feat: unify output surface contract for flags, formats and errors

Consolidate the CLI output/error contract so agents can predict behavior
from a command's declaration:

- --json / --format resolved through a single FormatCapabilities set;
  explicit --format wins over --json across api, service, shortcut and
  auth scopes
- --format pretty renders as indented JSON via its own Format case,
  no longer aliased to table
- a single root FlagErrorFunc classifies pflag typed errors; the mail
  and sheets local FlagErrorFunc hooks are removed
- cobra argument, required-flag and flag-group errors are typed at their
  validation stage; the usage-error text markers are removed
- root and group unknown commands return structured suggestions
- manifest-export marks pure group nodes as non-runnable

.github/workflows/ci.yml

@@ -86,8 +86,10 @@ jobs:
         run: echo "QUALITY_GATE_CHANGED_FROM=$(bash scripts/resolve-changed-from.sh)" >> "$GITHUB_ENV"
       - name: Run golangci-lint
         run: go run github.com/golangci/golangci-lint/v2/cmd/golangci-lint@v2.1.6 run --new-from-rev="$QUALITY_GATE_CHANGED_FROM"
-      - name: Run errs/ lint guards (lintcheck)
+      - name: Run source-contract lint guards (lintcheck)
         run: go run -C lint . --changed-from "$QUALITY_GATE_CHANGED_FROM" ..
+      - name: Run lint module tests
+        run: go test -C lint ./... -count=1
 
   script-test:
     needs: fast-gate

AGENTS.md

@@ -105,6 +105,20 @@ Signatures that are easy to guess wrong:
 
 Program output (JSON envelopes) goes to stdout. Progress, warnings, hints go to stderr. Mixing them corrupts pipe chains.
 
+### Typed data over loose maps
+
+Parse `map[string]interface{}` into a typed struct at the boundary — one projection function per shape — and let everything downstream consume struct fields, not string keys. A typo'd map key compiles fine and fails at runtime, which an agent then debugs blind.
+
+Use distinct types when two values could be swapped silently: see `internal/meta.Token` — a bare string compiles on either side of a string/string signature, a distinct type does not.
+
+Legacy loose-map code exists in older paths. Match its call sites when touching it, but do not copy the pattern into new code.
+
+### Transcribe faithfully — no silent fallbacks
+
+When code echoes input onward (request previews, transformations, proxies), transcribe verbatim. A `default:` branch that coerces unrecognized input into a plausible value ("unknown HTTP verb → GET") makes the output lie, and an agent reasons from the lie.
+
+The same rule applies to flag combinations and internal wiring: if a requested option cannot be honored, return a typed validation error — never silently substitute another behavior and exit 0. Silent guesses (defaulting a missing identity, discarding writes on a nil writer) are bugs even when every current caller happens to avoid them.
+
 ### Use `vfs.*` instead of `os.*`
 
 All filesystem access goes through `internal/vfs`. This enables test mocking.
@@ -116,6 +130,7 @@ CLI arguments are untrusted (they come from AI agents). Call `validate.SafeInput
 ### Tests
 
 - Every behavior change needs a test alongside the change.
+- A contract test must fail if the implementation is reverted. If you can undo the code change and the suite stays green, the contract is not pinned — assert the new field/behavior directly, not a happy-path substring.
 - `cmdutil.TestFactory(t, config)` for test factories.
 - `t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())` to isolate config state.
 

CHANGELOG.md

@@ -2,6 +2,54 @@
 
 All notable changes to this project will be documented in this file.
 
+## [v1.0.69] - 2026-07-13
+
+### Features
+
+- support docs fetch selection anchors (#1815)
+- **apps**: support modern_html app type with TOS publish path and app type querying
+- **im**: show bot sender display names when reading messages (#1829)
+- add drive list comments shortcut (#1845)
+- support wiki sources in drive export (#1802)
+- add application domain with slash command management shortcuts (#1806)
+- validate IM idempotency key length (#1797)
+- surface reply context and mentions in im.message.receive_v1 (#1798)
+
+### Bug Fixes
+
+- route brand-sensitive endpoints through the resolver (#1836)
+
+### Documentation
+
+- document OKR block XML guidance (#1648)
+- refine doubao whiteboard workflow routing (#1841)
+- clarify Mindnote token handling (#1827)
+
+### Tests
+
+- isolate semantic waiver fixtures from wall clock
+
+### Misc
+
+- Merge lark sheets development branch (#1833)
+
+## [v1.0.68] - 2026-07-09
+
+### Features
+
+- **drive**: Strengthen lark-drive high-risk write operations and read-only recognition boundaries. (#1801)
+- **slides**: add slides chart demo reference
+
+### Bug Fixes
+
+- register and consume --json shorthand for custom-format shortcuts (#1737)
+- **drive**: abort push on parent sibling limit (#1813)
+
+### Documentation
+
+- require native charts in slide planning
+- register knowledge organize workflow (#1828)
+
 ## [v1.0.67] - 2026-07-08
 
 ### Features
@@ -1421,6 +1469,8 @@ Bundled AI agent skills for intelligent assistance:
 - Bilingual documentation (English & Chinese).
 - CI/CD pipelines: linting, testing, coverage reporting, and automated releases.
 
+[v1.0.69]: https://github.com/larksuite/cli/releases/tag/v1.0.69
+[v1.0.68]: https://github.com/larksuite/cli/releases/tag/v1.0.68
 [v1.0.67]: https://github.com/larksuite/cli/releases/tag/v1.0.67
 [v1.0.66]: https://github.com/larksuite/cli/releases/tag/v1.0.66
 [v1.0.65]: https://github.com/larksuite/cli/releases/tag/v1.0.65

cmd/api/api.go

@@ -40,6 +40,7 @@ type APIOptions struct {
 	PageLimit int
 	PageDelay int
 	Format    string
+	JSON      bool
 	JqExpr    string
 	DryRun    bool
 	File      string
@@ -88,6 +89,11 @@ Examples:
 			opts.Cmd = cmd
 			opts.Ctx = cmd.Context()
 			opts.As = core.Identity(asStr)
+			format, err := output.StandardFormats.Resolve(opts.Format, cmd.Flags().Changed("format"), opts.JSON)
+			if err != nil {
+				return err
+			}
+			opts.Format = format
 			if runF != nil {
 				return runF(opts)
 			}
@@ -103,8 +109,8 @@ Examples:
 	cmd.Flags().IntVar(&opts.PageSize, "page-size", 0, "page size (0 = use API default)")
 	cmd.Flags().IntVar(&opts.PageLimit, "page-limit", 10, "max pages to fetch with --page-all (0 = unlimited)")
 	cmd.Flags().IntVar(&opts.PageDelay, "page-delay", 200, "delay in ms between pages")
-	cmd.Flags().StringVar(&opts.Format, "format", "json", "output format: json|ndjson|table|csv")
-	cmd.Flags().Bool("json", false, "shorthand for --format json")
+	cmd.Flags().StringVar(&opts.Format, "format", "json", output.StandardFormats.Usage())
+	cmd.Flags().BoolVar(&opts.JSON, "json", false, "shorthand for --format json")
 	cmd.Flags().StringVarP(&opts.JqExpr, "jq", "q", "", "jq expression to filter JSON output")
 	cmd.Flags().BoolVar(&opts.DryRun, "dry-run", false, "print request without executing")
 	cmd.Flags().StringVar(&opts.File, "file", "", "file to upload as multipart/form-data ([field=]path, supports - for stdin)")
@@ -116,7 +122,7 @@ Examples:
 		return nil, cobra.ShellCompDirectiveNoFileComp
 	}
 	cmdutil.RegisterFlagCompletion(cmd, "format", func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
-		return []string{"json", "ndjson", "table", "csv"}, cobra.ShellCompDirectiveNoFileComp
+		return output.StandardFormats.Names(), cobra.ShellCompDirectiveNoFileComp
 	})
 	cmdutil.SetRisk(cmd, "write")
 
@@ -130,6 +136,13 @@ func buildAPIRequest(opts *APIOptions) (client.RawApiRequest, *cmdutil.FileUploa
 	stdin := opts.Factory.IOStreams.In
 	fileIO := opts.Factory.ResolveFileIO(opts.Ctx)
 
+	if opts.Method == "" {
+		return client.RawApiRequest{}, nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"HTTP method must not be empty").
+			WithHint("pass the verb as the first argument, e.g. lark-cli api GET /open-apis/...").
+			WithParam("<method>")
+	}
+
 	// Validate --file mutual exclusions first.
 	if err := cmdutil.ValidateFileFlag(opts.File, opts.Params, opts.Data, opts.Output, opts.PageAll, opts.Method); err != nil {
 		return client.RawApiRequest{}, nil, err
@@ -243,9 +256,9 @@ func apiRun(opts *APIOptions) error {
 
 	if opts.DryRun {
 		if fileMeta != nil {
-			return cmdutil.PrintDryRunWithFile(f.IOStreams.Out, request, config, opts.Format, fileMeta.FieldName, fileMeta.FilePath, fileMeta.FormFields)
+			return cmdutil.PrintDryRunWithFile(request, config, dryRunOutputOptions(f, opts), *fileMeta)
 		}
-		return apiDryRun(f, request, config, opts.Format)
+		return apiDryRun(f, request, config, opts)
 	}
 	// Identity info is now included in the JSON envelope; skip stderr printing.
 	// cmdutil.PrintIdentity(f.IOStreams.ErrOut, opts.As, config, f.IdentityAutoDetected)
@@ -256,10 +269,7 @@ func apiRun(opts *APIOptions) error {
 	}
 
 	out := f.IOStreams.Out
-	format, formatOK := output.ParseFormat(opts.Format)
-	if !formatOK {
-		fmt.Fprintf(f.IOStreams.ErrOut, "warning: unknown format %q, falling back to json\n", opts.Format)
-	}
+	format, _ := output.ParseFormat(opts.Format)
 
 	if opts.PageAll {
 		return apiPaginate(opts.Ctx, ac, request, format, opts.JqExpr, out, f.IOStreams.ErrOut, opts.Cmd.CommandPath(),
@@ -297,8 +307,19 @@ func apiRun(opts *APIOptions) error {
 	return nil
 }
 
-func apiDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, format string) error {
-	return cmdutil.PrintDryRun(f.IOStreams.Out, request, config, format)
+func apiDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, opts *APIOptions) error {
+	return cmdutil.PrintDryRun(request, config, dryRunOutputOptions(f, opts))
+}
+
+func dryRunOutputOptions(f *cmdutil.Factory, opts *APIOptions) cmdutil.DryRunOutputOptions {
+	return cmdutil.DryRunOutputOptions{
+		Format:      opts.Format,
+		JqExpr:      opts.JqExpr,
+		CommandPath: opts.Cmd.CommandPath(),
+		Identity:    opts.As,
+		Out:         f.IOStreams.Out,
+		ErrOut:      f.IOStreams.ErrOut,
+	}
 }
 
 func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawApiRequest, format output.Format, jqExpr string, out, errOut io.Writer, commandPath string, pagOpts client.PaginationOptions) error {
@@ -325,6 +346,24 @@ func apiPaginate(ctx context.Context, ac *client.APIClient, request client.RawAp
 	}
 
 	switch format {
+	case output.FormatPretty:
+		result, err := ac.PaginateAll(ctx, request, pagOpts)
+		if err != nil {
+			return errs.MarkRaw(err)
+		}
+		if apiErr := ac.CheckResponse(result, pagOpts.Identity); apiErr != nil {
+			output.FormatValue(out, result, output.FormatPretty)
+			return errs.MarkRaw(apiErr)
+		}
+		scanResult := output.ScanForSafety(commandPath, result, errOut)
+		if scanResult.Blocked {
+			return errs.MarkRaw(scanResult.BlockErr)
+		}
+		if scanResult.Alert != nil {
+			output.WriteAlertWarning(errOut, scanResult.Alert)
+		}
+		output.FormatValue(out, result, output.FormatPretty)
+		return nil
 	case output.FormatNDJSON, output.FormatTable, output.FormatCSV:
 		pf := output.NewPaginatedFormatter(out, format)
 		result, hasItems, err := ac.StreamPages(ctx, request, func(items []interface{}) error {

cmd/api/api_test.go

@@ -68,8 +68,44 @@ func TestApiCmd_FlagParsing(t *testing.T) {
 	}
 }
 
+func TestApiCmd_OutputFormatResolution(t *testing.T) {
+	tests := []struct {
+		name string
+		args []string
+		want string
+	}{
+		{name: "json shorthand", args: []string{"--json"}, want: "json"},
+		{name: "explicit format wins", args: []string{"--format", "table", "--json"}, want: "table"},
+		{name: "pretty format", args: []string{"--format", "PRETTY"}, want: "pretty"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+				AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+			})
+			var gotOpts *APIOptions
+			cmd := newTestApiCmd(f, func(opts *APIOptions) error {
+				gotOpts = opts
+				return nil
+			})
+			args := []string{"GET", "/open-apis/test", "--as", "bot"}
+			cmd.SetArgs(append(args, tt.args...))
+			if err := cmd.Execute(); err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			if gotOpts == nil {
+				t.Fatal("expected options to be captured")
+			}
+			if gotOpts.Format != tt.want {
+				t.Fatalf("format = %q, want %q", gotOpts.Format, tt.want)
+			}
+		})
+	}
+}
+
 func TestApiCmd_DryRun(t *testing.T) {
-	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+	f, stdout, stderr, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
 	})
 
@@ -79,12 +115,42 @@ func TestApiCmd_DryRun(t *testing.T) {
 	if err != nil {
 		t.Fatalf("unexpected error: %v", err)
 	}
-	output := stdout.String()
-	if !strings.Contains(output, "Dry Run") {
-		t.Error("expected dry run output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\nstdout:\n%s\nstderr:\n%s", err, stdout.String(), stderr.String())
 	}
-	if !strings.Contains(output, "/open-apis/test") {
-		t.Error("expected path in dry run output")
+	if got["ok"] != true || got["identity"] != "bot" || got["dry_run"] != true {
+		t.Fatalf("unexpected dry-run envelope: %#v", got)
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("data = %#v, want object", got["data"])
+	}
+	api, ok := data["api"].([]interface{})
+	if !ok || len(api) != 1 {
+		t.Fatalf("api = %#v, want one call", data["api"])
+	}
+	call, ok := api[0].(map[string]interface{})
+	if !ok || call["url"] != "/open-apis/test" {
+		t.Fatalf("api[0] = %#v", api[0])
+	}
+	if strings.Contains(stdout.String(), "=== Dry Run ===") {
+		t.Fatalf("stdout should not contain dry-run banner: %s", stdout.String())
+	}
+}
+
+func TestApiCmd_DryRunWithJq(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	cmd := newTestApiCmd(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/test", "--as", "bot", "--dry-run", "--jq", ".data.api[0].url"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got := strings.TrimSpace(stdout.String()); got != "/open-apis/test" {
+		t.Fatalf("jq output = %q, want /open-apis/test", got)
 	}
 }
 
