{
+	apiOrigin(core.BrandFeishu, core.ResolveEndpoints(core.BrandFeishu).Open),
+	apiOrigin(core.BrandLark, core.ResolveEndpoints(core.BrandLark).Open),
+	apiOrigin(core.BrandFeishu, core.ResolveEndpoints(core.BrandFeishu).Accounts),
+	apiOrigin(core.BrandLark, core.ResolveEndpoints(core.BrandLark).Accounts),
+}
+
+func (t *Transport) routeAllowsSignals(req *http.Request) bool {
+	if req == nil || req.URL == nil {
+		return false
+	}
+	return isOfficialFeishuOrigin(originOf(req.URL))
+}
+
+func originOf(value *url.URL) origin {
+	if value == nil {
+		return origin{}
+	}
+	scheme := strings.ToLower(value.Scheme)
+	port := value.Port()
+	if port == "" {
+		switch scheme {
+		case "https":
+			port = "443"
+		case "http":
+			port = "80"
+		}
+	}
+	return origin{scheme: scheme, host: strings.ToLower(value.Hostname()), port: port}
+}
+
+func apiOrigin(brand core.LarkBrand, endpointURL string) origin {
+	endpoint, err := url.Parse(endpointURL)
+	if err != nil {
+		return origin{}
+	}
+	return originOf(endpoint)
+}
+
+func isOfficialFeishuOrigin(candidate origin) bool {
+	if candidate.scheme != "https" || candidate.port != "443" {
+		return false
+	}
+	for _, official := range officialFeishuOrigins {
+		if candidate == official {
+			return true
+		}
+	}
+	return false
+}

internal/riskcontrol/transport_test.go

@@ -0,0 +1,124 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package riskcontrol
+
+import (
+	"net/http"
+	"strings"
+	"sync/atomic"
+	"testing"
+)
+
+type roundTripFunc func(*http.Request) (*http.Response, error)
+
+func (f roundTripFunc) RoundTrip(req *http.Request) (*http.Response, error) {
+	return f(req)
+}
+
+type countingSource struct {
+	calls atomic.Int32
+}
+
+func (s *countingSource) Snapshot() Snapshot {
+	s.calls.Add(1)
+	return Snapshot{OSType: OSTypeMacOS, ProductModel: "Mac16,1"}
+}
+
+type staticSource Snapshot
+
+func (s staticSource) Snapshot() Snapshot { return Snapshot(s) }
+
+func TestTransportAuthorizesBeforeCollecting(t *testing.T) {
+	tests := []struct {
+		name          string
+		requestURL    string
+		authorization string
+		wantSignals   bool
+	}{
+		{name: "authenticated official HTTPS", requestURL: "https://open.feishu.cn/open-apis/test", authorization: "Bearer token", wantSignals: true},
+		{name: "Lark official HTTPS", requestURL: "https://open.larksuite.com/open-apis/test", authorization: "Bearer token", wantSignals: true},
+		{name: "official explicit HTTPS port", requestURL: "https://OPEN.FEISHU.CN:443/open-apis/test", authorization: "Bearer token", wantSignals: true},
+		{name: "unauthenticated", requestURL: "https://open.feishu.cn/open-apis/test", wantSignals: true},
+		{name: "official non-OpenAPI origin", requestURL: "https://accounts.feishu.cn/open-apis/test", authorization: "Bearer token", wantSignals: true},
+		{name: "off domain", requestURL: "https://example.com/test", authorization: "Bearer token", wantSignals: false},
+		{name: "lookalike", requestURL: "https://open.feishu.cn.evil.example/test", authorization: "Bearer token", wantSignals: false},
+		{name: "plain HTTP", requestURL: "http://open.feishu.cn/test", authorization: "Bearer token", wantSignals: false},
+		{name: "non-default port", requestURL: "https://open.feishu.cn:8443/test", authorization: "Bearer token", wantSignals: false},
+	}
+
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			source := &countingSource{}
+			var received http.Header
+			base := roundTripFunc(func(req *http.Request) (*http.Response, error) {
+				received = req.Header.Clone()
+				return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}, nil
+			})
+			req, err := http.NewRequest(http.MethodGet, test.requestURL, nil)
+			if err != nil {
+				t.Fatal(err)
+			}
+			req.Header.Set("Authorization", test.authorization)
+			req.Header.Set(HeaderOSType, "caller-value")
+			req.Header.Set(HeaderProductModel, "caller-value")
+			req.Header["x-agent-device-type"] = []string{"non-canonical-caller-value"}
+
+			resp, err := NewTransport(base, source).RoundTrip(req)
+			if err != nil {
+				t.Fatal(err)
+			}
+			resp.Body.Close()
+
+			gotSignals := received.Get(HeaderOSType) != ""
+			if gotSignals != test.wantSignals {
+				t.Fatalf("signals present = %t, want %t; headers=%v", gotSignals, test.wantSignals, received)
+			}
+			wantCalls := int32(0)
+			if test.wantSignals {
+				wantCalls = 1
+			}
+			if got := source.calls.Load(); got != wantCalls {
+				t.Fatalf("Snapshot calls = %d, want %d", got, wantCalls)
+			}
+			if got := req.Header.Get(HeaderOSType); got != "caller-value" {
+				t.Fatalf("caller request OS header = %q, want unchanged", got)
+			}
+			if got := req.Header.Get(HeaderProductModel); got != "caller-value" {
+				t.Fatalf("caller request product-model header = %q, want unchanged", got)
+			}
+			if !test.wantSignals {
+				for name := range received {
+					if strings.EqualFold(name, HeaderProductModel) || strings.EqualFold(name, HeaderOSType) {
+						t.Fatalf("restricted header leaked as %q", name)
+					}
+				}
+			}
+		})
+	}
+}
+
+func TestTransportValidatesSourceSnapshot(t *testing.T) {
+	var received http.Header
+	base := roundTripFunc(func(req *http.Request) (*http.Response, error) {
+		received = req.Header.Clone()
+		return &http.Response{StatusCode: http.StatusOK, Body: http.NoBody}, nil
+	})
+	req, err := http.NewRequest(http.MethodGet, "https://open.feishu.cn/open-apis/test", nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	req.Header.Set("Authorization", "Bearer token")
+
+	resp, err := NewTransport(base, staticSource{
+		OSType:       OSType("unsupported"),
+		ProductModel: "unsafe\nvalue",
+	}).RoundTrip(req)
+	if err != nil {
+		t.Fatal(err)
+	}
+	resp.Body.Close()
+	if received.Get(HeaderOSType) == "" && received.Get(HeaderProductModel) == "" {
+		t.Fatalf("no signals collected: %v", received)
+	}
+}

internal/validate/path.go

@@ -17,6 +17,13 @@ func SafeInputPath(path string) (string, error) {
 	return localfileio.SafeInputPath(path)
 }
 
+// LocalInputPath validates a local input path without restricting it to the
+// current working directory. It delegates to localfileio.LocalInputPath so
+// command validation and shared local-file readers use one policy.
+func LocalInputPath(path string) (string, error) {
+	return localfileio.LocalInputPath(path)
+}
+
 // SafeEnvDirPath validates an environment-provided application directory path.
 // Delegates to localfileio.SafeEnvDirPath.
 func SafeEnvDirPath(path, envName string) (string, error) {

internal/validate/path_test.go

@@ -211,6 +211,18 @@ func TestSafeLocalFlagPath(t *testing.T) {
 	}
 }
 
+func TestLocalInputPath_AllowsLocalPathsAndRejectsUnsafeCharacters(t *testing.T) {
+	for _, path := range []string{"/tmp/report.pdf", "../report.pdf"} {
+		got, err := LocalInputPath(path)
+		if err != nil || got != path {
+			t.Fatalf("LocalInputPath(%q) = %q, %v; want unchanged path", path, got, err)
+		}
+	}
+	if _, err := LocalInputPath("report\n.pdf"); err == nil {
+		t.Fatal("LocalInputPath() unexpectedly accepted a control character")
+	}
+}
+
 func TestSafeUploadPath_AllowsTempFileAbsolutePath(t *testing.T) {
 	// GIVEN: a real temp file (absolute path under os.TempDir())
 	f, err := os.CreateTemp("", "upload-test-*.bin")

internal/vfs/localfileio/path.go

@@ -7,6 +7,7 @@ import (
 	"fmt"
 	"path/filepath"
 	"strings"
+	"unicode"
 
 	"github.com/larksuite/cli/internal/charcheck"
 	"github.com/larksuite/cli/internal/vfs"
@@ -22,6 +23,32 @@ func SafeInputPath(path string) (string, error) {
 	return safePath(path, "--file")
 }
 
+// LocalInputPath validates an input path in the process local filesystem
+// namespace. It intentionally does not impose cwd containment or canonicalize
+// the path: absolute paths, parent-relative paths, and symlink traversal retain
+// their normal OS semantics. Character validation remains mandatory because
+// paths are user-controlled and may appear in errors or progress output.
+func LocalInputPath(path string) (string, error) {
+	if strings.TrimSpace(path) == "" {
+		return "", fmt.Errorf("local input path must not be empty")
+	}
+	if strings.IndexFunc(path, unicode.IsControl) >= 0 {
+		return "", fmt.Errorf("local input path must not contain control characters")
+	}
+	if err := charcheck.RejectControlChars(path, "local input path"); err != nil {
+		return "", err
+	}
+	if err := validateLocalInputPlatform(path); err != nil {
+		return "", err
+	}
+	return path, nil
+}
+
+func isWindowsNonLocalNamespace(path string) bool {
+	normalized := strings.ReplaceAll(path, "/", `\`)
+	return strings.HasPrefix(normalized, `\\`) || strings.HasPrefix(normalized, `\??\`)
+}
+
 // SafeLocalFlagPath validates a flag value as a local file path.
 // Empty values and http/https URLs are returned unchanged without validation.
 func SafeLocalFlagPath(flagName, value string) (string, error) {
@@ -29,7 +56,7 @@ func SafeLocalFlagPath(flagName, value string) (string, error) {
 		return value, nil
 	}
 	if _, err := SafeInputPath(value); err != nil {
-		return "", fmt.Errorf("%s: %v", flagName, err)
+		return "", fmt.Errorf("%s: %w", flagName, err)
 	}
 	return value, nil
 }

internal/vfs/localfileio/path_local_other.go

@@ -0,0 +1,8 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+//go:build !windows
+
+package localfileio
+
+func validateLocalInputPlatform(string) error { return nil }

internal/vfs/localfileio/path_local_windows.go

@@ -0,0 +1,33 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+//go:build windows
+
+package localfileio
+
+import (
+	"fmt"
+	"path/filepath"
+	"strings"
+)
+
+func validateLocalInputPlatform(path string) error {
+	if isWindowsNonLocalNamespace(path) {
+		return fmt.Errorf("local input path must not use a Windows network or device namespace")
+	}
+
+	cleaned := filepath.Clean(path)
+	volume := filepath.VolumeName(cleaned)
+	remainder := strings.TrimLeft(cleaned[len(volume):], `\/`)
+	for _, component := range strings.FieldsFunc(remainder, func(r rune) bool {
+		return r == '\\' || r == '/'
+	}) {
+		if component == "." || component == ".." {
+			continue
+		}
+		if !filepath.IsLocal(component) {
+			return fmt.Errorf("local input path contains a reserved Windows path component %q", component)
+		}
+	}
+	return nil
+}

internal/vfs/localfileio/path_local_windows_test.go

@@ -0,0 +1,27 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+//go:build windows
+
+package localfileio
+
+import "testing"
+
+func TestLocalInputPath_RejectsWindowsNetworkDeviceAndReservedPaths(t *testing.T) {
+	for _, input := range []string{
+		`\\server\share\report.pdf`,
+		`//server/share/report.pdf`,
+		`\\.\pipe\upload`,
+		`\\?\C:\Users\agent\report.pdf`,
+		`\\?\UNC\server\share\report.pdf`,
+		`\??\C:\Users\agent\report.pdf`,
+		`C:\Users\agent\NUL.txt`,
+		`CON`,
+	} {
+		t.Run(input, func(t *testing.T) {
+			if _, err := LocalInputPath(input); err == nil {
+				t.Fatalf("LocalInputPath(%q) unexpectedly succeeded", input)
+			}
+		})
+	}
+}

internal/vfs/localfileio/path_test.go

@@ -4,6 +4,7 @@
 package localfileio
 
 import (
+	"fmt"
 	"os"
 	"path/filepath"
 	"strings"
@@ -71,6 +72,72 @@ func TestSafeOutputPath_RejectsPathTraversalAndDangerousInput(t *testing.T) {
 	}
 }
 
+func TestLocalInputPath_AllowsLocalNamespaceWithoutRewriting(t *testing.T) {
+	for _, input := range []string{
+		"/tmp/report.pdf",
+		"../outside/report.pdf",
+		"./report.pdf",
+		"nested/../report.pdf",
+		`C:\Users\agent\report.pdf`,
+		"报告.pdf",
+	} {
+		t.Run(input, func(t *testing.T) {
+			got, err := LocalInputPath(input)
+			if err != nil {
+				t.Fatalf("LocalInputPath(%q) error = %v", input, err)
+			}
+			if got != input {
+				t.Fatalf("LocalInputPath(%q) = %q, want path preserved verbatim", input, got)
+			}
+		})
+	}
+}
+
+func TestWindowsNonLocalNamespace(t *testing.T) {
+	for _, input := range []string{
+		`\\server\share\report.pdf`,
+		`//server/share/report.pdf`,
+		`\\.\pipe\upload`,
+		`\\?\C:\Users\agent\report.pdf`,
+		`\\?\UNC\server\share\report.pdf`,
+		`\??\C:\Users\agent\report.pdf`,
+	} {
+		if !isWindowsNonLocalNamespace(input) {
+			t.Errorf("isWindowsNonLocalNamespace(%q) = false, want true", input)
+		}
+	}
+
+	for _, input := range []string{
+		`C:\Users\agent\report.pdf`,
+		`C:/Users/agent/report.pdf`,
+		`..\outside\report.pdf`,
+		`.\report.pdf`,
+	} {
+		if isWindowsNonLocalNamespace(input) {
+			t.Errorf("isWindowsNonLocalNamespace(%q) = true, want false", input)
+		}
+	}
+}
+
+func TestLocalInputPath_RejectsEmptyControlAndDangerousUnicode(t *testing.T) {
+	for _, input := range []string{
+		"",
+		"   ",
+		"file\x00.txt",
+		"file\tname.txt",
+		"file\nname.txt",
+		"file\rname.txt",
+		"file\u202Ename.txt",
+		"file\u200Bname.txt",
+	} {
+		t.Run(fmt.Sprintf("%q", input), func(t *testing.T) {
+			if _, err := LocalInputPath(input); err == nil {
+				t.Fatalf("LocalInputPath(%q) unexpectedly succeeded", input)
+			}
+		})
+	}
+}
+
 func TestSafeOutputPath_ReturnsCanonicalAbsolutePath(t *testing.T) {
 	// GIVEN: a clean temp directory as CWD
 	dir := t.TempDir()

package-lock.json

@@ -1,15 +1,16 @@
 {
   "name": "@larksuite/cli",
-  "version": "1.0.11",
+  "version": "1.0.77",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@larksuite/cli",
-      "version": "1.0.11",
+      "version": "1.0.77",
       "cpu": [
         "x64",
-        "arm64"
+        "arm64",
+        "riscv64"
       ],
       "hasInstallScript": true,
       "license": "MIT",

package.json

@@ -1,12 +1,13 @@
 {
   "name": "@larksuite/cli",
-  "version": "1.0.74",
+  "version": "1.0.77",
   "description": "The official CLI for Lark/Feishu open platform",
   "bin": {
     "lark-cli": "scripts/run.js"
   },
   "scripts": {
-    "postinstall": "node scripts/install.js"
+    "postinstall": "node scripts/install.js",
+    "release:check": "node scripts/release-preflight.js"
   },
   "os": [
     "darwin",

scripts/install.js

@@ -265,10 +265,7 @@ function getExpectedChecksum(archiveName, checksumsDir) {
   const checksumsPath = path.join(dir, "checksums.txt");
 
   if (!fs.existsSync(checksumsPath)) {
-    console.error(
-      "[WARN] checksums.txt not found, skipping checksum verification"
-    );
-    return null;
+    throw new Error(`[SECURITY] checksums.txt not found at ${checksumsPath}`);
   }
 
   const content = fs.readFileSync(checksumsPath, "utf8");
@@ -286,7 +283,14 @@ function getExpectedChecksum(archiveName, checksumsDir) {
 }
 
 function verifyChecksum(archivePath, expectedHash) {
-  if (expectedHash === null) return;
+  if (typeof expectedHash !== "string" || expectedHash.length === 0) {
+    throw new Error("[SECURITY] Expected checksum is missing or invalid");
+  }
+  if (!/^[0-9a-f]{64}$/i.test(expectedHash)) {
+    throw new Error(
+      "[SECURITY] Expected checksum must be a 64-character hexadecimal SHA-256 digest"
+    );
+  }
 
   // Stream the file to avoid loading the entire archive into memory.
   // Archives can be 10-100MB; streaming keeps RSS constant.

scripts/install.test.js

@@ -52,11 +52,12 @@ describe("getExpectedChecksum", () => {
     );
   });
 
-  it("returns null when checksums.txt does not exist", () => {
+  it("throws [SECURITY]-prefixed Error when checksums.txt does not exist", () => {
     const dir = fs.mkdtempSync(path.join(os.tmpdir(), "checksum-test-"));
-    // No checksums.txt in dir
-    const result = getExpectedChecksum("anything.tar.gz", dir);
-    assert.equal(result, null);
+    assert.throws(
+      () => getExpectedChecksum("anything.tar.gz", dir),
+      { message: /^\[SECURITY\] checksums\.txt not found/ }
+    );
   });
 
   it("skips malformed lines and still finds valid entry", () => {
@@ -106,7 +107,7 @@ describe("verifyChecksum", () => {
     verifyChecksum(filePath, hash);
   });
 
-  it("matches case-insensitively", () => {
+  it("accepts a valid uppercase 64-character hex hash", () => {
     const content = "case test";
     const filePath = makeTmpFile(content);
     const hash = sha256(content).toUpperCase();
@@ -114,6 +115,40 @@ describe("verifyChecksum", () => {
     verifyChecksum(filePath, hash);
   });
 
+  for (const [name, expectedHash] of [
+    ["null", null],
+    ["empty", ""],
+    ["non-string", 123],
+  ]) {
+    it(`throws [SECURITY]-prefixed Error for ${name} expected hash`, () => {
+      const filePath = makeTmpFile("real content");
+      assert.throws(
+        () => verifyChecksum(filePath, expectedHash),
+        (err) => {
+          assert.match(err.message, /^\[SECURITY\]/);
+          assert.match(err.message, /Expected checksum is missing or invalid/);
+          return true;
+        }
+      );
+    });
+  }
+
+  it("throws [SECURITY] format Error for an incorrectly sized hash", () => {
+    const filePath = makeTmpFile("real content");
+    assert.throws(
+      () => verifyChecksum(filePath, "abc123"),
+      { message: /^\[SECURITY\] Expected checksum must be a 64-character hexadecimal SHA-256 digest$/ }
+    );
+  });
+
+  it("throws [SECURITY] format Error for a non-hex hash", () => {
+    const filePath = makeTmpFile("real content");
+    assert.throws(
+      () => verifyChecksum(filePath, "g".repeat(64)),
+      { message: /^\[SECURITY\] Expected checksum must be a 64-character hexadecimal SHA-256 digest$/ }
+    );
+  });
+
   it("throws [SECURITY]-prefixed Error on mismatch", () => {
     const filePath = makeTmpFile("real content");
     assert.throws(

scripts/release-preflight.js

@@ -0,0 +1,108 @@
+#!/usr/bin/env node
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+const fs = require("node:fs");
+const path = require("node:path");
+
+const STABLE_VERSION_PATTERN = /^(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)\.(0|[1-9][0-9]*)$/;
+
+function isStableVersion(value) {
+  return typeof value === "string" && STABLE_VERSION_PATTERN.test(value);
+}
+
+function releaseError(message, observed, hint) {
+  return { ok: false, error: { type: "release_preflight", message, observed, hint } };
+}
+
+function validateReleasePreflight(packageJson, packageLockJson, tag) {
+  const packageVersion = packageJson?.version;
+  const lockVersion = packageLockJson?.version;
+  const lockRootVersion = packageLockJson?.packages?.[""]?.version;
+  const observed = {
+    packageVersion: packageVersion ?? null,
+    lockVersion: lockVersion ?? null,
+    lockRootVersion: lockRootVersion ?? null,
+    tagVersion: null,
+  };
+
+  for (const [field, value] of [
+    ["package.json.version", packageVersion],
+    ["package-lock.json.version", lockVersion],
+    ['package-lock.json.packages[""].version', lockRootVersion],
+  ]) {
+    if (!isStableVersion(value)) {
+      return releaseError(
+        `${field} must be a stable release version in X.Y.Z form`,
+        observed,
+        "Use the same stable X.Y.Z version in all package fields; prerelease and build metadata are not allowed for production releases.",
+      );
+    }
+  }
+
+  if (packageVersion !== lockVersion || packageVersion !== lockRootVersion) {
+    return releaseError(
+      "Package version fields do not match",
+      observed,
+      "Synchronize package.json.version and both package-lock.json version fields.",
+    );
+  }
+
+  if (tag === undefined) {
+    return { ok: true, data: observed };
+  }
+  if (typeof tag !== "string" || !tag.startsWith("v") || !isStableVersion(tag.slice(1))) {
+    return releaseError(
+      "--tag must use the stable release form vX.Y.Z",
+      { ...observed, tag },
+      `Use --tag v${packageVersion}; prerelease and build metadata are not allowed for production releases.`,
+    );
+  }
+
+  const tagVersion = tag.slice(1);
+  if (tagVersion !== packageVersion) {
+    return releaseError(
+      "Tag version does not match the package version",
+      { ...observed, tagVersion, tag },
+      `Use --tag v${packageVersion}.`,
+    );
+  }
+  return { ok: true, data: { ...observed, tagVersion } };
+}
+
+function writeResult(result) {
+  (result.ok ? process.stdout : process.stderr).write(`${JSON.stringify(result)}\n`);
+  if (!result.ok) process.exitCode = 1;
+}
+
+function main() {
+  const args = process.argv.slice(2);
+  let tag;
+  if (args.length === 2 && args[0] === "--tag") {
+    tag = args[1];
+  } else if (args.length !== 0) {
+    writeResult(releaseError(
+      "Expected no arguments or --tag vX.Y.Z",
+      { arguments: args },
+      "Run release:check without arguments or pass exactly one --tag value.",
+    ));
+    return;
+  }
+
+  const repoRoot = path.resolve(__dirname, "..");
+  try {
+    const packageJson = JSON.parse(fs.readFileSync(path.join(repoRoot, "package.json"), "utf8"));
+    const packageLockJson = JSON.parse(fs.readFileSync(path.join(repoRoot, "package-lock.json"), "utf8"));
+    writeResult(validateReleasePreflight(packageJson, packageLockJson, tag));
+  } catch (error) {
+    writeResult(releaseError(
+      "Could not read release package metadata",
+      { reason: error.message },
+      "Ensure package.json and package-lock.json exist and contain valid JSON.",
+    ));
+  }
+}
+
+module.exports = { validateReleasePreflight };
+
+if (require.main === module) main();

scripts/release-preflight.test.js

@@ -0,0 +1,66 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+const assert = require("node:assert/strict");
+const { describe, it } = require("node:test");
+
+const { validateReleasePreflight } = require("./release-preflight");
+
+function metadata(version = "1.2.3") {
+  return {
+    packageJson: { version },
+    packageLockJson: {
+      version,
+      packages: { "": { version } },
+    },
+  };
+}
+
+function assertRejected(result) {
+  assert.equal(result.ok, false);
+  assert.equal(result.error.type, "release_preflight");
+  assert.equal(typeof result.error.message, "string");
+}
+
+describe("validateReleasePreflight", () => {
+  it("accepts matching stable package, lock, and tag versions", () => {
+    const { packageJson, packageLockJson } = metadata();
+
+    assert.deepEqual(
+      validateReleasePreflight(packageJson, packageLockJson, "v1.2.3"),
+      {
+        ok: true,
+        data: {
+          packageVersion: "1.2.3",
+          lockVersion: "1.2.3",
+          lockRootVersion: "1.2.3",
+          tagVersion: "1.2.3",
+        },
+      },
+    );
+  });
+
+  it("rejects non-stable or inconsistent package metadata", () => {
+    const prerelease = metadata("1.2.3-beta.1");
+    const topLevelMismatch = metadata();
+    topLevelMismatch.packageLockJson.version = "1.2.4";
+    const rootMismatch = metadata();
+    rootMismatch.packageLockJson.packages[""].version = "1.2.4";
+
+    for (const { packageJson, packageLockJson } of [
+      prerelease,
+      topLevelMismatch,
+      rootMismatch,
+    ]) {
+      assertRejected(validateReleasePreflight(packageJson, packageLockJson));
+    }
+  });
+
+  it("rejects an invalid or mismatched release tag", () => {
+    const { packageJson, packageLockJson } = metadata();
+
+    for (const tag of ["1.2.3", "v1.2.3-beta.1", "v1.2.4"]) {
+      assertRejected(validateReleasePreflight(packageJson, packageLockJson, tag));
+    }
+  });
+});

scripts/tag-release.sh

@@ -3,49 +3,48 @@ set -euo pipefail
 
 SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
 REPO_ROOT="$(cd "${SCRIPT_DIR}/.." && pwd)"
+cd "${REPO_ROOT}"
 
-# Read version from package.json
-VERSION=$(node -p "require('${REPO_ROOT}/package.json').version")
-
-if [ -z "$VERSION" ]; then
-  echo "Error: could not read version from package.json" >&2
-  exit 1
-fi
-
+VERSION=$(node -p "require('./package.json').version")
 TAG="v${VERSION}"
 
+node "${SCRIPT_DIR}/release-preflight.js" --tag "${TAG}"
+
 echo "Version: ${VERSION}"
 echo "Tag: ${TAG}"
 
-# Check if tag already exists locally
-if git rev-parse "$TAG" >/dev/null 2>&1; then
-  echo "Tag ${TAG} already exists locally, skipping."
-  exit 0
-fi
-
-# Check if tag already exists on remote
-if git ls-remote --tags origin "$TAG" | grep -q "$TAG"; then
-  echo "Tag ${TAG} already exists on remote, skipping."
-  exit 0
-fi
-
-# Ensure package.json changes are committed before tagging
-if git diff --name-only | grep -q 'package.json' || git diff --cached --name-only | grep -q 'package.json'; then
-  echo "Error: package.json has uncommitted changes. Please commit before tagging." >&2
+CURRENT_BRANCH=$(git branch --show-current)
+if [ "${CURRENT_BRANCH}" != "main" ]; then
+  echo "Error: releases must be tagged from main; current branch is '${CURRENT_BRANCH}'." >&2
   exit 1
 fi
 
-# Ensure current branch is pushed to remote before tagging
-CURRENT_BRANCH=$(git rev-parse --abbrev-ref HEAD)
-LOCAL_SHA=$(git rev-parse HEAD)
-REMOTE_SHA=$(git rev-parse "origin/${CURRENT_BRANCH}" 2>/dev/null || echo "")
-if [ "$LOCAL_SHA" != "$REMOTE_SHA" ]; then
-  echo "Error: local branch '${CURRENT_BRANCH}' is not in sync with remote. Please push your commits first." >&2
+if ! git diff --quiet HEAD -- package.json package-lock.json; then
+  echo "Error: package.json or package-lock.json has uncommitted changes. Please commit them before tagging." >&2
   exit 1
 fi
 
-# Create and push tag
-git tag "$TAG"
-git push origin "$TAG"
+git fetch origin main
 
-echo "Successfully created and pushed tag ${TAG}"
+HEAD_SHA=$(git rev-parse HEAD)
+FETCHED_MAIN_SHA=$(git rev-parse "FETCH_HEAD^{commit}")
+if [ "${HEAD_SHA}" != "${FETCHED_MAIN_SHA}" ]; then
+  echo "Error: HEAD must exactly match origin/main before tagging." >&2
+  exit 1
+fi
+
+if git rev-parse -q --verify "refs/tags/${TAG}" >/dev/null; then
+  echo "Error: local tag ${TAG} already exists." >&2
+  exit 1
+fi
+
+REMOTE_TAG=$(git ls-remote --tags origin "refs/tags/${TAG}")
+if [ -n "${REMOTE_TAG}" ]; then
+  echo "Error: remote tag ${TAG} already exists." >&2
+  exit 1
+fi
+
+git tag "${TAG}" "${HEAD_SHA}"
+git push origin "refs/tags/${TAG}"
+
+echo "Successfully pushed tag ${TAG}"

shortcuts/apps/apps_file_list.go

@@ -12,10 +12,23 @@ import (
 	"github.com/larksuite/cli/shortcuts/common"
 )
 