@@ -139,6 +205,43 @@ func TestApiCmd_BotMode(t *testing.T) {
 	}
 }
 
+func TestApiCmd_PrettyFormatsRealResponse(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pretty", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/test",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"items": []interface{}{map[string]interface{}{"name": "Alice"}},
+			},
+		},
+	})
+
+	cmd := newTestApiCmd(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/test", "--as", "bot", "--format", "pretty"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("pretty output should be valid JSON: %v\n%s", err, out)
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("pretty output data = %#v", got["data"])
+	}
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("pretty output data.items = %#v", data["items"])
+	}
+	if !strings.Contains(out, "\n  \"data\": {") || strings.Contains(out, "─") {
+		t.Fatalf("pretty output should be indented JSON rather than a table, got:\n%s", out)
+	}
+}
+
 func TestApiCmd_MissingArgs(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
@@ -152,6 +255,22 @@ func TestApiCmd_MissingArgs(t *testing.T) {
 	}
 }
 
+func TestApiCmd_EmptyMethodRejected(t *testing.T) {
+	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	cmd := newTestApiCmd(f, nil)
+	cmd.SetArgs([]string{"", "/open-apis/test", "--as", "bot", "--dry-run"})
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected validation error for empty HTTP method")
+	}
+	if !strings.Contains(err.Error(), "method") {
+		t.Fatalf("error should name the method argument, got: %v", err)
+	}
+}
+
 func TestApiCmd_InvalidParamsJSON(t *testing.T) {
 	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
@@ -525,6 +644,46 @@ func TestApiCmd_PageAll_BatchAPI_DefaultJSONEnvelope(t *testing.T) {
 	}
 }
 
+func TestApiCmd_PageAll_PrettyAggregatesIndentedJSON(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-pageall-pretty", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/contact/v3/users",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	cmd := newTestApiCmd(f, nil)
+	cmd.SetArgs([]string{"GET", "/open-apis/contact/v3/users", "--as", "bot", "--page-all", "--format", "pretty"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	out := stdout.String()
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("page-all pretty output should be valid JSON: %v\n%s", err, out)
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("page-all pretty output data = %#v", got["data"])
+	}
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("page-all pretty output data.items = %#v", data["items"])
+	}
+	if !strings.Contains(out, "\n  \"data\": {") || strings.Contains(out, "─") {
+		t.Fatalf("page-all pretty output should be aggregated indented JSON, got:\n%s", out)
+	}
+}
+
 type apiContentSafetyProvider struct {
 	called bool
 	path   string
@@ -1000,11 +1159,23 @@ func TestApiCmd_DryRunWithFile(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 	out := stdout.String()
-	if !strings.Contains(out, "image") {
-		t.Errorf("expected dry-run output to mention file field, got: %s", out)
+	var env map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, out)
 	}
-	if !strings.Contains(out, "Dry Run") {
-		t.Errorf("expected dry-run header, got: %s", out)
+	if env["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", env["dry_run"])
+	}
+	data := env["data"].(map[string]interface{})
+	api := data["api"].([]interface{})
+	call := api[0].(map[string]interface{})
+	body := call["body"].(map[string]interface{})
+	file := body["file"].(map[string]interface{})
+	if file["field"] != "image" || file["path"] != tmpFile {
+		t.Fatalf("unexpected file dry-run body: %#v", body)
+	}
+	if strings.Contains(out, "=== Dry Run ===") {
+		t.Fatalf("stdout should not contain dry-run banner: %s", out)
 	}
 }
 

cmd/auth/auth_test.go

@@ -355,7 +355,31 @@ func TestAuthScopesCmd_FlagParsing(t *testing.T) {
 	}
 }
 
-func TestAuthScopesCmd_JSONFlagForcesJSONFormat(t *testing.T) {
+func TestAuthScopesCmd_JSONShorthand(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	var gotOpts *ScopesOptions
+	cmd := NewCmdAuthScopes(f, func(opts *ScopesOptions) error {
+		gotOpts = opts
+		return nil
+	})
+	cmd.SetArgs([]string{"--json"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if gotOpts == nil {
+		t.Fatal("expected options to be captured")
+	}
+	if !gotOpts.JSON || gotOpts.Format != "json" {
+		t.Fatalf("JSON = %v, format = %q; want true, json", gotOpts.JSON, gotOpts.Format)
+	}
+}
+
+func TestAuthScopesCmd_ExplicitFormatWinsOverJSONShorthand(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu,
 	})
@@ -376,8 +400,8 @@ func TestAuthScopesCmd_JSONFlagForcesJSONFormat(t *testing.T) {
 	if !gotOpts.JSON {
 		t.Error("expected JSON=true")
 	}
-	if gotOpts.Format != "json" {
-		t.Errorf("expected format json, got %s", gotOpts.Format)
+	if gotOpts.Format != "pretty" {
+		t.Errorf("expected explicit format pretty, got %s", gotOpts.Format)
 	}
 }
 

cmd/auth/login_messages.go

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

cmd/auth/scopes.go

@@ -31,9 +31,11 @@ func NewCmdAuthScopes(f *cmdutil.Factory, runF func(*ScopesOptions) error) *cobr
 		Short: "Query scopes enabled for the app",
 		RunE: func(cmd *cobra.Command, args []string) error {
 			opts.Ctx = cmd.Context()
-			if opts.JSON {
-				opts.Format = "json"
+			format, err := output.JSONPrettyFormats.Resolve(opts.Format, cmd.Flags().Changed("format"), opts.JSON)
+			if err != nil {
+				return err
 			}
+			opts.Format = format
 			if runF != nil {
 				return runF(opts)
 			}
@@ -41,8 +43,11 @@ func NewCmdAuthScopes(f *cmdutil.Factory, runF func(*ScopesOptions) error) *cobr
 		},
 	}
 
-	cmd.Flags().StringVar(&opts.Format, "format", "json", "output format: json (default) | pretty")
-	cmd.Flags().BoolVar(&opts.JSON, "json", false, "structured JSON output")
+	cmd.Flags().StringVar(&opts.Format, "format", "json", output.JSONPrettyFormats.Usage())
+	cmd.Flags().BoolVar(&opts.JSON, "json", false, "shorthand for --format json")
+	cmdutil.RegisterFlagCompletion(cmd, "format", func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
+		return output.JSONPrettyFormats.Names(), cobra.ShellCompDirectiveNoFileComp
+	})
 	cmdutil.SetRisk(cmd, "read")
 
 	return cmd
@@ -75,10 +80,10 @@ func authScopesRun(opts *ScopesOptions) error {
 			"failed to get app scope info: %v", err).WithCause(err)
 	}
 	if opts.Format == "pretty" {
-		fmt.Fprintf(f.IOStreams.ErrOut, "App ID: %s\n", config.AppID)
-		fmt.Fprintf(f.IOStreams.ErrOut, "Enabled scopes (%d):\n\n", len(appInfo.UserScopes))
+		fmt.Fprintf(f.IOStreams.Out, "App ID: %s\n", config.AppID)
+		fmt.Fprintf(f.IOStreams.Out, "Enabled scopes (%d):\n\n", len(appInfo.UserScopes))
 		for _, s := range appInfo.UserScopes {
-			fmt.Fprintf(f.IOStreams.ErrOut, "  • %s\n", s)
+			fmt.Fprintf(f.IOStreams.Out, "  • %s\n", s)
 		}
 	} else {
 		output.PrintJson(f.IOStreams.Out, map[string]interface{}{

cmd/auth/scopes_test.go

@@ -4,9 +4,11 @@
 package auth
 
 import (
+	"bytes"
 	"context"
 	"errors"
 	"fmt"
+	"strings"
 	"testing"
 
 	"github.com/larksuite/cli/errs"
@@ -26,6 +28,35 @@ func stubGetAppInfoErr(t *testing.T, errToReturn error) {
 	t.Cleanup(func() { getAppInfoFn = prev })
 }
 
+func TestAuthScopesRun_PrettyWritesBulletedScopesToStdout(t *testing.T) {
+	prev := getAppInfoFn
+	getAppInfoFn = func(ctx context.Context, f *cmdutil.Factory, appId string) (*appInfo, error) {
+		return &appInfo{UserScopes: []string{"im:message"}}, nil
+	}
+	t.Cleanup(func() { getAppInfoFn = prev })
+
+	opts := scopesTestFactory(t)
+	opts.Format = "pretty"
+	out, ok := opts.Factory.IOStreams.Out.(*bytes.Buffer)
+	if !ok {
+		t.Fatalf("stdout type = %T, want *bytes.Buffer", opts.Factory.IOStreams.Out)
+	}
+	errOut, ok := opts.Factory.IOStreams.ErrOut.(*bytes.Buffer)
+	if !ok {
+		t.Fatalf("stderr type = %T, want *bytes.Buffer", opts.Factory.IOStreams.ErrOut)
+	}
+
+	if err := authScopesRun(opts); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if !strings.Contains(out.String(), "  • im:message\n") {
+		t.Fatalf("stdout missing bulleted scope: %q", out.String())
+	}
+	if strings.Contains(errOut.String(), "im:message") {
+		t.Fatalf("scope should remain on stdout, stderr = %q", errOut.String())
+	}
+}
+
 // scopesTestFactory builds a Factory + ScopesOptions pair sufficient to drive
 // authScopesRun. Config has a non-empty AppID so we get past the config gate
 // and reach the getAppInfoFn call.

cmd/build.go

@@ -25,8 +25,10 @@ import (
 	"github.com/larksuite/cli/internal/build"
 	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/hook"
 	"github.com/larksuite/cli/internal/keychain"
+	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/shortcuts"
 	"github.com/spf13/cobra"
 )
@@ -42,6 +44,18 @@ type buildConfig struct {
 	skipStrictMode bool
 	skipService    bool
 	serviceCatalog *apicatalog.Catalog
+	startupBrand   core.LarkBrand
+}
+
+// WithStartupBrand initializes the API registry with the given brand before
+// any command registration touches the runtime catalog. Without it the
+// registry's sync.Once locks onto the Feishu default at first catalog access,
+// long before the lazily-resolved config brand is known — see
+// ResolveStartupBrand for the caller-side resolution.
+func WithStartupBrand(brand core.LarkBrand) BuildOption {
+	return func(c *buildConfig) {
+		c.startupBrand = brand
+	}
 }
 
 // WithIO sets the IO streams for the CLI by wrapping raw reader/writers.
@@ -154,6 +168,12 @@ func buildInternal(ctx context.Context, inv cmdutil.InvocationContext, opts ...B
 		cfg.streams = cmdutil.SystemIO()
 	}
 
+	// Initialize the registry brand before anything touches the runtime
+	// catalog (its sync.Once would otherwise lock onto the Feishu default).
+	if cfg.startupBrand != "" {
+		registry.InitWithBrand(cfg.startupBrand)
+	}
+
 	f := cmdutil.NewDefault(cfg.streams, inv)
 	if cfg.keychain != nil {
 		f.Keychain = cfg.keychain
@@ -214,6 +234,7 @@ func buildInternal(ctx context.Context, inv cmdutil.InvocationContext, opts ...B
 	groupRootCommands(rootCmd)
 
 	installUnknownSubcommandGuard(rootCmd)
+	installCobraValidationGuards(rootCmd)
 	// Bare `lark-cli` in an interactive terminal offers an interactive upgrade
 	// before printing help; non-bare invocations and non-TTY are unaffected.
 	installRootUpgradePrompt(f, rootCmd)

cmd/build_test.go

@@ -4,11 +4,15 @@
 package cmd
 
 import (
+	"bytes"
 	"context"
+	"errors"
 	"strings"
 	"testing"
 
+	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/output"
 	"github.com/spf13/cobra"
 )
 
@@ -26,6 +30,85 @@ func TestBuildWithoutPluginsStillBuildsBuiltinCommands(t *testing.T) {
 	}
 }
 