+// maxFileListPageSize 是 file_list 分页上限，与后端 paas_storage checkMaxKeys 的 (0, 200] 契约对齐：
+// page_size > 200 服务端直接返回 ErrInvalidRequest("maxKeys not in range (0, 200]")。CLI 前置校验避免无谓往返。
+// 注：服务端对 page_size<=0 会兜底为默认值，但 CLI 默认已是 20、显式传 <1 属误用，故与其它 list 命令一致地按 [1, 200] 校验。
+const maxFileListPageSize = 200
+
+// validateFileListPageSize 前置校验 --page-size ∈ [1, maxFileListPageSize]，与后端 checkMaxKeys 的 (0, 200] 契约对齐。
+func validateFileListPageSize(n int) error {
+	if n < 1 || n > maxFileListPageSize {
+		return appsValidationParamError("--page-size", "--page-size must be between 1 and %d", maxFileListPageSize)
+	}
+	return nil
+}
+
 // AppsFileList lists files in a Miaoda app's storage (cursor pagination)。
 //
 // GET /apps/{app_id}/storage/file_list。过滤器：--name / --path / --type / --size-gt /
-// --size-lt / --uploaded-since / --uploaded-until（精确或区间），分页 --page-size/--page-token。
+// --size-lt / --uploaded-since / --uploaded-until（精确或区间），分页 --page-size(1..200)/--page-token。
 // file 域不分 dev/online，无 --env。
 //
 // pretty 渲染 5 列：file_name / path / size / type / uploaded_at；空结果打 "No files found."。
@@ -41,13 +54,17 @@ var AppsFileList = common.Shortcut{
 		{Name: "size-lt", Type: "int", Desc: "filter: size less than (bytes)"},
 		{Name: "uploaded-since", Desc: "filter: uploaded at or after; relative (7d/2h/30s) | date (2026-04-15) | datetime (2026-04-15T10:00:00) | ISO 8601 w/ TZ (bare date/datetime read in local timezone)"},
 		{Name: "uploaded-until", Desc: "filter: uploaded at or before; relative (7d/2h/30s) | date (2026-04-15) | datetime (2026-04-15T10:00:00) | ISO 8601 w/ TZ (bare date/datetime read in local timezone)"},
-		{Name: "page-size", Type: "int", Default: "20", Desc: "page size"},
+		{Name: "page-size", Type: "int", Default: "20", Desc: "page size (1..200)"},
 		{Name: "page-token", Desc: "pagination cursor from previous response"},
 	},
 	Validate: func(ctx context.Context, rctx *common.RuntimeContext) error {
 		if _, err := requireAppID(rctx.Str("app-id")); err != nil {
 			return err
 		}
+		// page_size 前置校验：对齐后端 checkMaxKeys 的 (0, 200] 契约，避免 >200 触发服务端 ErrInvalidRequest。
+		if err := validateFileListPageSize(rctx.Int("page-size")); err != nil {
+			return err
+		}
 		// 设计原则三：<timestamp> 多格式 → 归一化为 RFC3339 UTC，回写到 flag 供 buildFileListParams 透传。
 		for _, f := range []string{"uploaded-since", "uploaded-until"} {
 			if strings.TrimSpace(rctx.Str(f)) == "" {

shortcuts/apps/apps_file_list_test.go

@@ -82,6 +82,34 @@ func TestAppsFileList_RequiresAppID(t *testing.T) {
 	}
 }
 
+// TestAppsFileList_PageSizeOutOfRange 验证 --page-size 超出 (0, 200] 契约时前置报 --page-size 校验错误，不发请求。
+func TestAppsFileList_PageSizeOutOfRange(t *testing.T) {
+	for _, ps := range []string{"0", "201", "500"} {
+		factory, stdout, _ := newAppsExecuteFactory(t)
+		err := runAppsShortcut(t, AppsFileList,
+			[]string{"+file-list", "--app-id", "app_x", "--page-size", ps, "--as", "user"}, factory, stdout)
+		var ve *errs.ValidationError
+		if !errors.As(err, &ve) {
+			t.Fatalf("page-size=%s: err = %T %v, want *errs.ValidationError", ps, err, err)
+		}
+		if ve.Param != "--page-size" {
+			t.Fatalf("page-size=%s: Param = %q, want --page-size", ps, ve.Param)
+		}
+	}
+}
+
+// TestAppsFileList_PageSizeBoundaryOK 验证边界值 1 与 200 通过校验（dry-run 不报错并把 page_size 下发）。
+func TestAppsFileList_PageSizeBoundaryOK(t *testing.T) {
+	for _, ps := range []string{"1", "200"} {
+		factory, stdout, _ := newAppsExecuteFactory(t)
+		if err := runAppsShortcut(t, AppsFileList,
+			[]string{"+file-list", "--app-id", "app_x", "--page-size", ps, "--dry-run", "--as", "user"},
+			factory, stdout); err != nil {
+			t.Fatalf("page-size=%s: dry-run err=%v", ps, err)
+		}
+	}
+}
+
 // 过滤器 + 分页全部进 query（size-gt/lt 走 int，uploaded_since/until 原样）。
 func TestAppsFileList_DryRunSendsFiltersAndPagination(t *testing.T) {
 	factory, stdout, _ := newAppsExecuteFactory(t)

shortcuts/apps/apps_file_upload.go

@@ -14,7 +14,6 @@ import (
 	"strings"
 
 	"github.com/larksuite/cli/errs"
-	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/shortcuts/common"
 )
 
@@ -47,21 +46,7 @@ var AppsFileUpload = common.Shortcut{
 		if _, err := requireAppID(rctx.Str("app-id")); err != nil {
 			return err
 		}
-		f := strings.TrimSpace(rctx.Str("file"))
-		if f == "" {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file is required").WithParam("--file")
-		}
-		st, err := rctx.FileIO().Stat(f)
-		if err != nil {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file: %v", err).WithParam("--file").WithCause(err)
-		}
-		if st.IsDir() {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file must be a file, not a directory").WithParam("--file")
-		}
-		if st.Size() > fileUploadMaxBytes {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "file size %d bytes exceeds the 100 MB upload limit", st.Size()).WithParam("--file")
-		}
-		return nil
+		return rctx.ValidateLocalFileFlag("file", fileUploadMaxBytes)
 	},
 	DryRun: func(ctx context.Context, rctx *common.RuntimeContext) *common.DryRunAPI {
 		appID, _ := requireAppID(rctx.Str("app-id"))
@@ -76,9 +61,9 @@ var AppsFileUpload = common.Shortcut{
 			return err
 		}
 		localPath := strings.TrimSpace(rctx.Str("file"))
-		content, err := cmdutil.ReadInputFile(rctx.FileIO(), localPath)
+		content, err := rctx.ReadLocalFileFlag("file", fileUploadMaxBytes)
 		if err != nil {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--file: %v", err).WithParam("--file").WithCause(err)
+			return err
 		}
 		fileName := filepath.Base(localPath)
 		contentType := mimeByExt(fileName)

shortcuts/apps/apps_file_upload_test.go

@@ -12,6 +12,7 @@ import (
 	"net/http/httptest"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 	"testing"
 
@@ -58,22 +59,17 @@ func TestAppsFileUpload_RejectsDirectory(t *testing.T) {
 	}
 }
 
-// TestAppsFileUpload_DryRunPreUpload 验证 dry-run 输出 POST file_pre_upload，body.file_name 取文件 basename。
+// TestAppsFileUpload_DryRunPreUpload verifies that dry-run validates the local
+// file and previews the pre-upload request without reading or uploading it.
 func TestAppsFileUpload_DryRunPreUpload(t *testing.T) {
-	// Validate 会 Stat --file（在 DryRun 之前），故 dry-run 也需要真实存在的文件。
-	dir := t.TempDir()
-	if err := os.WriteFile(filepath.Join(dir, "logo.png"), []byte("x"), 0o600); err != nil {
+	absolutePath := filepath.Join(t.TempDir(), "logo.png")
+	if err := os.WriteFile(absolutePath, []byte("not-read-by-dry-run"), 0o600); err != nil {
 		t.Fatal(err)
 	}
-	oldWD, _ := os.Getwd()
-	if err := os.Chdir(dir); err != nil {
-		t.Fatal(err)
-	}
-	t.Cleanup(func() { _ = os.Chdir(oldWD) })
 
 	factory, stdout, _ := newAppsExecuteFactory(t)
 	if err := runAppsShortcut(t, AppsFileUpload,
-		[]string{"+file-upload", "--app-id", "app_x", "--file", "logo.png", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
+		[]string{"+file-upload", "--app-id", "app_x", "--file", absolutePath, "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
 	var env dryRunAPIEnvelope
@@ -87,6 +83,18 @@ func TestAppsFileUpload_DryRunPreUpload(t *testing.T) {
 	}
 }
 
+func TestAppsFileUpload_DryRunRejectsMissingFile(t *testing.T) {
+	missingAbsolutePath := filepath.Join(t.TempDir(), "does-not-exist", "logo.png")
+
+	factory, stdout, _ := newAppsExecuteFactory(t)
+	err := runAppsShortcut(t, AppsFileUpload,
+		[]string{"+file-upload", "--app-id", "app_x", "--file", missingAbsolutePath, "--dry-run", "--as", "user"}, factory, stdout)
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) || validationErr.Subtype != errs.SubtypeInvalidArgument || validationErr.Param != "--file" {
+		t.Fatalf("error = %T %v, want invalid_argument for --file", err, err)
+	}
+}
+
 // 三步直传：pre-upload → 客户端 PUT 字节 → callback。
 func TestAppsFileUpload_EndToEnd(t *testing.T) {
 	var putBody []byte
@@ -149,6 +157,142 @@ func TestAppsFileUpload_EndToEnd(t *testing.T) {
 	}
 }
 
+// TestAppsFileUpload_AcceptsAbsolutePath verifies that file-upload can read an
+// absolute path outside the current working directory.
+func TestAppsFileUpload_AcceptsAbsolutePath(t *testing.T) {
+	var putBody []byte
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodPut {
+			w.WriteHeader(http.StatusMethodNotAllowed)
+			return
+		}
+		putBody, _ = io.ReadAll(r.Body)
+		w.Header().Set("ETag", `"etag-abs"`)
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer srv.Close()
+
+	// Keep the process cwd unchanged so the temporary file is outside it.
+	dir := t.TempDir()
+	absFile := filepath.Join(dir, "report.pdf")
+	if !filepath.IsAbs(absFile) {
+		t.Fatalf("test setup: %q is not absolute", absFile)
+	}
+	if err := os.WriteFile(absFile, []byte("PDFBYTES"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+
+	factory, stdout, reg := newAppsExecuteFactory(t)
+	reg.Register(&httpmock.Stub{
+		Method: "POST", URL: "/open-apis/spark/v1/apps/app_x/storage/file_pre_upload",
+		Body: map[string]interface{}{"code": 0, "data": map[string]interface{}{"upload_url": srv.URL, "upload_id": "up-abs"}},
+	})
+	reg.Register(&httpmock.Stub{
+		Method: "POST", URL: "/open-apis/spark/v1/apps/app_x/storage/file_upload_callback",
+		Body: map[string]interface{}{"code": 0, "data": map[string]interface{}{
+			"file_name": "report.pdf", "path": "/1858537546760999.pdf", "size_bytes": 8,
+		}},
+	})
+
+	if err := runAppsShortcut(t, AppsFileUpload,
+		[]string{"+file-upload", "--app-id", "app_x", "--file", absFile, "--as", "user"}, factory, stdout); err != nil {
+		t.Fatalf("execute with absolute path err=%v", err)
+	}
+	if string(putBody) != "PDFBYTES" {
+		t.Fatalf("PUT body = %q, want file bytes", putBody)
+	}
+}
+
+func TestAppsFileUpload_AcceptsParentRelativePathOutsideCWD(t *testing.T) {
+	var putBody []byte
+	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		putBody, _ = io.ReadAll(r.Body)
+		w.Header().Set("ETag", `"etag-parent"`)
+		w.WriteHeader(http.StatusOK)
+	}))
+	defer srv.Close()
+
+	root := t.TempDir()
+	workDir := filepath.Join(root, "work")
+	if err := os.Mkdir(workDir, 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(filepath.Join(root, "report.pdf"), []byte("PARENT"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	oldWD, _ := os.Getwd()
+	if err := os.Chdir(workDir); err != nil {
+		t.Fatal(err)
+	}
+	t.Cleanup(func() { _ = os.Chdir(oldWD) })
+
+	factory, stdout, reg := newAppsExecuteFactory(t)
+	reg.Register(&httpmock.Stub{
+		Method: "POST", URL: "/open-apis/spark/v1/apps/app_x/storage/file_pre_upload",
+		Body: map[string]interface{}{"code": 0, "data": map[string]interface{}{"upload_url": srv.URL, "upload_id": "up-parent"}},
+	})
+	reg.Register(&httpmock.Stub{
+		Method: "POST", URL: "/open-apis/spark/v1/apps/app_x/storage/file_upload_callback",
+		Body: map[string]interface{}{"code": 0, "data": map[string]interface{}{
+			"file_name": "report.pdf", "path": "/parent.pdf", "size_bytes": 6,
+		}},
+	})
+
+	if err := runAppsShortcut(t, AppsFileUpload,
+		[]string{"+file-upload", "--app-id", "app_x", "--file", filepath.Join("..", "report.pdf"), "--as", "user"}, factory, stdout); err != nil {
+		t.Fatalf("execute with parent-relative path err=%v", err)
+	}
+	if string(putBody) != "PARENT" {
+		t.Fatalf("PUT body = %q, want PARENT", putBody)
+	}
+}
+
+func TestAppsFileUpload_RejectsFileAboveLimit(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "too-large.bin")
+	f, err := os.Create(path)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if err := f.Truncate(fileUploadMaxBytes + 1); err != nil {
+		_ = f.Close()
+		t.Fatal(err)
+	}
+	if err := f.Close(); err != nil {
+		t.Fatal(err)
+	}
+
+	factory, stdout, _ := newAppsExecuteFactory(t)
+	err = runAppsShortcut(t, AppsFileUpload,
+		[]string{"+file-upload", "--app-id", "app_x", "--file", path, "--as", "user"}, factory, stdout)
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) || validationErr.Param != "--file" {
+		t.Fatalf("error = %T %v, want --file ValidationError", err, err)
+	}
+	if !strings.Contains(validationErr.Error(), "limit") {
+		t.Fatalf("error = %v, want size limit context", validationErr)
+	}
+}
+
+func TestAppsFileUpload_RejectsDeviceWithoutReadingIt(t *testing.T) {
+	if runtime.GOOS == "windows" {
+		t.Skip("/dev/zero is unavailable on Windows")
+	}
+	if _, err := os.Stat("/dev/zero"); err != nil {
+		t.Skipf("/dev/zero unavailable: %v", err)
+	}
+
+	factory, stdout, _ := newAppsExecuteFactory(t)
+	err := runAppsShortcut(t, AppsFileUpload,
+		[]string{"+file-upload", "--app-id", "app_x", "--file", "/dev/zero", "--as", "user"}, factory, stdout)
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) || validationErr.Param != "--file" {
+		t.Fatalf("error = %T %v, want --file ValidationError", err, err)
+	}
+	if !strings.Contains(validationErr.Error(), "regular file") {
+		t.Fatalf("error = %v, want non-regular-file context", validationErr)
+	}
+}
+
 // TestSanitizeUploadFileName_Cases 验证 sanitizeUploadFileName：空格转 %20、去 TOS 非法字符、全非法兜底、非 ASCII 百分号编码。
 func TestSanitizeUploadFileName_Cases(t *testing.T) {
 	cases := []struct{ in, want string }{

shortcuts/base/base_execute_test.go

@@ -2435,16 +2435,14 @@ func TestBaseRecordExecuteReadCreateDelete(t *testing.T) {
 			Body: map[string]interface{}{
 				"code": 0,
 				"data": map[string]interface{}{
-					"fields":         []interface{}{"Name"},
 					"record_id_list": []interface{}{"rec_1", "rec_2"},
-					"data":           []interface{}{[]interface{}{"Alice"}, []interface{}{"Bob"}},
 				},
 			},
 		})
-		if err := runShortcut(t, BaseRecordBatchCreate, []string{"+record-batch-create", "--base-token", "app_x", "--table-id", "tbl_x", "--json", `{"fields":["Name"],"rows":[["Alice"],["Bob"]]}`}, factory, stdout); err != nil {
+		if err := runShortcut(t, BaseRecordBatchCreate, []string{"+record-batch-create", "--base-token", "app_x", "--table-id", "tbl_x", "--json", `{"create_records":[{"Name":"Alice"},{"Name":"Bob"}]}`}, factory, stdout); err != nil {
 			t.Fatalf("err=%v", err)
 		}
-		if got := stdout.String(); !strings.Contains(got, `"record_id_list"`) || !strings.Contains(got, `"rec_1"`) || !strings.Contains(got, `"Alice"`) {
+		if got := stdout.String(); !strings.Contains(got, `"record_id_list"`) || !strings.Contains(got, `"rec_1"`) {
 			t.Fatalf("stdout=%s", got)
 		}
 	})

shortcuts/base/base_form_submit.go

@@ -26,7 +26,7 @@ var BaseFormSubmit = common.Shortcut{
 	Service:     "base",
 	Command:     "+form-submit",
 	Description: "Submit a form (fill and submit form data)",
-	Risk:        "write",
+	Risk:        "high-risk-write",
 	Scopes:      []string{"base:form:update", "docs:document.media:upload"},
 	AuthTypes:   authTypes(),
 	HasFormat:   true,
@@ -39,6 +39,7 @@ var BaseFormSubmit = common.Shortcut{
 		`Example (no attachments): --share-token shrXXXX --json '{"fields":{"Service Rating":5,"Review":"Good service"}}'`,
 		`Example (with attachments): --share-token shrXXXX --base-token basXXX --json '{"fields":{"Service Rating":5},"attachments":{"Attachment":["./report.pdf"]}}'`,
 		`Cell values in "fields" follow lark-base-cell-value.md conventions; "attachments" maps field names to local file path arrays — the CLI uploads them in parallel and merges them into the submission.`,
+		baseHighRiskYesTip,
 	},
 	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
 		return validateFormSubmit(runtime)

shortcuts/base/base_shortcuts_test.go

@@ -801,7 +801,8 @@ func TestBaseJSONExamplesLiveInFlagDescriptions(t *testing.T) {
 			name:     "record batch create json",
 			shortcut: BaseRecordBatchCreate,
 			wantHelp: []string{
-				`batch create JSON object, e.g. {"fields":["Name","Status"],"rows":[["Task A","Todo"],["Task B",null]]}; rows follow fields order`,
+				"create_records contains one field map per record",
+				`{"create_records":[{"Name":"Task A","Status":"Todo"},{"Name":"Task B","Score":20}]}`,
 			},
 		},
 		{
@@ -850,8 +851,8 @@ func TestBaseRecordWriteHelpGuidesAgents(t *testing.T) {
 				`{"Parent Link":[{"id":"rec_xxx"}]}`,
 				"do not look for parent_record_id or a separate child-record API",
 				"CellValue happy path: text/phone/url",
-				"select -> \"Todo\"",
-				"multi-select -> [\"Tag A\",\"Tag B\"]",
+				"select (multiple=false) -> \"Todo\"",
+				"select (multiple=true) -> [\"Tag A\",\"Tag B\"]",
 				"datetime -> \"2026-03-24 10:00:00\"",
 				"checkbox -> true/false",
 				`ID-based CellValue: user/group/link fields use arrays like [{"id":"ou_xxx"}]`,
@@ -865,11 +866,11 @@ func TestBaseRecordWriteHelpGuidesAgents(t *testing.T) {
 			name:     "record batch create",
 			shortcut: BaseRecordBatchCreate,
 			wantTips: []string{
-				"Happy path fields: fields is the column order",
-				"rows is an array of row arrays",
-				"may use null for empty cells",
+				"Happy path field: create_records",
+				"create_records is an array of independent record field maps",
+				`{"create_records":[{"Name":"Task A","Status":"Todo"},{"Name":"Task B","Score":20}]}`,
 				"use +field-list to confirm real writable fields",
-				"Batch create supports max 200 rows per call",
+				"Batch create supports max 200 records per call",
 				"do not immediately +record-list the same table",
 				"CellValue happy path: text/phone/url",
 				`ID-based CellValue: user/group/link fields use arrays like [{"id":"ou_xxx"}]`,
@@ -2055,8 +2056,8 @@ func TestBaseFormSubmitShortcut(t *testing.T) {
 		if s.Service != "base" {
 			t.Fatalf("Service=%q want base", s.Service)
 		}
-		if s.Risk != "write" {
-			t.Fatalf("Risk=%q want write", s.Risk)
+		if s.Risk != "high-risk-write" {
+			t.Fatalf("Risk=%q want high-risk-write", s.Risk)
 		}
 		if !s.HasFormat {
 			t.Fatal("HasFormat should be true")
@@ -2356,6 +2357,7 @@ func TestExecuteFormSubmit(t *testing.T) {
 			"+form-submit",
 			"--share-token", "shr_exec1",
 			"--json", `{"fields":{"Name":"Alice","Rating":5}}`,
+			"--yes",
 		}
 		if err := runShortcut(t, BaseFormSubmit, args, factory, stdout); err != nil {
 			t.Fatalf("err=%v", err)
@@ -2424,6 +2426,7 @@ func TestExecuteFormSubmit(t *testing.T) {
 			"--share-token", "shr_exec6",
 			"--base-token", "bas_exec6",
 			"--json", `{"attachments":{"File":["./nonexistent.pdf"]}}`,
+			"--yes",
 		}
 		err := runShortcut(t, BaseFormSubmit, args, factory, stdout)
 		if err == nil {
@@ -2472,6 +2475,7 @@ func TestExecuteFormSubmit(t *testing.T) {
 			"--share-token", "shr_dedup",
 			"--base-token", "bas_dedup",
 			"--json", `{"attachments":{"FieldA":["./shared.pdf"],"FieldB":["./shared.pdf"]}}`,
+			"--yes",
 		}
 		if err := runShortcut(t, BaseFormSubmit, args, factory, stdout); err != nil {
 			t.Fatalf("err=%v", err)
@@ -2483,6 +2487,33 @@ func TestExecuteFormSubmit(t *testing.T) {
 	})
 }
 
+// TestFormSubmitRequiresConfirmation pins the high-risk-write classification:
+// without --yes the runner's confirmation gate must fire before Execute runs,
+// returning a typed confirmation_required error and touching no API.
+func TestFormSubmitRequiresConfirmation(t *testing.T) {
+	if BaseFormSubmit.Risk != "high-risk-write" {
+		t.Fatalf("Risk=%q want high-risk-write", BaseFormSubmit.Risk)
+	}
+
+	factory, stdout, _ := newExecuteFactory(t)
+	args := []string{
+		"+form-submit",
+		"--share-token", "shr_confirm",
+		"--json", `{"fields":{"Rating":5}}`,
+	}
+	err := runShortcut(t, BaseFormSubmit, args, factory, stdout)
+	if err == nil {
+		t.Fatal("expected confirmation_required error without --yes")
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("expected typed error, got %T: %v", err, err)
+	}
+	if problem.Subtype != errs.SubtypeConfirmationRequired {
+		t.Fatalf("subtype=%q want %q", problem.Subtype, errs.SubtypeConfirmationRequired)
+	}
+}
+
 func TestUploadAttachmentsParallel(t *testing.T) {
 	t.Run("single file upload via execute path", func(t *testing.T) {
 		tmpDir := t.TempDir()
@@ -2519,6 +2550,7 @@ func TestUploadAttachmentsParallel(t *testing.T) {
 			"--share-token", "shr_para1",
 			"--base-token", "bas_para1",
 			"--json", `{"attachments":{"Doc":["./doc.txt"]}}`,
+			"--yes",
 		}
 		if err := runShortcut(t, BaseFormSubmit, args, factory, stdout); err != nil {
 			t.Fatalf("err=%v", err)
@@ -2553,6 +2585,7 @@ func TestUploadAttachmentsParallel(t *testing.T) {
 			"--share-token", "shr_err",
 			"--base-token", "bas_err",
 			"--json", `{"attachments":{"Bad":["./bad.txt"]}}`,
+			"--yes",
 		}
 		err := runShortcut(t, BaseFormSubmit, args, factory, stdout)
 		if err == nil {

shortcuts/base/field_search_options.go

@@ -27,7 +27,7 @@ var BaseFieldSearchOptions = common.Shortcut{
 	},
 	Tips: []string{
 		`Example: lark-cli base +field-search-options --base-token <base_token> --table-id <table_id> --field-id "Status" --keyword "Do"`,
-		"Use only for fields with options, such as select or multi-select fields.",
+		"Use only for select fields, whether multiple is false or true.",
 	},
 	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
 		if err := validateLimitPageSizeAlias(runtime); err != nil {

shortcuts/base/record_batch_create.go

@@ -19,12 +19,13 @@ var BaseRecordBatchCreate = common.Shortcut{
 	Flags: []common.Flag{
 		baseTokenFlag(true),
 		tableRefFlag(true),
-		{Name: "json", Desc: `batch create JSON object, e.g. {"fields":["Name","Status"],"rows":[["Task A","Todo"],["Task B",null]]}; rows follow fields order`, Required: true},
+		{Name: "json", Desc: `batch create JSON object; create_records contains one field map per record, e.g. {"create_records":[{"Name":"Task A","Status":"Todo"},{"Name":"Task B","Score":20}]}`, Required: true},
 	},
 	Tips: append([]string{
-		"Happy path fields: fields is the column order; rows is an array of row arrays; each row must match fields order and may use null for empty cells.",
+		"Happy path field: create_records is an array of independent record field maps.",
+		`Example: {"create_records":[{"Name":"Task A","Status":"Todo"},{"Name":"Task B","Score":20}]}.`,
 		"Before writing, use +field-list to confirm real writable fields; do not write system fields, formula, lookup, or attachment fields as normal CellValue.",
-		"Batch create supports max 200 rows per call.",
+		"Batch create supports max 200 records per call.",
 		"After batch-creating known helper rows, use the returned record IDs and your submitted rows; do not immediately +record-list the same table unless you need server-normalized formula/lookup values or failure diagnosis.",
 		"Use the record-batch-create guide for command limits and edge cases.",
 	}, recordCellValueHappyPathTips...),

shortcuts/base/record_ops.go

@@ -19,7 +19,7 @@ const maxBatchGetSelectFieldCount = 100
 const maxRecordSearchSelectFieldCount = 50
 
 var recordCellValueHappyPathTips = []string{
-	`CellValue happy path: text/phone/url -> "text"; number/currency/percent/rating -> 12.5; select -> "Todo"; multi-select -> ["Tag A","Tag B"]; datetime -> "2026-03-24 10:00:00"; checkbox -> true/false.`,
+	`CellValue happy path: text/phone/url -> "text"; number/currency/percent/rating -> 12.5; select (multiple=false) -> "Todo"; select (multiple=true) -> ["Tag A","Tag B"]; datetime -> "2026-03-24 10:00:00"; checkbox -> true/false.`,
 	`ID-based CellValue: user/group/link fields use arrays like [{"id":"ou_xxx"}], [{"id":"oc_xxx"}], [{"id":"rec_xxx"}]; location uses {"lng":116.397428,"lat":39.90923}; null clears a cell when allowed.`,
 	"Do not guess user/chat/linked-record IDs or location coordinates; resolve them first with the relevant contact/im/record lookup flow.",
 	"Use lark-base-cell-value.md for complex CellValue shapes and special field types; do not invent values for fields not covered by the happy path.",

shortcuts/common/localfile.go

@@ -0,0 +1,146 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package common
+
+import (
+	"errors"
+	"io"
+	"io/fs"
+	"math"
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/extension/fileio"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/validate"
+)
+
+// ValidateLocalFileFlag validates that a local input path exists, is a regular
+// file, and does not exceed maxBytes. Absolute and relative paths use
+// the process filesystem namespace.
+func (ctx *RuntimeContext) ValidateLocalFileFlag(flagName string, maxBytes int64) error {
+	path, param, err := ctx.localFileFlag(flagName, maxBytes)
+	if err != nil {
+		return err
+	}
+
+	info, err := cmdutil.StatLocalFile(path)
+	if err != nil {
+		return localFileReadError(param, path, "inspect", err)
+	}
+	if err := localFileRegularError(param, path, info.Mode()); err != nil {
+		return err
+	}
+	if info.Size() > maxBytes {
+		return localFileSizeError(param, path, info.Size(), maxBytes)
+	}
+	return nil
+}
+
+// ReadLocalFileFlag is the shared replacement for direct os.ReadFile calls in
+// shortcuts. It accepts absolute and relative paths, enforces a hard size
+// limit, and returns command-facing typed errors.
+func (ctx *RuntimeContext) ReadLocalFileFlag(flagName string, maxBytes int64) (data []byte, retErr error) {
+	path, param, err := ctx.localFileFlag(flagName, maxBytes)
+	if err != nil {
+		return nil, err
+	}
+	f, err := cmdutil.OpenLocalFile(path)
+	if err != nil {
+		return nil, localFileReadError(param, path, "open", err)
+	}
+	defer func() {
+		if err := f.Close(); err != nil && retErr == nil {
+			data = nil
+			retErr = errs.NewInternalError(errs.SubtypeFileIO, "cannot close %s %q: %v", param, path, err).WithCause(err)
+		}
+	}()
+
+	openedInfo, err := f.Stat()
+	if err != nil {
+		return nil, localFileReadError(param, path, "inspect opened", err)
+	}
+	if err := localFileRegularError(param, path, openedInfo.Mode()); err != nil {
+		return nil, err
+	}
+	if openedInfo.Size() > maxBytes {
+		return nil, localFileSizeError(param, path, openedInfo.Size(), maxBytes)
+	}
+
+	readLimit := maxBytes + 1
+	if maxBytes == math.MaxInt64 {
+		readLimit = maxBytes
+	}
+	data, err = io.ReadAll(io.LimitReader(f, readLimit))
+	if err != nil {
+		return nil, localFileReadError(param, path, "read", err)
+	}
+	if int64(len(data)) > maxBytes {
+		return nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"%s %q grew beyond the %d-byte limit while being read", param, path, maxBytes).
+			WithParam(param)
+	}
+	return data, nil
+}
+
+func (ctx *RuntimeContext) localFileFlag(flagName string, maxBytes int64) (path, param string, err error) {
+	name, param, err := localFileFlagNames(flagName)
+	if err != nil {
+		return "", "", err
+	}
+	if ctx == nil || ctx.Cmd == nil {
+		return "", param, errs.NewInternalError(errs.SubtypeUnknown, "cannot read %s: runtime command is unavailable", param)
+	}
+
+	path = strings.TrimSpace(ctx.Str(name))
+	if path == "" {
+		return "", param, errs.NewValidationError(errs.SubtypeInvalidArgument, "%s is required", param).WithParam(param)
+	}
+	if _, err := validate.LocalInputPath(path); err != nil {
+		return "", param, errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid %s path: %v", param, err).
+			WithParam(param).
+			WithCause(err)
+	}
+	if maxBytes < 0 {
+		return "", param, errs.NewInternalError(errs.SubtypeUnknown, "invalid read limit configured for %s", param)
+	}
+	return path, param, nil
+}
+
+func localFileRegularError(param, path string, mode fs.FileMode) error {
+	if mode.IsRegular() {
+		return nil
+	}
+	return errs.NewValidationError(errs.SubtypeInvalidArgument,
+		"%s %q is not a regular file", param, path).
+		WithParam(param)
+}
+
+func localFileReadError(param, path, op string, cause error) error {
+	if errors.Is(cause, fileio.ErrPathValidation) {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "invalid %s %q: %v", param, path, cause).
+			WithParam(param).
+			WithCause(cause)
+	}
+	if errors.Is(cause, fs.ErrNotExist) {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s %q does not exist", param, path).
+			WithParam(param).
+			WithCause(cause)
+	}
+	return errs.NewInternalError(errs.SubtypeFileIO, "cannot %s %s %q: %v", op, param, path, cause).WithCause(cause)
+}
+
+func localFileSizeError(param, path string, size, limit int64) error {
+	return errs.NewValidationError(errs.SubtypeInvalidArgument,
+		"%s %q is %d bytes; limit is %d bytes", param, path, size, limit).
+		WithParam(param)
+}
+
+func localFileFlagNames(flagName string) (name, param string, err error) {
+	name = strings.TrimLeft(strings.TrimSpace(flagName), "-")
+	if name == "" {
+		return "", "", errs.NewInternalError(errs.SubtypeUnknown, "local file flag name must not be empty")
+	}
+	return name, "--" + name, nil
+}

shortcuts/common/localfile_test.go

@@ -0,0 +1,95 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package common
+
+import (
+	"context"
+	"errors"
+	"os"
+	"path/filepath"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/spf13/cobra"
+)
+
+func TestReadLocalFileFlag_AcceptsAbsolutePath(t *testing.T) {
+	path := filepath.Join(t.TempDir(), "input.txt")
+	if err := os.WriteFile(path, []byte("content"), 0o600); err != nil {
+		t.Fatal(err)
+	}
+	rctx := localFileTestRuntime(t, path)
+
+	if err := rctx.ValidateLocalFileFlag("file", 7); err != nil {
+		t.Fatalf("ValidateLocalFileFlag() error = %v", err)
+	}
+	got, err := rctx.ReadLocalFileFlag("file", 7)
+	if err != nil || string(got) != "content" {
+		t.Fatalf("ReadLocalFileFlag() = %q, %v; want content", got, err)
+	}
+}
+
+func TestValidateLocalFileFlag_ReturnsTypedInputErrors(t *testing.T) {
+	for _, tc := range []struct {
+		name string
+		path func(t *testing.T) string
+		max  int64
+	}{
+		{name: "invalid characters", path: func(*testing.T) string { return "input\n.txt" }, max: 10},
+		{name: "missing file", path: func(t *testing.T) string { return filepath.Join(t.TempDir(), "missing") }, max: 10},
+		{name: "directory", path: func(t *testing.T) string { return t.TempDir() }, max: 10},
+		{name: "too large", path: func(t *testing.T) string {
+			path := filepath.Join(t.TempDir(), "large")
+			if err := os.WriteFile(path, []byte("123456"), 0o600); err != nil {
+				t.Fatal(err)
+			}
+			return path
+		}, max: 5},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			err := localFileTestRuntime(t, tc.path(t)).ValidateLocalFileFlag("file", tc.max)
+			var validationErr *errs.ValidationError
+			if !errors.As(err, &validationErr) || validationErr.Subtype != errs.SubtypeInvalidArgument || validationErr.Param != "--file" {
+				t.Fatalf("error = %T %v, want invalid_argument for --file", err, err)
+			}
+		})
+	}
+}
+
+func TestReadLocalFileFlag_ReturnsTypedInputErrors(t *testing.T) {
+	for _, tc := range []struct {
+		name string
+		path func(t *testing.T) string
+		max  int64
+	}{
+		{name: "invalid characters", path: func(*testing.T) string { return "input\n.txt" }, max: 10},
+		{name: "missing file", path: func(t *testing.T) string { return filepath.Join(t.TempDir(), "missing") }, max: 10},
+		{name: "directory", path: func(t *testing.T) string { return t.TempDir() }, max: 10},
+		{name: "too large", path: func(t *testing.T) string {
+			path := filepath.Join(t.TempDir(), "large")
+			if err := os.WriteFile(path, []byte("123456"), 0o600); err != nil {
+				t.Fatal(err)
+			}
+			return path
+		}, max: 5},
+	} {
+		t.Run(tc.name, func(t *testing.T) {
+			_, err := localFileTestRuntime(t, tc.path(t)).ReadLocalFileFlag("file", tc.max)
+			var validationErr *errs.ValidationError
+			if !errors.As(err, &validationErr) || validationErr.Subtype != errs.SubtypeInvalidArgument || validationErr.Param != "--file" {
+				t.Fatalf("error = %T %v, want invalid_argument for --file", err, err)
+			}
+		})
+	}
+}
+
+func localFileTestRuntime(t *testing.T, path string) *RuntimeContext {
+	t.Helper()
+	cmd := &cobra.Command{Use: "test"}
+	cmd.Flags().String("file", "", "")
+	if err := cmd.Flags().Set("file", path); err != nil {
+		t.Fatal(err)
+	}
+	return &RuntimeContext{ctx: context.Background(), Cmd: cmd}
+}

shortcuts/doc/doc_errors_test.go

@@ -356,26 +356,11 @@ func TestValidateUpdateV2Contract(t *testing.T) {
 			str:       map[string]string{"doc": testDocxToken, "command": "str_replace"},
 			wantParam: "--pattern",
 		},
-		{
-			name:      "XML str_replace rejects multiline pattern",
-			str:       map[string]string{"doc": testDocxToken, "command": "str_replace", "doc-format": "xml", "pattern": "line one\nline two", "content": "replacement"},
-			wantParam: "--pattern",
-		},
 		{
 			name:      "block_delete without block id",
 			str:       map[string]string{"doc": testDocxToken, "command": "block_delete"},
 			wantParam: "--block-id",
 		},
-		{
-			name:      "block_delete rejects empty ID",
-			str:       map[string]string{"doc": testDocxToken, "command": "block_delete", "block-id": "blkA,,blkB"},
-			wantParam: "--block-id",
-		},
-		{
-			name:      "block_delete rejects duplicate ID",
-			str:       map[string]string{"doc": testDocxToken, "command": "block_delete", "block-id": "blkA, blkA"},
-			wantParam: "--block-id",
-		},
 		{
 			name:      "block_insert_after without block id",
 			str:       map[string]string{"doc": testDocxToken, "command": "block_insert_after"},

shortcuts/doc/docs_create_test.go

@@ -17,46 +17,6 @@ import (
 
 // ── V2 (OpenAPI) tests ──
 
-func TestStripTopLevelXMLTitles(t *testing.T) {
-	t.Parallel()
-
-	tests := []struct {
-		name    string
-		content string
-		want    string
-	}{
-		{
-			name:    "single title",
-			content: "<title>Content title</title><p>body</p>",
-			want:    "<p>body</p>",
-		},
-		{
-			name:    "multiple titles",
-			content: "<title>First</title>\n<p>body</p>\n<title>Second</title>",
-			want:    "<p>body</p>",
-		},
-		{
-			name:    "nested title is preserved",
-			content: "<callout><title>Nested</title></callout><p>body</p>",
-			want:    "<callout><title>Nested</title></callout><p>body</p>",
-		},
-		{
-			name:    "malformed XML is preserved",
-			content: "<title>Content title</title><p>A & B</p>",
-			want:    "<title>Content title</title><p>A & B</p>",
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			t.Parallel()
-			if got := stripTopLevelXMLTitles(tt.content); got != tt.want {
-				t.Fatalf("stripTopLevelXMLTitles() = %q, want %q", got, tt.want)
-			}
-		})
-	}
-}
-
 func TestDocsCreateV2BotAutoGrantSuccess(t *testing.T) {
 	t.Parallel()
 

shortcuts/doc/docs_create_v2.go

@@ -7,8 +7,6 @@ import (
 	"bytes"
 	"context"
 	"encoding/xml"
-	"errors"
-	"io"
 	"strings"
 
 	"github.com/larksuite/cli/errs"
@@ -18,7 +16,7 @@ import (
 // v2CreateFlags returns the flag definitions for the v2 (OpenAPI) create path.
 func v2CreateFlags() []common.Flag {
 	return []common.Flag{
-		{Name: "title", Desc: "document title; the CLI prepends it to --content as <title>...</title>. In XML mode, top-level <title> elements in --content are removed so this flag wins without duplicate-title warnings"},
+		{Name: "title", Desc: "document title; when provided, the CLI prepends it to --content as <title>...</title> so the title wins over later content titles"},
 		{Name: "content", Desc: "document body; XML by default or Markdown when --doc-format markdown. " + docsContentSkillHelp + "; use --help for the latest command flags", Input: []string{common.File, common.Stdin}},
 		{Name: "reference-map", Desc: docsReferenceMapFlagDesc, Input: []string{common.File, common.Stdin}},
 		{Name: "doc-format", Desc: "content format; xml is default and supports richer DocxXML blocks, markdown imports plain Markdown", Default: "xml", Enum: []string{"xml", "markdown"}},
@@ -110,9 +108,6 @@ func buildCreateContentWithBody(runtime *common.RuntimeContext, content string)
 	if title == "" {
 		return content
 	}
-	if runtime.Str("doc-format") == "xml" {
-		content = stripTopLevelXMLTitles(content)
-	}
 
 	titleTag := "<title>" + escapeDocTitleText(title) + "</title>"
 	if content == "" {
@@ -121,62 +116,6 @@ func buildCreateContentWithBody(runtime *common.RuntimeContext, content string)
 	return titleTag + "\n" + content
 }
 
-type docContentRange struct {
-	start int64
-	end   int64
-}
-
-// stripTopLevelXMLTitles preserves the established --title-wins contract while
-// avoiding duplicate-title warnings from XML content. If the fragment is not
-// well-formed XML, it is left untouched for the service to diagnose.
-func stripTopLevelXMLTitles(content string) string {
-	const wrapperStart = "<root>"
-	wrapped := wrapperStart + content + "</root>"
-	decoder := xml.NewDecoder(strings.NewReader(wrapped))
-	wrapperLen := int64(len(wrapperStart))
-	depth := 0
-	activeStart := int64(-1)
-	ranges := make([]docContentRange, 0, 1)
-
-	for {
-		tokenStart := decoder.InputOffset()
-		token, err := decoder.Token()
-		if errors.Is(err, io.EOF) {
-			break
-		}
-		if err != nil {
-			return content
-		}
-
-		switch value := token.(type) {
-		case xml.StartElement:
-			if depth == 1 && value.Name.Space == "" && value.Name.Local == "title" {
-				activeStart = tokenStart - wrapperLen
-			}
-			depth++
-		case xml.EndElement:
-			depth--
-			if activeStart >= 0 && depth == 1 && value.Name.Space == "" && value.Name.Local == "title" {
-				ranges = append(ranges, docContentRange{start: activeStart, end: decoder.InputOffset() - wrapperLen})
-				activeStart = -1
-			}
-		}
-	}
-
-	if len(ranges) == 0 {
-		return content
-	}
-
-	var result strings.Builder
-	cursor := int64(0)
-	for _, item := range ranges {
-		result.WriteString(content[int(cursor):int(item.start)])
-		cursor = item.end
-	}
-	result.WriteString(content[int(cursor):])
-	return strings.TrimSpace(result.String())
-}
-
 func escapeDocTitleText(title string) string {
 	var buf bytes.Buffer
 	_ = xml.EscapeText(&buf, []byte(title))

shortcuts/doc/docs_update_v2.go

@@ -35,8 +35,8 @@ func v2UpdateFlags() []common.Flag {
 		{Name: "doc-format", Desc: "content format for --content; xml is default for precise rich edits, markdown for user-provided Markdown or plain append/overwrite", Default: "xml", Enum: []string{"xml", "markdown"}},
 		{Name: "content", Desc: "replacement or inserted content; XML by default or Markdown when --doc-format markdown; empty with str_replace deletes match. " + docsContentSkillHelp + "; use --help for the latest command flags", Input: []string{common.File, common.Stdin}},
 		{Name: "reference-map", Desc: docsUpdateReferenceMapFlagDesc, Input: []string{common.File, common.Stdin}},
-		{Name: "pattern", Desc: "str_replace match pattern; XML mode accepts inline text only, Markdown mode can match multiline text"},
-		{Name: "block-id", Desc: "target block ID(s) for block operations (comma-separated unique IDs for batch delete); -1 means document end where supported"},
+		{Name: "pattern", Desc: "str_replace match pattern; XML mode is inline text, Markdown mode can match multiline text"},
+		{Name: "block-id", Desc: "target block ID(s) for block operations (comma-separated for batch delete); -1 means document end where supported"},
 		{Name: "src-block-ids", Desc: "comma-separated source block ids for block_copy_insert_after and block_move_after"},
 		{Name: "revision-id", Desc: "base revision id; -1 means latest", Type: "int", Default: "-1"},
 	}
@@ -73,16 +73,10 @@ func validateUpdateV2(_ context.Context, runtime *common.RuntimeContext) error {
 		if pattern == "" {
 			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--command str_replace requires --pattern").WithParam("--pattern")
 		}
-		if runtime.Str("doc-format") == "xml" && strings.ContainsAny(pattern, "\r\n") {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "XML str_replace --pattern must be inline and cannot contain line breaks; use --doc-format markdown or a block operation for multiline changes").WithParam("--pattern")
-		}
 	case "block_delete":
 		if blockID == "" {
 			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--command block_delete requires --block-id").WithParam("--block-id")
 		}
-		if err := validateBlockDeleteIDs(blockID); err != nil {
-			return err
-		}
 	case "block_insert_after":
 		if blockID == "" {
 			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--command block_insert_after requires --block-id").WithParam("--block-id")
@@ -130,29 +124,6 @@ func validateUpdateV2(_ context.Context, runtime *common.RuntimeContext) error {
 	return nil
 }
 
-func validateBlockDeleteIDs(raw string) error {
-	seen := make(map[string]struct{})
-	for _, part := range strings.Split(raw, ",") {
-		blockID := strings.TrimSpace(part)
-		if blockID == "" {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--block-id contains an empty ID; provide a comma-separated list of non-empty block IDs").WithParam("--block-id")
-		}
-		if _, ok := seen[blockID]; ok {
-			return errs.NewValidationError(errs.SubtypeInvalidArgument, "--block-id contains duplicate ID %q; each block may be deleted only once per request", blockID).WithParam("--block-id")
-		}
-		seen[blockID] = struct{}{}
-	}
-	return nil
-}
-
-func normalizeBlockDeleteIDs(raw string) string {
-	parts := strings.Split(raw, ",")
-	for i := range parts {
-		parts[i] = strings.TrimSpace(parts[i])
-	}
-	return strings.Join(parts, ",")
-}
-
 func dryRunUpdateV2(_ context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
 	// Validate has already accepted --doc; parseDocumentRef cannot fail here.
 	ref, _ := parseDocumentRef(runtime.Str("doc"))
@@ -228,9 +199,6 @@ func buildUpdateBodyBase(runtime *common.RuntimeContext) map[string]interface{}
 		body["pattern"] = v
 	}
 	if blockID != "" {
-		if cmd == "block_delete" {
-			blockID = normalizeBlockDeleteIDs(blockID)
-		}
 		body["block_id"] = blockID
 	}
 	if v := runtime.Str("src-block-ids"); v != "" {

shortcuts/slides/shortcuts.go

@@ -3,11 +3,24 @@
 
 package slides
 
-import "github.com/larksuite/cli/shortcuts/common"
+import (
+	"github.com/larksuite/cli/shortcuts/common"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+var presentationFlagAliases = []string{
+	"presentation-id",
+	"presentation-token",
+	"token",
+	"presentation_id",
+	"xml-presentation-id",
+	"url",
+}
 
 // Shortcuts returns all slides shortcuts.
 func Shortcuts() []common.Shortcut {
-	return []common.Shortcut{
+	all := []common.Shortcut{
 		SlidesCreate,
 		SlidesMediaUpload,
 		SlidesReplaceSlide,
@@ -18,4 +31,39 @@ func Shortcuts() []common.Shortcut {
 		SlidesHistoryRevert,
 		SlidesHistoryRevertStatus,
 	}
+	for i := range all {
+		if hasPresentationFlag(all[i].Flags) {
+			all[i].PostMount = withPresentationFlagAliases(all[i].PostMount)
+		}
+	}
+	return all
+}
+
+func hasPresentationFlag(flags []common.Flag) bool {
+	for _, flag := range flags {
+		if flag.Name == "presentation" {
+			return true
+		}
+	}
+	return false
+}
+
+// withPresentationFlagAliases accepts common agent-generated spellings for
+// --presentation without registering extra flags. The aliases therefore stay
+// out of help and completion while resolving to the canonical flag at parse
+// time, matching the zero-round-trip compatibility used by Sheets.
+func withPresentationFlagAliases(prev func(cmd *cobra.Command)) func(cmd *cobra.Command) {
+	return func(cmd *cobra.Command) {
+		if prev != nil {
+			prev(cmd)
+		}
+		cmd.Flags().SetNormalizeFunc(func(_ *pflag.FlagSet, name string) pflag.NormalizedName {
+			for _, alias := range presentationFlagAliases {
+				if name == alias {
+					return pflag.NormalizedName("presentation")
+				}
+			}
+			return pflag.NormalizedName(name)
+		})
+	}
 }

shortcuts/slides/shortcuts_alias_test.go

@@ -0,0 +1,68 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package slides
+
+import (
+	"strings"
+	"testing"
+
+	"github.com/spf13/cobra"
+)
+
+func TestWithPresentationFlagAliases(t *testing.T) {
+	for _, alias := range presentationFlagAliases {
+		t.Run(alias, func(t *testing.T) {
+			cmd := &cobra.Command{Use: "test"}
+			cmd.Flags().String("presentation", "", "presentation reference")
+			withPresentationFlagAliases(nil)(cmd)
+
+			if err := cmd.Flags().Parse([]string{"--" + alias, "presABC"}); err != nil {
+				t.Fatalf("--%s should resolve to --presentation: %v", alias, err)
+			}
+			got, err := cmd.Flags().GetString("presentation")
+			if err != nil {
+				t.Fatalf("read --presentation: %v", err)
+			}
+			if got != "presABC" {
+				t.Fatalf("--%s set --presentation to %q, want presABC", alias, got)
+			}
+			if usage := cmd.Flags().FlagUsages(); strings.Contains(usage, "--"+alias) {
+				t.Fatalf("hidden compatibility alias --%s leaked into help:\n%s", alias, usage)
+			}
+		})
+	}
+}
+
+func TestShortcutsAttachPresentationFlagAliases(t *testing.T) {
+	count := 0
+	for _, shortcut := range Shortcuts() {
+		if !hasPresentationFlag(shortcut.Flags) {
+			continue
+		}
+		count++
+		if shortcut.PostMount == nil {
+			t.Errorf("%s has --presentation but no compatibility normalizer", shortcut.Command)
+			continue
+		}
+
+		cmd := &cobra.Command{Use: shortcut.Command}
+		cmd.Flags().String("presentation", "", "presentation reference")
+		shortcut.PostMount(cmd)
+		if err := cmd.Flags().Parse([]string{"--token", "presABC"}); err != nil {
+			t.Errorf("%s did not normalize --token: %v", shortcut.Command, err)
+			continue
+		}
+		got, err := cmd.Flags().GetString("presentation")
+		if err != nil {
+			t.Errorf("%s could not read --presentation: %v", shortcut.Command, err)
+			continue
+		}
+		if got != "presABC" {
+			t.Errorf("%s normalized --token to %q, want presABC", shortcut.Command, got)
+		}
+	}
+	if count == 0 {
+		t.Fatal("expected at least one slides shortcut with --presentation")
+	}
+}

shortcuts/slides/slides_screenshot.go

@@ -37,15 +37,13 @@ var SlidesScreenshot = common.Shortcut{
 	Command:     "+screenshot",
 	Description: "Save up to 10 slide screenshots to local files without printing Base64 image data",
 	Risk:        "read",
-	Scopes:      []string{},
-	// The screenshot API is allowlist-gated for only a few apps, so do not
-	// advertise/preflight its scope. Let the API fail and let callers degrade.
+	Scopes:      []string{"slides:presentation:screenshot"},
 	// wiki:node:read is required only when --presentation is a wiki URL.
 	ConditionalScopes: []string{"wiki:node:read"},
 	AuthTypes:         []string{"user", "bot"},
 	Flags: []common.Flag{
 		{Name: "presentation", Desc: "xml_presentation_id, slides URL, or wiki URL that resolves to slides; list mode only"},
-		{Name: "slide-id", Type: "string_array", Desc: "slide page identifier (repeat for multiple slides; max 10 pages per request)"},
+		{Name: "slide-id", Type: "string_slice", Desc: "slide page identifier (repeat or comma-separated for multiple slides; max 10 pages per request)"},
 		{Name: "slide-number", Type: "int_array", Desc: "slide page number (repeat for multiple slides; max 10 pages per request)"},
 		{Name: "content", Desc: "slide XML content to render directly instead of fetching existing slides", Input: []string{common.File, common.Stdin}},
 		{Name: "output-dir", Default: defaultSlidesScreenshotDir, Desc: "relative directory for saved screenshots"},
@@ -57,7 +55,7 @@ var SlidesScreenshot = common.Shortcut{
 			if strings.TrimSpace(runtime.Str("content")) == "" {
 				return slidesScreenshotFlagErrorf("--content cannot be empty")
 			}
-			if len(normalizeSlideIDs(runtime.StrArray("slide-id"))) > 0 || len(runtime.IntArray("slide-number")) > 0 {
+			if len(normalizeSlideIDs(runtime.StrSlice("slide-id"))) > 0 || len(runtime.IntArray("slide-number")) > 0 {
 				return slidesScreenshotFlagErrorf("--content cannot be used with --slide-id or --slide-number")
 			}
 			if runtime.Changed("presentation") {
@@ -73,7 +71,7 @@ var SlidesScreenshot = common.Shortcut{
 					return err
 				}
 			}
-			slideIDs := normalizeSlideIDs(runtime.StrArray("slide-id"))
+			slideIDs := normalizeSlideIDs(runtime.StrSlice("slide-id"))
 			slideNumbers, err := normalizeSlideNumbers(runtime.IntArray("slide-number"))
 			if err != nil {
 				return err
@@ -98,7 +96,7 @@ var SlidesScreenshot = common.Shortcut{
 		if err != nil {
 			return common.NewDryRunAPI().Set("error", err.Error())
 		}
-		slideIDs := normalizeSlideIDs(runtime.StrArray("slide-id"))
+		slideIDs := normalizeSlideIDs(runtime.StrSlice("slide-id"))
 		slideNumbers, err := normalizeSlideNumbers(runtime.IntArray("slide-number"))
 		if err != nil {
 			return common.NewDryRunAPI().Set("error", err.Error())
@@ -148,7 +146,7 @@ var SlidesScreenshot = common.Shortcut{
 			return err
 		}
 
-		slideIDs := normalizeSlideIDs(runtime.StrArray("slide-id"))
+		slideIDs := normalizeSlideIDs(runtime.StrSlice("slide-id"))
 		slideNumbers, err := normalizeSlideNumbers(runtime.IntArray("slide-number"))
 		if err != nil {
 			return err
@@ -200,7 +198,7 @@ func dryRunRenderScreenshot(runtime *common.RuntimeContext) *common.DryRunAPI {
 	if strings.TrimSpace(content) == "" {
 		return common.NewDryRunAPI().Set("error", "--content cannot be empty")
 	}
-	if len(normalizeSlideIDs(runtime.StrArray("slide-id"))) > 0 || len(runtime.IntArray("slide-number")) > 0 {
+	if len(normalizeSlideIDs(runtime.StrSlice("slide-id"))) > 0 || len(runtime.IntArray("slide-number")) > 0 {
 		return common.NewDryRunAPI().Set("error", "--content cannot be used with --slide-id or --slide-number")
 	}
 	if runtime.Changed("presentation") {
@@ -219,7 +217,7 @@ func executeRenderScreenshot(runtime *common.RuntimeContext) error {
 	if strings.TrimSpace(content) == "" {
 		return slidesScreenshotFlagErrorf("--content cannot be empty")
 	}
-	if len(normalizeSlideIDs(runtime.StrArray("slide-id"))) > 0 || len(runtime.IntArray("slide-number")) > 0 {
+	if len(normalizeSlideIDs(runtime.StrSlice("slide-id"))) > 0 || len(runtime.IntArray("slide-number")) > 0 {
 		return slidesScreenshotFlagErrorf("--content cannot be used with --slide-id or --slide-number")
 	}
 	if runtime.Changed("presentation") {

shortcuts/slides/slides_screenshot_test.go

@@ -8,6 +8,7 @@ import (
 	"encoding/json"
 	"os"
 	"path/filepath"
+	"reflect"
 	"strings"
 	"testing"
 
@@ -17,23 +18,19 @@ import (
 )
 
 func TestSlidesScreenshotDeclaredScopes(t *testing.T) {
-	if got := SlidesScreenshot.ScopesForIdentity("user"); len(got) != 0 {
-		t.Fatalf("user preflight scopes = %#v, want empty", got)
+	base := []string{"slides:presentation:screenshot"}
+	if got := SlidesScreenshot.ScopesForIdentity("user"); !reflect.DeepEqual(got, base) {
+		t.Fatalf("user preflight scopes = %#v, want %#v", got, base)
 	}
-	if got := SlidesScreenshot.ScopesForIdentity("bot"); len(got) != 0 {
-		t.Fatalf("bot preflight scopes = %#v, want empty", got)
+	if got := SlidesScreenshot.ScopesForIdentity("bot"); !reflect.DeepEqual(got, base) {
+		t.Fatalf("bot preflight scopes = %#v, want %#v", got, base)
 	}
 
 	got := SlidesScreenshot.DeclaredScopesForIdentity("user")
-	want := []string{"wiki:node:read"}
-	if len(got) != len(want) || got[0] != want[0] {
+	want := []string{"slides:presentation:screenshot", "wiki:node:read"}
+	if !reflect.DeepEqual(got, want) {
 		t.Fatalf("declared scopes = %#v, want %#v", got, want)
 	}
-	for _, scope := range got {
-		if scope == "slides:presentation:screenshot" {
-			t.Fatalf("declared scopes must not advertise screenshot scope: %#v", got)
-		}
-	}
 }
 
 func TestSlidesScreenshotWritesFilesAndSuppressesBase64(t *testing.T) {
@@ -188,6 +185,139 @@ func TestSlidesScreenshotListBySlideNumber(t *testing.T) {
 	}
 }
 
+func TestSlidesScreenshotListBySlideIDCSV(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	stub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_abc/slide_images",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"slide_images": []map[string]interface{}{
+					{
+						"slide_id": "slide_1",
+						"format":   1,
+						"data":     base64.StdEncoding.EncodeToString([]byte("png-bytes-1")),
+					},
+					{
+						"slide_id": "slide_2",
+						"format":   1,
+						"data":     base64.StdEncoding.EncodeToString([]byte("png-bytes-2")),
+					},
+				},
+			},
+		},
+	}
+	reg.Register(stub)
+
+	err := runSlidesShortcut(t, f, stdout, SlidesScreenshot, []string{
+		"+screenshot",
+		"--presentation", "pres_abc",
+		"--slide-id", "slide_1,slide_2",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var body struct {
+		SlideIDs []string `json:"slide_ids"`
+	}
+	if err := json.Unmarshal(stub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode request body: %v", err)
+	}
+	if len(body.SlideIDs) != 2 || body.SlideIDs[0] != "slide_1" || body.SlideIDs[1] != "slide_2" {
+		t.Fatalf("slide_ids = %#v, want [slide_1 slide_2]", body.SlideIDs)
+	}
+
+	path1 := filepath.Join(dir, defaultSlidesScreenshotDir, "pres_abc_slide_1.png")
+	if _, err := os.ReadFile(path1); err != nil {
+		t.Fatalf("read first CSV slide screenshot: %v", err)
+	}
+	path2 := filepath.Join(dir, defaultSlidesScreenshotDir, "pres_abc_slide_2.png")
+	if _, err := os.ReadFile(path2); err != nil {
+		t.Fatalf("read second CSV slide screenshot: %v", err)
+	}
+}
+
+func TestSlidesScreenshotListBySlideIDCSVDeduplicatesAndTrims(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	dir := t.TempDir()
+	withSlidesTestWorkingDir(t, dir)
+
+	f, stdout, _, reg := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+	stub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/slides_ai/v1/xml_presentations/pres_abc/slide_images",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"slide_images": []map[string]interface{}{
+					{
+						"slide_id": "slide_1",
+						"format":   1,
+						"data":     base64.StdEncoding.EncodeToString([]byte("png-bytes-1")),
+					},
+					{
+						"slide_id": "slide_2",
+						"format":   1,
+						"data":     base64.StdEncoding.EncodeToString([]byte("png-bytes-2")),
+					},
+				},
+			},
+		},
+	}
+	reg.Register(stub)
+
+	// CSV with a duplicate and blank segments should normalize the same way
+	// normalizeSlideIDs already does for repeated --slide-id flags.
+	err := runSlidesShortcut(t, f, stdout, SlidesScreenshot, []string{
+		"+screenshot",
+		"--presentation", "pres_abc",
+		"--slide-id", "slide_1, slide_2,slide_1,",
+		"--as", "user",
+	})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	var body struct {
+		SlideIDs []string `json:"slide_ids"`
+	}
+	if err := json.Unmarshal(stub.CapturedBody, &body); err != nil {
+		t.Fatalf("decode request body: %v", err)
+	}
+	if len(body.SlideIDs) != 2 || body.SlideIDs[0] != "slide_1" || body.SlideIDs[1] != "slide_2" {
+		t.Fatalf("slide_ids = %#v, want deduplicated [slide_1 slide_2]", body.SlideIDs)
+	}
+}
+
+func TestSlidesScreenshotListRejectsMoreThanTenSlideIDsCSV(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+
+	err := runSlidesShortcut(t, f, stdout, SlidesScreenshot, []string{
+		"+screenshot",
+		"--presentation", "pres_abc",
+		"--slide-id", "s1,s2,s3,s4,s5,s6,s7,s8,s9,s10,s11",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected error")
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("error = %v, want typed validation error", err)
+	}
+	if problem.Hint != "request at most 10 pages at a time" {
+		t.Fatalf("hint = %q, want max 10 pages guidance", problem.Hint)
+	}
+}
+
 func TestSlidesScreenshotAvoidsOverwritingExistingFile(t *testing.T) {
 	dir := t.TempDir()
 	withSlidesTestWorkingDir(t, dir)
@@ -390,6 +520,27 @@ func TestSlidesScreenshotRenderRejectsSlideSelectors(t *testing.T) {
 	}
 }
 
+func TestSlidesScreenshotRenderRejectsSlideNumberSelector(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
+
+	// Exercises the --slide-number-only side of the --content conflict check
+	// (TestSlidesScreenshotRenderRejectsSlideSelectors above only covers the
+	// --slide-id side of that same `||` condition).
+	err := runSlidesShortcut(t, f, stdout, SlidesScreenshot, []string{
+		"+screenshot",
+		"--content", `<slide xmlns="http://www.larkoffice.com/sml/2.0"><data></data></slide>`,
+		"--slide-number", "1",
+		"--as", "user",
+	})
+	if err == nil {
+		t.Fatal("expected error")
+	}
+	if !strings.Contains(err.Error(), "--content cannot be used with --slide-id or --slide-number") {
+		t.Fatalf("error = %v, want content/slide selector conflict", err)
+	}
+}
+
 func TestSlidesScreenshotRenderRejectsListOnlyFlags(t *testing.T) {
 	f, stdout, _, _ := cmdutil.TestFactory(t, slidesTestConfig(t, ""))
 

shortcuts/task/shortcuts.go

@@ -10,6 +10,7 @@ import (
 	"io"
 	"net/http"
 	"net/url"
+	"regexp"
 	"strings"
 	"time"
 