+func buildValidationTestRoot(t *testing.T) *cobra.Command {
+	t.Helper()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	return Build(context.Background(), cmdutil.InvocationContext{},
+		WithIO(strings.NewReader(""), &bytes.Buffer{}, &bytes.Buffer{}),
+		WithoutPlugins(),
+		WithoutServiceCommands(),
+		WithoutStrictMode(),
+	)
+}
+
+func TestBuiltRoot_TopLevelTypoReturnsStructuredSuggestion(t *testing.T) {
+	root := buildValidationTestRoot(t)
+	root.SetArgs([]string{"imm"})
+
+	err := root.Execute()
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+	}
+	if len(validationErr.Params) != 1 || validationErr.Params[0].Name != "imm" {
+		t.Fatalf("params = %v, want one entry named imm", validationErr.Params)
+	}
+	found := false
+	for _, candidate := range validationErr.Params[0].Suggestions {
+		if candidate == "im" {
+			found = true
+		}
+	}
+	if !found {
+		t.Fatalf("suggestions = %v, want im", validationErr.Params[0].Suggestions)
+	}
+}
+
+func TestBuiltRoot_SheetsOneRequiredGroupReturnsValidationExit(t *testing.T) {
+	root := buildValidationTestRoot(t)
+	root.SetArgs([]string{
+		"sheets", "+csv-put",
+		"--url", "https://example.com/sheets/token",
+		"--sheet-name", "Sheet1",
+		"--csv", "a,b",
+	})
+
+	err := root.Execute()
+	problem, ok := errs.ProblemOf(err)
+	if !ok {
+		t.Fatalf("expected typed problem, got %T: %v", err, err)
+	}
+	if problem.Category != errs.CategoryValidation || problem.Subtype != errs.SubtypeInvalidArgument {
+		t.Fatalf("problem = %s/%s, want validation/invalid_argument", problem.Category, problem.Subtype)
+	}
+	if got := output.ExitCodeOf(err); got != output.ExitValidation {
+		t.Fatalf("exit code = %d, want %d", got, output.ExitValidation)
+	}
+}
+
+func TestBuiltRoot_MailUnknownFlagUsesSharedSuggestions(t *testing.T) {
+	root := buildValidationTestRoot(t)
+	root.SetArgs([]string{"mail", "+send", "--tos", "alice@example.com"})
+
+	err := root.Execute()
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+	}
+	if len(validationErr.Params) != 1 || validationErr.Params[0].Name != "--tos" {
+		t.Fatalf("params = %v, want one entry named --tos", validationErr.Params)
+	}
+	found := false
+	for _, candidate := range validationErr.Params[0].Suggestions {
+		if candidate == "--to" {
+			found = true
+		}
+	}
+	if !found {
+		t.Fatalf("suggestions = %v, want --to", validationErr.Params[0].Suggestions)
+	}
+}
+
 func findCommand(root *cobra.Command, path string) *cobra.Command {
 	parts := strings.Fields(path)
 	cmd := root

cmd/config/bind_test.go

@@ -916,25 +916,6 @@ func TestReadDotenv_ValueWithEquals(t *testing.T) {
 	}
 }
 
-func TestNormalizeBrand(t *testing.T) {
-	tests := []struct {
-		input string
-		want  string
-	}{
-		{"", "feishu"},
-		{"feishu", "feishu"},
-		{"lark", "lark"},
-		{"LARK", "lark"},
-		{" lark ", "lark"},
-		{"Lark", "lark"},
-	}
-	for _, tt := range tests {
-		if got := normalizeBrand(tt.input); got != tt.want {
-			t.Errorf("normalizeBrand(%q) = %q, want %q", tt.input, got, tt.want)
-		}
-	}
-}
-
 func TestResolveOpenClawConfigPath_Overrides(t *testing.T) {
 	t.Run("OPENCLAW_CONFIG_PATH wins", func(t *testing.T) {
 		custom := filepath.Join(t.TempDir(), "custom.json")

cmd/config/binder.go

@@ -205,7 +205,7 @@ func (b *openclawBinder) Build(appID string) (*core.AppConfig, error) {
 	return &core.AppConfig{
 		AppId:     selected.AppID,
 		AppSecret: stored,
-		Brand:     core.LarkBrand(normalizeBrand(selected.Brand)),
+		Brand:     core.ParseBrand(selected.Brand),
 	}, nil
 }
 
@@ -261,7 +261,7 @@ func (b *hermesBinder) Build(appID string) (*core.AppConfig, error) {
 	return &core.AppConfig{
 		AppId:     appID,
 		AppSecret: stored,
-		Brand:     core.LarkBrand(normalizeBrand(b.envMap["FEISHU_DOMAIN"])),
+		Brand:     core.ParseBrand(b.envMap["FEISHU_DOMAIN"]),
 	}, nil
 }
 
@@ -326,7 +326,7 @@ func (b *larkChannelBinder) Build(appID string) (*core.AppConfig, error) {
 	return &core.AppConfig{
 		AppId:     appID,
 		AppSecret: stored,
-		Brand:     core.LarkBrand(normalizeBrand(b.cfg.Accounts.App.Tenant)),
+		Brand:     core.ParseBrand(b.cfg.Accounts.App.Tenant),
 	}, nil
 }
 
@@ -350,16 +350,6 @@ func sourceDisplayName(source string) string {
 	}
 }
 
-// normalizeBrand applies .strip().lower() and defaults to "feishu".
-// Aligns with Hermes gateway/platforms/feishu.py:1119 behavior.
-func normalizeBrand(raw string) string {
-	s := strings.TrimSpace(strings.ToLower(raw))
-	if s == "" {
-		return "feishu"
-	}
-	return s
-}
-
 // resolveHermesEnvPath returns the path to Hermes's .env file.
 // Respects HERMES_HOME override; defaults to ~/.hermes/.env.
 //

cmd/config/init_interactive.go

@@ -5,7 +5,9 @@ package config
 
 import (
 	"context"
+	"errors"
 	"fmt"
+	"net"
 
 	"github.com/charmbracelet/huh"
 	"github.com/larksuite/cli/internal/build"
@@ -180,9 +182,9 @@ func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride cor
 	// Use the shared proxy-plugin-aware transport so registration traffic is not
 	// a bypass of proxy plugin mode.
 	httpClient := transport.NewHTTPClient(0)
-	authResp, err := larkauth.RequestAppRegistration(httpClient, larkBrand, f.IOStreams.ErrOut)
+	authResp, err := larkauth.RequestAppRegistration(ctx, httpClient, larkBrand, f.IOStreams.ErrOut)
 	if err != nil {
-		return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration failed: %v", err).WithCause(err)
+		return nil, classifyRegistrationBeginError(err)
 	}
 
 	// Step 2: Build and display verification URL + QR code
@@ -208,33 +210,17 @@ func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride cor
 		fmt.Fprintf(f.IOStreams.ErrOut, "  %s\n\n", verificationURL)
 		fmt.Fprintf(f.IOStreams.ErrOut, "%s\n", msg.WaitingForScanNonTTY)
 	}
-	result, err := larkauth.PollAppRegistration(ctx, httpClient, core.BrandFeishu, authResp.DeviceCode, authResp.Interval, authResp.ExpiresIn, f.IOStreams.ErrOut)
+	// Step 4: Poll for credentials (brand discovery lives in internal/auth);
+	// this layer only classifies the terminal error and saves the result.
+	result, finalBrand, err := larkauth.RegisterAppWithDiscovery(ctx, httpClient, authResp, f.IOStreams.ErrOut)
 	if err != nil {
-		return nil, errs.NewAuthenticationError(errs.SubtypeUnknown, "%v", err).WithCause(err)
-	}
-
-	// Step 4: Handle Lark brand special case
-	// If tenant_brand=lark and no client_secret, retry with lark brand endpoint
-	if result.ClientSecret == "" && result.UserInfo != nil && result.UserInfo.TenantBrand == "lark" {
-		// fmt.Fprintf(f.IOStreams.ErrOut, "%s\n", msg.DetectedLarkTenant)
-		result, err = larkauth.PollAppRegistration(ctx, httpClient, core.BrandLark, authResp.DeviceCode, authResp.Interval, authResp.ExpiresIn, f.IOStreams.ErrOut)
-		if err != nil {
-			return nil, errs.NewNetworkError(errs.SubtypeNetworkTransport, "lark endpoint retry failed: %v", err).WithCause(err)
-		}
+		return nil, classifyRegistrationError(err)
 	}
 
 	if result.ClientID == "" || result.ClientSecret == "" {
 		return nil, errs.NewConfigError(errs.SubtypeInvalidClient, "app registration succeeded but missing client_id or client_secret")
 	}
 
-	// Determine final brand from response
-	finalBrand := larkBrand
-	if result.UserInfo != nil && result.UserInfo.TenantBrand == "lark" {
-		finalBrand = core.BrandLark
-	} else if result.UserInfo != nil && result.UserInfo.TenantBrand == "feishu" {
-		finalBrand = core.BrandFeishu
-	}
-
 	fmt.Fprintln(f.IOStreams.ErrOut)
 	output.PrintSuccess(f.IOStreams.ErrOut, fmt.Sprintf(msg.AppCreated, result.ClientID))
 
@@ -245,3 +231,40 @@ func runCreateAppFlow(ctx context.Context, f *cmdutil.Factory, brandOverride cor
 		AppSecret: result.ClientSecret,
 	}, nil
 }
+
+// classifyRegistrationBeginError keeps transport/cancellation failures out of
+// the invalid-client category: the begin request sends no app credentials.
+func classifyRegistrationBeginError(err error) error {
+	switch {
+	case errors.Is(err, context.Canceled):
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "app registration cancelled").WithCause(err)
+	case errors.Is(err, context.DeadlineExceeded):
+		return errs.NewNetworkError(errs.SubtypeNetworkTimeout, "app registration begin timed out: %v", err).WithCause(err)
+	}
+	var netErr net.Error
+	if errors.As(err, &netErr) {
+		subtype := errs.SubtypeNetworkTransport
+		if netErr.Timeout() {
+			subtype = errs.SubtypeNetworkTimeout
+		}
+		return errs.NewNetworkError(subtype, "app registration begin failed: %v", err).WithCause(err)
+	}
+	return errs.NewAPIError(errs.SubtypeUnknown, "app registration begin failed: %v", err).WithCause(err)
+}
+
+// classifyRegistrationError maps registration terminal outcomes to typed
+// errors, preserving causes.
+func classifyRegistrationError(err error) error {
+	switch {
+	case errors.Is(err, larkauth.ErrRegistrationDenied):
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "%v", err).
+			WithHint("re-run `lark-cli config init --new` and approve the authorization request").
+			WithCause(err)
+	case errors.Is(err, larkauth.ErrRegistrationExpired), errors.Is(err, larkauth.ErrRegistrationTimedOut):
+		return errs.NewAuthenticationError(errs.SubtypeTokenExpired, "%v", err).
+			WithHint("re-run `lark-cli config init --new` and complete the scan before the code expires").
+			WithCause(err)
+	default:
+		return errs.NewAuthenticationError(errs.SubtypeUnknown, "app registration failed: %v", err).WithCause(err)
+	}
+}

cmd/config/init_interactive_test.go

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

cmd/event/schema_test.go

@@ -96,6 +96,40 @@ func TestRunSchema_JSONOutput(t *testing.T) {
 	}
 }
 
+func TestRunSchema_ReceiveMessageAgentFieldsJSON(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{AppID: "test"})
+
+	if err := runSchema(f, "im.message.receive_v1", true); err != nil {
+		t.Fatalf("runSchema json: %v", err)
+	}
+
+	var payload map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &payload); err != nil {
+		t.Fatalf("output is not valid JSON: %v\n%s", err, stdout.String())
+	}
+	resolved := payload["resolved_output_schema"].(map[string]interface{})
+	props := resolved["properties"].(map[string]interface{})
+	for _, field := range []string{
+		"root_id",
+		"thread_id",
+		"reply_to",
+		"sender_type",
+		"mentions",
+	} {
+		if _, ok := props[field]; !ok {
+			t.Errorf("receive schema missing field %q", field)
+		}
+	}
+	msgDesc := props["message_id"].(map[string]interface{})["description"].(string)
+	if !strings.Contains(msgDesc, "Recommended idempotency key") {
+		t.Errorf("message_id description should guide deduplication, got %q", msgDesc)
+	}
+	eventDesc := props["event_id"].(map[string]interface{})["description"].(string)
+	if strings.Contains(eventDesc, "safe for deduplication") {
+		t.Errorf("event_id description should not recommend deduplication, got %q", eventDesc)
+	}
+}
+
 func TestRunSchema_TaskUpdateUserAccessJSON(t *testing.T) {
 	f, stdout, _, _ := cmdutil.TestFactory(t, &core.CliConfig{AppID: "test"})
 

cmd/flag_suggest_test.go

@@ -9,28 +9,18 @@ import (
 	"testing"
 
 	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdmeta"
 	"github.com/larksuite/cli/internal/output"
 	"github.com/spf13/cobra"
 )
 
-func TestUnknownFlagName(t *testing.T) {
-	cases := []struct {
-		in   string
-		name string
-		ok   bool
-	}{
-		{"unknown flag: --query", "query", true},
-		{"unknown flag: --with-styles", "with-styles", true},
-		{"unknown shorthand flag: 'z' in -z", "", false},
-		{"flag needs an argument: --find", "", false},
-		{`invalid argument "x" for "--count"`, "", false},
-	}
-	for _, c := range cases {
-		name, ok := unknownFlagName(errors.New(c.in))
-		if name != c.name || ok != c.ok {
-			t.Errorf("unknownFlagName(%q) = (%q,%v), want (%q,%v)", c.in, name, ok, c.name, c.ok)
-		}
+func parseFlagError(t *testing.T, c *cobra.Command, args ...string) error {
+	t.Helper()
+	err := c.Flags().Parse(args)
+	if err == nil {
+		t.Fatalf("Parse(%v) returned nil", args)
 	}
+	return err
 }
 
 func TestFlagDidYouMean_UnknownFlagSuggestsAndListsValid(t *testing.T) {
@@ -39,7 +29,7 @@ func TestFlagDidYouMean_UnknownFlagSuggestsAndListsValid(t *testing.T) {
 	c.Flags().String("find", "", "")
 	c.Flags().Bool("dry-run", false, "")
 
-	err := flagDidYouMean(c, errors.New("unknown flag: --rang")) // typo of --range
+	err := flagDidYouMean(c, parseFlagError(t, c, "--rang")) // typo of --range
 	var verr *errs.ValidationError
 	if !errors.As(err, &verr) {
 		t.Fatalf("expected *errs.ValidationError, got %T", err)
@@ -82,23 +72,86 @@ func TestFlagDidYouMean_UnknownFlagSuggestsAndListsValid(t *testing.T) {
 