@@ -100,6 +101,40 @@ func extractTaskGuid(input string) string {
 	return extractTasklistGuid(input)
 }
 
+var taskDisplayNumberPattern = regexp.MustCompile(`^t[0-9]+$`)
+
+func parseTaskGUID(input string) (string, error) {
+	input = strings.TrimSpace(input)
+	invalid := func(format string, args ...interface{}) *errs.ValidationError {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument, format, args...).
+			WithParam("--task-id").
+			WithHint("provide the Task OpenAPI GUID or a task applink containing guid=")
+	}
+
+	if input == "" {
+		return "", invalid("task ID is empty")
+	}
+
+	lowerInput := strings.ToLower(input)
+	if strings.HasPrefix(lowerInput, "http://") || strings.HasPrefix(lowerInput, "https://") {
+		u, err := url.Parse(input)
+		if err != nil {
+			return "", invalid("invalid task applink: %v", err).WithCause(err)
+		}
+		guid := strings.TrimSpace(u.Query().Get("guid"))
+		if guid == "" {
+			return "", invalid("task applink is missing a non-empty guid query parameter")
+		}
+		return guid, nil
+	}
+
+	if taskDisplayNumberPattern.MatchString(input) {
+		return "", invalid("task display number %q is not a Task OpenAPI GUID", input)
+	}
+
+	return input, nil
+}
+
 func buildTaskCreateBody(runtime *common.RuntimeContext) (map[string]interface{}, error) {
 	body := make(map[string]interface{})
 

shortcuts/task/shortcuts_test.go

@@ -4,8 +4,11 @@
 package task
 
 import (
+	"errors"
+	"net/url"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/smartystreets/goconvey/convey"
 )
 
@@ -15,3 +18,80 @@ func TestShortcutsRegistration(t *testing.T) {
 		convey.So(len(list), convey.ShouldBeGreaterThan, 0)
 	})
 }
+
+func TestParseTaskGUID(t *testing.T) {
+	t.Run("accepts GUIDs and task applinks", func(t *testing.T) {
+		tests := []struct {
+			name  string
+			input string
+			want  string
+		}{
+			{name: "opaque GUID", input: "task-guid-123", want: "task-guid-123"},
+			{name: "trimmed GUID", input: "  task-guid-123  ", want: "task-guid-123"},
+			{
+				name:  "task applink",
+				input: "https://applink.larksuite.com/client/todo/detail?guid=task-guid-123",
+				want:  "task-guid-123",
+			},
+		}
+
+		for _, tt := range tests {
+			t.Run(tt.name, func(t *testing.T) {
+				got, err := parseTaskGUID(tt.input)
+				if err != nil {
+					t.Fatalf("parseTaskGUID(%q) error = %v", tt.input, err)
+				}
+				if got != tt.want {
+					t.Fatalf("parseTaskGUID(%q) = %q, want %q", tt.input, got, tt.want)
+				}
+			})
+		}
+	})
+
+	t.Run("rejects unusable task identifiers", func(t *testing.T) {
+		for _, input := range []string{
+			"",
+			"https://applink.larksuite.com/client/todo/detail",
+			"https://%",
+			"t12345",
+		} {
+			t.Run(input, func(t *testing.T) {
+				_, err := parseTaskGUID(input)
+				if err == nil {
+					t.Fatalf("parseTaskGUID(%q) error = nil, want typed validation error", input)
+				}
+
+				problem, ok := errs.ProblemOf(err)
+				if !ok {
+					t.Fatalf("parseTaskGUID(%q) error type = %T, want typed error", input, err)
+				}
+				if problem.Category != errs.CategoryValidation || problem.Subtype != errs.SubtypeInvalidArgument {
+					t.Fatalf("problem = %s/%s, want %s/%s", problem.Category, problem.Subtype, errs.CategoryValidation, errs.SubtypeInvalidArgument)
+				}
+				if problem.Hint == "" {
+					t.Fatal("problem hint is empty")
+				}
+
+				var validationErr *errs.ValidationError
+				if !errors.As(err, &validationErr) {
+					t.Fatalf("error type = %T, want *errs.ValidationError", err)
+				}
+				if validationErr.Param != "--task-id" {
+					t.Fatalf("param = %q, want %q", validationErr.Param, "--task-id")
+				}
+			})
+		}
+	})
+
+	t.Run("preserves applink parse cause", func(t *testing.T) {
+		_, err := parseTaskGUID("https://%")
+		if err == nil {
+			t.Fatal("parseTaskGUID() error = nil, want URL parse error")
+		}
+
+		var urlErr *url.Error
+		if !errors.As(err, &urlErr) {
+			t.Fatalf("error chain = %T %v, want *url.Error cause", err, err)
+		}
+	})
+}

shortcuts/task/task_complete.go

@@ -25,45 +25,59 @@ var CompleteTask = common.Shortcut{
 	HasFormat:   true,
 
 	Flags: []common.Flag{
-		{Name: "task-id", Desc: "task id", Required: true},
+		{Name: "task-id", Desc: "task GUID or task applink URL", Required: true},
+	},
+
+	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		_, err := parseTaskGUID(runtime.Str("task-id"))
+		return err
 	},
 
 	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
 		body := buildCompleteBody()
-		taskId := url.PathEscape(runtime.Str("task-id"))
+		taskGUID, err := parseTaskGUID(runtime.Str("task-id"))
+		if err != nil {
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		taskID := url.PathEscape(taskGUID)
 		return common.NewDryRunAPI().
-			GET("/open-apis/task/v2/tasks/" + taskId).
+			GET("/open-apis/task/v2/tasks/" + taskID).
 			Desc("get current task status").
 			Params(map[string]interface{}{"user_id_type": "open_id"}).
-			PATCH("/open-apis/task/v2/tasks/" + taskId).
+			PATCH("/open-apis/task/v2/tasks/" + taskID).
 			Desc("complete task if not completed").
 			Params(map[string]interface{}{"user_id_type": "open_id"}).
 			Body(body)
 	},
 
 	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
-		taskId := url.PathEscape(runtime.Str("task-id"))
+		taskGUID, err := parseTaskGUID(runtime.Str("task-id"))
+		if err != nil {
+			return err
+		}
+		taskID := url.PathEscape(taskGUID)
 
 		params := map[string]interface{}{"user_id_type": "open_id"}
 
 		var data map[string]interface{}
 
 		// 1. Get current task status
-		getData, err := callTaskAPITyped(runtime, http.MethodGet, "/open-apis/task/v2/tasks/"+taskId, params, nil)
+		getData, err := callTaskAPITyped(runtime, http.MethodGet, "/open-apis/task/v2/tasks/"+taskID, params, nil)
 		if err != nil {
 			return err
 		}
 
 		taskData, _ := getData["task"].(map[string]interface{})
 		completedAtStr, _ := taskData["completed_at"].(string)
+		alreadyCompleted := completedAtStr != "" && completedAtStr != "0"
 
 		// 2. If already completed, directly return success
-		if completedAtStr != "" && completedAtStr != "0" {
+		if alreadyCompleted {
 			data = getData
 		} else {
 			// 3. Complete the task
 			body := buildCompleteBody()
-			data, err = callTaskAPITyped(runtime, http.MethodPatch, "/open-apis/task/v2/tasks/"+taskId, params, body)
+			data, err = callTaskAPITyped(runtime, http.MethodPatch, "/open-apis/task/v2/tasks/"+taskID, params, body)
 			if err != nil {
 				return err
 			}
@@ -73,11 +87,19 @@ var CompleteTask = common.Shortcut{
 		guid, _ := task["guid"].(string)
 		urlVal, _ := task["url"].(string)
 		urlVal = truncateTaskURL(urlVal)
+		completedAt, _ := task["completed_at"].(string)
+		status := "todo"
+		if completedAt != "" && completedAt != "0" {
+			status = "done"
+		}
 
 		// Standardized write output: return resource identifiers
 		outData := map[string]interface{}{
-			"guid": guid,
-			"url":  urlVal,
+			"guid":              guid,
+			"url":               urlVal,
+			"status":            status,
+			"completed_at":      completedAt,
+			"already_completed": alreadyCompleted,
 		}
 
 		runtime.OutFormat(outData, nil, func(w io.Writer) {

shortcuts/task/task_complete_test.go

@@ -4,9 +4,12 @@
 package task
 
 import (
+	"encoding/json"
+	"errors"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/httpmock"
 )
 
@@ -45,6 +48,9 @@ func TestCompleteTask(t *testing.T) {
 			formatFlag:  "json",
 			expectedOutput: []string{
 				`"guid": "task-789"`,
+				`"status": "done"`,
+				`"completed_at": "1775174400000"`,
+				`"already_completed": false`,
 			},
 		},
 	}
@@ -109,3 +115,98 @@ func TestCompleteTask(t *testing.T) {
 		})
 	}
 }
+
+func TestTaskCompleteAcceptsTaskApplink(t *testing.T) {
+	f, stdout, _, reg := taskShortcutTestFactory(t)
+	warmTenantToken(t, f, reg)
+
+	for _, method := range []string{"GET", "PATCH"} {
+		reg.Register(&httpmock.Stub{
+			Method: method,
+			URL:    "/open-apis/task/v2/tasks/task-guid-applink",
+			Body: map[string]interface{}{
+				"code": 0, "msg": "success",
+				"data": map[string]interface{}{
+					"task": map[string]interface{}{
+						"guid":         "task-guid-applink",
+						"summary":      "Applink task",
+						"completed_at": map[string]string{"GET": "0", "PATCH": "1775174400000"}[method],
+						"url":          "https://example.com/task-guid-applink",
+					},
+				},
+			},
+		})
+	}
+
+	err := runMountedTaskShortcut(t, CompleteTask, []string{
+		"+complete",
+		"--task-id", "https://applink.larksuite.com/client/todo/detail?guid=task-guid-applink",
+		"--format", "json",
+		"--as", "bot",
+	}, f, stdout)
+	if err != nil {
+		t.Fatalf("CompleteTask error = %v", err)
+	}
+	reg.Verify(t)
+	if !strings.Contains(stdout.String(), `"guid": "task-guid-applink"`) {
+		t.Fatalf("output = %s, want normalized task GUID", stdout.String())
+	}
+}
+
+func TestTaskCompleteAlreadyCompletedReturnsServerState(t *testing.T) {
+	f, stdout, _, reg := taskShortcutTestFactory(t)
+	warmTenantToken(t, f, reg)
+
+	reg.Register(&httpmock.Stub{
+		Method: "GET",
+		URL:    "/open-apis/task/v2/tasks/task-guid-done",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "success",
+			"data": map[string]interface{}{
+				"task": map[string]interface{}{
+					"guid":         "task-guid-done",
+					"summary":      "Already done",
+					"completed_at": "1775174400000",
+					"url":          "https://example.com/task-guid-done",
+				},
+			},
+		},
+	})
+
+	err := runMountedTaskShortcut(t, CompleteTask, []string{
+		"+complete", "--task-id", "task-guid-done", "--format", "json", "--as", "bot",
+	}, f, stdout)
+	if err != nil {
+		t.Fatalf("CompleteTask error = %v", err)
+	}
+	reg.Verify(t)
+
+	var envelope map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &envelope); err != nil {
+		t.Fatalf("decode output: %v\n%s", err, stdout.String())
+	}
+	data, _ := envelope["data"].(map[string]interface{})
+	if data["status"] != "done" || data["completed_at"] != "1775174400000" || data["already_completed"] != true {
+		t.Fatalf("completion state = %#v, want done/already_completed server state", data)
+	}
+}
+
+func TestTaskCompleteRejectsDisplayNumberBeforeRead(t *testing.T) {
+	f, stdout, _, reg := taskShortcutTestFactory(t)
+	warmTenantToken(t, f, reg)
+
+	err := runMountedTaskShortcut(t, CompleteTask, []string{
+		"+complete", "--task-id", "t12345", "--format", "json", "--as", "bot",
+	}, f, stdout)
+	if err == nil {
+		t.Fatal("CompleteTask error = nil, want invalid task ID error")
+	}
+	problem, ok := errs.ProblemOf(err)
+	if !ok || problem.Category != errs.CategoryValidation || problem.Subtype != errs.SubtypeInvalidArgument {
+		t.Fatalf("error = %T %v, want typed invalid-argument error", err, err)
+	}
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) || validationErr.Param != "--task-id" {
+		t.Fatalf("error param = %#v, want --task-id", validationErr)
+	}
+}

shortcuts/task/task_query_helpers.go

@@ -24,6 +24,14 @@ func splitAndTrimCSV(input string) []string {
 	return out
 }
 
+func buildSearchPageParams(pageToken string) map[string]interface{} {
+	params := map[string]interface{}{}
+	if pageToken != "" {
+		params["page_token"] = pageToken
+	}
+	return params
+}
+
 func parseTimeRangeMillis(input string) (string, string, error) {
 	if strings.TrimSpace(input) == "" {
 		return "", "", nil

shortcuts/task/task_query_helpers_test.go

@@ -37,6 +37,31 @@ func TestSplitAndTrimCSV(t *testing.T) {
 	}
 }
 
+func TestBuildSearchPageParams(t *testing.T) {
+	tests := []struct {
+		name      string
+		pageToken string
+		wantToken string
+		wantKey   bool
+	}{
+		{name: "first page omits token"},
+		{name: "subsequent page includes token", pageToken: "pt_123", wantToken: "pt_123", wantKey: true},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			params := buildSearchPageParams(tt.pageToken)
+			got, present := params["page_token"]
+			if present != tt.wantKey {
+				t.Fatalf("page_token present = %v, want %v; params = %#v", present, tt.wantKey, params)
+			}
+			if tt.wantKey && got != tt.wantToken {
+				t.Fatalf("page_token = %v, want %q", got, tt.wantToken)
+			}
+		})
+	}
+}
+
 func TestOutputTaskSummary(t *testing.T) {
 	tests := []struct {
 		name string

shortcuts/task/task_search.go

@@ -44,8 +44,10 @@ var SearchTask = common.Shortcut{
 		if err != nil {
 			return common.NewDryRunAPI().Set("error", err.Error())
 		}
+		params := buildSearchPageParams(runtime.Str("page-token"))
 		return common.NewDryRunAPI().
 			POST("/open-apis/task/v2/tasks/search").
+			Params(params).
 			Body(body).
 			Desc("Then GET /open-apis/task/v2/tasks/:guid for each search hit to render standard output")
 	},
@@ -74,9 +76,9 @@ var SearchTask = common.Shortcut{
 		var lastPageToken string
 		var lastHasMore bool
 		var notice string
-		currentBody := body
+		params := buildSearchPageParams(runtime.Str("page-token"))
 		for page := 0; page < pageLimit; page++ {
-			data, err := callTaskAPITyped(runtime, http.MethodPost, "/open-apis/task/v2/tasks/search", nil, currentBody)
+			data, err := callTaskAPITyped(runtime, http.MethodPost, "/open-apis/task/v2/tasks/search", params, body)
 			if err != nil {
 				return err
 			}
@@ -90,7 +92,7 @@ var SearchTask = common.Shortcut{
 			if !lastHasMore || lastPageToken == "" {
 				break
 			}
-			currentBody["page_token"] = lastPageToken
+			params["page_token"] = lastPageToken
 		}
 
 		enriched := make([]map[string]interface{}, 0, len(rawItems))
@@ -183,9 +185,6 @@ func buildTaskSearchBody(runtime *common.RuntimeContext) (map[string]interface{}
 	if len(filter) > 0 {
 		body["filter"] = filter
 	}
-	if pageToken := runtime.Str("page-token"); pageToken != "" {
-		body["page_token"] = pageToken
-	}
 	return body, nil
 }
 

shortcuts/task/task_search_pagination_test.go

@@ -0,0 +1,129 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package task
+
+import (
+	"encoding/json"
+	"io"
+	"net/http"
+	"reflect"
+	"testing"
+
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+func TestSearchPaginationUsesQueryToken(t *testing.T) {
+	tests := []struct {
+		name     string
+		shortcut common.Shortcut
+		command  string
+		url      string
+	}{
+		{
+			name:     "tasks",
+			shortcut: SearchTask,
+			command:  "+search",
+			url:      "/open-apis/task/v2/tasks/search",
+		},
+		{
+			name:     "tasklists",
+			shortcut: SearchTasklist,
+			command:  "+tasklist-search",
+			url:      "/open-apis/task/v2/tasklists/search",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			f, stdout, _, reg := taskShortcutTestFactory(t)
+			warmTenantToken(t, f, reg)
+
+			var pageTokens []string
+			reg.Register(searchPaginationStub(t, tt.url, "next_pt", true, &pageTokens))
+			reg.Register(searchPaginationStub(t, tt.url, "", false, &pageTokens))
+
+			shortcut := tt.shortcut
+			shortcut.AuthTypes = []string{"bot", "user"}
+			err := runMountedTaskShortcut(t, shortcut, []string{
+				tt.command,
+				"--query", "pagination",
+				"--page-token", "initial_pt",
+				"--page-limit", "2",
+				"--as", "bot",
+				"--format", "json",
+			}, f, stdout)
+			if err != nil {
+				t.Fatalf("search command failed: %v", err)
+			}
+
+			want := []string{"initial_pt", "next_pt"}
+			if !reflect.DeepEqual(pageTokens, want) {
+				t.Fatalf("search page tokens = %#v, want %#v", pageTokens, want)
+			}
+		})
+	}
+}
+
+func assertSearchDryRunPageToken(t *testing.T, preview *common.DryRunAPI, want string) {
+	t.Helper()
+
+	data, err := preview.MarshalJSON()
+	if err != nil {
+		t.Fatalf("marshal search dry-run preview: %v", err)
+	}
+	var envelope struct {
+		API []struct {
+			Params map[string]interface{} `json:"params"`
+			Body   map[string]interface{} `json:"body"`
+		} `json:"api"`
+	}
+	if err := json.Unmarshal(data, &envelope); err != nil {
+		t.Fatalf("decode search dry-run preview: %v", err)
+	}
+	if len(envelope.API) != 1 {
+		t.Fatalf("search dry-run API call count = %d, want 1; preview = %s", len(envelope.API), data)
+	}
+	call := envelope.API[0]
+	if got, _ := call.Params["page_token"].(string); got != want {
+		t.Fatalf("search dry-run params.page_token = %q, want %q; preview = %s", got, want, data)
+	}
+	if _, present := call.Body["page_token"]; present {
+		t.Fatalf("search dry-run body unexpectedly contains page_token; preview = %s", data)
+	}
+}
+
+func searchPaginationStub(t *testing.T, endpoint, responseToken string, hasMore bool, capturedTokens *[]string) *httpmock.Stub {
+	t.Helper()
+	return &httpmock.Stub{
+		Method: http.MethodPost,
+		URL:    endpoint,
+		OnMatch: func(req *http.Request) {
+			*capturedTokens = append(*capturedTokens, req.URL.Query().Get("page_token"))
+
+			body, err := io.ReadAll(req.Body)
+			if err != nil {
+				t.Errorf("read search request body: %v", err)
+				return
+			}
+			var payload map[string]interface{}
+			if err := json.Unmarshal(body, &payload); err != nil {
+				t.Errorf("decode search request body: %v", err)
+				return
+			}
+			if _, present := payload["page_token"]; present {
+				t.Errorf("search request body unexpectedly contains page_token: %s", body)
+			}
+		},
+		Body: map[string]interface{}{
+			"code": 0,
+			"msg":  "success",
+			"data": map[string]interface{}{
+				"has_more":   hasMore,
+				"page_token": responseToken,
+				"items":      []interface{}{},
+			},
+		},
+	}
+}

shortcuts/task/task_search_test.go

@@ -37,9 +37,12 @@ func TestBuildTaskSearchBody(t *testing.T) {
 			check: func(t *testing.T, body map[string]interface{}) {
 				filter := body["filter"].(map[string]interface{})
 				dueTime := filter["due_time"].(map[string]interface{})
-				if body["query"] != "release" || body["page_token"] != "pt_123" {
+				if body["query"] != "release" {
 					t.Fatalf("unexpected body: %#v", body)
 				}
+				if _, present := body["page_token"]; present {
+					t.Fatalf("body unexpectedly contains page_token: %#v", body)
+				}
 				if len(filter["creator_ids"].([]string)) != 2 || filter["is_completed"] != true {
 					t.Fatalf("unexpected filter: %#v", filter)
 				}
@@ -104,9 +107,10 @@ func TestBuildTaskSearchBody(t *testing.T) {
 
 func TestSearchTask_DryRun(t *testing.T) {
 	tests := []struct {
-		name      string
-		setup     func(*cobra.Command)
-		wantParts []string
+		name          string
+		setup         func(*cobra.Command)
+		wantPageToken string
+		wantParts     []string
 	}{
 		{
 			name: "valid dry run",
@@ -114,7 +118,8 @@ func TestSearchTask_DryRun(t *testing.T) {
 				_ = cmd.Flags().Set("query", "demo")
 				_ = cmd.Flags().Set("page-token", "pt_demo")
 			},
-			wantParts: []string{"POST /open-apis/task/v2/tasks/search", `"query":"demo"`},
+			wantPageToken: "pt_demo",
+			wantParts:     []string{`"query":"demo"`},
 		},
 		{
 			name: "dry run error on invalid due",
@@ -143,7 +148,11 @@ func TestSearchTask_DryRun(t *testing.T) {
 					t.Fatalf("Validate() error = %v", err)
 				}
 			}
-			out := SearchTask.DryRun(nil, runtime).Format()
+			preview := SearchTask.DryRun(nil, runtime)
+			if tt.wantPageToken != "" {
+				assertSearchDryRunPageToken(t, preview, tt.wantPageToken)
+			}
+			out := preview.Format()
 			for _, want := range tt.wantParts {
 				if !strings.Contains(out, want) {
 					t.Fatalf("dry run output missing %q: %s", want, out)

shortcuts/task/task_tasklist_search.go

@@ -41,8 +41,10 @@ var SearchTasklist = common.Shortcut{
 		if err != nil {
 			return common.NewDryRunAPI().Set("error", err.Error())
 		}
+		params := buildSearchPageParams(runtime.Str("page-token"))
 		return common.NewDryRunAPI().
 			POST("/open-apis/task/v2/tasklists/search").
+			Params(params).
 			Body(body).
 			Desc("Then GET /open-apis/task/v2/tasklists/:guid for each search hit to render standard output")
 	},
@@ -71,9 +73,9 @@ var SearchTasklist = common.Shortcut{
 		var lastPageToken string
 		var lastHasMore bool
 		var notice string
-		currentBody := body
+		params := buildSearchPageParams(runtime.Str("page-token"))
 		for page := 0; page < pageLimit; page++ {
-			data, err := callTaskAPITyped(runtime, http.MethodPost, "/open-apis/task/v2/tasklists/search", nil, currentBody)
+			data, err := callTaskAPITyped(runtime, http.MethodPost, "/open-apis/task/v2/tasklists/search", params, body)
 			if err != nil {
 				return err
 			}
@@ -87,7 +89,7 @@ var SearchTasklist = common.Shortcut{
 			if !lastHasMore || lastPageToken == "" {
 				break
 			}
-			currentBody["page_token"] = lastPageToken
+			params["page_token"] = lastPageToken
 		}
 
 		tasklists := make([]map[string]interface{}, 0, len(rawItems))
@@ -170,9 +172,6 @@ func buildTasklistSearchBody(runtime *common.RuntimeContext) (map[string]interfa
 	if len(filter) > 0 {
 		body["filter"] = filter
 	}
-	if pageToken := runtime.Str("page-token"); pageToken != "" {
-		body["page_token"] = pageToken
-	}
 	return body, nil
 }
 

shortcuts/task/task_tasklist_search_test.go

@@ -33,8 +33,8 @@ func TestBuildTasklistSearchBody(t *testing.T) {
 			check: func(t *testing.T, body map[string]interface{}) {
 				filter := body["filter"].(map[string]interface{})
 				createTime := filter["create_time"].(map[string]interface{})
-				if body["page_token"] != "pt_tl" {
-					t.Fatalf("unexpected body: %#v", body)
+				if _, present := body["page_token"]; present {
+					t.Fatalf("body unexpectedly contains page_token: %#v", body)
 				}
 				if filter["user_id"].([]string)[0] != "ou_creator" {
 					t.Fatalf("unexpected filter: %#v", filter)
@@ -80,9 +80,10 @@ func TestBuildTasklistSearchBody(t *testing.T) {
 
 func TestSearchTasklist_DryRun(t *testing.T) {
 	tests := []struct {
-		name      string
-		setup     func(*cobra.Command)
-		wantParts []string
+		name          string
+		setup         func(*cobra.Command)
+		wantPageToken string
+		wantParts     []string
 	}{
 		{
 			name: "valid dry run",
@@ -90,7 +91,8 @@ func TestSearchTasklist_DryRun(t *testing.T) {
 				_ = cmd.Flags().Set("query", "Q2")
 				_ = cmd.Flags().Set("page-token", "pt_tl")
 			},
-			wantParts: []string{"POST /open-apis/task/v2/tasklists/search", `"query":"Q2"`},
+			wantPageToken: "pt_tl",
+			wantParts:     []string{`"query":"Q2"`},
 		},
 		{
 			name: "dry run error on invalid create time",
@@ -116,7 +118,11 @@ func TestSearchTasklist_DryRun(t *testing.T) {
 					t.Fatalf("Validate() error = %v", err)
 				}
 			}
-			out := SearchTasklist.DryRun(nil, runtime).Format()
+			preview := SearchTasklist.DryRun(nil, runtime)
+			if tt.wantPageToken != "" {
+				assertSearchDryRunPageToken(t, preview, tt.wantPageToken)
+			}
+			out := preview.Format()
 			for _, want := range tt.wantParts {
 				if !strings.Contains(out, want) {
 					t.Fatalf("dry run output missing %q: %s", want, out)

shortcuts/task/task_update.go

@@ -27,27 +27,42 @@ var UpdateTask = common.Shortcut{
 	HasFormat:   true,
 
 	Flags: []common.Flag{
-		{Name: "task-id", Desc: "task id (comma-separated for multiple)", Required: true},
+		{Name: "task-id", Desc: "task GUID or task applink URL (comma-separated for multiple)", Required: true},
 		{Name: "summary", Desc: "task title"},
 		{Name: "description", Desc: "task description"},
 		{Name: "due", Desc: "due date (ISO 8601 / date:YYYY-MM-DD / relative:+2d / ms timestamp)"},
 		{Name: "data", Desc: "JSON payload for task object"},
 	},
 
+	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		_, err := parseTaskGUIDs(runtime.Str("task-id"))
+		return err
+	},
+
 	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
 		body, err := buildTaskUpdateBody(runtime)
 		if err != nil {
 			return common.NewDryRunAPI().Set("error", err.Error())
 		}
-		taskIds := strings.Split(runtime.Str("task-id"), ",")
-		taskId := url.PathEscape(strings.TrimSpace(taskIds[0]))
-		return common.NewDryRunAPI().
-			PATCH("/open-apis/task/v2/tasks/" + taskId).
-			Params(map[string]interface{}{"user_id_type": "open_id"}).
-			Body(body)
+		taskIDs, err := parseTaskGUIDs(runtime.Str("task-id"))
+		if err != nil {
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		preview := common.NewDryRunAPI()
+		for _, taskID := range taskIDs {
+			preview.PATCH("/open-apis/task/v2/tasks/" + url.PathEscape(taskID)).
+				Params(map[string]interface{}{"user_id_type": "open_id"}).
+				Body(body)
+		}
+		return preview
 	},
 
 	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		taskIDs, err := parseTaskGUIDs(runtime.Str("task-id"))
+		if err != nil {
+			return err
+		}
+
 		body, err := buildTaskUpdateBody(runtime)
 		if err != nil {
 			// buildTaskUpdateBody already returns a typed validation error;
@@ -55,17 +70,11 @@ var UpdateTask = common.Shortcut{
 			return err
 		}
 
-		taskIds := strings.Split(runtime.Str("task-id"), ",")
 		var updatedTasks []map[string]interface{}
 
-		for _, taskId := range taskIds {
-			taskId = strings.TrimSpace(taskId)
-			if taskId == "" {
-				continue
-			}
-
+		for _, taskID := range taskIDs {
 			params := map[string]interface{}{"user_id_type": "open_id"}
-			data, err := callTaskAPITyped(runtime, http.MethodPatch, "/open-apis/task/v2/tasks/"+url.PathEscape(taskId), params, body)
+			data, err := callTaskAPITyped(runtime, http.MethodPatch, "/open-apis/task/v2/tasks/"+url.PathEscape(taskID), params, body)
 			if err != nil {
 				return err
 			}
@@ -76,19 +85,28 @@ var UpdateTask = common.Shortcut{
 			}
 		}
 
+		updateFields, _ := body["update_fields"].([]string)
 		var tasks []map[string]interface{}
 		for _, task := range updatedTasks {
 			guid, _ := task["guid"].(string)
 			urlVal, _ := task["url"].(string)
 			urlVal = truncateTaskURL(urlVal)
+			confirmed := make(map[string]interface{})
+			for _, field := range updateFields {
+				if value, ok := task[field]; ok {
+					confirmed[field] = value
+				}
+			}
 			tasks = append(tasks, map[string]interface{}{
-				"guid": guid,
-				"url":  urlVal,
+				"guid":      guid,
+				"url":       urlVal,
+				"confirmed": confirmed,
 			})
 		}
 		// Standardized write output: return resource identifiers
 		outData := map[string]interface{}{
-			"tasks": tasks,
+			"updated_fields": updateFields,
+			"tasks":          tasks,
 		}
 
 		runtime.OutFormat(outData, &output.Meta{Count: len(updatedTasks)}, func(w io.Writer) {
@@ -112,6 +130,26 @@ var UpdateTask = common.Shortcut{
 	},
 }
 
+func parseTaskGUIDs(input string) ([]string, error) {
+	parts := strings.Split(input, ",")
+	taskGUIDs := make([]string, 0, len(parts))
+	for _, part := range parts {
+		if strings.TrimSpace(part) == "" {
+			continue
+		}
+		guid, err := parseTaskGUID(part)
+		if err != nil {
+			return nil, err
+		}
+		taskGUIDs = append(taskGUIDs, guid)
+	}
+	if len(taskGUIDs) == 0 {
+		_, err := parseTaskGUID("")
+		return nil, err
+	}
+	return taskGUIDs, nil
+}
+
 func buildTaskUpdateBody(runtime *common.RuntimeContext) (map[string]interface{}, error) {
 	taskObj := make(map[string]interface{})
 	var updateFields []string

shortcuts/task/task_update_test.go

@@ -0,0 +1,201 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package task
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"reflect"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/shortcuts/common"
+	"github.com/spf13/cobra"
+)
+
+func TestParseTaskGUIDs(t *testing.T) {
+	got, err := parseTaskGUIDs(" task-guid-1, https://applink.larksuite.com/client/todo/detail?guid=task-guid-2 ")
+	if err != nil {
+		t.Fatalf("parseTaskGUIDs() error = %v", err)
+	}
+	want := []string{"task-guid-1", "task-guid-2"}
+	if !reflect.DeepEqual(got, want) {
+		t.Fatalf("parseTaskGUIDs() = %v, want %v", got, want)
+	}
+
+	_, err = parseTaskGUIDs("task-guid-1,t12345")
+	if err == nil {
+		t.Fatal("parseTaskGUIDs() error = nil, want invalid display-number error")
+	}
+}
+
+func TestTaskUpdateDryRunPreviewsEveryTaskID(t *testing.T) {
+	cmd := &cobra.Command{}
+	cmd.Flags().String("task-id", "task-guid-1,https://applink.larksuite.com/client/todo/detail?guid=task-guid-2", "")
+	cmd.Flags().String("summary", "updated", "")
+	cmd.Flags().String("description", "", "")
+	cmd.Flags().String("due", "", "")
+	cmd.Flags().String("data", "", "")
+
+	preview := UpdateTask.DryRun(context.Background(), &common.RuntimeContext{Cmd: cmd})
+	payload, err := json.Marshal(preview)
+	if err != nil {
+		t.Fatalf("marshal dry-run preview: %v", err)
+	}
+
+	var got struct {
+		API []struct {
+			Method string                 `json:"method"`
+			URL    string                 `json:"url"`
+			Params map[string]interface{} `json:"params"`
+			Body   map[string]interface{} `json:"body"`
+		} `json:"api"`
+	}
+	if err := json.Unmarshal(payload, &got); err != nil {
+		t.Fatalf("decode dry-run preview: %v", err)
+	}
+	if len(got.API) != 2 {
+		t.Fatalf("dry-run API calls = %d, want 2; payload: %s", len(got.API), payload)
+	}
+
+	wantURLs := []string{
+		"/open-apis/task/v2/tasks/task-guid-1",
+		"/open-apis/task/v2/tasks/task-guid-2",
+	}
+	for i, call := range got.API {
+		if call.Method != "PATCH" {
+			t.Errorf("api[%d].method = %q, want PATCH", i, call.Method)
+		}
+		if call.URL != wantURLs[i] {
+			t.Errorf("api[%d].url = %q, want %q", i, call.URL, wantURLs[i])
+		}
+		if !reflect.DeepEqual(call.Params, map[string]interface{}{"user_id_type": "open_id"}) {
+			t.Errorf("api[%d].params = %#v", i, call.Params)
+		}
+		if !reflect.DeepEqual(call.Body, got.API[0].Body) {
+			t.Errorf("api[%d].body = %#v, want same body as first call %#v", i, call.Body, got.API[0].Body)
+		}
+	}
+}
+
+func TestTaskUpdateNormalizesAllIDsAndReturnsConfirmedFields(t *testing.T) {
+	f, stdout, _, reg := taskShortcutTestFactory(t)
+	warmTenantToken(t, f, reg)
+
+	first := &httpmock.Stub{
+		Method: "PATCH",
+		URL:    "/open-apis/task/v2/tasks/task-guid-1",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "success",
+			"data": map[string]interface{}{
+				"task": map[string]interface{}{
+					"guid":        "task-guid-1",
+					"url":         "https://example.com/task-guid-1",
+					"summary":     "server summary one",
+					"description": "server description one",
+				},
+			},
+		},
+	}
+	second := &httpmock.Stub{
+		Method: "PATCH",
+		URL:    "/open-apis/task/v2/tasks/task-guid-2",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "success",
+			"data": map[string]interface{}{
+				"task": map[string]interface{}{
+					"guid":    "task-guid-2",
+					"url":     "https://example.com/task-guid-2",
+					"summary": "server summary two",
+				},
+			},
+		},
+	}
+	reg.Register(first)
+	reg.Register(second)
+
+	err := runMountedTaskShortcut(t, UpdateTask, []string{
+		"+update",
+		"--task-id", "task-guid-1,https://applink.larksuite.com/client/todo/detail?guid=task-guid-2",
+		"--summary", "requested summary",
+		"--description", "requested description",
+		"--format", "json",
+		"--as", "bot",
+	}, f, stdout)
+	if err != nil {
+		t.Fatalf("UpdateTask error = %v", err)
+	}
+	reg.Verify(t)
+
+	var envelope map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &envelope); err != nil {
+		t.Fatalf("decode output: %v\n%s", err, stdout.String())
+	}
+	data, ok := envelope["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("data = %#v, want object", envelope["data"])
+	}
+	if got := stringSlice(data["updated_fields"]); !reflect.DeepEqual(got, []string{"summary", "description"}) {
+		t.Fatalf("updated_fields = %v, want [summary description]", got)
+	}
+
+	tasks, ok := data["tasks"].([]interface{})
+	if !ok || len(tasks) != 2 {
+		t.Fatalf("tasks = %#v, want two tasks", data["tasks"])
+	}
+	firstTask := tasks[0].(map[string]interface{})
+	if firstTask["guid"] != "task-guid-1" || firstTask["url"] != "https://example.com/task-guid-1" {
+		t.Fatalf("first task identifiers = %#v", firstTask)
+	}
+	if got := firstTask["confirmed"]; !reflect.DeepEqual(got, map[string]interface{}{
+		"summary": "server summary one", "description": "server description one",
+	}) {
+		t.Fatalf("first confirmed = %#v", got)
+	}
+
+	secondTask := tasks[1].(map[string]interface{})
+	if got := secondTask["confirmed"]; !reflect.DeepEqual(got, map[string]interface{}{
+		"summary": "server summary two",
+	}) {
+		t.Fatalf("second confirmed = %#v; omitted server fields must not be echoed from the request", got)
+	}
+}
+
+func TestTaskUpdateValidatesEveryIDBeforeFirstWrite(t *testing.T) {
+	f, stdout, _, reg := taskShortcutTestFactory(t)
+	warmTenantToken(t, f, reg)
+
+	err := runMountedTaskShortcut(t, UpdateTask, []string{
+		"+update",
+		"--task-id", "task-guid-1,t12345",
+		"--summary", "must not be written",
+		"--format", "json",
+		"--as", "bot",
+	}, f, stdout)
+	if err == nil {
+		t.Fatal("UpdateTask error = nil, want invalid task ID error")
+	}
+
+	problem, ok := errs.ProblemOf(err)
+	if !ok || problem.Category != errs.CategoryValidation || problem.Subtype != errs.SubtypeInvalidArgument {
+		t.Fatalf("error = %T %v, want typed invalid-argument error", err, err)
+	}
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) || validationErr.Param != "--task-id" {
+		t.Fatalf("error param = %#v, want --task-id", validationErr)
+	}
+}
+
+func stringSlice(value interface{}) []string {
+	items, _ := value.([]interface{})
+	result := make([]string, 0, len(items))
+	for _, item := range items {
+		if str, ok := item.(string); ok {
+			result = append(result, str)
+		}
+	}
+	return result
+}

skills/lark-apps/references/lark-apps-file.md

@@ -28,7 +28,7 @@
 ## 各命令
 
 ### +file-list
-列出应用文件，支持精确过滤：`--name`（文件名）、`--path`（远端路径）、`--type`（MIME 类型）、`--size-gt`/`--size-lt`（字节）、`--uploaded-since`/`--uploaded-until`（上传时间区间，时间格式见末尾）。分页 `--page-size`（默认 20）/ `--page-token`。列表每项给名称、路径、大小、类型、上传时间（pretty 表格即这 5 列）；上传者、下载地址（如有）仅在 JSON 输出里，单文件详情用 `+file-get`。
+列出应用文件，支持精确过滤：`--name`（文件名）、`--path`（远端路径）、`--type`（MIME 类型）、`--size-gt`/`--size-lt`（字节）、`--uploaded-since`/`--uploaded-until`（上传时间区间，时间格式见末尾）。分页 `--page-size`（默认 20，范围 1..200）/ `--page-token`。列表每项给名称、路径、大小、类型、上传时间（pretty 表格即这 5 列）；上传者、下载地址（如有）仅在 JSON 输出里，单文件详情用 `+file-get`。
 
 ```bash
 lark-cli apps +file-list --app-id app_xxx

skills/lark-base/SKILL.md

@@ -29,7 +29,7 @@ metadata:
 ## 使用边界
 
 - Base 业务操作只使用 `lark-cli base +...` shortcut，不使用旧聚合式 `+table / +field / +record / +view / +history / +workspace`。
-- 本轮 Base 不依赖 `lark-cli schema`。SKILL 只保留路由、风险和复杂 JSON/DSL；简单命令由命令自身的参数、tips 和错误恢复承接。
+- 执行 update 前必须先查当前 shortcut 的 `--help` 或对应 reference。若命令要求完整配置，首次请求必须基于可信的当前配置执行 read-modify-write：只修改用户明确指定的内容，保留其他仍适用的可写配置，并按命令要求的结构提交。若命令支持局部／delta update，按其契约提交最小合法 payload；不得以不完整请求试错补参。
 - 用户要把 Excel / CSV / `.base` 导入成 Base 时，先转 `lark-cli drive +import --type bitable`，导入完成后再回到 Base 命令。
 - 认证、初始化、scope、身份切换、权限不足恢复属于 `lark-shared`；Base 文档只保留会影响 Base 路径选择的权限规则。
 
@@ -104,20 +104,18 @@ metadata:
 
 ## 写入前置规则
 
-- 更新前先看命令说明：需要完整提交时，先读取并补齐当前配置，只改用户指定的内容，再按命令要求提交；支持局部修改时，按命令说明和 reference 提交最小合法 payload。
 - 优先用写入返回确认结果；返回信息不足或任务明确要求核验时，再读回。
 - 写记录前先读字段结构；只写存储字段。系统字段、附件字段、`formula`、`lookup` 不作为普通记录写入目标。
 - 附件上传、下载、删除走专用 `+record-*-attachment` 命令。
 - 写字段前先读 [lark-base-field-json.md](references/lark-base-field-json.md)；涉及 `formula` / `lookup` 时必须读 [formula-field-guide.md](references/formula-field-guide.md) / [lookup-field-guide.md](references/lookup-field-guide.md)。
 - 表名、字段名、视图名、workflow 配置中的名称必须来自真实返回；跨表场景还要读取目标表结构。
-- 删除、角色更新、字段更新等高风险操作遵循 CLI 的 confirmation gate；目标不明确时先用 get/list 消歧。
+- 删除、角色更新、字段更新、表单提交（`+form-submit`）等高风险操作遵循 CLI 的 confirmation gate，必须带 `--yes`；目标不明确时先用 get/list 消歧。
 - 批量写入单批最多 200 条；连续写同一表时串行执行，遇到 `1254291` 按短暂等待后重试处理。
-- `+record-batch-update` 使用 `update_records`，按 `record_id -> fields` 映射逐条提交字段值。
-- select/multiselect 写入未知选项可能触发平台新增选项；不是要新增时，先用 `+field-list` 或 `+field-search-options` 确认可选值。
+- `select` 字段只支持写入字段中已有的选项；构造 CellValue 前先用 `+field-list` 或 `+field-search-options` 确认目标选项存在。
 
 ## 表单与视图细节
 
-- `+form-submit` 前必须先跑 `+form-detail`，读取 `questions[].type`、`required`、`filter` 和附件场景需要的 `base_token`；不要填写被 filter 隐藏的问题。
+- `+form-submit` 是高风险写操作，必须带 `--yes` 确认；调用前必须先跑 `+form-detail`，读取 `questions[].type`、`required`、`filter` 和附件场景需要的 `base_token`；不要填写被 filter 隐藏的问题。
 - 表单附件不要写进 `fields`，放在 `--json.attachments`；提交附件时必须同时传表单所属 Base 的 `--base-token`。
 - `+view-set-filter` 是唯一保留的 view reference；sort/group/card/timebar/visible-fields 这类配置先用对应 get 命令读现状，保留未修改字段，只替换用户要求变更的配置。
 - 视图适合持久化、共享和 UI 复用；一次性筛选/排序可先用 `+record-list` / `+record-search` 的 filter/sort 验证结果，再按需要沉淀为持久视图。

skills/lark-base/references/lark-base-cell-value.md

@@ -8,7 +8,7 @@
 
 - `--json` 必须是 JSON 对象。
 - `+record-upsert`：顶层直接传字段映射：`{"字段名或字段ID": CellValue}`。
-- `+record-batch-create`：`rows` 是 `CellValue[][]`，列顺序由 `fields` 决定。
+- `+record-batch-create`：使用 `create_records`，其每个元素都是 `Map<FieldNameOrID, CellValue>`。
 - `+record-batch-update`：使用 `update_records`，其每个 value 都是 `Map<FieldNameOrID, CellValue>`。
 - 一次 payload 里同一字段只用一种 key（字段名或字段 ID），不要重复。
 - 写入前先 `+field-list` 获取字段 `type/style/multiple`，再构造值。
@@ -48,7 +48,7 @@ text 字段的 `style.type` 影响单元格检查逻辑：
 
 ### 2.3 select（单选/多选）
 
-单选用选项名字符串；多选用选项名数组。选项名建议与字段配置一致；写入未知选项时平台可能自动新增选项，因此不要把自然语言近义词当成已有选项传入。
+`select` 字段用 `multiple` 区分单选和多选：`multiple=false` 时传选项名字符串，`multiple=true` 时传选项名数组。只支持写入字段中已有的选项；构造 CellValue 前先用 `+field-list` 或 `+field-search-options` 确认目标选项存在。
 
 ```json
 {

skills/lark-base/references/lark-base-form-submit.md

@@ -4,6 +4,8 @@
 
 通过表单分享链接填写并提交多维表格表单。仅支持分享模式（share_token），支持填写普通字段值和上传本地文件作为附件。
 
+> **⚠️ 高风险写操作（high-risk-write）：** 本命令会向表单写入并提交数据，属于高风险写操作，必须额外传递 `--yes` 进行确认，否则会返回 `confirmation_required` 错误并退出。当用户明确要求提交且目标表单无歧义时，直接附加 `--yes`，无需再次询问。
+
 ## 填写前必读：先获取表单详情
 
 **在调用 `+form-submit` 之前，必须先使用 `+form-detail` 获取表单详情。** 原因如下：
@@ -21,10 +23,11 @@ lark-cli base +form-detail --share-token <share_token>
 
 # 2️⃣ 根据返回的 questions 列表，按 type 格式化值、检查 required、判断 filter 条件
 
-# 3️⃣ 再提交
+# 3️⃣ 再提交（高风险写操作，必须带 --yes）
 lark-cli base +form-submit \
   --share-token <share_token> \
-  --json '{"fields":{...}}'
+  --json '{"fields":{...}}' \
+  --yes
 ```
 
 `+form-detail` 的返回中要重点读取 `questions[].type`、`questions[].required`、题目 `filter` 和附件场景所需的 `data.base_token`。
@@ -35,7 +38,8 @@ lark-cli base +form-submit \
 # 基本提交（填写普通字段）
 lark-cli base +form-submit \
   --share-token <share_token> \
-  --json '{"fields":{"服务评分":5,"评价内容":"服务态度好"}}'
+  --json '{"fields":{"服务评分":5,"评价内容":"服务态度好"}}' \
+  --yes
 
 # 带附件提交（需要额外提供 --base-token）
 lark-cli base +form-submit \
@@ -47,15 +51,17 @@ lark-cli base +form-submit \
       "附件字段名": ["./report.pdf", "./photo.png"],
       "另一个附件字段": ["./doc.docx"]
     }
-  }'
+  }' \
+  --yes
 
 # 使用应用身份（bot）
 lark-cli base +form-submit \
   --share-token <share_token> \
   --json '{"fields":{...}}' \
-  --as bot
+  --as bot \
+  --yes
 
-# 预览 API 调用（不实际执行）
+# 预览 API 调用（不实际执行，dry-run 无需 --yes）
 lark-cli base +form-submit \
   --share-token <share_token> \
   --json '{"fields":{...}}' \
@@ -69,6 +75,7 @@ lark-cli base +form-submit \
 | `--share-token <token>` | 是 | 表单分享 Token（必填），从表单分享链接中提取 |
 | `--base-token <token>` | 条件必填 | Base token；**当 `--json` 包含 `attachments` 时必须提供**，用于将附件上传到 Base Drive Media |
 | `--json <json>` | 是 | JSON 对象，包含 `"fields"`（普通字段值）和 `"attachments"`（附件上传），详见下方说明 |
+| `--yes` | 是 | 确认高风险写操作。本命令为 high-risk-write，不带 `--yes` 会返回 `confirmation_required` |
 | `--format` | 否 | 输出格式：json（默认）\| pretty \| table \| ndjson \| csv |
 | `--as` | 否 | 身份：user（默认）\| bot |
 | `--dry-run` | 否 | 预览 API 调用，不执行 |
@@ -138,7 +145,8 @@ https://www.example.com/share/base/form/shrbcvST8eZy0vk8zjVZ1CAXNye
 ```bash
 lark-cli base +form-submit \
   --share-token shrbcvST8eZy0vk8zjVZ1CAXNye \
-  --json '{"fields":{...}}'
+  --json '{"fields":{...}}' \
+  --yes
 ```
 
 ## 输出格式
@@ -158,6 +166,7 @@ lark-cli base +form-submit \
 
 ## 提示
 
+- **本命令为高风险写操作（high-risk-write），必须额外传递 `--yes` 确认**，否则返回 `confirmation_required` 并以非零码退出；`--dry-run` 预览除外
 - 本命令仅支持通过表单分享链接（share_token）提交，不支持通过 base_token + table_id + view_id 方式提交
 - **当 `--json` 包含 `attachments` 时，必须额外提供 `--base-token`**，因为附件上传到 Base Drive Media 需要指定目标 Base
 - 附件字段只需在 `--json.attachments` 中提供本地路径即可，CLI 自动完成校验、并行上传、Token 获取和合并写入

skills/lark-base/references/lark-base-record-batch-create.md

@@ -7,13 +7,13 @@
 ## 适用场景（重点）
 
 - 适合导入 CSV / Excel、外部系统一次性写入新数据。
-- 先把输入数据映射到合适的字段类型，再组装 `fields + rows`。
+- 先把每条输入数据映射为独立的字段对象，再组装到 `create_records`。
 
 ## 推荐命令
 
 ```bash
 lark-cli base +record-batch-create --base-token <base_token> --table-id <table_id> \
-  --json '{"fields":["标题","状态"],"rows":[["任务 A","Open"],["任务 B","Done"]]}'
+  --json '{"create_records":[{"标题":"任务 A","状态":"Open"},{"标题":"任务 B","状态":"Done"}]}'
 
 lark-cli base +record-batch-create --base-token <base_token> --table-id <table_id> --json @batch-create.json
 ```
@@ -34,23 +34,25 @@ lark-cli base +record-batch-create --base-token <base_token> --table-id <table_i
 
 本节只说明 `+record-batch-create` 的外层 JSON 形状；CellValue 统一看 [lark-base-cell-value.md](lark-base-cell-value.md)。
 
-对象形态：`{"fields":[...],"rows":[...]}`。
+对象形态：
+
+```json
+{"create_records":[{"标题":"任务 A","状态":"Open"},{"标题":"任务 B","状态":"Done"}]}
+```
 
 | 字段 | 类型 | 必填 | 说明 |
 |------|------|------|------|
-| `fields` | `string[]` | 是 | 字段 ID 或字段名数组 |
-| `rows` | `CellValue[][]` | 是 | 二维数组，每一行按 `fields` 同序给 cell；单次最多 200 行 |
+| `create_records` | `Array<Map<FieldNameOrID, CellValue>>` | 是 | 记录字段对象数组；每条记录可以提交不同字段，单次最多 200 条 |
 
 ## 返回重点
 
-返回 `fields`、`field_id_list`、`record_id_list`、`data`，其中 `data` 与 `fields` 列顺序对齐。
+返回 `record_id_list` 和可选的 `ignored_fields`。
 
 ## 坑点
 
-- `fields` 与每行 `rows` 的列顺序必须一一对应。
-- 空单元格必须显式用 `null` 填充。
-- 单次最多 200 行，超出需分批写入。
-- select 写入未知选项时平台可能自动新增选项；如果不是要新增选项，先确认真实选项名。
+- 每个 `create_records` 元素都是独立的记录字段对象，只提交该记录需要写入的字段。
+- 单次最多 200 条，超出需分批写入。
+- `select` 字段只支持写入字段中已有的选项；构造 CellValue 前先用 `+field-list` 或 `+field-search-options` 确认目标选项存在。
 
 ## 参考
 

skills/lark-base/references/lark-base-record-upsert.md

@@ -55,7 +55,7 @@ lark-cli base +record-upsert --base-token <base_token> --table-id <table_id> --r
 ## 坑点
 
 - 有 `--record-id` 就一定更新；不传就一定创建，不会自动查重或按业务键 upsert。
-- select 写入未知选项时平台可能自动新增选项；如果不是要新增选项，先用 `+field-list` / `+field-search-options` 确认真实选项名。
+- `select` 字段只支持写入字段中已有的选项；构造 CellValue 前先用 `+field-list` 或 `+field-search-options` 确认目标选项存在。
 - 这是写入操作，执行前必须确认目标表和字段。
 
 ## 参考

skills/lark-doc/references/lark-doc-xml.md

@@ -13,7 +13,7 @@ p, h1-h9, ul, ol, li, table, thead, tbody, tr, th, td, blockquote, pre, code, hr
 ## 容器标签
 |标签|说明|关键属性|
 |-|-|-|
-| `<callout>` | 高亮框，子块仅支持文本、标题、列表、待办、引用 | `emoji`(默认 bulb), `background-color`, `border-color`, `text-color` |
+| `<callout>` | 高亮框，子块仅支持文本块（如 `<p>`）、标题、列表、待办、引用；禁止裸文本及 `<table>`、`<img>`、`<pre>`、`<hr>`、`<grid>`、`<whiteboard>`、`<sheet>` 等其他块级标签或资源块 | `emoji`(默认 bulb), `background-color`, `border-color`, `text-color` |
 | `<grid>` + `<column>` | 分栏布局，各列 width-ratio 之和为 1 | `width-ratio` |
 | `<whiteboard>` | 嵌入画板 | `type`: `blank` \| `mermaid` \| `plantuml` \| `svg` |
 | `<pre>` | （代码块，内含 `code`）| `lang`, `caption` |

skills/lark-drive/references/lark-drive-search.md

@@ -96,6 +96,7 @@ lark-cli drive +search --query 方案 --page-token '<PAGE_TOKEN>'
 - "某项目发布会重点" → 先搜项目名 + "发布会" + "重点/功能/一览"，再按标题和摘要判断是否需要只搜标题或扩大到正文。
 
 每轮扩展都要保留非污染、可解释的 evidence（URL/token/标题/摘要）；不能因为某个扩展词搜到高相似标题就跳过证据核验。
+扩展 query 时，优先保留用户已经指定的空间、文件夹、群聊、人员、时间和类型等 filter；确需放宽检索范围时，先向用户说明原因并征得确认。
 
 ## 参数
 

skills/lark-im/references/card/card-2.0-schema.md

@@ -29,7 +29,7 @@ Card 2.0 组件按**容器 / 展示 / 交互**三类，均通过 `tag` 字段声
     "title":    { "tag": "plain_text", "content": "卡片标题" },
     "subtitle": { "tag": "plain_text", "content": "副标题：一句上下文（时间/来源/状态）" },
     "template": "blue",
-    "icon": { "tag": "standard_icon", "token": "notice_colorful" },
+    "icon": { "tag": "standard_icon", "token": "lark-logo_colorful" },
     "text_tag_list": [
       { "tag": "text_tag", "text": { "tag": "plain_text", "content": "状态标签" }, "color": "blue" }
     ]

skills/lark-im/references/card/lark-im-card-style.md

@@ -105,12 +105,12 @@
 "header": {
   "title": { "tag": "plain_text", "content": "卡片标题" },
   "template": "blue",
-  "icon": { "tag": "standard_icon", "token": "mail_colorful" }
+  "icon": { "tag": "standard_icon", "token": "calendar_colorful" }
 }
 ```
 
-- `token` 从 `resource/icons.md` 按场景选取；彩色图标用 `*_colorful` 后缀，单色用普通名称。
-- 常用速查：通知 `notice_colorful`、告警 `warning_colorful`、审批 `approve_colorful`、日历 `calendar_colorful`、数据 `chart_colorful`、任务 `todo_colorful`、AI `myai_colorful`。
+- `token` 必须从 `resource/icons.md` 的精确枚举中选择；禁止根据名称规律自行拼接 token。没有合适的 token 时省略 icon。
+- 场景速查：日历 `calendar_colorful`、待办 `todo_colorful`、投票 `vote_colorful`、妙记 `file-lark-minutes_colorful`、多维表格 `wiki-bitable_colorful`、表单 `file-form_colorful`、社区 `larkcommunity_colorful`、招聘 `hirelogo_colorful`、飞书品牌 `lark-logo_colorful`、Meego `meego_colorful`、AI `myai_colorful`、aPaaS `apaas_colorful`、审批 `approval_colorful`、通用 AI `ai-common_colorful`。
 
 ### 1. 配色纪律（服务 P6 语义一致）
 
@@ -212,7 +212,7 @@ header 有三层能力，**尽量用满**（至少用 `title` + `icon`；`subtit
   "title":    { "tag": "plain_text", "content": "发版审批" },
   "subtitle": { "tag": "plain_text", "content": "2026-06-25 · 后端服务" },
   "template": "blue",
-  "icon": { "tag": "standard_icon", "token": "approve_colorful" },
+  "icon": { "tag": "standard_icon", "token": "approval_colorful" },
   "text_tag_list": [
     { "tag": "text_tag", "text": { "tag": "plain_text", "content": "待审批" }, "color": "yellow" }
   ]

skills/lark-im/references/card/resource/icons.md

@@ -34,5 +34,19 @@
 | 通知/铃铛 | `bell_outlined` | 定位 | `pin_outlined` |
 | 附件 | `attachment_outlined` | 审批 | `approval_outlined` |
 
+## 彩色图标（精确 token）
+
+彩色图标必须从下表按**完整字符串**选择，禁止根据名称规律自行拼接。彩色 token 自带颜色，不要再推导其他后缀或变体。
+
+| 含义 | token | 含义 | token |
+|---|---|---|---|
+| 日历 | `calendar_colorful` | 待办 | `todo_colorful` |
+| 投票 | `vote_colorful` | 飞书妙记 | `file-lark-minutes_colorful` |
+| 多维表格 | `wiki-bitable_colorful` | 表单 | `file-form_colorful` |
+| 飞书社区 | `larkcommunity_colorful` | 招聘 | `hirelogo_colorful` |
+| 飞书品牌 | `lark-logo_colorful` | Meego | `meego_colorful` |
+| AI | `myai_colorful` | aPaaS | `apaas_colorful` |
+| 审批 | `approval_colorful` | 通用 AI | `ai-common_colorful` |
+
 > token 必须与官方完全一致，否则图标不渲染。上表为常用项，全量（数百个，分系统/商务/沟通/用户/媒体/文档等类目）以官方图标库为准：
 > https://open.larkoffice.com/document/feishu-cards/enumerations-for-icons

skills/lark-slides/SKILL.md

@@ -101,9 +101,9 @@ metadata:
 
 **CRITICAL — 新建演示文稿或大幅改写页面时，规划 `asset_need` MUST 遵循 [asset-planning.md](references/asset-planning.md)：只做元数据规划，必须有 `fallback_if_missing`，不得要求真实搜索、下载或上传素材。**
 
-**CRITICAL — 将完整 `<slide>` XML 提交给 `slides +create --slides`、`xml_presentation.slide create` 或 `slides +replace-pages` 之前，MUST 先把待提交 XML 保存到本地文件并运行 [`scripts/xml_text_overlap_lint.py`](scripts/xml_text_overlap_lint.py)；`summary.error_count` 必须为 0 才能调用接口。**
+**CRITICAL — 将完整 `<slide>` XML 提交给 `slides +create --slides`、`xml_presentation.slide create` 或 `slides +replace-pages` 之前，MUST 先把待提交 XML 保存到本地文件并运行唯一版式准出入口 [`scripts/xml_text_overlap_lint.py`](scripts/xml_text_overlap_lint.py)；`summary.error_count` 必须为 0 才能调用接口，`summary.warning_count > 0` 时必须先做对应页面的截图复核。**
 
-**CRITICAL — 创建或大幅改写后，MUST 按 [validation-checklist.md](references/validation-checklist.md) 做显式验证：回读全文 XML、核对页数和关键元素、检查空白/破损页、明显溢出、布局风险；XML 语法和文本重叠静态检查优先使用 [`scripts/xml_text_overlap_lint.py`](scripts/xml_text_overlap_lint.py)。**
+**CRITICAL — 创建或大幅改写后，MUST 按 [validation-checklist.md](references/validation-checklist.md) 做显式验证：回读全文 XML、核对页数和关键元素，并使用 [`scripts/xml_text_overlap_lint.py`](scripts/xml_text_overlap_lint.py) 统一检查 XML、越界、重叠、空白页和内容稀疏风险。**
 
 **CRITICAL — 创建前自检或失败排障时，MUST 按 [troubleshooting.md](references/troubleshooting.md) 检查 XML 转义、结构、shell 截断、图片 token、3350001 和布局风险。**
 

skills/lark-slides/references/lark-slides-screenshot.md

@@ -4,7 +4,7 @@
 
 获取幻灯片页面截图并保存为本地图片文件。默认用于已存在 PPT 页面截图；传入 `--content` 时用于直接渲染单个 `<slide>` XML 片段预览。本 shortcut 会在 CLI 进程内解码并写入文件，stdout 只返回文件路径、大小、页面 ID 等元信息，避免把图片 Base64 输出给模型。
 
-注意：该截图能力受应用白名单限制，绝大多数应用不可用。截图失败时不要引导用户申请 `slides:presentation:screenshot` 权限；记录错误后降级到 XML 读回、结构 lint、文本重叠检查等非截图检查路径。
+截图失败则降级到 XML 读回、结构 lint等非截图检查路径。
 