 func TestFlagDidYouMean_OtherErrorStaysGeneric(t *testing.T) {
 	c := &cobra.Command{Use: "demo"}
-	err := flagDidYouMean(c, errors.New("flag needs an argument: --find"))
+	c.Flags().String("find", "", "")
+	err := flagDidYouMean(c, parseFlagError(t, c, "--find"))
 	var verr *errs.ValidationError
 	if !errors.As(err, &verr) {
 		t.Fatalf("expected *errs.ValidationError, got %T", err)
 	}
-	// Non-unknown-flag errors stay generic: invalid_argument subtype, no
-	// structured param, generic --help hint (no "did you mean" suggestion).
+	// Non-unknown-flag errors retain the same validation shape and identify the
+	// flag from pflag's typed ValueRequiredError.
 	if verr.Subtype != errs.SubtypeInvalidArgument {
 		t.Errorf("subtype = %q, want invalid_argument (non-unknown-flag errors stay generic)", verr.Subtype)
 	}
 	if code := output.ExitCodeOf(err); code != output.ExitValidation {
 		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
 	}
-	if verr.Param != "" || len(verr.Params) != 0 {
-		t.Errorf("Param=%q Params=%v, want both empty for generic flag error", verr.Param, verr.Params)
+	if len(verr.Params) != 1 || verr.Params[0].Name != "--find" {
+		t.Errorf("Params=%v, want one entry named --find", verr.Params)
 	}
 	if strings.Contains(verr.Hint, "did you mean") {
 		t.Errorf("generic flag error must not produce a did-you-mean hint, got %q", verr.Hint)
 	}
 }
+
+func TestFlagDidYouMean_SheetsListsVisibleFlags(t *testing.T) {
+	root := &cobra.Command{Use: "root"}
+	sheets := &cobra.Command{Use: "sheets"}
+	cmdmeta.SetDomain(sheets, "sheets")
+	root.AddCommand(sheets)
+	sheets.Flags().String("range", "", "")
+	sheets.Flags().Int("width", 0, "")
+
+	err := flagDidYouMean(sheets, parseFlagError(t, sheets, "--cols"))
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	}
+	for _, want := range []string{"--range", "--width"} {
+		if !strings.Contains(validationErr.Hint, want) {
+			t.Errorf("hint should include %q, got %q", want, validationErr.Hint)
+		}
+	}
+}
+
+func TestFlagDidYouMean_InvalidValueTypedError(t *testing.T) {
+	c := &cobra.Command{Use: "demo"}
+	c.Flags().Int("width", 0, "")
+
+	// A non-numeric value for a typed flag surfaces pflag's InvalidValueError.
+	err := flagDidYouMean(c, parseFlagError(t, c, "--width=abc"))
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	}
+	if verr.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if len(verr.Params) != 1 || verr.Params[0].Name != "--width" || verr.Params[0].Reason != "invalid flag value" {
+		t.Errorf("Params = %v, want one --width entry with reason 'invalid flag value'", verr.Params)
+	}
+}
+
+func TestFlagDidYouMean_InvalidSyntaxTypedError(t *testing.T) {
+	c := &cobra.Command{Use: "demo"}
+	c.Flags().String("range", "", "")
+
+	// An empty flag name is bad flag syntax and surfaces pflag's InvalidSyntaxError.
+	err := flagDidYouMean(c, parseFlagError(t, c, "--=oops"))
+	var verr *errs.ValidationError
+	if !errors.As(err, &verr) {
+		t.Fatalf("expected *errs.ValidationError, got %T", err)
+	}
+	if verr.Subtype != errs.SubtypeInvalidArgument {
+		t.Errorf("subtype = %q, want invalid_argument", verr.Subtype)
+	}
+	if code := output.ExitCodeOf(err); code != output.ExitValidation {
+		t.Errorf("exit code = %d, want %d (ExitValidation)", code, output.ExitValidation)
+	}
+	if len(verr.Params) != 1 || verr.Params[0].Reason != "invalid flag syntax" {
+		t.Errorf("Params = %v, want one entry with reason 'invalid flag syntax'", verr.Params)
+	}
+}

cmd/root.go

@@ -107,6 +107,7 @@ func Execute() int {
 		ctx, inv,
 		WithIO(os.Stdin, os.Stdout, os.Stderr),
 		HideProfile(isSingleAppMode()),
+		WithStartupBrand(ResolveStartupBrand(inv.Profile)),
 	)
 
 	// --- Notices (non-blocking) ---
@@ -240,10 +241,10 @@ func configureFlagCompletions(args []string) {
 //     dispatcher no longer promotes any legacy shape here.
 //  2. PartialFailure / BareError signals: the result envelope is already on
 //     stdout; honor the exit code and write nothing to stderr.
-//  3. Residual cobra usage errors (missing required flag, unknown command,
-//     argument validation): typed as an invalid_argument envelope (exit 2),
-//     matching the explicit flag/subcommand guards. Flag parse errors are
-//     already typed upstream by the root FlagErrorFunc.
+//  3. Any untyped error that reaches this boundary is an internal fault.
+//     Cobra argument, required-flag and flag-group errors are typed at their
+//     execution stages by installCobraValidationGuards; flag parse errors are
+//     typed by the root FlagErrorFunc.
 func handleRootError(f *cmdutil.Factory, err error) int {
 	errOut := f.IOStreams.ErrOut
 
@@ -282,57 +283,14 @@ func handleRootError(f *cmdutil.Factory, err error) int {
 		return bareErr.Code
 	}
 
-	// Errors reaching here are untyped: every RunE returns a typed errs.* error
-	// and flag-parse errors are typed by the root FlagErrorFunc. The remainder
-	// is either a cobra usage mistake (missing required flag, unknown command,
-	// wrong arg count), which cobra surfaces as a plain error identified by its
-	// stable text — the same external contract unknownFlagName relies on — or an
-	// untyped error that leaked past the typed boundary. Classify the former as
-	// invalid_argument (exit 2, like the explicit guards); treat the latter as an
-	// internal fault (exit 5) rather than blaming the user's input. The message
-	// is preserved either way, and the typed envelope still carries any pending
-	// deprecation notice.
-	var fallback error
-	if isCobraUsageError(err) {
-		fallback = errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err.Error())
-	} else {
-		fallback = errs.NewInternalError(errs.SubtypeUnknown, "%s", err.Error()).WithCause(err)
-	}
+	// Every user-input stage is typed before execution. A bare error here has
+	// crossed that boundary unexpectedly and must remain visible as an internal
+	// fault instead of being guessed from English message fragments.
+	fallback := errs.NewInternalError(errs.SubtypeUnknown, "%s", err.Error()).WithCause(err)
 	output.WriteTypedErrorEnvelope(errOut, fallback, string(f.ResolvedIdentity))
 	return output.ExitCodeOf(fallback)
 }
 
-// cobraUsageErrorMarkers are the stable error-text fragments cobra / pflag
-// (pinned at v1.10.2) emit for usage mistakes — missing required flag, unknown
-// command / flag, wrong argument count. Cobra surfaces these as plain errors,
-// not a typed value we can match on, so the dispatcher recognizes them by text;
-// this is the same external contract unknownFlagName already depends on. A
-// residual error matching none of these has leaked the typed boundary and is
-// treated as an internal fault, not a user error.
-var cobraUsageErrorMarkers = []string{
-	"unknown command ",
-	"unknown flag: ",
-	"unknown shorthand",
-	"required flag(s) ",
-	"flag needs an argument",
-	"bad flag syntax:",
-	"no such flag ",
-	"invalid argument ",
-	"arg(s), ", // accepts / requires N arg(s), received / only received M
-}
-
-// isCobraUsageError reports whether err is a cobra / pflag usage mistake,
-// identified by the stable error text of the pinned cobra version.
-func isCobraUsageError(err error) bool {
-	msg := err.Error()
-	for _, m := range cobraUsageErrorMarkers {
-		if strings.Contains(msg, m) {
-			return true
-		}
-	}
-	return false
-}
-
 // installUnknownSubcommandGuard replaces cobra's silent help fallback on
 // group commands (no Run/RunE) with an unknown_subcommand error.
 //
@@ -344,6 +302,10 @@ func isCobraUsageError(err error) bool {
 // with reason_code=risk_not_annotated.
 func installUnknownSubcommandGuard(cmd *cobra.Command) {
 	if cmd.HasSubCommands() && cmd.Run == nil && cmd.RunE == nil {
+		// Cobra's legacy Args fallback rejects an unknown top-level token before
+		// RunE can produce ranked suggestions. Explicitly accepting positional
+		// tokens lets every pure group, including root, reach the shared guard.
+		cmd.Args = cobra.ArbitraryArgs
 		cmd.RunE = unknownSubcommandRunE
 		// Route an unknown subcommand to unknownSubcommandRunE even when flags
 		// are also present (e.g. `sheets +cells-find --url ...`). A pure group
@@ -361,6 +323,132 @@ func installUnknownSubcommandGuard(cmd *cobra.Command) {
 	}
 }
 
+// installCobraValidationGuards types errors at the stage where Cobra knows
+// they are user input: positional argument validation, required flags and flag
+// groups. This removes the need for final-boundary message matching.
+func installCobraValidationGuards(cmd *cobra.Command) {
+	if cmd == nil {
+		return
+	}
+	if validateArgs := cmd.Args; validateArgs != nil {
+		cmd.Args = func(c *cobra.Command, args []string) error {
+			err := validateArgs(c, args)
+			if err == nil || errs.IsTyped(err) {
+				return err
+			}
+			return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err.Error()).WithCause(err)
+		}
+	}
+
+	previousPreRunE := cmd.PreRunE
+	previousPreRun := cmd.PreRun
+	cmd.PreRunE = func(c *cobra.Command, args []string) error {
+		if previousPreRunE != nil {
+			if err := previousPreRunE(c, args); err != nil {
+				return err
+			}
+		} else if previousPreRun != nil {
+			previousPreRun(c, args)
+		}
+		if err := c.ValidateRequiredFlags(); err != nil {
+			validationErr := errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err.Error()).WithCause(err)
+			c.Flags().VisitAll(func(flag *pflag.Flag) {
+				if flag.Changed || len(flag.Annotations[cobra.BashCompOneRequiredFlag]) == 0 {
+					return
+				}
+				validationErr.WithParams(errs.InvalidParam{Name: "--" + flag.Name, Reason: "required flag is missing"})
+			})
+			return validationErr.WithHint("run `%s --help` to see required flags", c.CommandPath())
+		}
+		if err := c.ValidateFlagGroups(); err != nil {
+			return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", err.Error()).
+				WithParams(invalidFlagGroupParams(err.Error())...).
+				WithHint("run `%s --help` to see valid flag combinations", c.CommandPath()).
+				WithCause(err)
+		}
+		return nil
+	}
+	cmd.PreRun = nil
+
+	for _, child := range cmd.Commands() {
+		installCobraValidationGuards(child)
+	}
+}
+
+type flagGroupConstraint int
+
+const (
+	flagGroupRequiredTogether flagGroupConstraint = iota
+	flagGroupOneRequired
+	flagGroupMutuallyExclusive
+)
+
+// invalidFlagGroupParams extracts the offending flag group from Cobra's
+// flag-group validation error. The message always names the group as
+// "[flag-a flag-b ...]" and its wording identifies the constraint, so both are
+// read straight from the message instead of re-deriving Cobra's private group
+// state. Pinned to cobra v1.10.2's message format (see go.mod).
+func invalidFlagGroupParams(message string) []errs.InvalidParam {
+	names := flagGroupNamesFromMessage(message)
+	if len(names) == 0 {
+		return nil
+	}
+	return buildFlagGroupParams(names, flagGroupConstraintFromMessage(message))
+}
+
+func buildFlagGroupParams(names []string, constraint flagGroupConstraint) []errs.InvalidParam {
+	flagNames := make([]string, 0, len(names))
+	for _, name := range names {
+		name = strings.TrimLeft(name, "-")
+		if name != "" {
+			flagNames = append(flagNames, "--"+name)
+		}
+	}
+	if len(flagNames) == 0 {
+		return nil
+	}
+	group := "[" + strings.Join(flagNames, " ") + "]"
+	reason := "invalid flag combination in " + group
+	switch constraint {
+	case flagGroupRequiredTogether:
+		reason = "all of " + group + " required together"
+	case flagGroupOneRequired:
+		reason = "one of " + group + " required"
+	case flagGroupMutuallyExclusive:
+		reason = "only one of " + group + " allowed"
+	}
+	params := make([]errs.InvalidParam, 0, len(flagNames))
+	for _, name := range flagNames {
+		params = append(params, errs.InvalidParam{Name: name, Reason: reason})
+	}
+	return params
+}
+
+func flagGroupNamesFromMessage(message string) []string {
+	start := strings.IndexByte(message, '[')
+	if start < 0 {
+		return nil
+	}
+	end := strings.IndexByte(message[start+1:], ']')
+	if end < 0 {
+		return nil
+	}
+	return strings.Fields(message[start+1 : start+1+end])
+}
+
+func flagGroupConstraintFromMessage(message string) flagGroupConstraint {
+	switch {
+	case strings.Contains(message, "at least one of the flags"):
+		return flagGroupOneRequired
+	case strings.Contains(message, "must all be set"):
+		return flagGroupRequiredTogether
+	case strings.Contains(message, "none of the others can be"):
+		return flagGroupMutuallyExclusive
+	default:
+		return flagGroupConstraint(-1)
+	}
+}
+
 // unknownSubcommandRunE replaces cobra's silent help fallback on group commands
 // with a typed *errs.ValidationError: a flag that belongs to a missing
 // subcommand, a misplaced subcommand-only flag, or an unknown subcommand name
@@ -591,17 +679,21 @@ func isLarkDomain(c *cobra.Command) bool {
 	return cmdmeta.Domain(c) != ""
 }
 
-// flagDidYouMean is the root FlagErrorFunc (inherited by all subcommands). It
-// converts cobra's flag-parse errors into a typed validation envelope: an
-// unknown flag gets a focused "did you mean" hint (so agents recover even when
-// the typo is semantic, e.g. --query vs --find, where edit distance alone finds
-// nothing) and the offending flag in `params`. Other flag errors stay typed
-// but generic.
+// flagDidYouMean is the single FlagErrorFunc inherited by all commands. It
+// classifies pflag's typed parse errors and emits one stable validation shape.
 func flagDidYouMean(c *cobra.Command, ferr error) error {
-	name, isUnknown := unknownFlagName(ferr)
-	if !isUnknown {
-		return errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", ferr.Error()).
-			WithHint("run `%s --help` for valid flags", c.CommandPath())
+	if ferr == nil {
+		return nil
+	}
+	var notExist *pflag.NotExistError
+	if !errors.As(ferr, &notExist) {
+		return typedFlagParseError(c, ferr)
+	}
+
+	name := notExist.GetSpecifiedName()
+	rawName := "--" + name
+	if notExist.GetSpecifiedShortnames() != "" {
+		rawName = "-" + name
 	}
 	valid := visibleFlagNames(c)
 	suggestions := suggest.Closest(name, valid, 3)
@@ -613,36 +705,69 @@ func flagDidYouMean(c *cobra.Command, ferr error) error {
 		hint = fmt.Sprintf("did you mean %s? (run `%s --help` for all flags)",
 			strings.Join(suggestions, ", "), c.CommandPath())
 	}
-	// The ranked candidates ride on the param as machine-readable Suggestions so
-	// an agent can retry without parsing the hint; the hint carries the same
-	// candidates as prose. The full valid-flag list stays recoverable via --help.
+	if cmdmeta.Domain(c) == "sheets" {
+		if list := inlineVisibleFlags(valid); list != "" {
+			if len(suggestions) > 0 {
+				hint = fmt.Sprintf("did you mean %s? valid flags: %s", strings.Join(suggestions, ", "), list)
+			} else {
+				hint = "valid flags: " + list
+			}
+		}
+	}
 	return errs.NewValidationError(errs.SubtypeInvalidArgument,
-		"unknown flag %q for %q", "--"+name, c.CommandPath()).
-		WithParams(errs.InvalidParam{Name: "--" + name, Reason: "unknown flag", Suggestions: suggestions}).
-		WithHint("%s", hint)
+		"unknown flag %q for %q", rawName, c.CommandPath()).
+		WithParams(errs.InvalidParam{Name: rawName, Reason: "unknown flag", Suggestions: suggestions}).
+		WithHint("%s", hint).
+		WithCause(ferr)
 }
 
-// unknownFlagName extracts the offending long-flag name from cobra's flag-parse
-// error text ("unknown flag: --query" → "query"). Returns ok=false for anything
-// else (missing argument, invalid value, unknown shorthand) so the caller keeps
-// those structured but generic — hallucinated flags are essentially always long.
-//
-// CONTRACT: this matches cobra's English wording "unknown flag: --" (go.mod
-// pins github.com/spf13/cobra). If cobra rewords this or gains i18n the match
-// silently fails and unknown flags degrade to a generic flag_error — re-verify
-// this prefix when bumping cobra.
-func unknownFlagName(err error) (string, bool) {
-	const p = "unknown flag: --"
-	msg := err.Error()
-	i := strings.Index(msg, p)
-	if i < 0 {
-		return "", false
+func typedFlagParseError(c *cobra.Command, ferr error) error {
+	param := ""
+	reason := "flag parse error"
+	var valueRequired *pflag.ValueRequiredError
+	var invalidValue *pflag.InvalidValueError
+	var invalidSyntax *pflag.InvalidSyntaxError
+	switch {
+	case errors.As(ferr, &valueRequired):
+		param = "--" + valueRequired.GetSpecifiedName()
+		if valueRequired.GetSpecifiedShortnames() != "" {
+			param = "-" + valueRequired.GetSpecifiedName()
+		}
+		reason = "flag value is required"
+	case errors.As(ferr, &invalidValue):
+		if invalidValue.GetFlag() != nil {
+			param = "--" + invalidValue.GetFlag().Name
+		}
+		reason = "invalid flag value"
+	case errors.As(ferr, &invalidSyntax):
+		param = invalidSyntax.GetSpecifiedFlag()
+		reason = "invalid flag syntax"
 	}
-	rest := msg[i+len(p):]
-	if j := strings.IndexAny(rest, " \t"); j >= 0 {
-		rest = rest[:j]
+	validationErr := errs.NewValidationError(errs.SubtypeInvalidArgument, "%s", ferr.Error()).
+		WithHint("run `%s --help` for valid flags", c.CommandPath()).
+		WithCause(ferr)
+	if param != "" {
+		validationErr.WithParams(errs.InvalidParam{Name: param, Reason: reason})
 	}
-	return rest, true
+	return validationErr
+}
+
+func inlineVisibleFlags(names []string) string {
+	const limit = 25
+	if len(names) == 0 {
+		return ""
+	}
+	shown := names
+	suffix := ""
+	if len(shown) > limit {
+		shown = shown[:limit]
+		suffix = fmt.Sprintf(", ... (%d more; see --help)", len(names)-limit)
+	}
+	flags := make([]string, len(shown))
+	for i, name := range shown {
+		flags[i] = "--" + name
+	}
+	return strings.Join(flags, ", ") + suffix
 }
 
 // visibleFlagNames lists the non-hidden flag names of c (for suggestions and

cmd/root_test.go

@@ -6,6 +6,7 @@ package cmd
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"strings"
@@ -284,9 +285,9 @@ func TestHandleRootError_DeprecatedAliasMissingFlagStructured(t *testing.T) {
 	deprecation.SetPending(&deprecation.Notice{
 		Command: "+write", Replacement: "+cells-set", Skill: "lark-sheets",
 	})
-	// The bare error shape cobra's ValidateRequiredFlags produces: not a typed
-	// errs.* error, so it reaches the deprecation fallback.
-	exit := handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
+	err := errs.NewValidationError(errs.SubtypeInvalidArgument, `required flag(s) %q not set`, "values").
+		WithParam("--values")
+	exit := handleRootError(f, err)
 
 	out := errOut.String()
 	if strings.HasPrefix(strings.TrimSpace(out), "Error:") {
@@ -381,10 +382,9 @@ func decodeErrorEnvelope(t *testing.T, raw []byte) map[string]any {
 	return errObj
 }
 
-// TestHandleRootError_NoDeprecationTypesUsageError pins that a residual cobra
-// usage error (missing required flag) is typed as invalid_argument with exit 2
-// even with no deprecation pending — never cobra's plain "Error:" line.
-func TestHandleRootError_NoDeprecationTypesUsageError(t *testing.T) {
+// TestCobraValidationGuardTypesRequiredFlag pins that required-flag errors are
+// typed at the Cobra validation stage, before the final dispatcher.
+func TestCobraValidationGuardTypesRequiredFlag(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
 	t.Cleanup(func() { deprecation.SetPending(nil) })
 	deprecation.SetPending(nil)
@@ -393,7 +393,15 @@ func TestHandleRootError_NoDeprecationTypesUsageError(t *testing.T) {
 	errOut := &bytes.Buffer{}
 	f.IOStreams.ErrOut = errOut
 
-	exit := handleRootError(f, fmt.Errorf(`required flag(s) %q not set`, "values"))
+	cmd := &cobra.Command{Use: "demo", RunE: func(*cobra.Command, []string) error { return nil }}
+	cmd.Flags().String("values", "", "")
+	cmd.MarkFlagRequired("values")
+	installCobraValidationGuards(cmd)
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected missing required flag error")
+	}
+	exit := handleRootError(f, err)
 
 	out := errOut.String()
 	if strings.HasPrefix(strings.TrimSpace(out), "Error:") {
@@ -411,6 +419,93 @@ func TestHandleRootError_NoDeprecationTypesUsageError(t *testing.T) {
 	}
 }
 
+func TestCobraValidationGuardTypesFlagGroupErrorsWithParams(t *testing.T) {
+	tests := []struct {
+		name       string
+		mark       func(*cobra.Command)
+		args       []string
+		wantNames  []string
+		wantReason string
+	}{
+		{
+			name: "one required",
+			mark: func(cmd *cobra.Command) {
+				cmd.MarkFlagsOneRequired("start-cell", "range")
+			},
+			wantNames:  []string{"--start-cell", "--range"},
+			wantReason: "one of [--start-cell --range] required",
+		},
+		{
+			name: "required together",
+			mark: func(cmd *cobra.Command) {
+				cmd.MarkFlagsRequiredTogether("start-cell", "range")
+			},
+			args:       []string{"--start-cell", "A1"},
+			wantNames:  []string{"--start-cell", "--range"},
+			wantReason: "all of [--start-cell --range] required together",
+		},
+		{
+			name: "mutually exclusive",
+			mark: func(cmd *cobra.Command) {
+				cmd.MarkFlagsMutuallyExclusive("start-cell", "range")
+			},
+			args:       []string{"--start-cell", "A1", "--range", "B2"},
+			wantNames:  []string{"--start-cell", "--range"},
+			wantReason: "only one of [--start-cell --range] allowed",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			cmd := &cobra.Command{Use: "demo", RunE: func(*cobra.Command, []string) error { return nil }}
+			cmd.Flags().String("start-cell", "", "")
+			cmd.Flags().String("range", "", "")
+			tt.mark(cmd)
+			installCobraValidationGuards(cmd)
+			cmd.SetArgs(tt.args)
+
+			err := cmd.Execute()
+			if err == nil {
+				t.Fatal("expected flag group error")
+			}
+			problem, ok := errs.ProblemOf(err)
+			if !ok {
+				t.Fatalf("expected typed problem, got %T: %v", err, err)
+			}
+			if problem.Category != errs.CategoryValidation || problem.Subtype != errs.SubtypeInvalidArgument {
+				t.Fatalf("problem = %s/%s, want validation/invalid_argument", problem.Category, problem.Subtype)
+			}
+			if got := output.ExitCodeOf(err); got != output.ExitValidation {
+				t.Fatalf("exit code = %d, want %d", got, output.ExitValidation)
+			}
+			var validationErr *errs.ValidationError
+			if !errors.As(err, &validationErr) {
+				t.Fatalf("expected *errs.ValidationError, got %T", err)
+			}
+			if len(validationErr.Params) != len(tt.wantNames) {
+				t.Fatalf("params = %v, want %d entries", validationErr.Params, len(tt.wantNames))
+			}
+			for i, wantName := range tt.wantNames {
+				if validationErr.Params[i].Name != wantName || validationErr.Params[i].Reason != tt.wantReason {
+					t.Errorf("params[%d] = %+v, want name=%q reason=%q", i, validationErr.Params[i], wantName, tt.wantReason)
+				}
+			}
+		})
+	}
+}
+
+func TestInvalidFlagGroupParamsFromMessage(t *testing.T) {
+	got := invalidFlagGroupParams("at least one of the flags in the group [start-cell range] is required")
+	if len(got) != 2 {
+		t.Fatalf("params = %v, want two entries", got)
+	}
+	for i, want := range []string{"--start-cell", "--range"} {
+		if got[i].Name != want || got[i].Reason != "one of [--start-cell --range] required" {
+			t.Errorf("params[%d] = %+v", i, got[i])
+		}
+	}
+}
+
 // TestHandleRootError_LeakedUntypedErrorBecomesInternal pins that an untyped
 // error that does NOT match a cobra usage shape (i.e. one that leaked past the
 // typed boundary from a helper) is classified as an internal fault (exit 5),

cmd/service/service.go

@@ -140,6 +140,7 @@ type ServiceMethodOptions struct {
 	PageLimit  int
 	PageDelay  int
 	Format     string
+	JSON       bool
 	JqExpr     string
 	DryRun     bool
 	File       string   // --file flag value
@@ -268,6 +269,11 @@ func buildMethodCommand(ctx context.Context, f *cmdutil.Factory, spec methodComm
 			opts.Cmd = cmd
 			opts.Ctx = cmd.Context()
 			opts.As = core.Identity(asStr)
+			format, err := output.StandardFormats.Resolve(opts.Format, cmd.Flags().Changed("format"), opts.JSON)
+			if err != nil {
+				return err
+			}
+			opts.Format = format
 			if runF != nil {
 				return runF(opts)
 			}
@@ -299,8 +305,8 @@ func buildMethodCommand(ctx context.Context, f *cmdutil.Factory, spec methodComm
 			_ = cmd.Flags().MarkHidden(name)
 		}
 	}
-	cmd.Flags().StringVar(&opts.Format, "format", "json", "output format: json|ndjson|table|csv")
-	cmd.Flags().Bool("json", false, "shorthand for --format json")
+	cmd.Flags().StringVar(&opts.Format, "format", "json", output.StandardFormats.Usage())
+	cmd.Flags().BoolVar(&opts.JSON, "json", false, "shorthand for --format json")
 	cmd.Flags().StringVarP(&opts.JqExpr, "jq", "q", "", "jq expression to filter JSON output")
 	cmd.Flags().BoolVar(&opts.DryRun, "dry-run", false, "print request without executing")
 	if spec.risk == cmdutil.RiskHighRiskWrite {
@@ -311,7 +317,7 @@ func buildMethodCommand(ctx context.Context, f *cmdutil.Factory, spec methodComm
 		cmd.Flags().StringVar(&opts.File, "file", "", "File upload [field=]path. Supports - and stdin.")
 	}
 	cmdutil.RegisterFlagCompletion(cmd, "format", func(_ *cobra.Command, _ []string, _ string) ([]string, cobra.ShellCompDirective) {
-		return []string{"json", "ndjson", "table", "csv"}, cobra.ShellCompDirectiveNoFileComp
+		return output.StandardFormats.Names(), cobra.ShellCompDirectiveNoFileComp
 	})
 
 	// Registered last so the collision guard sees the standard flags above.
@@ -403,9 +409,9 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 
 	if opts.DryRun {
 		if fileMeta != nil {
-			return cmdutil.PrintDryRunWithFile(f.IOStreams.Out, request, config, opts.Format, fileMeta.FieldName, fileMeta.FilePath, fileMeta.FormFields)
+			return cmdutil.PrintDryRunWithFile(request, config, serviceDryRunOutputOptions(f, opts), *fileMeta)
 		}
-		return serviceDryRun(f, request, config, opts.Format)
+		return serviceDryRun(f, request, config, opts)
 	}
 
 	if opts.Method.Risk == cmdutil.RiskHighRiskWrite {
@@ -420,10 +426,7 @@ func serviceMethodRun(opts *ServiceMethodOptions) error {
 	}
 
 	out := f.IOStreams.Out
-	format, formatOK := output.ParseFormat(opts.Format)
-	if !formatOK {
-		fmt.Fprintf(f.IOStreams.ErrOut, "warning: unknown format %q, falling back to json\n", opts.Format)
-	}
+	format, _ := output.ParseFormat(opts.Format)
 
 	// Scope-insufficient (99991679) and all other Lark API codes route through
 	// errclass.BuildAPIError via ac.CheckResponse, producing *errs.PermissionError
@@ -667,8 +670,19 @@ func buildServiceRequest(opts *ServiceMethodOptions) (client.RawApiRequest, *cmd
 	return request, nil, nil
 }
 
-func serviceDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, format string) error {
-	return cmdutil.PrintDryRun(f.IOStreams.Out, request, config, format)
+func serviceDryRun(f *cmdutil.Factory, request client.RawApiRequest, config *core.CliConfig, opts *ServiceMethodOptions) error {
+	return cmdutil.PrintDryRun(request, config, serviceDryRunOutputOptions(f, opts))
+}
+
+func serviceDryRunOutputOptions(f *cmdutil.Factory, opts *ServiceMethodOptions) cmdutil.DryRunOutputOptions {
+	return cmdutil.DryRunOutputOptions{
+		Format:      opts.Format,
+		JqExpr:      opts.JqExpr,
+		CommandPath: opts.Cmd.CommandPath(),
+		Identity:    opts.As,
+		Out:         f.IOStreams.Out,
+		ErrOut:      f.IOStreams.ErrOut,
+	}
 }
 
 func servicePaginate(ctx context.Context, ac *client.APIClient, request client.RawApiRequest, format output.Format, jqExpr string, out, errOut io.Writer, commandPath string, pagOpts client.PaginationOptions, checkErr func(interface{}, core.Identity) error) error {
@@ -695,6 +709,24 @@ func servicePaginate(ctx context.Context, ac *client.APIClient, request client.R
 	}
 
 	switch format {
+	case output.FormatPretty:
+		result, err := ac.PaginateAll(ctx, request, pagOpts)
+		if err != nil {
+			return err
+		}
+		if apiErr := checkErr(result, pagOpts.Identity); apiErr != nil {
+			output.FormatValue(out, result, output.FormatPretty)
+			return apiErr
+		}
+		scanResult := output.ScanForSafety(commandPath, result, errOut)
+		if scanResult.Blocked {
+			return scanResult.BlockErr
+		}
+		if scanResult.Alert != nil {
+			output.WriteAlertWarning(errOut, scanResult.Alert)
+		}
+		output.FormatValue(out, result, output.FormatPretty)
+		return nil
 	case output.FormatNDJSON, output.FormatTable, output.FormatCSV:
 		pf := output.NewPaginatedFormatter(out, format)
 		result, hasItems, err := ac.StreamPages(ctx, request, func(items []interface{}) error {

cmd/service/service_test.go

@@ -201,6 +201,42 @@ func TestNewCmdServiceMethod_RunFCallback(t *testing.T) {
 	}
 }
 