 ## 命令
 
@@ -26,8 +26,8 @@ lark-cli slides +screenshot --as user \
 | 参数 | 必需 | 说明 |
 |------|------|------|
 | `--presentation` | list 模式必需 | `xml_presentation_id`、`/slides/` URL，或解析后为 slides 的 `/wiki/` URL。传 `--content` 时不能使用 |
-| `--slide-id` | list 模式至少提供 `--slide-id` / `--slide-number` 之一 | 页面 short ID；多页截图时重复传入；一次最多 10 页（`--slide-id` + `--slide-number` 合计小于等于 10） |
-| `--slide-number` | list 模式至少提供 `--slide-id` / `--slide-number` 之一 | 页面页号；多页截图时重复传入；一次最多 10 页（`--slide-id` + `--slide-number` 合计小于等于 10） |
+| `--slide-id` | list 模式至少提供 `--slide-id` / `--slide-number` 之一 | 页面 short ID；多页截图时重复传入，或用逗号分隔一次传多个（如 `--slide-id slide_1,slide_2`）；一次最多 10 页（`--slide-id` + `--slide-number` 合计小于等于 10） |
+| `--slide-number` | list 模式至少提供 `--slide-id` / `--slide-number` 之一 | 页面页号；多页截图时重复传入，或用逗号分隔一次传多个（如 `--slide-number 1,2,3`）；一次最多 10 页（`--slide-id` + `--slide-number` 合计小于等于 10） |
 | `--content` | render 模式必需 | 要直接渲染的 `<slide>` XML 片段；支持直接传值、`@file`、`-` stdin。传入后不能同时传 `--slide-id` / `--slide-number` |
 | `--output-dir` | 否 | 输出目录，默认 `.lark-slides/screenshots`；必须是当前目录内的相对路径 |
 | `--output-name` | 否 | render 模式的输出文件名 stem；未指定时优先用返回的 `slide_id`，否则用 `rendered-slide`。若目标文件已存在，会自动追加递增后缀避免覆盖 |
@@ -44,7 +44,7 @@ lark-cli slides +screenshot --as user \
 
 ### 多页截图
 
-一次不要超过 10 页；如需更多页面，分批调用。
+一次不要超过 10 页；如需更多页面，分批调用。可以重复传参，也可以用逗号分隔一次传多个：
 
 ```bash
 lark-cli slides +screenshot --as user \

skills/lark-slides/references/troubleshooting.md

@@ -19,7 +19,7 @@
 2. 用 `slides +xml-get` 回读，确认是否已有部分页面写入。
 3. 检查失败页是否含未转义字符：`Q&A -> Q&amp;A`，文本 `<` / `>` 写成 `&lt;` / `&gt;`，属性 URL `a=1&b=2 -> a=1&amp;b=2`。
 4. 检查标签闭合、属性引号、`<content>` 结构，以及 `<slide>` 直接子元素。
-5. 页面空白、溢出、重叠或越界时，按 [validation-checklist.md](validation-checklist.md) 运行 XML 文本重叠检查，并人工核对越界、截断、图文压盖等视觉风险；工具当前只会报告 `xml_not_well_formed` / `bbox_overlap`。
+5. 页面空白、溢出、重叠或越界时，按 [validation-checklist.md](validation-checklist.md) 运行 `xml_text_overlap_lint.py`；先修复所有 `error`，再对 `warning` 指向的页面和元素做截图复核。
 6. 如果使用 `--slides '[...]'`，怀疑 shell 截断时直接切到两步创建：先 `slides +create`，再用 `xml_presentation.slide.create` 逐页添加。
 7. 局部问题用 `+replace-slide` 块级修正；整页结构要改时再用 `slide.delete` 旧页 + `slide.create` 新页。
 

skills/lark-slides/references/validation-checklist.md

@@ -25,19 +25,32 @@ lark-cli slides +xml-get --as user \
   --json
 ```
 
-## Automated XML Text Overlap Lint
+## Automated XML Layout Lint
 
-`slides +xml-get` 保存 XML 到本地文件后，优先运行 XML 语法和文本重叠静态检查：
+`slides +xml-get` 保存 XML 后，只运行统一版式准出入口。先取得当前已加载 `lark-slides/SKILL.md` 的父目录，记为 `<lark-slides-skill-dir>`；不要猜测全局安装路径。
 
 ```bash
-python3 skills/lark-slides/scripts/xml_text_overlap_lint.py --input <presentation.xml>
+python3 "<lark-slides-skill-dir>/scripts/xml_text_overlap_lint.py" --input <presentation.xml>
 ```
 
-通过标准：
+它一次检查 XML/SXSD 合法性、元素越界、文本重叠、空白页、文本高度风险、整页内容稀疏和大卡片内容覆盖率。大卡片自身 `<content>` 的估算文本面积与卡片内平级元素一起参与覆盖率并集计算。
 
-- `summary.error_count == 0`。任何 error 都必须先修复再交付。
-- 当前工具只检查 XML well-formed 和文本元素之间的明显重叠；它不检查越界、文本高度不足、图文压盖、表格/图表压盖或底部拥挤。
-- 该工具不能替代页数核对、关键内容核对或真实视觉验收。
+准出规则：
+
+- `summary.error_count > 0` 或 `summary.release_ready == false`：阻断创建、替换或交付，必须先修复。
+- `summary.warning_count > 0`：静态检查不直接阻断，但 `summary.screenshot_review_required == true`，必须复核对应页面截图。
+- `slides[].status` 为 `blocked`、`needs_screenshot_review` 或 `passed`，可直接决定逐页后续动作。
+- CLI 在存在 `error` 时退出码为 1；只有 `warning` 时仍输出 JSON 并退出 0，供截图复核链路继续执行。
+
+每条 `error` / `warning` 都包含：
+
+- `element_ids`：相关 XML 元素 ID；
+- `rule`：规则 ID、名称、阈值和比较关系；
+- `measurement`：越界量、交叠面积、覆盖率等实测值；
+- `related_objects`：相关对象的类型与坐标框；
+- `target`、`message`、`hint`：页码、语义说明和处理建议。
+
+当 `sparse_container_content.measurement.content_coverage_ratio < rule.threshold` 时，需要结合同页截图判断留白是否有意设计；不要仅凭 warning 自动扩充内容。
 
 常见 code 的处理方向：
 
@@ -51,6 +64,10 @@ python3 skills/lark-slides/scripts/xml_text_overlap_lint.py --input <presentatio
 | `icon_missing_fill_color` | 视觉规范要求 `<icon>` 设置 `<fill><fillColor color="..."/></fill>`，避免图标不可见 | 给 `<icon>` 添加显式非透明填充色，例如 `rgba(37, 99, 235, 1)` |
 | `icon_transparent_fill_color` | `<icon>` 的 `fillColor` 是透明色，不满足视觉可见性要求 | 改成与背景有足够对比的非透明颜色 |
 | `bbox_overlap` | 文本元素的估算绘制区域明显重叠 | 拉开文本坐标、缩小文本框/字号，或改成明确的分栏/分组结构 |
+| `*_out_of_canvas` | 元素边界超出页面画布 | 根据 `measurement.overflow` 移回画布或缩小尺寸 |
+| `blank_slide` | 页面没有画布内可见内容 | 补充主体内容；仅有空背景或空形状不能准出 |
+| `sparse_container_content` | 大卡片内容覆盖率低于阈值 | 按元素 ID 定位卡片，结合截图判断是否补充或放大内容 |
+| `sparse_slide_content` | 全页有效内容覆盖率偏低 | 复核截图，确认是否为有意留白 |
 
 ## Screenshot QA
 

skills/lark-slides/references/xml-schema-quick-ref.md

@@ -188,6 +188,13 @@ XSD 中的 `title`、`headline`、`sub-headline`、`body`、`caption` 主要出
 - `<shadow>`
 - `<content>`
 
+`type` 常用取值：`text`（文本框）、`rect`、`round-rect`（圆角矩形）、`ellipse`（椭圆/圆）、`triangle`、`diamond`、`parallelogram`、`trapezoid`、`custom`（配合 `path` 属性写 SVG 路径串）。箭头、星形、标注气泡、`chevron`、`flow-chart-*` 等更多形状见 XSD `ShapeType` 枚举。
+
+其它可选属性：
+
+- `presetHandlers`：控制点，用于圆角等。例如 `<shape type="rect" presetHandlers="60">` = 圆角半径 60px 的圆角矩形；多个控制点用逗号分隔。
+- `path`：仅 `type="custom"` 时使用，SVG 路径串。
+
 ### line
 
 ```xml
@@ -198,6 +205,16 @@ XSD 中的 `title`、`headline`、`sub-headline`、`body`、`caption` 主要出
 
 `line` 使用的是 `startX` / `startY` / `endX` / `endY`，不是 `x1` / `y1` / `x2` / `y2`。
 
+### polyline
+
+折线 / 曲线连接线，用外接矩形定位（`topLeftX` / `topLeftY` / `width` / `height`），不是端点坐标；`<border>` 必填（无 border 不可见）。`type` 默认 `bent-connector2`（可选 `bent-connector2-5` 折线 / `curved-connector2-5` 曲线）。
+
+```xml
+<polyline topLeftX="120" topLeftY="120" width="200" height="100">
+  <border color="rgb(43, 47, 54)" width="2"/>
+</polyline>
+```
+
 ### img
 
 ```xml
@@ -238,6 +255,7 @@ XSD 中的 `title`、`headline`、`sub-headline`、`body`、`caption` 主要出
 - `<colgroup>` 直接子元素只有 `<col width="...">`，width 定义列宽，默认 110。
 - `<tr height="...">` 直接子元素只有 `<td>`，height 定义行高，默认 37。
 - `<td>` 直接子元素只有 `<fill>`（背景）、`<content>`（文字）和边框配置（一般不用），不能嵌套 `<shape>`、`<img>`、`<icon>`。
+- 合并单元格：`<td>` 上用 `colspan`（跨列，默认 1）和 `rowspan`（跨行，默认 1）；被合并覆盖的单元格不再写对应 `<td>`。
 
 表头默认的白底白字视觉效果极差，必须设置背景和文字颜色，需在首行每个 `<td>` 上加 `<fill>`（配合 `bold` 与对比文字色）与正文行区分。
 

skills/lark-slides/scripts/xml_text_overlap_lint.py

@@ -1,6 +1,7 @@
 #!/usr/bin/env python3
 # Copyright (c) 2026 Lark Technologies Pte. Ltd.
 # SPDX-License-Identifier: MIT
+"""Validate Slides XML structure and page layout through one release gate."""
 
 from __future__ import annotations
 
@@ -42,18 +43,25 @@ ROUNDTRIP_SXSD_ATTRS = {
     ("chart", "updated"),
     ("chartData", "isStaticData"),
 }
+# Slides readback echoes each chartField's CSV text as per-value <chartParsedValues> children;
+# it's server-emitted, absent from the write schema, and appears on virtually every chart-bearing
+# deck, so treating it as an unsupported tag would block per-slide linting document-wide.
+ROUNDTRIP_SXSD_TAGS = {"chartParsedValues"}
 DEFAULT_TABLE_COLUMN_WIDTH = 110
 DEFAULT_TABLE_ROW_HEIGHT = 37
+# Sub-pixel canvas overflow is floating-point rounding noise (e.g. rotated-bbox math), not a
+# visible defect; keep this well under 1px so real overflow is still always caught.
+CANVAS_OVERFLOW_TOLERANCE = 0.5
 _SXSD_TAG_ATTRIBUTES_CACHE: dict[str, set[str]] | None = None
 _ICONPARK_ICON_TYPES_CACHE: set[str] | None = None
 
 
-class XmlTextOverlapLintError(Exception):
+class XmlLayoutLintError(Exception):
     pass
 
 
 def fail(message: str) -> None:
-    raise XmlTextOverlapLintError(message)
+    raise XmlLayoutLintError(message)
 
 
 def read_file(file_path: str | Path) -> str:
@@ -79,8 +87,12 @@ def parse_args(argv: list[str]) -> dict[str, Any]:
 
 
 def extract_attribute(tag_source: str, name: str) -> str | None:
-    match = re.search(fr'{re.escape(name)}="([^"]+)"', tag_source)
-    return match.group(1) if match else None
+    match = re.search(
+        fr"(?:^|\s){re.escape(name)}\s*=\s*(?:\"([^\"]+)\"|'([^']+)')", tag_source
+    )
+    if not match:
+        return None
+    return match.group(1) if match.group(1) is not None else match.group(2)
 
 
 def extract_numeric_attribute(tag_source: str, name: str) -> int | float | None:
@@ -372,6 +384,8 @@ def validate_sxsd_tag_attributes(root: ET.Element) -> list[dict[str, Any]]:
 
         tag_name = xml_local_name(element.tag)
         current_path = f"{path}/{tag_name}" if path else tag_name
+        if tag_name in ROUNDTRIP_SXSD_TAGS:
+            return
         if tag_name not in supported_tags:
             issues.append(
                 {
@@ -632,8 +646,9 @@ def extract_elements(slide_xml: str) -> list[dict[str, Any]]:
 
     for match in re.finditer(r"<(shape|img|table|chart|whiteboard)\b([^>]*)>", slide_xml):
         kind, attrs = match.group(1), match.group(2)
+        is_self_closing = attrs.rstrip().endswith("/")
         content = ""
-        if kind in {"shape", "table"}:
+        if kind in {"shape", "table"} and not is_self_closing:
             close_index = slide_xml.find(f"</{kind}>", match.end())
             if close_index != -1:
                 content = slide_xml[match.end() : close_index]
@@ -1039,6 +1054,19 @@ def should_flag_horizontal_text_overflow(left: dict[str, Any], right: dict[str,
     return vertical_overlap >= min_vertical_overlap
 
 
+def horizontal_text_overflow_measurement(left: dict[str, Any], right: dict[str, Any]) -> dict[str, int | float]:
+    source, target = sorted([left, right], key=lambda element: element["x"])
+    visual_width = estimate_text_max_line_width(source)
+    source_visual_bbox = {"x": source["x"], "y": source["y"], "width": visual_width, "height": source["height"]}
+    width = intersection_width(source_visual_bbox, target)
+    height = intersection_height(source_visual_bbox, target)
+    return {
+        "intersection_width": round(width, 3),
+        "intersection_height": round(height, 3),
+        "intersection_area": round(width * height, 3),
+    }
+
+
 def should_flag_overlap(left: dict[str, Any], right: dict[str, Any]) -> bool:
     if is_text_element(left) and not has_text_content(left):
         return False
@@ -1166,9 +1194,6 @@ def detect_whiteboard_external_overlaps(
 
 def element_canvas_bbox(element: dict[str, Any]) -> dict[str, int | float]:
     bbox = {key: element[key] for key in ("x", "y", "width", "height")}
-    if element["kind"] != "chart" and not (element["kind"] == "shape" and element["type"] == "text"):
-        return bbox
-
     rotation = element["rotation"]
     if not isinstance(rotation, (int, float)) or not math.isfinite(rotation):
         rotation = 0
@@ -1194,12 +1219,7 @@ def detect_elements_out_of_canvas(
     elements: list[dict[str, Any]], slide_width: int | float, slide_height: int | float
 ) -> list[dict[str, Any]]:
     issues: list[dict[str, Any]] = []
-    for element in (
-        element
-        for element in elements
-        if element["kind"] in {"table", "chart"}
-        or (element["kind"] == "shape" and element["type"] == "text")
-    ):
+    for element in elements:
         bbox = element_canvas_bbox(element)
         overflow = {
             "left": max(-bbox["x"], 0),
@@ -1208,7 +1228,9 @@ def detect_elements_out_of_canvas(
             "bottom": max(bbox["y"] + bbox["height"] - slide_height, 0),
         }
         overflow_details = [
-            f"{side} by {amount:g}px" for side, amount in overflow.items() if amount > 0
+            f"{side} by {amount:g}px"
+            for side, amount in overflow.items()
+            if amount > CANVAS_OVERFLOW_TOLERANCE
         ]
         if not overflow_details:
             continue
@@ -1330,62 +1352,714 @@ def lint_slide(
                     "code": "bbox_overlap",
                     "elements": [left["id"], right["id"]],
                     "message": f'{left["id"]} overlaps {right["id"]}',
+                    "hint": "Move or resize the elements so their visual bounds no longer intersect.",
+                    **(
+                        {"measurement": horizontal_text_overflow_measurement(left, right)}
+                        if horizontal_overflow
+                        else {}
+                    ),
                 }
             )
 
-    return {"slide_number": slide_number, "element_count": len(elements), "issues": issues}
+    return {
+        "slide_number": slide_number,
+        "element_count": len(elements),
+        "elements": elements,
+        "issues": issues,
+    }
 
 
-def lint_xml(xml: str, source_path: str | None = None) -> dict[str, Any]:
-    root, xml_error = parse_xml_root(xml)
-    if xml_error:
-        return {
-            "file": source_path,
-            "slide_size": {"width": 960, "height": 540},
-            "summary": {"slide_count": 0, "error_count": 1, "warning_count": 0, "info_count": 0},
-            "issues": [xml_error],
-            "slides": [],
-        }
 
-    namespace_issues = validate_sml_tag_prefixes(xml)
-    sxsd_issues = validate_sxsd_tag_attributes(root) if root is not None else []
-    iconpark_issues = validate_iconpark_icon_types(root) if root is not None else []
-    top_level_issues = [*namespace_issues, *sxsd_issues, *iconpark_issues]
-    if namespace_issues:
-        error_count = sum(1 for issue in top_level_issues if issue["level"] == "error")
-        warning_count = sum(1 for issue in top_level_issues if issue["level"] == "warning")
-        info_count = sum(1 for issue in top_level_issues if issue["level"] == "info")
-        return {
-            "file": source_path,
-            "slide_size": {"width": 960, "height": 540},
-            "summary": {
-                "slide_count": 0,
-                "error_count": error_count,
-                "warning_count": warning_count,
-                "info_count": info_count,
-            },
-            "issues": top_level_issues,
-            "slides": [],
-        }
-    presentation = parse_presentation(xml)
-    slides = [
-        lint_slide(slide_xml, index + 1, presentation["width"], presentation["height"])
-        for index, slide_xml in enumerate(presentation["slides"])
+MIN_CONTAINER_WIDTH = 140
+MIN_CONTAINER_HEIGHT = 160
+MIN_SHORT_CARD_HEIGHT = 80
+MIN_CONTAINER_AREA = 20_000
+MIN_CONTENT_COVERAGE_RATIO = 0.15
+MIN_SLIDE_CONTENT_COVERAGE_RATIO = 0.035
+MIN_SLIDE_CONTENT_ELEMENT_COUNT = 4
+SHORT_CARD_SIZE_TOLERANCE_RATIO = 0.10
+MIN_SIMILAR_SHORT_CARD_COUNT = 2
+LARGE_VISUAL_CHILD_RATIO = 0.35
+LAYOUT_PANEL_SPAN_RATIO = 0.90
+IMAGE_OVERLAY_MATCH_RATIO = 0.90
+DENSITY_CONTAINMENT_TOLERANCE = 8
+
+
+def clipped_bbox(element: dict[str, Any], container: dict[str, Any]) -> dict[str, int | float] | None:
+    left = max(element["x"], container["x"])
+    top = max(element["y"], container["y"])
+    right = min(element["x"] + element["width"], container["x"] + container["width"])
+    bottom = min(element["y"] + element["height"], container["y"] + container["height"])
+    if right <= left or bottom <= top:
+        return None
+    return {"x": left, "y": top, "width": right - left, "height": bottom - top}
+
+
+def rectangle_union_area(rectangles: list[dict[str, int | float]]) -> int | float:
+    x_coordinates = sorted({coordinate for rect in rectangles for coordinate in (rect["x"], rect["x"] + rect["width"])})
+    area = 0
+    for left, right in zip(x_coordinates, x_coordinates[1:]):
+        intervals = sorted(
+            (rect["y"], rect["y"] + rect["height"])
+            for rect in rectangles
+            if rect["x"] < right and rect["x"] + rect["width"] > left
+        )
+        covered_height = 0
+        interval_end: int | float | None = None
+        for top, bottom in intervals:
+            if interval_end is None:
+                covered_height += bottom - top
+                interval_end = bottom
+            elif bottom > interval_end:
+                covered_height += bottom - max(top, interval_end)
+                interval_end = bottom
+        area += (right - left) * covered_height
+    return area
+
+
+def has_similar_short_card_peer(element: dict[str, Any], elements: list[dict[str, Any]]) -> bool:
+    return sum(
+        other is not element
+        and is_visually_rendered(other)
+        and other["kind"] == "shape"
+        and other["type"] == "rect"
+        and other["width"] >= MIN_CONTAINER_WIDTH
+        and other["height"] >= MIN_SHORT_CARD_HEIGHT
+        and element_area(other) >= MIN_CONTAINER_AREA
+        and abs(other["width"] - element["width"]) / max(other["width"], element["width"])
+        <= SHORT_CARD_SIZE_TOLERANCE_RATIO
+        and abs(other["height"] - element["height"]) / max(other["height"], element["height"])
+        <= SHORT_CARD_SIZE_TOLERANCE_RATIO
+        for other in elements
+    ) >= MIN_SIMILAR_SHORT_CARD_COUNT
+
+
+def is_layout_container(
+    element: dict[str, Any],
+    slide_width: int | float,
+    slide_height: int | float,
+    elements: list[dict[str, Any]] | None = None,
+) -> bool:
+    has_supported_height = element["height"] >= MIN_CONTAINER_HEIGHT or (
+        elements is not None
+        and element["height"] >= MIN_SHORT_CARD_HEIGHT
+        and has_similar_short_card_peer(element, elements)
+    )
+    return (
+        element["kind"] == "shape"
+        and element["type"] == "rect"
+        and is_visually_rendered(element)
+        and element["width"] >= MIN_CONTAINER_WIDTH
+        and has_supported_height
+        and element_area(element) >= MIN_CONTAINER_AREA
+        and not (
+            element["x"] <= 2
+            and element["y"] <= 2
+            and element["width"] >= slide_width - 4
+            and element["height"] >= slide_height - 4
+        )
+    )
+
+
+def is_edge_spanning_layout_panel(
+    element: dict[str, Any], slide_width: int | float, slide_height: int | float
+) -> bool:
+    touches_horizontal_edge = element["x"] <= 2 or element["x"] + element["width"] >= slide_width - 2
+    touches_vertical_edge = element["y"] <= 2 or element["y"] + element["height"] >= slide_height - 2
+    return (touches_horizontal_edge and element["height"] >= slide_height * LAYOUT_PANEL_SPAN_RATIO) or (
+        touches_vertical_edge and element["width"] >= slide_width * LAYOUT_PANEL_SPAN_RATIO
+    )
+
+
+def has_matching_image_overlay(container: dict[str, Any], elements: list[dict[str, Any]]) -> bool:
+    container_area = element_area(container)
+    return any(
+        element["kind"] == "img"
+        and is_visually_rendered(element)
+        and intersection_area(container, element) / max(1, container_area) >= IMAGE_OVERLAY_MATCH_RATIO
+        for element in elements
+    )
+
+
+def is_nested_in_layout_panel(
+    container: dict[str, Any], elements: list[dict[str, Any]], slide_width: int | float, slide_height: int | float
+) -> bool:
+    return any(
+        element is not container
+        and element["kind"] == "shape"
+        and element["type"] == "rect"
+        and is_visually_rendered(element)
+        and is_edge_spanning_layout_panel(element, slide_width, slide_height)
+        and contains(element, container, tolerance=DENSITY_CONTAINMENT_TOLERANCE)
+        for element in elements
+    )
+
+
+def extract_density_elements(slide_xml: str) -> list[dict[str, Any]]:
+    elements = extract_elements(slide_xml)
+    elements_by_id = {element["id"]: element for element in elements}
+    root = ET.fromstring(slide_xml)
+    for node in root.iter():
+        if xml_local_name(node.tag) != "shape":
+            continue
+        element = elements_by_id.get(node.attrib.get("id", ""))
+        if element is None:
+            continue
+        content_node = next(
+            (child for child in node if xml_local_name(child.tag) == "content"),
+            None,
+        )
+        paragraphs = (
+            [
+                " ".join("".join(paragraph.itertext()).split())
+                for paragraph in content_node.iter()
+                if xml_local_name(paragraph.tag) == "p"
+            ]
+            if content_node is not None
+            else []
+        )
+        raw_font_size = (
+            content_node.attrib.get("fontSize") if content_node is not None else None
+        ) or node.attrib.get("fontSize")
+        try:
+            base_font_size = float(raw_font_size or 16)
+        except ValueError:
+            base_font_size = 16.0
+        element.update(
+            {
+                "textType": content_node.attrib.get("textType") if content_node is not None else None,
+                "textAlign": content_node.attrib.get("textAlign") if content_node is not None else None,
+                "autoFit": content_node.attrib.get("autoFit") if content_node is not None else None,
+                "fontSize": base_font_size,
+                "text": "\n".join(paragraph for paragraph in paragraphs if paragraph),
+            }
+        )
+        if not has_text_content(element):
+            continue
+        declared_font_sizes = []
+        for descendant in node.iter():
+            raw_declared_font_size = descendant.attrib.get("fontSize")
+            if raw_declared_font_size is None:
+                continue
+            try:
+                declared_font_sizes.append(float(raw_declared_font_size))
+            except ValueError:
+                continue
+        if declared_font_sizes:
+            element["fontSize"] = max(declared_font_sizes)
+    for match in re.finditer(r"<icon\b([^>]*)>", slide_xml):
+        attrs = match.group(1)
+        x = extract_numeric_attribute(attrs, "topLeftX")
+        y = extract_numeric_attribute(attrs, "topLeftY")
+        width = extract_numeric_attribute(attrs, "width")
+        height = extract_numeric_attribute(attrs, "height")
+        if any(value is None for value in (x, y, width, height)):
+            continue
+        icon_alpha = extract_numeric_attribute(attrs, "alpha")
+        elements.append(
+            {
+                "id": extract_attribute(attrs, "id") or f"icon-{len(elements) + 1}",
+                "kind": "icon",
+                "type": "icon",
+                "x": x,
+                "y": y,
+                "width": width,
+                "height": height,
+                "rotation": extract_numeric_attribute(attrs, "rotation") or 0,
+                "alpha": icon_alpha if icon_alpha is not None else 1,
+                "order": len(elements),
+            }
+        )
+    for match in re.finditer(r"<polyline\b([^>]*)>", slide_xml):
+        attrs = match.group(1)
+        x = extract_numeric_attribute(attrs, "topLeftX")
+        y = extract_numeric_attribute(attrs, "topLeftY")
+        width = extract_numeric_attribute(attrs, "width")
+        height = extract_numeric_attribute(attrs, "height")
+        if any(value is None for value in (x, y, width, height)):
+            continue
+        polyline_alpha = extract_numeric_attribute(attrs, "alpha")
+        elements.append(
+            {
+                "id": extract_attribute(attrs, "id") or f"polyline-{len(elements) + 1}",
+                "kind": "polyline",
+                "type": "polyline",
+                "x": x,
+                "y": y,
+                "width": width,
+                "height": height,
+                "rotation": extract_numeric_attribute(attrs, "rotation") or 0,
+                "alpha": polyline_alpha if polyline_alpha is not None else 1,
+                "order": len(elements),
+            }
+        )
+    for line_element in extract_line_elements(slide_xml):
+        line_element["order"] = len(elements)
+        elements.append(line_element)
+    return elements
+
+
+def is_visually_rendered(element: dict[str, Any]) -> bool:
+    return element.get("alpha", 1) > 0
+
+
+def visual_bbox(element: dict[str, Any], container: dict[str, Any]) -> dict[str, int | float] | None:
+    if not is_visually_rendered(element):
+        return None
+    if is_text_element(element):
+        estimated = estimate_text_visual_bbox(element)
+        return clipped_bbox(estimated, container) if estimated else None
+    return clipped_bbox(element, container)
+
+
+def own_text_visual_bbox(container: dict[str, Any]) -> dict[str, int | float] | None:
+    if container["kind"] != "shape" or not has_text_content(container):
+        return None
+    text_proxy = {**container, "type": "text"}
+    estimated = estimate_text_visual_bbox(text_proxy)
+    return clipped_bbox(estimated, container) if estimated else None
+
+
+def slide_content_visual_bbox(
+    element: dict[str, Any], slide_bbox: dict[str, int | float]
+) -> dict[str, int | float] | None:
+    if not is_visually_rendered(element):
+        return None
+    if is_text_element(element):
+        estimated = estimate_text_visual_bbox(element)
+        return clipped_bbox(estimated, slide_bbox) if estimated else None
+    if element["kind"] == "shape" and has_text_content(element):
+        estimated = own_text_visual_bbox(element)
+        return clipped_bbox(estimated, slide_bbox) if estimated else None
+    if element["kind"] == "line":
+        # a straight horizontal/vertical line has zero width or height in one axis; clipped_bbox
+        # treats zero-area rects as invisible, so pad to its rendered stroke thickness instead.
+        return clipped_bbox(line_stroke_bbox(element), slide_bbox)
+    if element["kind"] in {"img", "chart", "table", "whiteboard", "icon", "polyline"}:
+        return clipped_bbox(element, slide_bbox)
+    return None
+
+
+def line_stroke_bbox(element: dict[str, Any]) -> dict[str, Any]:
+    return {**element, "width": max(element["width"], 1), "height": max(element["height"], 1)}
+
+
+def is_slide_content_present(
+    element: dict[str, Any], slide_bbox: dict[str, int | float]
+) -> bool:
+    # Deliberately permissive, unlike slide_content_visual_bbox: blank_slide is asking "is
+    # *anything* rendered here", not the richer "counts toward meaningful content density" bar
+    # that sparse_slide_content/sparse_container_content apply. A plain shape with no text (a
+    # decorative rect/ellipse/etc.), <undefined>, or any future SXSD data element should all
+    # count here — deny-list only what's actually invisible (alpha<=0 or zero on-canvas area)
+    # instead of maintaining an allow-list that silently treats unlisted kinds as blank.
+    if not is_visually_rendered(element):
+        return False
+    if (
+        element["kind"] == "shape"
+        and element["type"] == "rect"
+        and not has_text_content(element)
+        and element["x"] <= 2
+        and element["y"] <= 2
+        and element["width"] >= slide_bbox["width"] - 4
+        and element["height"] >= slide_bbox["height"] - 4
+    ):
+        # A full-canvas plain rect is a background panel, not content -- same reasoning as
+        # is_layout_container's existing background exclusion. A slide with nothing else on it
+        # is still effectively blank.
+        return False
+    bbox = line_stroke_bbox(element) if element["kind"] == "line" else element
+    return clipped_bbox(bbox, slide_bbox) is not None
+
+
+def is_large_visual_child(element: dict[str, Any], container: dict[str, Any]) -> bool:
+    if element["kind"] not in {"img", "chart", "table", "whiteboard"}:
+        return False
+    if not is_visually_rendered(element):
+        return False
+    return element_area(element) / element_area(container) >= LARGE_VISUAL_CHILD_RATIO
+
+
+def detect_sparse_container_content(
+    elements: list[dict[str, Any]], slide_number: int, slide_width: int | float, slide_height: int | float
+) -> list[dict[str, Any]]:
+    issues: list[dict[str, Any]] = []
+    for container in (
+        element for element in elements if is_layout_container(element, slide_width, slide_height, elements)
+    ):
+        if (
+            is_edge_spanning_layout_panel(container, slide_width, slide_height)
+            or is_nested_in_layout_panel(container, elements, slide_width, slide_height)
+            or has_matching_image_overlay(container, elements)
+        ):
+            continue
+        children = [
+            element
+            for element in elements
+            if element is not container
+            and contains(container, element, tolerance=DENSITY_CONTAINMENT_TOLERANCE)
+        ]
+        if any(is_large_visual_child(child, container) for child in children):
+            continue
+        own_text_bbox = own_text_visual_bbox(container)
+        rectangles = ([own_text_bbox] if own_text_bbox else []) + [
+            bbox for child in children if (bbox := visual_bbox(child, container)) is not None
+        ]
+        content_area = rectangle_union_area(rectangles) if rectangles else 0
+        coverage_ratio = content_area / element_area(container)
+        if coverage_ratio >= MIN_CONTENT_COVERAGE_RATIO:
+            continue
+        issues.append(
+            {
+                "level": "warning",
+                "code": "sparse_container_content",
+                "target": {
+                    "slide_number": slide_number,
+                    "container_id": container["id"],
+                    "container_type": container["type"],
+                    "bbox": {key: container[key] for key in ("x", "y", "width", "height")},
+                },
+                "rule": {
+                    "name": "large_container_visible_content_coverage",
+                    "threshold": MIN_CONTENT_COVERAGE_RATIO,
+                    "comparison": "content_coverage_ratio < threshold",
+                },
+                "measurement": {
+                    "container_area": element_area(container),
+                    "visible_content_area": round(content_area, 3),
+                    "content_coverage_ratio": round(coverage_ratio, 3),
+                    "content_element_count": len(children) + (1 if own_text_bbox else 0),
+                },
+                "elements": [container["id"], *[child["id"] for child in children]],
+            }
+        )
+    return issues
+
+
+def detect_sparse_slide_content(
+    elements: list[dict[str, Any]], slide_number: int, slide_width: int | float, slide_height: int | float
+) -> list[dict[str, Any]]:
+    slide_bbox = {"x": 0, "y": 0, "width": slide_width, "height": slide_height}
+    content = [
+        (element, bbox)
+        for element in elements
+        if (bbox := slide_content_visual_bbox(element, slide_bbox)) is not None
     ]
-    error_count = sum(1 for issue in top_level_issues if issue["level"] == "error")
-    error_count += sum(1 for slide in slides for issue in slide["issues"] if issue["level"] == "error")
-    warning_count = sum(1 for issue in top_level_issues if issue["level"] == "warning")
-    warning_count += sum(1 for slide in slides for issue in slide["issues"] if issue["level"] == "warning")
-    info_count = sum(1 for issue in top_level_issues if issue["level"] == "info")
-    info_count += sum(1 for slide in slides for issue in slide["issues"] if issue["level"] == "info")
-    result = {
+    if len(content) < MIN_SLIDE_CONTENT_ELEMENT_COUNT:
+        return []
+    content_area = rectangle_union_area([bbox for _, bbox in content])
+    slide_area = slide_width * slide_height
+    coverage_ratio = content_area / slide_area
+    if coverage_ratio >= MIN_SLIDE_CONTENT_COVERAGE_RATIO:
+        return []
+    return [
+        {
+            "level": "warning",
+            "code": "sparse_slide_content",
+            "target": {
+                "slide_number": slide_number,
+                "bbox": slide_bbox,
+            },
+            "rule": {
+                "name": "slide_visible_content_coverage",
+                "threshold": MIN_SLIDE_CONTENT_COVERAGE_RATIO,
+                "comparison": "content_coverage_ratio < threshold",
+            },
+            "measurement": {
+                "slide_area": slide_area,
+                "visible_content_area": round(content_area, 3),
+                "content_coverage_ratio": round(coverage_ratio, 3),
+                "content_element_count": len(content),
+            },
+            "elements": [element["id"] for element, _ in content],
+        }
+    ]
+
+
+def detect_blank_slide(
+    elements: list[dict[str, Any]],
+    slide_number: int,
+    slide_width: int | float,
+    slide_height: int | float,
+) -> list[dict[str, Any]]:
+    slide_bbox = {"x": 0, "y": 0, "width": slide_width, "height": slide_height}
+    visible_elements = [
+        element for element in elements if is_slide_content_present(element, slide_bbox)
+    ]
+    if visible_elements:
+        return []
+    return [
+        {
+            "level": "error",
+            "code": "blank_slide",
+            "schema_version": "2.0",
+            "target": {"slide_number": slide_number},
+            "rule": {
+                "name": "slide_has_visible_content",
+                "comparison": "visible_element_count == 0",
+            },
+            "measurement": {
+                "visible_element_count": 0,
+                "declared_element_count": len(elements),
+            },
+            "elements": [element["id"] for element in elements],
+            "message": "slide has no visible content beyond empty layout shapes",
+            "hint": "Add visible text, an image, a chart, a table, a whiteboard, or an icon before creating the slide.",
+        }
+    ]
+
+
+
+RULE_METADATA: dict[str, dict[str, Any]] = {
+    "xml_not_well_formed": {
+        "name": "xml_is_well_formed",
+        "comparison": "xml_parse_error == false",
+    },
+    "sml_prefixed_tag": {
+        "name": "sml_uses_default_namespace",
+        "comparison": "prefixed_sml_tag_count == 0",
+    },
+    "sxsd_unsupported_tag": {
+        "name": "tag_is_supported_by_slides_xml_schema",
+        "comparison": "unsupported_tag_count == 0",
+    },
+    "sxsd_unsupported_attr": {
+        "name": "attribute_is_supported_by_slides_xml_schema",
+        "comparison": "unsupported_attribute_count == 0",
+    },
+    "icon_missing_fill_color": {
+        "name": "icon_has_visible_fill_color",
+        "comparison": "fill_color_present == true",
+    },
+    "icon_transparent_fill_color": {
+        "name": "icon_has_visible_fill_color",
+        "comparison": "fill_alpha > 0",
+    },
+    "iconpark_unsupported_icon_type": {
+        "name": "iconpark_type_is_supported",
+        "comparison": "icon_type in iconpark_index",
+    },
+    "bbox_overlap": {
+        "name": "text_visual_bounds_do_not_overlap",
+        "comparison": "intersection_area == 0",
+    },
+    "text_may_overflow_shape": {
+        "name": "estimated_text_fits_declared_shape",
+        "comparison": "estimated_height <= available_height",
+    },
+    "whiteboard_external_overlap": {
+        "name": "whiteboard_does_not_cross_sibling_content",
+        "comparison": "external_overlap_count == 0",
+    },
+    "image_covers_text": {
+        "name": "image_does_not_cover_text",
+        "comparison": "intersection_area == 0",
+    },
+    "image_may_cover_vertical_text": {
+        "name": "image_vertical_text_occlusion_requires_review",
+        "comparison": "intersection_area == 0",
+    },
+    "table_resolved_size_mismatch": {
+        "name": "table_declared_size_matches_resolved_grid",
+        "comparison": "declared_size == resolved_size",
+    },
+    "blank_slide": {
+        "name": "slide_has_visible_content",
+        "comparison": "visible_element_count > 0",
+    },
+}
+
+
+def issue_rule(issue: dict[str, Any]) -> dict[str, Any]:
+    if issue.get("rule"):
+        return {**issue["rule"], "id": issue["code"]}
+    if issue["code"].endswith("_out_of_canvas"):
+        return {
+            "id": issue["code"],
+            "name": "element_stays_within_slide_canvas",
+            "comparison": "max(left, top, right, bottom overflow) == 0",
+        }
+    return {
+        "id": issue["code"],
+        **RULE_METADATA.get(
+            issue["code"],
+            {"name": issue["code"], "comparison": "violation_count == 0"},
+        ),
+    }
+
+
+def issue_measurement(
+    issue: dict[str, Any], elements_by_id: dict[str, dict[str, Any]]
+) -> dict[str, Any]:
+    if issue.get("measurement") is not None:
+        return issue["measurement"]
+    if issue["code"] == "bbox_overlap" and len(issue.get("elements", [])) == 2:
+        left = elements_by_id.get(issue["elements"][0])
+        right = elements_by_id.get(issue["elements"][1])
+        if left and right:
+            left_box = (estimate_text_visual_bbox(left) if is_text_element(left) else None) or left
+            right_box = (estimate_text_visual_bbox(right) if is_text_element(right) else None) or right
+            width = intersection_width(left_box, right_box)
+            height = intersection_height(left_box, right_box)
+            return {
+                "intersection_width": round(width, 3),
+                "intersection_height": round(height, 3),
+                "intersection_area": round(width * height, 3),
+            }
+    if issue["code"].endswith("_out_of_canvas"):
+        return {
+            "canvas": issue.get("canvas"),
+            "bbox": issue.get("bbox"),
+            "overflow": issue.get("overflow"),
+        }
+    measurement_keys = (
+        "line",
+        "column",
+        "tag",
+        "attr",
+        "iconType",
+        "line_count",
+        "line_height",
+        "estimated_height",
+        "available_height",
+        "overflow",
+        "dimension",
+        "declared_size",
+        "resolved_size",
+        "resolved_sizes",
+        "overlaps",
+    )
+    measured = {key: issue[key] for key in measurement_keys if key in issue}
+    return measured or {"violation_count": 1}
+
+
+def related_object(element: dict[str, Any]) -> dict[str, Any]:
+    return {
+        "element_id": element["id"],
+        "kind": element["kind"],
+        "type": element["type"],
+        "bbox": {key: element[key] for key in ("x", "y", "width", "height")},
+    }
+
+
+def extract_line_elements(slide_xml: str) -> list[dict[str, Any]]:
+    elements: list[dict[str, Any]] = []
+    for match in re.finditer(r"<line\b([^>]*)>", slide_xml):
+        attrs = match.group(1)
+        start_x = extract_numeric_attribute(attrs, "startX")
+        start_y = extract_numeric_attribute(attrs, "startY")
+        end_x = extract_numeric_attribute(attrs, "endX")
+        end_y = extract_numeric_attribute(attrs, "endY")
+        if any(value is None for value in (start_x, start_y, end_x, end_y)):
+            continue
+        line_alpha = extract_numeric_attribute(attrs, "alpha")
+        elements.append(
+            {
+                "id": extract_attribute(attrs, "id") or f"line-{len(elements) + 1}",
+                "kind": "line",
+                "type": "line",
+                "x": min(start_x, end_x),
+                "y": min(start_y, end_y),
+                "width": abs(end_x - start_x),
+                "height": abs(end_y - start_y),
+                "rotation": 0,
+                "alpha": line_alpha if line_alpha is not None else 1,
+                "order": len(elements),
+            }
+        )
+    return elements
+
+
+def normalize_issue(
+    issue: dict[str, Any],
+    slide_number: int | None,
+    elements_by_id: dict[str, dict[str, Any]],
+) -> dict[str, Any]:
+    normalized = dict(issue)
+    if normalized.get("level") == "info":
+        normalized["level"] = "warning"
+    element_ids = list(dict.fromkeys(normalized.get("elements", [])))
+    normalized["schema_version"] = "2.0"
+    normalized["element_ids"] = element_ids
+    normalized["target"] = {
+        **({"slide_number": slide_number} if slide_number is not None else {}),
+        **normalized.get("target", {}),
+    }
+    normalized["rule"] = issue_rule(normalized)
+    normalized["measurement"] = issue_measurement(normalized, elements_by_id)
+    normalized["related_objects"] = [
+        related_object(elements_by_id[element_id])
+        for element_id in element_ids
+        if element_id in elements_by_id
+    ]
+    if normalized["code"] == "sparse_container_content":
+        ratio = normalized["measurement"]["content_coverage_ratio"]
+        threshold = normalized["rule"]["threshold"]
+        container_id = normalized["target"].get("container_id", "unknown")
+        normalized.setdefault(
+            "message",
+            f"large card {container_id} content coverage {ratio:.1%} is below {threshold:.1%}",
+        )
+        normalized.setdefault(
+            "hint",
+            "Review the rendered screenshot; add or enlarge meaningful content if the whitespace is not intentional.",
+        )
+    elif normalized["code"] == "sparse_slide_content":
+        ratio = normalized["measurement"]["content_coverage_ratio"]
+        threshold = normalized["rule"]["threshold"]
+        normalized.setdefault(
+            "message",
+            f"slide visible content coverage {ratio:.1%} is below {threshold:.1%}",
+        )
+        normalized.setdefault(
+            "hint",
+            "Review the rendered screenshot to decide whether the page is intentionally sparse.",
+        )
+    else:
+        normalized.setdefault("message", normalized["code"].replace("_", " "))
+    normalized.setdefault(
+        "hint", "Inspect the reported elements and adjust them to satisfy the rule comparison."
+    )
+    return normalized
+
+
+def slide_status(errors: list[dict[str, Any]], warnings: list[dict[str, Any]]) -> str:
+    if errors:
+        return "blocked"
+    if warnings:
+        return "needs_screenshot_review"
+    return "passed"
+
+
+def build_result(
+    source_path: str | None,
+    slide_size: dict[str, int | float],
+    top_level_issues: list[dict[str, Any]],
+    slides: list[dict[str, Any]],
+) -> dict[str, Any]:
+    document_errors = [issue for issue in top_level_issues if issue["level"] == "error"]
+    document_warnings = [issue for issue in top_level_issues if issue["level"] == "warning"]
+    error_count = len(document_errors) + sum(len(slide["errors"]) for slide in slides)
+    warning_count = len(document_warnings) + sum(len(slide["warnings"]) for slide in slides)
+    all_errors = document_errors + [issue for slide in slides for issue in slide["errors"]]
+    all_warnings = document_warnings + [issue for slide in slides for issue in slide["warnings"]]
+    status = slide_status(all_errors, all_warnings)
+    result: dict[str, Any] = {
+        "schema_version": "2.0",
+        "tool": "xml_text_overlap_lint",
         "file": source_path,
-        "slide_size": {"width": presentation["width"], "height": presentation["height"]},
+        "slide_size": slide_size,
         "summary": {
             "slide_count": len(slides),
             "error_count": error_count,
             "warning_count": warning_count,
-            "info_count": info_count,
+            "status": status,
+            "release_ready": error_count == 0,
+            "screenshot_review_required": warning_count > 0,
+        },
+        "document": {
+            "errors": document_errors,
+            "warnings": document_warnings,
         },
         "slides": slides,
     }
@@ -1394,6 +2068,107 @@ def lint_xml(xml: str, source_path: str | None = None) -> dict[str, Any]:
     return result
 
 
+def lint_xml(xml: str, source_path: str | None = None) -> dict[str, Any]:
+    root, xml_error = parse_xml_root(xml)
+    if xml_error:
+        issue = normalize_issue(xml_error, None, {})
+        return build_result(
+            source_path,
+            {"width": 960, "height": 540},
+            [issue],
+            [],
+        )
+    if root is None:
+        raise AssertionError("parse_xml_root must return a root or error")
+
+    namespace_issues = validate_sml_tag_prefixes(xml)
+    sxsd_issues = validate_sxsd_tag_attributes(root)
+    iconpark_issues = validate_iconpark_icon_types(root)
+    top_level_issues = [
+        normalize_issue(issue, None, {})
+        for issue in [*namespace_issues, *sxsd_issues, *iconpark_issues]
+    ]
+    if any(issue["level"] == "error" for issue in top_level_issues):
+        return build_result(
+            source_path,
+            {"width": 960, "height": 540},
+            top_level_issues,
+            [],
+        )
+
+    presentation = parse_presentation(xml)
+    slides: list[dict[str, Any]] = []
+    for index, slide_xml in enumerate(presentation["slides"]):
+        slide_number = index + 1
+        geometry = lint_slide(
+            slide_xml,
+            slide_number,
+            presentation["width"],
+            presentation["height"],
+        )
+        density_elements = extract_density_elements(slide_xml)
+        extra_elements = [
+            element for element in density_elements if element["kind"] in {"icon", "polyline", "line"}
+        ]
+        elements_by_id = {
+            element["id"]: element for element in [*density_elements, *extra_elements]
+        }
+        # geometry["elements"] are the exact objects should_flag_overlap/detect_elements_out_of_canvas
+        # decided with inside lint_slide; prefer them so measurement/related_objects stay consistent
+        # with whatever actually triggered the issue, instead of density_elements' separate re-parse.
+        elements_by_id.update({element["id"]: element for element in geometry["elements"]})
+        extra_overflow_issues = detect_elements_out_of_canvas(
+            extra_elements,
+            presentation["width"],
+            presentation["height"],
+        )
+        raw_issues = [
+            *geometry["issues"],
+            *extra_overflow_issues,
+            *detect_blank_slide(
+                density_elements,
+                slide_number,
+                presentation["width"],
+                presentation["height"],
+            ),
+            *detect_sparse_container_content(
+                density_elements,
+                slide_number,
+                presentation["width"],
+                presentation["height"],
+            ),
+            *detect_sparse_slide_content(
+                density_elements,
+                slide_number,
+                presentation["width"],
+                presentation["height"],
+            ),
+        ]
+        issues = [
+            normalize_issue(issue, slide_number, elements_by_id)
+            for issue in raw_issues
+        ]
+        errors = [issue for issue in issues if issue["level"] == "error"]
+        warnings = [issue for issue in issues if issue["level"] == "warning"]
+        slides.append(
+            {
+                "slide_number": slide_number,
+                "status": slide_status(errors, warnings),
+                "element_count": len(elements_by_id),
+                "errors": errors,
+                "warnings": warnings,
+                "issues": issues,
+            }
+        )
+
+    return build_result(
+        source_path,
+        {"width": presentation["width"], "height": presentation["height"]},
+        top_level_issues,
+        slides,
+    )
+
+
 def print_usage() -> None:
     print("Usage:\n  python3 xml_text_overlap_lint.py --input <presentation.xml>", file=sys.stderr)
 
@@ -1416,6 +2191,6 @@ def run_cli(argv: list[str] | None = None) -> None:
 if __name__ == "__main__":
     try:
         run_cli()
-    except XmlTextOverlapLintError as error:
+    except XmlLayoutLintError as error:
         print(f"xml-text-overlap-lint error: {error}", file=sys.stderr)
         raise SystemExit(1) from error

skills/lark-slides/scripts/xml_text_overlap_lint_test.py

@@ -12,8 +12,8 @@ from pathlib import Path
 import xml_text_overlap_lint
 
 
-class XmlTextOverlapLintTest(unittest.TestCase):
-    def assertNoXmlTextOverlapLintIssues(self, result: dict, sample_name: str) -> None:
+class XmlTextOverlapLintGeometryTest(unittest.TestCase):
+    def assertNoXmlTextOverlapLintErrors(self, result: dict, sample_name: str) -> None:
         issue_summaries = []
         for slide in result.get("slides", []):
             for issue in slide.get("issues", []):
@@ -28,11 +28,6 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             0,
             f"{sample_name} has XML text overlap lint errors:\n" + "\n".join(issue_summaries),
         )
-        self.assertEqual(
-            result["summary"]["warning_count"],
-            0,
-            f"{sample_name} has XML text overlap lint warnings:\n" + "\n".join(issue_summaries),
-        )
 
     def test_cli_suggests_input_flag_for_positional_argument(self) -> None:
         script_path = Path(xml_text_overlap_lint.__file__).resolve()
@@ -49,7 +44,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         self.assertEqual(completed.stdout, "")
         self.assertEqual(
             completed.stderr,
-            f"xml-text-overlap-lint error: unexpected argument: {input_path}，need --input\n",
+            f"xml-text-overlap-lint error: unexpected argument: {input_path}, need --input\n",
         )
 
     def test_xml_text_overlap_lint_accepts_inline_fixture_xml_samples(self) -> None:
@@ -101,7 +96,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
                     sample_xml,
                     sample_name,
                 )
-                self.assertNoXmlTextOverlapLintIssues(result, sample_name)
+                self.assertNoXmlTextOverlapLintErrors(result, sample_name)
 
     def test_lint_xml_reports_unescaped_ampersand_in_text(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
@@ -221,7 +216,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         )
         self.assertEqual(result["summary"]["error_count"], 0)
 
-    def test_lint_xml_single_slide_uses_default_canvas_without_bounds_checks(self) -> None:
+    def test_lint_xml_single_slide_reports_out_of_canvas_and_blank_slide_errors(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
             <slide xmlns="http://www.larkoffice.com/sml/2.0">
@@ -235,8 +230,11 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         )
         self.assertEqual(result["slide_size"], {"width": 960, "height": 540})
         self.assertEqual(result["summary"]["slide_count"], 1)
-        self.assertEqual(result["summary"]["error_count"], 1)
-        self.assertEqual(result["slides"][0]["issues"][0]["code"], "shape_out_of_canvas")
+        self.assertEqual(result["summary"]["error_count"], 2)
+        self.assertEqual(
+            [issue["code"] for issue in result["slides"][0]["errors"]],
+            ["shape_out_of_canvas", "blank_slide"],
+        )
 
     def test_lint_xml_preserves_presentation_canvas_and_slide_order(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
@@ -618,8 +616,11 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         )
         self.assertEqual(result["summary"]["error_count"], 1)
         self.assertEqual(result["summary"]["warning_count"], 0)
-        self.assertEqual(result["slides"][0]["issues"][0]["code"], "bbox_overlap")
-        self.assertEqual(result["slides"][0]["issues"][0]["elements"], ["source", "target"])
+        issue = result["slides"][0]["issues"][0]
+        self.assertEqual(issue["code"], "bbox_overlap")
+        self.assertEqual(issue["elements"], ["source", "target"])
+        self.assertGreater(issue["measurement"]["intersection_area"], 0)
+        self.assertIsNotNone(issue.get("hint"))
 
     def test_lint_xml_allows_horizontal_text_with_default_wrap(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
@@ -752,7 +753,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             "第一行\n第二行\n第三行",
         )
 
-    def test_lint_xml_allows_template_style_bleed_and_text_over_images(self) -> None:
+    def test_lint_xml_blocks_template_style_bleed_outside_canvas(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
             <presentation xmlns="http://www.larkoffice.com/sml/2.0" width="960" height="540">
@@ -770,8 +771,9 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             </presentation>
             """
         )
-        self.assertEqual(result["summary"]["error_count"], 0)
+        self.assertEqual(result["summary"]["error_count"], 1)
         self.assertEqual(result["summary"]["warning_count"], 0)
+        self.assertEqual(result["slides"][0]["errors"][0]["code"], "img_out_of_canvas")
 
     def test_extract_elements_preserves_supported_element_geometry_order_and_text_metadata(self) -> None:
         elements = xml_text_overlap_lint.extract_elements(
@@ -805,7 +807,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         self.assertEqual(elements[1]["fontSize"], 28)
         self.assertEqual(elements[1]["text"], "Growth & scale\nFocused execution")
 
-    def test_lint_xml_allows_small_out_of_bounds_images(self) -> None:
+    def test_lint_xml_blocks_small_out_of_bounds_images(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
             <presentation xmlns="http://www.larkoffice.com/sml/2.0" width="960" height="540">
@@ -817,9 +819,10 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             </presentation>
             """
         )
-        self.assertEqual(result["summary"]["error_count"], 0)
+        self.assertEqual(result["summary"]["error_count"], 1)
+        self.assertEqual(result["slides"][0]["errors"][0]["code"], "img_out_of_canvas")
 
-    def test_lint_xml_allows_out_of_canvas_images(self) -> None:
+    def test_lint_xml_blocks_out_of_canvas_images(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
             <presentation xmlns="http://www.larkoffice.com/sml/2.0" width="960" height="540">
@@ -832,9 +835,13 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             </presentation>
             """
         )
-        self.assertEqual(result["summary"]["error_count"], 0)
+        self.assertEqual(result["summary"]["error_count"], 2)
+        self.assertEqual(
+            [issue["code"] for issue in result["slides"][0]["errors"]],
+            ["img_out_of_canvas", "img_out_of_canvas"],
+        )
 
-    def test_lint_xml_allows_full_bleed_images(self) -> None:
+    def test_lint_xml_blocks_full_bleed_images_outside_canvas(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
             <presentation xmlns="http://www.larkoffice.com/sml/2.0" width="960" height="540">
@@ -846,7 +853,8 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             </presentation>
             """
         )
-        self.assertEqual(result["summary"]["error_count"], 0)
+        self.assertEqual(result["summary"]["error_count"], 1)
+        self.assertEqual(result["slides"][0]["errors"][0]["code"], "img_out_of_canvas")
 
     def test_lint_xml_reports_text_and_chart_out_of_canvas(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
@@ -863,15 +871,36 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             """
         )
         issues = result["slides"][0]["issues"]
-        self.assertEqual(result["summary"]["error_count"], 2)
+        self.assertEqual(result["summary"]["error_count"], 3)
         self.assertEqual(
             [(issue["code"], issue["elements"], issue["overflow"]) for issue in issues],
             [
                 ("shape_out_of_canvas", ["outside-shape"], {"left": 10, "top": 0, "right": 0, "bottom": 0}),
+                ("img_out_of_canvas", ["outside-img"], {"left": 0, "top": 20, "right": 0, "bottom": 0}),
                 ("chart_out_of_canvas", ["outside-chart"], {"left": 0, "top": 0, "right": 40, "bottom": 0}),
             ],
         )
 
+    def test_lint_xml_reports_line_out_of_canvas_with_structured_geometry(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="body" type="text" topLeftX="80" topLeftY="80" width="300" height="60">
+                  <content fontSize="18"><p>Visible content</p></content>
+                </shape>
+                <line id="connector" startX="80" startY="120" endX="980" endY="120"/>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["errors"][0]
+        self.assertEqual(issue["code"], "line_out_of_canvas")
+        self.assertEqual(issue["element_ids"], ["connector"])
+        self.assertEqual(issue["measurement"]["overflow"]["right"], 20)
+        self.assertEqual(issue["related_objects"][0]["kind"], "line")
+
     def test_lint_xml_uses_rotated_text_and_chart_bounds_for_canvas_validation(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
@@ -893,6 +922,27 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         self.assertEqual(issues_by_element["rotated-chart"]["code"], "chart_out_of_canvas")
         self.assertAlmostEqual(issues_by_element["rotated-chart"]["overflow"]["right"], 20.710678, places=5)
 
+    def test_lint_xml_uses_rotated_bounds_for_rect_and_image_canvas_validation(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <presentation xmlns="http://www.larkoffice.com/sml/2.0" width="960" height="540">
+              <slide xmlns="http://www.larkoffice.com/sml/2.0">
+                <data>
+                  <shape id="rotated-rect" type="rect" topLeftX="0" topLeftY="0" width="100" height="100" rotation="45"/>
+                  <img id="rotated-image" topLeftX="860" topLeftY="200" width="100" height="100" rotation="45"/>
+                </data>
+              </slide>
+            </presentation>
+            """
+        )
+        issues_by_element = {issue["elements"][0]: issue for issue in result["slides"][0]["issues"]}
+        self.assertEqual(result["summary"]["error_count"], 2)
+        self.assertEqual(issues_by_element["rotated-rect"]["code"], "shape_out_of_canvas")
+        self.assertAlmostEqual(issues_by_element["rotated-rect"]["overflow"]["left"], 20.710678, places=5)
+        self.assertAlmostEqual(issues_by_element["rotated-rect"]["overflow"]["top"], 20.710678, places=5)
+        self.assertEqual(issues_by_element["rotated-image"]["code"], "img_out_of_canvas")
+        self.assertAlmostEqual(issues_by_element["rotated-image"]["overflow"]["right"], 20.710678, places=5)
+
     def test_lint_xml_treats_non_finite_rotations_as_zero(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
@@ -1057,9 +1107,8 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         )
         issues_by_dimension = {issue["dimension"]: issue for issue in result["slides"][0]["issues"]}
         self.assertEqual(result["summary"]["error_count"], 0)
-        self.assertEqual(result["summary"]["warning_count"], 0)
-        self.assertEqual(result["summary"]["info_count"], 2)
-        self.assertEqual(issues_by_dimension["width"]["level"], "info")
+        self.assertEqual(result["summary"]["warning_count"], 2)
+        self.assertEqual(issues_by_dimension["width"]["level"], "warning")
         self.assertEqual(issues_by_dimension["width"]["code"], "table_resolved_size_mismatch")
         self.assertEqual(issues_by_dimension["width"]["resolved_sizes"], [100, 100, 50])
         self.assertEqual(issues_by_dimension["width"]["resolved_size"], 250)
@@ -1084,7 +1133,6 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         )
         self.assertEqual(result["summary"]["error_count"], 0)
         self.assertEqual(result["summary"]["warning_count"], 0)
-        self.assertEqual(result["summary"]["info_count"], 0)
         self.assertEqual(result["slides"][0]["issues"], [])
 
     def test_lint_xml_keeps_resolved_table_sizes_positive_when_target_is_too_small(self) -> None:
@@ -1153,7 +1201,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
         }
         script_path = Path(xml_text_overlap_lint.__file__).resolve()
         with tempfile.TemporaryDirectory() as temp_dir:
-            for name, (table_xml, expected_info_count) in cases.items():
+            for name, (table_xml, expected_warning_count) in cases.items():
                 with self.subTest(case=name):
                     input_path = Path(temp_dir) / f"{name}.xml"
                     input_path.write_text(
@@ -1173,10 +1221,9 @@ class XmlTextOverlapLintTest(unittest.TestCase):
                     result = json.loads(completed.stdout)
                     self.assertEqual(completed.returncode, 0, completed.stderr)
                     self.assertEqual(result["summary"]["error_count"], 0)
-                    self.assertEqual(result["summary"]["warning_count"], 0)
-                    self.assertEqual(result["summary"]["info_count"], expected_info_count)
+                    self.assertEqual(result["summary"]["warning_count"], expected_warning_count)
                     self.assertTrue(
-                        all(issue["level"] == "info" for issue in result["slides"][0]["issues"]),
+                        all(issue["level"] == "warning" for issue in result["slides"][0]["issues"]),
                         result["slides"][0]["issues"],
                     )
 