+func TestServiceMethod_OutputFormatResolution(t *testing.T) {
+	tests := []struct {
+		name string
+		args []string
+		want string
+	}{
+		{name: "json shorthand", args: []string{"--json"}, want: "json"},
+		{name: "explicit format wins", args: []string{"--format", "table", "--json"}, want: "table"},
+		{name: "pretty format", args: []string{"--format", "PRETTY"}, want: "pretty"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			f, _, _, _ := cmdutil.TestFactory(t, testConfig)
+			var captured *ServiceMethodOptions
+			cmd := NewCmdServiceMethod(f, driveSpec(),
+				meta.FromMap(map[string]interface{}{"description": "desc", "httpMethod": "GET"}), "list", "files",
+				func(opts *ServiceMethodOptions) error {
+					captured = opts
+					return nil
+				})
+			args := []string{"--as", "bot"}
+			cmd.SetArgs(append(args, tt.args...))
+			if err := cmd.Execute(); err != nil {
+				t.Fatalf("unexpected error: %v", err)
+			}
+			if captured == nil {
+				t.Fatal("expected options to be captured")
+			}
+			if captured.Format != tt.want {
+				t.Fatalf("format = %q, want %q", captured.Format, tt.want)
+			}
+		})
+	}
+}
+
 // ── dry-run / buildServiceRequest ──
 
 func TestServiceMethod_DryRun_PathParam(t *testing.T) {
@@ -224,13 +260,39 @@ func TestServiceMethod_DryRun_PathParam(t *testing.T) {
 			if err := cmd.Execute(); err != nil {
 				t.Fatalf("unexpected error: %v", err)
 			}
-			if !strings.Contains(stdout.String(), tt.wantInURL) {
-				t.Errorf("expected URL containing %q, got:\n%s", tt.wantInURL, stdout.String())
+			var got map[string]interface{}
+			if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+				t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, stdout.String())
+			}
+			if got["ok"] != true || got["dry_run"] != true {
+				t.Fatalf("unexpected dry-run envelope: %#v", got)
+			}
+			data := got["data"].(map[string]interface{})
+			api := data["api"].([]interface{})
+			call := api[0].(map[string]interface{})
+			if call["url"] != tt.wantInURL {
+				t.Errorf("url = %q, want %q\nstdout:\n%s", call["url"], tt.wantInURL, stdout.String())
 			}
 		})
 	}
 }
 
+func TestServiceMethod_DryRunWithJq(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, testConfig)
+	cmd := NewCmdServiceMethod(f, driveSpec(), driveMethod("GET", nil), "get", "files", nil)
+	cmd.SetArgs([]string{
+		"--params", `{"file_token":"boxcn123abc"}`,
+		"--dry-run",
+		"--jq", ".data.api[0].url",
+	})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if got, want := strings.TrimSpace(stdout.String()), "/open-apis/drive/v1/files/boxcn123abc/copy"; got != want {
+		t.Fatalf("jq output = %q, want %q", got, want)
+	}
+}
+
 func TestServiceMethod_PathParamRejectsTraversal(t *testing.T) {
 	tests := []struct {
 		name      string
@@ -318,8 +380,12 @@ func TestServiceMethod_PaginationParamSkippedWithPageAll(t *testing.T) {
 	if err != nil {
 		t.Fatalf("expected no error with --page-all skipping page_size, got: %v", err)
 	}
-	if !strings.Contains(stdout.String(), "Dry Run") {
-		t.Error("expected dry-run output")
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, stdout.String())
+	}
+	if got["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", got["dry_run"])
 	}
 }
 
@@ -432,6 +498,43 @@ func TestServiceMethod_BotMode_Success(t *testing.T) {
 	}
 }
 
+func TestServiceMethod_PrettyFormatsRealResponse(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, testConfig)
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"items": []interface{}{map[string]interface{}{"name": "Alice"}},
+			},
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
+	cmd.SetArgs([]string{"--as", "bot", "--format", "pretty"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stdout.String()
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("pretty output should be valid JSON: %v\n%s", err, out)
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("pretty output data = %#v", got["data"])
+	}
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("pretty output data.items = %#v", data["items"])
+	}
+	if !strings.Contains(out, "\n  \"data\": {") || strings.Contains(out, "─") {
+		t.Fatalf("pretty output should be indented JSON rather than a table, got:\n%s", out)
+	}
+}
+
 func TestServiceMethod_BotMode_PageAll_JSON(t *testing.T) {
 	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app-page", AppSecret: "test-secret-page", Brand: core.BrandFeishu,
@@ -473,6 +576,48 @@ func TestServiceMethod_BotMode_PageAll_JSON(t *testing.T) {
 	}
 }
 
+func TestServiceMethod_PageAll_PrettyAggregatesIndentedJSON(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, &core.CliConfig{
+		AppID: "test-app-service-pageall-pretty", AppSecret: "test-secret", Brand: core.BrandFeishu,
+	})
+
+	reg.Register(&httpmock.Stub{
+		URL: "/open-apis/svc/v1/items",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "ok",
+			"data": map[string]interface{}{
+				"items":    []interface{}{map[string]interface{}{"id": "1"}},
+				"has_more": false,
+			},
+		},
+	})
+
+	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
+	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
+	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
+	cmd.SetArgs([]string{"--as", "bot", "--page-all", "--format", "pretty"})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+
+	out := stdout.String()
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("page-all pretty output should be valid JSON: %v\n%s", err, out)
+	}
+	data, ok := got["data"].(map[string]interface{})
+	if !ok {
+		t.Fatalf("page-all pretty output data = %#v", got["data"])
+	}
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 1 {
+		t.Fatalf("page-all pretty output data.items = %#v", data["items"])
+	}
+	if !strings.Contains(out, "\n  \"data\": {") || strings.Contains(out, "─") {
+		t.Fatalf("page-all pretty output should be aggregated indented JSON, got:\n%s", out)
+	}
+}
+
 type serviceContentSafetyProvider struct {
 	called bool
 	path   string
@@ -765,26 +910,23 @@ func TestServiceMethod_PageAll_StreamBusinessErrorDoesNotDumpJSON(t *testing.T)
 	}
 }
 
-func TestServiceMethod_UnknownFormat_Warning(t *testing.T) {
-	f, _, stderr, reg := cmdutil.TestFactory(t, &core.CliConfig{
+func TestServiceMethod_UnknownFormat_ReturnsValidationError(t *testing.T) {
+	f, _, _, _ := cmdutil.TestFactory(t, &core.CliConfig{
 		AppID: "test-app-fmt", AppSecret: "test-secret-fmt", Brand: core.BrandFeishu,
 	})
 
-	reg.Register(&httpmock.Stub{
-		URL:  "/open-apis/svc/v1/items",
-		Body: map[string]interface{}{"code": 0, "msg": "ok", "data": map[string]interface{}{}},
-	})
-
 	spec := meta.ServiceFromMap(map[string]interface{}{"name": "svc", "servicePath": "/open-apis/svc/v1"})
 	method := meta.FromMap(map[string]interface{}{"path": "items", "httpMethod": "GET", "parameters": map[string]interface{}{}})
 	cmd := NewCmdServiceMethod(f, spec, method, "list", "items", nil)
 	cmd.SetArgs([]string{"--as", "bot", "--format", "unknown"})
 
-	if err := cmd.Execute(); err != nil {
-		t.Fatalf("unexpected error: %v", err)
+	err := cmd.Execute()
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
 	}
-	if !strings.Contains(stderr.String(), "warning: unknown format") {
-		t.Errorf("expected format warning in stderr, got:\n%s", stderr.String())
+	if validationErr.Param != "--format" {
+		t.Errorf("param = %q, want --format", validationErr.Param)
 	}
 }
 
@@ -1081,11 +1223,23 @@ func TestServiceMethod_FileUpload_DryRun(t *testing.T) {
 		t.Fatalf("unexpected error: %v", err)
 	}
 	out := stdout.String()
-	if !strings.Contains(out, "image") {
-		t.Errorf("expected dry-run output to mention file field, got: %s", out)
+	var env map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
+		t.Fatalf("dry-run stdout is not JSON: %v\n%s", err, out)
 	}
-	if !strings.Contains(out, "Dry Run") {
-		t.Errorf("expected dry-run header, got: %s", out)
+	if env["dry_run"] != true {
+		t.Fatalf("dry_run = %#v, want true", env["dry_run"])
+	}
+	data := env["data"].(map[string]interface{})
+	api := data["api"].([]interface{})
+	call := api[0].(map[string]interface{})
+	body := call["body"].(map[string]interface{})
+	file := body["file"].(map[string]interface{})
+	if file["field"] != "image" || file["path"] != tmpFile {
+		t.Fatalf("unexpected file dry-run body: %#v", body)
+	}
+	if strings.Contains(out, "=== Dry Run ===") {
+		t.Fatalf("stdout should not contain dry-run banner: %s", out)
 	}
 }
 

cmd/startup_brand.go

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

cmd/startup_brand_test.go

@@ -0,0 +1,87 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package cmd
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"os/exec"
+	"path/filepath"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/registry"
+)
+
+func TestResolveStartupBrand_Precedence(t *testing.T) {
+	tmp := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", tmp)
+	t.Setenv("LARKSUITE_CLI_BRAND", "")
+	os.Unsetenv("LARKSUITE_CLI_BRAND")
+
+	// No config at all → default brand.
+	if got := ResolveStartupBrand(""); got != core.BrandFeishu {
+		t.Errorf("empty state brand = %q, want feishu", got)
+	}
+
+	// Raw config supplies the active profile's brand — no keychain involved.
+	raw := `{"currentApp":"feishu-app","apps":[` +
+		`{"name":"feishu-app","appId":"cli_f","appSecret":"test-secret","brand":"feishu","users":[]},` +
+		`{"name":"lark-prof","appId":"cli_l","appSecret":"test-secret","brand":"LARK","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+	if got := ResolveStartupBrand(""); got != core.BrandFeishu {
+		t.Errorf("default profile brand = %q, want feishu", got)
+	}
+	if got := ResolveStartupBrand("lark-prof"); got != core.BrandLark {
+		t.Errorf("lark profile brand = %q, want lark (normalized)", got)
+	}
+
+	// Environment wins over the config file.
+	t.Setenv("LARKSUITE_CLI_BRAND", "lark")
+	if got := ResolveStartupBrand(""); got != core.BrandLark {
+		t.Errorf("env brand = %q, want lark", got)
+	}
+}
+
+// TestStartupBrandReachesRegistry_RealStartupOrder proves the fix for the
+// production startup sequence: building the command tree locks the registry's
+// sync.Once, so the brand must be injected before the first catalog access.
+// It runs in a subprocess because the registry is process-global.
+func TestStartupBrandReachesRegistry_RealStartupOrder(t *testing.T) {
+	if os.Getenv("GO_TEST_STARTUP_BRAND_HELPER") == "1" {
+		// Helper: replicate Execute()'s build wiring with a lark config.
+		buildInternal(
+			context.Background(), cmdutil.InvocationContext{},
+			WithIO(strings.NewReader(""), os.Stdout, os.Stderr),
+			WithStartupBrand(ResolveStartupBrand("")),
+		)
+		fmt.Printf("CONFIGURED_BRAND=%s\n", registry.ConfiguredBrand())
+		os.Exit(0)
+	}
+
+	tmp := t.TempDir()
+	raw := `{"apps":[{"appId":"cli_l","appSecret":"test-secret","brand":"lark","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+
+	cmd := exec.Command(os.Args[0], "-test.run", "TestStartupBrandReachesRegistry_RealStartupOrder")
+	cmd.Env = append(os.Environ(),
+		"GO_TEST_STARTUP_BRAND_HELPER=1",
+		"LARKSUITE_CLI_CONFIG_DIR="+tmp,
+		"LARKSUITE_CLI_REMOTE_META=off", // no network during the subprocess build
+	)
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		t.Fatalf("subprocess failed: %v\n%s", err, out)
+	}
+	if !strings.Contains(string(out), "CONFIGURED_BRAND=lark") {
+		t.Errorf("registry brand after real startup order = %s, want lark", out)
+	}
+}

cmd/unknown_subcommand_test.go

@@ -45,11 +45,38 @@ func TestInstallUnknownSubcommandGuard_InstallsOnGroupsOnly(t *testing.T) {
 	if files.RunE == nil {
 		t.Error("files should have RunE installed")
 	}
+	if root.Args == nil {
+		t.Error("root should explicitly accept positional tokens so unknown commands reach RunE")
+	}
 	if err := leaf.RunE(leaf, []string{"unexpected-arg"}); err != nil {
 		t.Errorf("leaf +search RunE should be untouched, got error %v", err)
 	}
 }
 