@@ -1209,7 +1256,7 @@ class XmlTextOverlapLintTest(unittest.TestCase):
                 self.assertEqual(result["slides"][0]["issues"][0]["code"], "bbox_overlap")
 
 
-    def test_lint_xml_reports_vertical_text_image_overlap_as_info(self) -> None:
+    def test_lint_xml_reports_vertical_text_image_overlap_as_warning(self) -> None:
         result = xml_text_overlap_lint.lint_xml(
             """
             <slide xmlns="http://www.larkoffice.com/sml/2.0"><data>
@@ -1221,9 +1268,710 @@ class XmlTextOverlapLintTest(unittest.TestCase):
             """
         )
         issue = next(issue for issue in result["slides"][0]["issues"] if issue["code"] == "image_may_cover_vertical_text")
-        self.assertEqual(issue["level"], "info")
+        self.assertEqual(issue["level"], "warning")
         self.assertEqual(result["summary"]["error_count"], 0)
 
 
+class XmlTextOverlapLintDensityTest(unittest.TestCase):
+    def test_lint_xml_blocks_blank_slide(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <presentation xmlns="http://www.larkoffice.com/sml/2.0" width="960" height="540">
+              <slide id="content-slide">
+                <data>
+                  <shape id="title" type="text" topLeftX="60" topLeftY="60" width="400" height="50">
+                    <content fontSize="28"><p>Investment report</p></content>
+                  </shape>
+                </data>
+              </slide>
+              <slide id="blank-slide">
+                <style><fill><fillColor color="rgba(255, 255, 255, 1)"/></fill></style>
+                <data/>
+                <note><content/></note>
+              </slide>
+            </presentation>
+            """
+        )
+
+        self.assertEqual(result["summary"]["slide_count"], 2)
+        self.assertEqual(result["summary"]["warning_count"], 0)
+        self.assertEqual(result["summary"]["error_count"], 1)
+        self.assertEqual(result["summary"]["status"], "blocked")
+        self.assertFalse(result["summary"]["release_ready"])
+        self.assertEqual(result["slides"][0]["issues"], [])
+        self.assertEqual(result["slides"][1]["element_count"], 0)
+        issue = result["slides"][1]["errors"][0]
+        self.assertEqual(issue["level"], "error")
+        self.assertEqual(issue["code"], "blank_slide")
+        self.assertEqual(issue["element_ids"], [])
+        self.assertEqual(issue["rule"]["id"], "blank_slide")
+        self.assertEqual(issue["measurement"]["visible_element_count"], 0)
+        self.assertEqual(issue["related_objects"], [])
+
+    def test_lint_xml_blocks_blank_slide_with_only_transparent_image(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <img id="ghost" topLeftX="60" topLeftY="60" width="200" height="200" alpha="0"/>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["error_count"], 1)
+        issue = result["slides"][0]["errors"][0]
+        self.assertEqual(issue["code"], "blank_slide")
+
+    def test_lint_xml_warns_when_large_container_is_mostly_empty(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="trend-card" type="rect" topLeftX="500" topLeftY="135" width="410" height="370"/>
+                <shape id="trend-title" type="text" topLeftX="515" topLeftY="147" width="380" height="28">
+                  <content fontSize="15"><p>Core trends</p></content>
+                </shape>
+                <shape id="trend-copy" type="text" topLeftX="515" topLeftY="177" width="380" height="315">
+                  <content fontSize="12"><p>First point</p><p>Second point</p><p>Third point</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["issues"][0]
+        self.assertEqual(issue["code"], "sparse_container_content")
+        self.assertEqual(issue["target"]["container_id"], "trend-card")
+        self.assertEqual(issue["target"], {
+            "slide_number": 1,
+            "container_id": "trend-card",
+            "container_type": "rect",
+            "bbox": {"x": 500, "y": 135, "width": 410, "height": 370},
+        })
+        self.assertLess(issue["measurement"]["content_coverage_ratio"], 0.15)
+        self.assertEqual(issue["rule"], {
+            "name": "large_container_visible_content_coverage",
+            "threshold": 0.15,
+            "comparison": "content_coverage_ratio < threshold",
+            "id": "sparse_container_content",
+        })
+        self.assertEqual(issue["measurement"]["container_area"], 151700)
+        self.assertEqual(issue["measurement"]["content_coverage_ratio"], 0.032)
+        self.assertEqual(issue["elements"], ["trend-card", "trend-title", "trend-copy"])
+        self.assertEqual(issue["element_ids"], ["trend-card", "trend-title", "trend-copy"])
+        self.assertEqual(
+            [obj["element_id"] for obj in issue["related_objects"]],
+            ["trend-card", "trend-title", "trend-copy"],
+        )
+        self.assertEqual(result["slides"][0]["status"], "needs_screenshot_review")
+        self.assertEqual(result["slides"][0]["warnings"], result["slides"][0]["issues"])
+
+    def test_lint_xml_warns_for_sparse_short_cards(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card-1" type="rect" topLeftX="60" topLeftY="180" width="400" height="105"/>
+                <shape id="text-1" type="text" topLeftX="80" topLeftY="220" width="360" height="30">
+                  <content fontSize="14"><p>期待认识大家</p></content>
+                </shape>
+                <shape id="card-2" type="rect" topLeftX="490" topLeftY="180" width="400" height="105"/>
+                <shape id="text-2" type="text" topLeftX="510" topLeftY="220" width="360" height="30">
+                  <content fontSize="14"><p>化学一起讨论</p></content>
+                </shape>
+                <shape id="card-3" type="rect" topLeftX="60" topLeftY="310" width="400" height="105"/>
+                <shape id="text-3" type="text" topLeftX="80" topLeftY="350" width="360" height="30">
+                  <content fontSize="14"><p>吉他随时交流</p></content>
+                </shape>
+                <shape id="card-4" type="rect" topLeftX="490" topLeftY="310" width="400" height="105"/>
+                <shape id="text-4" type="text" topLeftX="510" topLeftY="350" width="360" height="30">
+                  <content fontSize="14"><p>共度美好四年</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        container_issues = [
+            issue for issue in result["slides"][0]["issues"] if issue["code"] == "sparse_container_content"
+        ]
+        self.assertEqual(
+            [issue["target"]["container_id"] for issue in container_issues],
+            ["card-1", "card-2", "card-3", "card-4"],
+        )
+        self.assertTrue(all(issue["target"]["bbox"]["height"] == 105 for issue in container_issues))
+        self.assertTrue(all(issue["measurement"]["content_coverage_ratio"] < 0.15 for issue in container_issues))
+        self.assertEqual(
+            [issue["code"] for issue in result["slides"][0]["issues"]],
+            [
+                "sparse_container_content",
+                "sparse_container_content",
+                "sparse_container_content",
+                "sparse_container_content",
+                "sparse_slide_content",
+            ],
+        )
+
+    def test_lint_xml_warns_when_whole_slide_has_too_little_effective_content(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="background" type="rect" topLeftX="0" topLeftY="0" width="960" height="540"/>
+                <shape id="text-1" type="text" topLeftX="60" topLeftY="80" width="200" height="30">
+                  <content fontSize="14"><p>One short line</p></content>
+                </shape>
+                <shape id="text-2" type="text" topLeftX="500" topLeftY="180" width="200" height="30">
+                  <content fontSize="14"><p>Another line</p></content>
+                </shape>
+                <shape id="text-3" type="text" topLeftX="60" topLeftY="310" width="200" height="30">
+                  <content fontSize="14"><p>Third line</p></content>
+                </shape>
+                <shape id="text-4" type="text" topLeftX="500" topLeftY="410" width="200" height="30">
+                  <content fontSize="14"><p>Fourth line</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        issues = [issue for issue in result["slides"][0]["issues"] if issue["code"] == "sparse_slide_content"]
+        self.assertEqual(len(issues), 1)
+        issue = issues[0]
+        self.assertEqual(issue["target"]["bbox"], {"x": 0, "y": 0, "width": 960, "height": 540})
+        self.assertEqual(issue["rule"]["threshold"], 0.035)
+        self.assertLess(issue["measurement"]["content_coverage_ratio"], 0.035)
+        self.assertEqual(issue["measurement"]["content_element_count"], 4)
+        self.assertNotIn("background", issue["elements"])
+
+    def test_lint_xml_ignores_isolated_short_layout_bar(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="summary-bar" type="rect" topLeftX="52" topLeftY="82" width="856" height="105"/>
+                <shape id="summary" type="text" topLeftX="72" topLeftY="115" width="816" height="30">
+                  <content fontSize="14"><p>One concise summary</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["slides"][0]["issues"], [])
+
+    def test_lint_xml_counts_rect_own_content_as_visible_content(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="load-card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="18">
+                    <p>被吊物</p>
+                    <p><span fontSize="36">32.0 t</span></p>
+                    <p>钢结构模块</p>
+                  </content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["slides"][0]["issues"], [])
+
+    def test_lint_xml_reports_nonzero_coverage_for_rect_own_content_reproduction(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="load-card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="18">
+                    <p>被吊物</p>
+                    <p>32.0 t</p>
+                    <p>钢结构模块</p>
+                  </content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["issues"][0]
+        self.assertGreater(issue["measurement"]["visible_content_area"], 0)
+        self.assertEqual(issue["measurement"]["content_element_count"], 1)
+        self.assertGreater(issue["measurement"]["content_coverage_ratio"], 0)
+
+    def test_lint_xml_still_warns_for_sparse_rect_own_content(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="sparse-card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="12"><p>A</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["issues"][0]
+        self.assertEqual(issue["target"]["container_id"], "sparse-card")
+        self.assertGreater(issue["measurement"]["visible_content_area"], 0)
+        self.assertEqual(issue["measurement"]["content_element_count"], 1)
+        self.assertEqual(issue["elements"], ["sparse-card"])
+
+    def test_lint_xml_unions_rect_own_content_with_child_content(self) -> None:
+        self_only = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="12"><p>A</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+        with_overlapping_child = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="12"><p>A</p></content>
+                </shape>
+                <shape id="child" type="text" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="12"><p>A</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self_issue = self_only["slides"][0]["issues"][0]
+        mixed_issue = with_overlapping_child["slides"][0]["issues"][0]
+        self.assertEqual(
+            mixed_issue["measurement"]["visible_content_area"],
+            self_issue["measurement"]["visible_content_area"],
+        )
+        self.assertEqual(mixed_issue["measurement"]["content_element_count"], 2)
+
+    def test_extract_density_elements_reads_nested_font_size_from_rect_content(self) -> None:
+        elements = xml_text_overlap_lint.extract_density_elements(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184">
+                  <content fontSize="12"><p><span fontSize="36">32.0 t</span></p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(elements[0]["fontSize"], 36)
+
+    def test_extract_density_elements_does_not_attach_following_text_to_self_closing_rect(self) -> None:
+        elements = xml_text_overlap_lint.extract_density_elements(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184"/>
+                <shape id="title" type="text" topLeftX="80" topLeftY="160" width="180" height="30">
+                  <content fontSize="18"><p>Following title</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(elements[0]["text"], "")
+        self.assertEqual(elements[1]["text"], "Following title")
+
+    def test_lint_xml_allows_container_with_large_visual_child(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="chart-card" type="rect" topLeftX="500" topLeftY="135" width="410" height="300"/>
+                <chart id="chart" topLeftX="525" topLeftY="170" width="350" height="220"/>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["warning_count"], 0)
+
+    def test_lint_xml_does_not_let_transparent_visual_child_suppress_sparse_warning(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="title" type="text" topLeftX="40" topLeftY="40" width="300" height="40">
+                  <content fontSize="20"><p>Section title</p></content>
+                </shape>
+                <shape id="chart-card" type="rect" topLeftX="500" topLeftY="135" width="410" height="300"/>
+                <chart id="chart" topLeftX="525" topLeftY="170" width="350" height="220" alpha="0"/>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = next(
+            issue for issue in result["slides"][0]["issues"] if issue["code"] == "sparse_container_content"
+        )
+        self.assertEqual(issue["target"]["container_id"], "chart-card")
+
+    def test_lint_xml_warns_for_small_empty_visual_placeholder_cards(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="letter-placeholder" type="rect" topLeftX="520" topLeftY="180" width="200" height="200"/>
+                <shape id="letter" type="text" topLeftX="540" topLeftY="250" width="160" height="70">
+                  <content fontSize="46"><p>Z</p></content>
+                </shape>
+                <shape id="empty-placeholder" type="rect" topLeftX="744" topLeftY="180" width="144" height="200"/>
+              </data>
+            </slide>
+            """
+        )
+
+        issues = result["slides"][0]["issues"]
+        self.assertEqual(
+            [issue["target"]["container_id"] for issue in issues],
+            ["letter-placeholder", "empty-placeholder"],
+        )
+        self.assertEqual(issues[1]["measurement"]["content_element_count"], 0)
+
+    def test_lint_xml_applies_global_threshold_to_normal_text_card(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="70" topLeftY="184" width="260" height="288"/>
+                <shape id="title" type="text" topLeftX="90" topLeftY="215" width="220" height="30">
+                  <content fontSize="18"><p>梦境与现实</p></content>
+                </shape>
+                <shape id="copy" type="text" topLeftX="90" topLeftY="330" width="220" height="70">
+                  <content fontSize="13"><p>边界溶解，逻辑失效。观众被拽入潜意识的迷宫。</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["issues"][0]
+        self.assertEqual(issue["target"]["container_id"], "card")
+        self.assertEqual(issue["rule"]["threshold"], 0.15)
+
+    def test_lint_xml_allows_image_overlay_rect(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <img id="hero" topLeftX="560" topLeftY="0" width="400" height="540"/>
+                <shape id="tint" type="rect" topLeftX="560" topLeftY="0" width="400" height="540"/>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["warning_count"], 0)
+
+    def test_lint_xml_does_not_let_transparent_image_overlay_suppress_sparse_warning(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="title" type="text" topLeftX="40" topLeftY="40" width="300" height="40">
+                  <content fontSize="20"><p>Section title</p></content>
+                </shape>
+                <shape id="card" type="rect" topLeftX="330" topLeftY="120" width="300" height="300"/>
+                <img id="ghost-overlay" topLeftX="330" topLeftY="120" width="300" height="300" alpha="0"/>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = next(
+            issue for issue in result["slides"][0]["issues"] if issue["code"] == "sparse_container_content"
+        )
+        self.assertEqual(issue["target"]["container_id"], "card")
+
+    def test_lint_xml_allows_edge_spanning_layout_panel_and_nested_decoration(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="panel" type="rect" topLeftX="600" topLeftY="0" width="360" height="540"/>
+                <shape id="decoration" type="rect" topLeftX="660" topLeftY="150" width="240" height="240"/>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["warning_count"], 0)
+
+    def test_lint_xml_counts_icons_as_visible_content(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="80" topLeftY="140" width="320" height="240"/>
+                <icon id="visual" iconType="iconpark/Safe/shield.svg" topLeftX="100" topLeftY="160" width="180" height="180">
+                  <fill><fillColor color="rgba(37, 99, 235, 1)"/></fill>
+                </icon>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["warning_count"], 0)
+
+    def test_lint_xml_does_not_count_transparent_icon_as_visible_content(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="title" type="text" topLeftX="40" topLeftY="40" width="300" height="40">
+                  <content fontSize="20"><p>Section title</p></content>
+                </shape>
+                <shape id="card" type="rect" topLeftX="80" topLeftY="140" width="320" height="240"/>
+                <icon id="visual" iconType="iconpark/Safe/shield.svg" topLeftX="100" topLeftY="160" width="180" height="180" alpha="0">
+                  <fill><fillColor color="rgba(37, 99, 235, 1)"/></fill>
+                </icon>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = next(
+            issue for issue in result["slides"][0]["issues"] if issue["code"] == "sparse_container_content"
+        )
+        self.assertEqual(issue["target"]["container_id"], "card")
+        self.assertEqual(issue["measurement"]["content_coverage_ratio"], 0)
+
+    def test_lint_xml_warns_when_coverage_is_below_global_threshold(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="80" topLeftY="140" width="200" height="200"/>
+                <icon id="visual" iconType="iconpark/Safe/shield.svg" topLeftX="100" topLeftY="160" width="70" height="70">
+                  <fill><fillColor color="rgba(37, 99, 235, 1)"/></fill>
+                </icon>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["issues"][0]
+        self.assertEqual(issue["target"]["container_id"], "card")
+        self.assertEqual(issue["measurement"]["content_coverage_ratio"], 0.122)
+        self.assertEqual(issue["rule"]["threshold"], 0.15)
+
+    def test_lint_xml_allows_quarter_coverage_under_lower_threshold(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="80" topLeftY="140" width="200" height="200"/>
+                <icon id="visual" iconType="iconpark/Safe/shield.svg" topLeftX="100" topLeftY="160" width="100" height="100">
+                  <fill><fillColor color="rgba(37, 99, 235, 1)"/></fill>
+                </icon>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["slides"][0]["issues"], [])
+
+    def test_lint_xml_allows_large_metric_card_above_lower_threshold(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="metric-card" type="rect" topLeftX="80" topLeftY="140" width="360" height="300"/>
+                <shape id="metric" type="text" topLeftX="104" topLeftY="190" width="340" height="90">
+                  <content fontSize="12.4"><p><strong><span fontSize="62">400</span></strong>+ 项</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["slides"][0]["issues"], [])
+
+    def test_lint_xml_does_not_report_blank_slide_for_line_only_content(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <line id="l1" startX="100" startY="100" endX="800" endY="100"/>
+                <line id="l2" startX="100" startY="200" endX="800" endY="200"/>
+                <line id="l3" startX="100" startY="300" endX="800" endY="300"/>
+                <line id="l4" startX="100" startY="400" endX="800" endY="400"/>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["error_count"], 0)
+        codes = [issue["code"] for issue in result["slides"][0]["issues"]]
+        self.assertNotIn("blank_slide", codes)
+
+    def test_lint_xml_reports_bbox_overlap_measurement_from_decision_time_visual_bbox(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="left" type="text" topLeftX="80" topLeftY="80" width="300" height="60">
+                  <content fontSize="14"><p>overlap text <span fontSize="96">big</span></p></content>
+                </shape>
+                <shape id="right" type="text" topLeftX="80" topLeftY="80" width="300" height="80">
+                  <content fontSize="14"><p>other overlap text</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = result["slides"][0]["issues"][0]
+        self.assertEqual(issue["code"], "bbox_overlap")
+        # Must match the visual bbox that should_flag_overlap actually decided with (fontSize=14
+        # from extract_elements), not the fontSize=96 max-descendant value that
+        # extract_density_elements computes for the same "left" element id.
+        self.assertEqual(issue["measurement"]["intersection_width"], 117.04)
+        self.assertEqual(issue["measurement"]["intersection_height"], 6.8)
+        self.assertEqual(issue["measurement"]["intersection_area"], 795.872)
+
+    def test_has_similar_short_card_peer_excludes_the_element_itself(self) -> None:
+        card_a = {"kind": "shape", "type": "rect", "x": 0, "y": 0, "width": 300, "height": 100}
+        card_b = {"kind": "shape", "type": "rect", "x": 400, "y": 0, "width": 300, "height": 100}
+        card_c = {"kind": "shape", "type": "rect", "x": 0, "y": 200, "width": 300, "height": 100}
+
+        self.assertFalse(
+            xml_text_overlap_lint.has_similar_short_card_peer(card_a, [card_a, card_b])
+        )
+        self.assertTrue(
+            xml_text_overlap_lint.has_similar_short_card_peer(card_a, [card_a, card_b, card_c])
+        )
+
+    def test_lint_xml_reports_schema_version_2_for_sparse_issues(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="card" type="rect" topLeftX="60" topLeftY="140" width="220" height="184"/>
+              </data>
+            </slide>
+            """
+        )
+
+        issue = next(
+            issue for issue in result["slides"][0]["issues"] if issue["code"] == "sparse_container_content"
+        )
+        self.assertEqual(issue["schema_version"], "2.0")
+
+    def test_lint_xml_does_not_report_blank_slide_for_textless_decorative_shapes(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="deco1" type="ellipse" topLeftX="60" topLeftY="60" width="300" height="300">
+                  <fill><fillColor color="rgba(37, 99, 235, 1)"/></fill>
+                </shape>
+                <shape id="deco2" type="triangle" topLeftX="500" topLeftY="200" width="200" height="200">
+                  <fill><fillColor color="rgba(220, 38, 38, 1)"/></fill>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["summary"]["error_count"], 0)
+        codes = [issue["code"] for issue in result["slides"][0]["issues"]]
+        self.assertNotIn("blank_slide", codes)
+
+    def test_lint_xml_still_warns_for_sparse_slide_content_despite_full_bleed_background(self) -> None:
+        # A plain textless shape now counts as "not blank" (see the test above), but a
+        # full-bleed background rect must still NOT count toward sparse_slide_content's
+        # meaningful-content coverage ratio -- otherwise every slide with a background would
+        # trivially "pass" that density check.
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="background" type="rect" topLeftX="0" topLeftY="0" width="960" height="540"/>
+                <shape id="text-1" type="text" topLeftX="60" topLeftY="80" width="200" height="30">
+                  <content fontSize="14"><p>One short line</p></content>
+                </shape>
+                <shape id="text-2" type="text" topLeftX="500" topLeftY="180" width="200" height="30">
+                  <content fontSize="14"><p>Another line</p></content>
+                </shape>
+                <shape id="text-3" type="text" topLeftX="60" topLeftY="310" width="200" height="30">
+                  <content fontSize="14"><p>Third line</p></content>
+                </shape>
+                <shape id="text-4" type="text" topLeftX="500" topLeftY="410" width="200" height="30">
+                  <content fontSize="14"><p>Fourth line</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        codes = [issue["code"] for issue in result["slides"][0]["issues"]]
+        self.assertIn("sparse_slide_content", codes)
+
+    def test_lint_xml_accepts_whitespace_around_attribute_equals_sign(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="visible" type="text" topLeftX = "80" topLeftY = "80" width = "300" height = "60">
+                  <content><p>hello</p></content>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        self.assertEqual(result["slides"][0]["element_count"], 1)
+        codes = [issue["code"] for issue in result["slides"][0]["issues"]]
+        self.assertNotIn("blank_slide", codes)
+
+    def test_lint_xml_reports_blank_slide_for_full_canvas_background_only(self) -> None:
+        result = xml_text_overlap_lint.lint_xml(
+            """
+            <slide xmlns="http://www.larkoffice.com/sml/2.0">
+              <data>
+                <shape id="background" type="rect" topLeftX="0" topLeftY="0" width="960" height="540">
+                  <fill><fillColor color="rgba(240, 235, 220, 1)"/></fill>
+                </shape>
+              </data>
+            </slide>
+            """
+        )
+
+        codes = [issue["code"] for issue in result["slides"][0]["issues"]]
+        self.assertIn("blank_slide", codes)
+
+    def test_has_similar_short_card_peer_ignores_invisible_peers(self) -> None:
+        visible_card = {"kind": "shape", "type": "rect", "x": 0, "y": 0, "width": 300, "height": 100}
+        ghost_1 = {
+            "kind": "shape", "type": "rect", "x": 400, "y": 0, "width": 300, "height": 100, "alpha": 0,
+        }
+        ghost_2 = {
+            "kind": "shape", "type": "rect", "x": 800, "y": 0, "width": 300, "height": 100, "alpha": 0,
+        }
+
+        self.assertFalse(
+            xml_text_overlap_lint.has_similar_short_card_peer(
+                visible_card, [visible_card, ghost_1, ghost_2]
+            )
+        )
+
+
 if __name__ == "__main__":
     unittest.main()

skills/lark-task/SKILL.md

@@ -38,6 +38,13 @@ metadata:
 > Task OpenAPI 中用于更新/操作任务的 `guid` 是任务的全局唯一标识（GUID），不是客户端展示的任务编号（例如 `t104121` / `suite_entity_num`）。
 > 对于 Feishu 的任务 applink（例如 `.../client/todo/task?guid=...`），必须使用 URL query 里的 `guid` 参数作为 task guid。
 
+> **从任务清单定位并修改任务的最短路径**：
+> 1. 已知任务清单 GUID 时直接使用，不要先搜索；已知任务清单 applink 时，取 URL query 中的 `guid` 作为 `tasklist_guid`。
+> 2. 只有清单名称或关键词、没有 GUID/applink 时，才调用一次 `+tasklist-search` 解析目标清单。
+> 3. 按原生 API 规则先执行 `lark-cli schema task.tasklists.tasks`，再执行 `lark-cli task tasklists tasks --params '{"tasklist_guid":"<tasklist_guid>"}' --as user`。
+> 4. 从清单任务结果中取任务的 `guid`，直接传给 `+update` 或 `+complete`；禁止传客户端展示编号（例如 `t104121`）。这两个 shortcut 也可直接接收包含 `guid=` 的任务 applink。
+> 5. `+update` 返回 `updated_fields` 和每个任务的服务端 `confirmed` 字段；`+complete` 返回 `status`、`completed_at`、`already_completed`。这些字段已确认目标状态时，不要例行追加 `tasks get`；仅在服务端未返回所需字段或用户明确要求完整复核时再查询详情。
+
 | Shortcut | 说明 |
 |----------|------|
 | [`+create`](references/lark-task-create.md) | create a task |

skills/lark-task/references/lark-task-complete.md

@@ -9,19 +9,23 @@ Mark a task as completed.
 ```bash
 # Complete a task
 lark-cli task +complete --task-id "<task_guid>"
+
+# A task applink is accepted directly; the CLI extracts its guid query value
+lark-cli task +complete --task-id "https://applink.larksuite.com/client/todo/task?guid=<task_guid>"
 ```
 
 ## Parameters
 
 | Parameter | Required | Description |
 |-----------|----------|-------------|
-| `--task-id <guid>` | Yes | The task GUID to complete. For Feishu task applinks, use the `guid` query parameter, not the `suite_entity_num` / display task ID like `t104121`. |
+| `--task-id <guid-or-applink>` | Yes | Task OpenAPI GUID or a task applink containing `guid=`. Display task IDs such as `t104121` / `suite_entity_num` are rejected. |
 
 ## Workflow
 
 1. Confirm the task to complete.
 2. Execute the command.
-3. Report success.
+3. Read `data.status`, `data.completed_at`, and `data.already_completed` from the result. `already_completed: true` means the shortcut observed an already-completed task and skipped the PATCH.
+4. Do not routinely call `task tasks get` when the result already reports `status: done` and a non-zero `completed_at`. Query details only if confirmation fields are absent or the user explicitly asks for a full verification.
 
 > [!CAUTION]
 > This is a **Write Operation** -- You must confirm the user's intent before executing.

skills/lark-task/references/lark-task-update.md

@@ -13,6 +13,9 @@ lark-cli task +update --task-id "<task_guid>" --summary "New Summary"
 # Update multiple tasks' due dates
 lark-cli task +update --task-id "<task_guid>,<another_task_guid>" --due "+2d"
 
+# A task applink is accepted directly; the CLI extracts its guid query value
+lark-cli task +update --task-id "https://applink.larksuite.com/client/todo/task?guid=<task_guid>" --summary "New Summary"
+
 # Update with JSON data
 lark-cli task +update --task-id "<task_guid>" --data '{"description": "New description"}'
 ```
@@ -21,7 +24,7 @@ lark-cli task +update --task-id "<task_guid>" --data '{"description": "New descr
 
 | Parameter | Required | Description |
 |-----------|----------|-------------|
-| `--task-id <guid>` | Yes | The task GUID to update. Comma-separated task GUIDs are supported for multiple tasks. For Feishu task applinks, use the `guid` query parameter, not the `suite_entity_num` / display task ID like `t104121`. |
+| `--task-id <guid-or-applink>` | Yes | Task OpenAPI GUID or a task applink containing `guid=`. Comma-separated GUIDs/applinks are supported for multiple tasks. Display task IDs such as `t104121` / `suite_entity_num` are rejected. |
 | `--summary <text>` | No | New summary/title for the task. |
 | `--description <text>` | No | New description for the task. |
 | `--due <time>` | No | New due date (supports relative time). |
@@ -31,7 +34,8 @@ lark-cli task +update --task-id "<task_guid>" --data '{"description": "New descr
 
 1. Confirm with the user the tasks to update and the fields.
 2. Execute `lark-cli task +update --task-id "..." ...`
-3. Report the successful updates.
+3. Read `data.updated_fields` and `data.tasks[].confirmed` from the result and report only the fields confirmed by the server.
+4. Do not routinely call `task tasks get` after the update when `confirmed` already contains the required state. Query details only if a required field is absent or the user explicitly asks for a full verification.
 
 > [!CAUTION]
 > This is a **Write Operation** -- You must confirm the user's intent before executing.

tests/cli_e2e/apps/apps_file_upload_dryrun_test.go

@@ -0,0 +1,62 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package apps
+
+import (
+	"context"
+	"os"
+	"path/filepath"
+	"testing"
+	"time"
+
+	clie2e "github.com/larksuite/cli/tests/cli_e2e"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+	"github.com/tidwall/gjson"
+)
+
+func TestAppsFileUploadDryRun_AcceptsAbsoluteHostPath(t *testing.T) {
+	setAppsDryRunEnv(t)
+	absolutePath := filepath.Join(t.TempDir(), "report.pdf")
+	require.NoError(t, os.WriteFile(absolutePath, []byte("dry-run-input"), 0o600))
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"apps", "+file-upload",
+			"--app-id", "app_x",
+			"--file", absolutePath,
+			"--dry-run",
+		},
+		DefaultAs: "user",
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 0)
+
+	assert.Equal(t, "POST", clie2e.DryRunGet(result.Stdout, "api.0.method").String())
+	assert.Equal(t, "/open-apis/spark/v1/apps/app_x/storage/file_pre_upload", clie2e.DryRunGet(result.Stdout, "api.0.url").String())
+	assert.Equal(t, "report.pdf", clie2e.DryRunGet(result.Stdout, "api.0.body.file_name").String())
+}
+
+func TestAppsFileUploadDryRun_RejectsMissingHostPath(t *testing.T) {
+	setAppsDryRunEnv(t)
+	missingAbsolutePath := filepath.Join(t.TempDir(), "does-not-exist", "report.pdf")
+
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	t.Cleanup(cancel)
+	result, err := clie2e.RunCmd(ctx, clie2e.Request{
+		Args: []string{
+			"apps", "+file-upload",
+			"--app-id", "app_x",
+			"--file", missingAbsolutePath,
+			"--dry-run",
+		},
+		DefaultAs: "user",
+	})
+	require.NoError(t, err)
+	result.AssertExitCode(t, 2)
+	require.Equal(t, "invalid_argument", gjson.Get(result.Stderr, "error.subtype").String(), result.Stderr)
+	require.Equal(t, "--file", gjson.Get(result.Stderr, "error.param").String(), result.Stderr)
+}