+func TestTopLevelUnknownCommandReturnsStructuredSuggestion(t *testing.T) {
+	root, _, _ := newGroupTree()
+	installUnknownSubcommandGuard(root)
+	root.SetArgs([]string{"driv"})
+
+	err := root.Execute()
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) {
+		t.Fatalf("expected *errs.ValidationError, got %T: %v", err, err)
+	}
+	if len(validationErr.Params) != 1 || validationErr.Params[0].Name != "driv" {
+		t.Fatalf("params = %v, want one entry named driv", validationErr.Params)
+	}
+	found := false
+	for _, candidate := range validationErr.Params[0].Suggestions {
+		if candidate == "drive" {
+			found = true
+		}
+	}
+	if !found {
+		t.Fatalf("suggestions = %v, want drive", validationErr.Params[0].Suggestions)
+	}
+}
+
 func TestInstallUnknownSubcommandGuard_PreservesExistingRunE(t *testing.T) {
 	root := &cobra.Command{Use: "lark-cli"}
 	called := false

cmd/update/update.go

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

cmd/update/update_test.go

@@ -9,7 +9,9 @@ import (
 	"encoding/json"
 	"errors"
 	"fmt"
+	"os"
 	"os/exec"
+	"path/filepath"
 	"strings"
 	"testing"
 	"time"
@@ -1731,3 +1733,64 @@ func containsString(values []string, target string) bool {
 	}
 	return false
 }
+
+func TestResolveSkillsBrand_LayeredFallback(t *testing.T) {
+	// Layer 1: resolved config wins.
+	var errBuf bytes.Buffer
+	f := &cmdutil.Factory{Config: func() (*core.CliConfig, error) {
+		return &core.CliConfig{Brand: core.LarkBrand(" LARK ")}, nil
+	}}
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandLark {
+		t.Errorf("resolved-config brand = %q, want lark", got)
+	}
+
+	// Layer 2: credential resolution fails, raw config file still supplies the
+	// brand (a locked keychain must not flip a Lark profile to Feishu).
+	tmp := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", tmp)
+	raw := `{"apps":[{"appId":"cli_x","appSecret":"test-secret","brand":"lark","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+	f = &cmdutil.Factory{Config: func() (*core.CliConfig, error) { return nil, errors.New("keychain locked") }}
+	errBuf.Reset()
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandLark {
+		t.Errorf("raw-config brand = %q, want lark", got)
+	}
+	if errBuf.Len() != 0 {
+		t.Errorf("unexpected notice when raw config supplied the brand: %q", errBuf.String())
+	}
+
+	// Layer 3: nothing readable → default brand with a notice.
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	errBuf.Reset()
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandFeishu {
+		t.Errorf("fallback brand = %q, want feishu", got)
+	}
+	if !strings.Contains(errBuf.String(), "could not resolve the configured brand") {
+		t.Errorf("expected fallback notice, got %q", errBuf.String())
+	}
+}
+
+// The raw-config fallback must read the active profile, not the default one.
+func TestResolveSkillsBrand_RespectsActiveProfile(t *testing.T) {
+	tmp := t.TempDir()
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", tmp)
+	raw := `{"currentApp":"feishu-app","apps":[` +
+		`{"name":"feishu-app","appId":"cli_f","appSecret":"test-secret","brand":"feishu","users":[]},` +
+		`{"name":"lark-prof","appId":"cli_l","appSecret":"test-secret","brand":"lark","users":[]}]}`
+	if err := os.WriteFile(filepath.Join(tmp, "config.json"), []byte(raw), 0600); err != nil {
+		t.Fatal(err)
+	}
+	f := &cmdutil.Factory{
+		Invocation: cmdutil.InvocationContext{Profile: "lark-prof"},
+		Config:     func() (*core.CliConfig, error) { return nil, errors.New("keychain locked") },
+	}
+	var errBuf bytes.Buffer
+	if got := resolveSkillsBrand(f, &errBuf); got != core.BrandLark {
+		t.Errorf("brand = %q, want lark (the active profile's brand)", got)
+	}
+	if errBuf.Len() != 0 {
+		t.Errorf("unexpected notice: %q", errBuf.String())
+	}
+}

events/im/message_receive.go

@@ -13,17 +13,29 @@ import (
 
 // ImMessageReceiveOutput is the flattened shape for im.message.receive_v1; `desc` tags drive the reflected schema.
 type ImMessageReceiveOutput struct {
-	Type        string `json:"type"                   desc:"Event type; always im.message.receive_v1"`
-	EventID     string `json:"event_id,omitempty"     desc:"Globally unique event ID; safe for deduplication"`
-	Timestamp   string `json:"timestamp,omitempty"    desc:"Event delivery time (ms timestamp string); prefers header.create_time"                                                                                                              kind:"timestamp_ms"`
-	ID          string `json:"id,omitempty"           desc:"Message ID (legacy alias of message_id, kept for compatibility)"                                                                                                                     kind:"message_id"`
-	MessageID   string `json:"message_id,omitempty"   desc:"Message ID; prefixed with om_"                                                                                                                                                       kind:"message_id"`
-	CreateTime  string `json:"create_time,omitempty"  desc:"Message creation time (ms timestamp string)"                                                                                                                                         kind:"timestamp_ms"`
-	ChatID      string `json:"chat_id,omitempty"      desc:"Chat/conversation ID; prefixed with oc_"                                                                                                                                             kind:"chat_id"`
-	ChatType    string `json:"chat_type,omitempty"    desc:"Conversation type"                                                                                                                                                                   enum:"p2p,group"`
-	MessageType string `json:"message_type,omitempty" desc:"Message type"`
-	SenderID    string `json:"sender_id,omitempty"    desc:"Sender open_id; prefixed with ou_"                                                                                                                                                   kind:"open_id"`
-	Content     string `json:"content,omitempty"      desc:"Message content. For most types (text/post/image/file/audio, etc.) this is pre-rendered human-readable text."`
+	Type        string          `json:"type"                   desc:"Event type; always im.message.receive_v1"`
+	EventID     string          `json:"event_id,omitempty"     desc:"Event delivery ID. Do not use as the message deduplication key; use message_id instead."`
+	Timestamp   string          `json:"timestamp,omitempty"    desc:"Event delivery time (ms timestamp string); prefers header.create_time"                                                                                                              kind:"timestamp_ms"`
+	ID          string          `json:"id,omitempty"           desc:"Message ID (legacy alias of message_id, kept for compatibility)"                                                                                                                     kind:"message_id"`
+	MessageID   string          `json:"message_id,omitempty"   desc:"Message ID; prefixed with om_. Recommended idempotency key for im.message.receive_v1 consumers."                                                                                     kind:"message_id"`
+	CreateTime  string          `json:"create_time,omitempty"  desc:"Message creation time (ms timestamp string)"                                                                                                                                         kind:"timestamp_ms"`
+	UpdateTime  string          `json:"update_time,omitempty"  desc:"Message update time (ms timestamp string); emitted only when different from create_time"                                                                                              kind:"timestamp_ms"`
+	ChatID      string          `json:"chat_id,omitempty"      desc:"Chat/conversation ID; prefixed with oc_"                                                                                                                                             kind:"chat_id"`
+	ChatType    string          `json:"chat_type,omitempty"    desc:"Conversation type"                                                                                                                                                                   enum:"p2p,group"`
+	MessageType string          `json:"message_type,omitempty" desc:"Message type"`
+	SenderID    string          `json:"sender_id,omitempty"    desc:"Sender open_id; prefixed with ou_"                                                                                                                                                   kind:"open_id"`
+	SenderType  string          `json:"sender_type,omitempty"  desc:"Sender type"                                                                                                                                                                         enum:"user,bot"`
+	RootID      string          `json:"root_id,omitempty"      desc:"Root message ID of the reply/thread context, when present"                                                                                                                           kind:"message_id"`
+	ThreadID    string          `json:"thread_id,omitempty"    desc:"Thread ID, when present"`
+	ReplyTo     string          `json:"reply_to,omitempty"     desc:"Parent message ID of the direct reply context, when present"                                                                                                                         kind:"message_id"`
+	Content     string          `json:"content,omitempty"      desc:"Message content. For most types (text/post/image/file/audio, etc.) this is pre-rendered human-readable text."`
+	Mentions    []MentionOutput `json:"mentions,omitempty" desc:"Compact mentions aligned with im +messages-mget"`
+}
+
+type MentionOutput struct {
+	Key  string `json:"key,omitempty"  desc:"Mention placeholder key, for example @_user_1"`
+	ID   string `json:"id,omitempty"   desc:"Mentioned user open_id; prefixed with ou_"        kind:"open_id"`
+	Name string `json:"name,omitempty" desc:"Mentioned display name"`
 }
 
 func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.RawEvent, _ map[string]string) (json.RawMessage, error) {
@@ -36,15 +48,20 @@ func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.Ra
 		Event struct {
 			Message struct {
 				MessageID   string        `json:"message_id"`
+				RootID      string        `json:"root_id"`
+				ParentID    string        `json:"parent_id"`
+				ThreadID    string        `json:"thread_id"`
 				ChatID      string        `json:"chat_id"`
 				ChatType    string        `json:"chat_type"`
 				MessageType string        `json:"message_type"`
 				Content     string        `json:"content"`
 				CreateTime  string        `json:"create_time"`
+				UpdateTime  string        `json:"update_time"`
 				Mentions    []interface{} `json:"mentions"`
 			} `json:"message"`
 			Sender struct {
-				SenderID struct {
+				SenderType string `json:"sender_type"`
+				SenderID   struct {
 					OpenID string `json:"open_id"`
 				} `json:"sender_id"`
 			} `json:"sender"`
@@ -81,7 +98,54 @@ func processImMessageReceive(_ context.Context, _ event.APIClient, raw *event.Ra
 		ChatType:    msg.ChatType,
 		MessageType: msg.MessageType,
 		SenderID:    envelope.Event.Sender.SenderID.OpenID,
+		SenderType:  envelope.Event.Sender.SenderType,
+		RootID:      msg.RootID,
+		ThreadID:    msg.ThreadID,
+		ReplyTo:     msg.ParentID,
 		Content:     content,
+		Mentions:    compactMentions(msg.Mentions),
+	}
+	if msg.UpdateTime != "" && msg.UpdateTime != msg.CreateTime {
+		out.UpdateTime = msg.UpdateTime
 	}
 	return json.Marshal(out)
 }
+
+func compactMentions(mentions []interface{}) []MentionOutput {
+	if len(mentions) == 0 {
+		return nil
+	}
+	out := make([]MentionOutput, 0, len(mentions))
+	for _, raw := range mentions {
+		item, _ := raw.(map[string]interface{})
+		mention := MentionOutput{
+			Key:  stringField(item, "key"),
+			ID:   mentionOpenID(item["id"]),
+			Name: stringField(item, "name"),
+		}
+		if mention.Key != "" || mention.ID != "" || mention.Name != "" {
+			out = append(out, mention)
+		}
+	}
+	if len(out) == 0 {
+		return nil
+	}
+	return out
+}
+
+func stringField(m map[string]interface{}, key string) string {
+	v, _ := m[key].(string)
+	return v
+}
+
+func mentionOpenID(raw interface{}) string {
+	switch v := raw.(type) {
+	case map[string]interface{}:
+		openID, _ := v["open_id"].(string)
+		return openID
+	case string:
+		return v
+	default:
+		return ""
+	}
+}

events/im/message_receive_test.go

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

extension/credential/env/env.go

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

extension/credential/env/env_test.go

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

extension/credential/sidecar/provider.go

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

extension/credential/sidecar/provider_test.go

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

go.mod

@@ -14,7 +14,7 @@ require (
 	github.com/sergi/go-diff v1.4.0
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/smartystreets/goconvey v1.8.1
-	github.com/spf13/cobra v1.10.2 // flag-error-text contract: see cmd/root.go unknownFlagName
+	github.com/spf13/cobra v1.10.2 // typed flag errors are classified in cmd/root.go
 	github.com/spf13/pflag v1.0.9
 	github.com/stretchr/testify v1.11.1
 	github.com/tidwall/gjson v1.18.0

internal/auth/app_registration.go

@@ -6,6 +6,7 @@ package auth
 import (
 	"context"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -16,6 +17,46 @@ import (
 	"github.com/larksuite/cli/internal/core"
 )
 
+// Terminal registration outcomes, exposed for typed classification by callers.
+var (
+	ErrRegistrationDenied   = errors.New("app registration denied by user")
+	ErrRegistrationExpired  = errors.New("device code expired, please try again")
+	ErrRegistrationTimedOut = errors.New("app registration timed out, please try again")
+)
+
+// Protocol defaults, mirroring the official SDK registration flow.
+const (
+	registrationBootstrapBrand = core.BrandFeishu
+	defaultPollIntervalSeconds = 5
+	defaultExpireInSeconds     = 600
+	beginRequestTimeout        = 30 * time.Second
+	maxPollIntervalSeconds     = 60
+)
+
+// normalizedInterval clamps a non-positive poll interval to the protocol default.
+func normalizedInterval(v int) int {
+	if v <= 0 {
+		return defaultPollIntervalSeconds
+	}
+	return v
+}
+
+// normalizedExpireIn clamps a non-positive expiry budget to the protocol default.
+func normalizedExpireIn(v int) int {
+	if v <= 0 {
+		return defaultExpireInSeconds
+	}
+	return v
+}
+
+// registrationContextError maps a done context to its terminal reason, keeping the cause.
+func registrationContextError(ctx context.Context) error {
+	if errors.Is(ctx.Err(), context.DeadlineExceeded) {
+		return fmt.Errorf("%w: %w", ErrRegistrationTimedOut, ctx.Err())
+	}
+	return fmt.Errorf("app registration cancelled: %w", ctx.Err())
+}
+
 // AppRegistrationResponse is the response from the app registration begin endpoint.
 type AppRegistrationResponse struct {
 	DeviceCode              string
@@ -39,15 +80,24 @@ type AppRegUserInfo struct {
 	TenantBrand string // "feishu" or "lark"
 }
 
-// RequestAppRegistration initiates the app registration device flow.
-func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOut io.Writer) (*AppRegistrationResponse, error) {
+// appRegistrationEndpoint returns the brand's accounts registration endpoint.
+func appRegistrationEndpoint(brand core.LarkBrand) string {
+	return core.ResolveEndpoints(brand).Accounts + PathAppRegistration
+}
+
+// RequestAppRegistration initiates the device flow. The registration protocol
+// always bootstraps on Feishu; brand selects the user-facing verification host.
+// The request is bounded by ctx and a begin timeout.
+func RequestAppRegistration(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, errOut io.Writer) (*AppRegistrationResponse, error) {
 	if errOut == nil {
 		errOut = io.Discard
 	}
 
+	ctx, cancel := context.WithTimeout(ctx, beginRequestTimeout)
+	defer cancel()
+
 	ep := core.ResolveEndpoints(brand)
-	regEp := core.ResolveEndpoints(core.BrandFeishu) // registration begin always uses feishu
-	endpoint := regEp.Accounts + PathAppRegistration
+	endpoint := appRegistrationEndpoint(registrationBootstrapBrand)
 
 	form := url.Values{}
 	form.Set("action", "begin")
@@ -55,7 +105,7 @@ func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOu
 	form.Set("auth_method", "client_secret")
 	form.Set("request_user_info", "open_id tenant_brand")
 
-	req, err := http.NewRequest("POST", endpoint, strings.NewReader(form.Encode()))
+	req, err := http.NewRequestWithContext(ctx, "POST", endpoint, strings.NewReader(form.Encode()))
 	if err != nil {
 		return nil, err
 	}
@@ -70,7 +120,7 @@ func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOu
 
 	body, err := io.ReadAll(resp.Body)
 	if err != nil {
-		return nil, fmt.Errorf("app registration failed: read body: %v", err)
+		return nil, fmt.Errorf("app registration failed: read body: %w", err)
 	}
 
 	var data map[string]interface{}
@@ -90,15 +140,26 @@ func RequestAppRegistration(httpClient *http.Client, brand core.LarkBrand, errOu
 		return nil, fmt.Errorf("app registration failed: %s", msg)
 	}
 
-	expiresIn := getInt(data, "expires_in", 300)
-	interval := getInt(data, "interval", 5)
+	// The protocol field is expire_in; accept the legacy expires_in spelling,
+	// then normalize to protocol defaults.
+	expiresIn := getInt(data, "expire_in", 0)
+	if expiresIn <= 0 {
+		expiresIn = getInt(data, "expires_in", 0)
+	}
+	expiresIn = normalizedExpireIn(expiresIn)
+	interval := normalizedInterval(getInt(data, "interval", 0))
+
+	deviceCode := getStr(data, "device_code")
+	if deviceCode == "" {
+		return nil, fmt.Errorf("app registration failed: response missing device_code")
+	}
 
 	userCode := getStr(data, "user_code")
 	verificationUri := getStr(data, "verification_uri")
 	verificationUriComplete := fmt.Sprintf("%s/page/cli?user_code=%s", ep.Open, userCode)
 
 	return &AppRegistrationResponse{
-		DeviceCode:              getStr(data, "device_code"),
+		DeviceCode:              deviceCode,
 		UserCode:                getStr(data, "user_code"),
 		VerificationUri:         verificationUri,
 		VerificationUriComplete: verificationUriComplete,
@@ -118,72 +179,97 @@ func BuildVerificationURL(baseURL, cliVersion string) string {
 		"&from=cli"
 }
 
-// PollAppRegistration polls the app registration endpoint until the app is created or the flow times out.
-// If the result has ClientSecret == "" and UserInfo.TenantBrand == "lark", the caller should
-// retry with BrandLark to get the secret from accounts.larksuite.com.
-func PollAppRegistration(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, deviceCode string, interval, expiresIn int, errOut io.Writer) (*AppRegistrationResult, error) {
+// pollOnce performs one ctx-bound poll request and decodes the payload.
+func pollOnce(ctx context.Context, httpClient *http.Client, brand core.LarkBrand, deviceCode string) (map[string]interface{}, error) {
+	form := url.Values{}
+	form.Set("action", "poll")
+	form.Set("device_code", deviceCode)
+
+	req, err := http.NewRequestWithContext(ctx, "POST", appRegistrationEndpoint(brand), strings.NewReader(form.Encode()))
+	if err != nil {
+		return nil, fmt.Errorf("poll request: %w", err)
+	}
+	req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
+
+	resp, err := httpClient.Do(req)
+	if err != nil {
+		return nil, fmt.Errorf("poll network error: %w", err)
+	}
+	defer resp.Body.Close()
+	logHTTPResponse(resp)
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return nil, fmt.Errorf("poll read error: %w", err)
+	}
+	var data map[string]interface{}
+	if err := json.Unmarshal(body, &data); err != nil {
+		return nil, fmt.Errorf("poll parse error: %w", err)
+	}
+	return data, nil
+}
+
+// RegisterAppWithDiscovery polls for credentials, mirroring the official SDK
+// flow: the first poll and the (at most one) cross-brand switch are immediate,
+// non-error responses without complete credentials keep polling, and one
+// deadline from the begin expiry bounds all waits and in-flight requests.
+// The returned brand is the one the credentials were issued on.
+func RegisterAppWithDiscovery(ctx context.Context, httpClient *http.Client, resp *AppRegistrationResponse, errOut io.Writer) (*AppRegistrationResult, core.LarkBrand, error) {
 	if errOut == nil {
 		errOut = io.Discard
 	}
 
-	const maxPollInterval = 60
-	const maxPollAttempts = 200
+	// Interval and expiry arrive normalized from begin-response parsing
+	// (normalizedInterval floors them there); the loop trusts them as-is.
+	interval := resp.Interval
+	ctx, cancel := context.WithDeadline(ctx,
+		time.Now().Add(time.Duration(resp.ExpiresIn)*time.Second))
+	defer cancel()
 
-	ep := core.ResolveEndpoints(brand)
-	endpoint := ep.Accounts + PathAppRegistration
-	deadline := time.Now().Add(time.Duration(expiresIn) * time.Second)
-	currentInterval := interval
-	attempts := 0
+	currentBrand := registrationBootstrapBrand
+	effectiveBrand := currentBrand
+	switched := false
+	waitBeforePoll := false
 
-	for time.Now().Before(deadline) && attempts < maxPollAttempts {
-		attempts++
+	for {
+		if waitBeforePoll {
+			select {
+			case <-time.After(time.Duration(interval) * time.Second):
+			case <-ctx.Done():
+				return nil, effectiveBrand, registrationContextError(ctx)
+			}
+		}
+		waitBeforePoll = true
 		if ctx.Err() != nil {
-			return nil, fmt.Errorf("polling was cancelled")
+			return nil, effectiveBrand, registrationContextError(ctx)
 		}
 
-		select {
-		case <-time.After(time.Duration(currentInterval) * time.Second):
-		case <-ctx.Done():
-			return nil, fmt.Errorf("polling was cancelled")
-		}
-
-		form := url.Values{}
-		form.Set("action", "poll")
-		form.Set("device_code", deviceCode)
-
-		req, err := http.NewRequest("POST", endpoint, strings.NewReader(form.Encode()))
+		data, err := pollOnce(ctx, httpClient, currentBrand, resp.DeviceCode)
 		if err != nil {
-			continue
-		}
-		req.Header.Set("Content-Type", "application/x-www-form-urlencoded")
-
-		resp, err := httpClient.Do(req)
-		if err != nil {
-			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: poll network error: %v\n", err)
-			currentInterval = minInt(currentInterval+1, maxPollInterval)
-			continue
-		}
-		logHTTPResponse(resp)
-
-		body, err := io.ReadAll(resp.Body)
-		resp.Body.Close()
-		if err != nil {
-			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: poll read error: %v\n", err)
-			currentInterval = minInt(currentInterval+1, maxPollInterval)
+			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: %v\n", err)
+			interval = minInt(interval+1, maxPollIntervalSeconds)
 			continue
 		}
 
-		var data map[string]interface{}
-		if err := json.Unmarshal(body, &data); err != nil {
-			fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: poll parse error: %v\n", err)
-			currentInterval = minInt(currentInterval+1, maxPollInterval)
-			continue
+		// A cross-brand tenant report switches the polled domain (once,
+		// immediately) regardless of the accompanying status — the signal can
+		// arrive alongside authorization_pending, mirroring the official SDK.
+		if !switched {
+			if userInfoRaw, ok := data["user_info"].(map[string]interface{}); ok {
+				if tb := getStr(userInfoRaw, "tenant_brand"); tb != "" {
+					if actual := core.ParseBrand(tb); actual != currentBrand {
+						currentBrand = actual
+						effectiveBrand = actual
+						switched = true
+						waitBeforePoll = false
+						continue
+					}
+				}
+			}
 		}
 
 		errStr := getStr(data, "error")
-
-		// Success: client_id present
-		if errStr == "" && getStr(data, "client_id") != "" {
+		if errStr == "" {
 			result := &AppRegistrationResult{
 				ClientID:     getStr(data, "client_id"),
 				ClientSecret: getStr(data, "client_secret"),
@@ -194,34 +280,37 @@ func PollAppRegistration(ctx context.Context, httpClient *http.Client, brand cor
 					TenantBrand: getStr(userInfoRaw, "tenant_brand"),
 				}
 			}
-			return result, nil
+
+			if result.ClientID != "" && result.ClientSecret != "" {
+				// The issuing domain is authoritative; a contradictory final
+				// tenant report is a protocol violation, not a brand override.
+				if result.UserInfo != nil && result.UserInfo.TenantBrand != "" &&
+					core.ParseBrand(result.UserInfo.TenantBrand) != effectiveBrand {
+					return nil, effectiveBrand, fmt.Errorf("app registration returned credentials with a contradictory tenant brand %q", result.UserInfo.TenantBrand)
+				}
+				return result, effectiveBrand, nil
+			}
+			// Incomplete credentials without an error: keep polling.
+			continue
 		}
 
 		switch errStr {
 		case "authorization_pending":
 			continue
 		case "slow_down":
-			currentInterval = minInt(currentInterval+5, maxPollInterval)
-			fmt.Fprintf(errOut, "[lark-cli] app-registration: slow_down, interval increased to %ds\n", currentInterval)
+			interval = minInt(interval+5, maxPollIntervalSeconds)
+			fmt.Fprintf(errOut, "[lark-cli] app-registration: slow_down, interval increased to %ds\n", interval)
 			continue
 		case "access_denied":
-			return nil, fmt.Errorf("app registration denied by user")
+			return nil, effectiveBrand, ErrRegistrationDenied
 		case "expired_token", "invalid_grant":
-			return nil, fmt.Errorf("device code expired, please try again")
+			return nil, effectiveBrand, ErrRegistrationExpired
 		}
 
 		desc := getStr(data, "error_description")
 		if desc == "" {
 			desc = errStr
 		}
-		if desc == "" {
-			desc = "Unknown error"
-		}
-		return nil, fmt.Errorf("app registration failed: %s", desc)
+		return nil, effectiveBrand, fmt.Errorf("app registration failed: %s", desc)
 	}
-
-	if attempts >= maxPollAttempts {
-		fmt.Fprintf(errOut, "[lark-cli] [WARN] app-registration: max poll attempts (%d) reached\n", maxPollAttempts)
-	}
-	return nil, fmt.Errorf("app registration timed out, please try again")
 }

internal/auth/app_registration_test.go

@@ -4,11 +4,28 @@
 package auth
 
 import (
+	"context"
+	"errors"
+	"io"
+	"net/http"
+	"strings"
 	"testing"
+	"time"
 
+	"github.com/larksuite/cli/internal/core"
 	"github.com/smartystreets/goconvey/convey"
 )
 
+// jsonResponse builds a canned registration response (transport fakes reuse
+// roundTripFunc from device_flow_test.go).
+func jsonResponse(body string) *http.Response {
+	return &http.Response{
+		StatusCode: http.StatusOK,
+		Body:       io.NopCloser(strings.NewReader(body)),
+		Header:     make(http.Header),
+	}
+}
+
 // Test_BuildVerificationURL verifies that tracking parameters are correctly appended.
 func Test_BuildVerificationURL(t *testing.T) {
 	t.Run("URL不含问号则添加?分隔符", func(t *testing.T) {
@@ -31,3 +48,358 @@ func Test_BuildVerificationURL(t *testing.T) {
 		})
 	})
 }
+
+func TestAppRegistrationEndpoint(t *testing.T) {
+	cases := []struct {
+		brand core.LarkBrand
+		want  string
+	}{
+		{core.BrandFeishu, "https://accounts.feishu.cn" + PathAppRegistration},
+		{core.BrandLark, "https://accounts.larksuite.com" + PathAppRegistration},
+	}
+	for _, c := range cases {
+		if got := appRegistrationEndpoint(c.brand); got != c.want {
+			t.Errorf("brand %q: endpoint = %q, want %q", c.brand, got, c.want)
+		}
+	}
+}
+
+func TestRequestAppRegistration_UsesFeishuBootstrapAndConfiguredVerificationBrand(t *testing.T) {
+	cases := []struct {
+		brand            core.LarkBrand
+		verificationHost string
+	}{
+		{core.BrandFeishu, "open.feishu.cn"},
+		{core.BrandLark, "open.larksuite.com"},
+	}
+	for _, c := range cases {
+		t.Run(string(c.brand), func(t *testing.T) {
+			client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+				if got, want := r.URL.Host, "accounts.feishu.cn"; got != want {
+					t.Errorf("begin host = %q, want bootstrap host %q", got, want)
+				}
+				return jsonResponse(`{"device_code":"d","user_code":"TEST-CODE","expire_in":60,"interval":5}`), nil
+			})}
+			resp, err := RequestAppRegistration(context.Background(), client, c.brand, io.Discard)
+			if err != nil {
+				t.Fatalf("RequestAppRegistration(%q) error = %v", c.brand, err)
+			}
+			if !strings.HasPrefix(resp.VerificationUriComplete, "https://"+c.verificationHost+"/page/cli?") {
+				t.Errorf("verification URL = %q, want host %q", resp.VerificationUriComplete, c.verificationHost)
+			}
+		})
+	}
+}
+
+// Full Lark routing contract: Lark selects the Lark verification page, while
+// registration bootstraps on Feishu and switches only after the tenant signal.
+// The Lark credential response omits user_info, so the effective domain must
+// still determine the saved brand.
+func TestRegisterAppWithDiscovery_LarkFlowUsesProtocolBootstrap(t *testing.T) {
+	var calls []string
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		if err := r.ParseForm(); err != nil {
+			t.Fatalf("parse form: %v", err)
+		}
+		action := r.Form.Get("action")
+		calls = append(calls, action+"@"+r.URL.Host)
+		if action == "begin" {
+			return jsonResponse(`{"device_code":"device","user_code":"TEST-CODE","expire_in":60,"interval":0}`), nil
+		}
+		switch r.URL.Host {
+		case "accounts.feishu.cn":
+			return jsonResponse(`{"user_info":{"open_id":"ou_x","tenant_brand":"lark"}}`), nil
+		case "accounts.larksuite.com":
+			return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+		}
+		t.Errorf("unexpected host polled: %s", r.URL.Host)
+		return jsonResponse(`{}`), nil
+	})}
+	resp, err := RequestAppRegistration(context.Background(), client, core.BrandLark, io.Discard)
+	if err != nil {
+		t.Fatalf("RequestAppRegistration error = %v", err)
+	}
+	if got, want := resp.VerificationUriComplete, "https://open.larksuite.com/page/cli?user_code=TEST-CODE"; got != want {
+		t.Errorf("verification URL = %q, want %q", got, want)
+	}
+
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if finalBrand != core.BrandLark {
+		t.Errorf("finalBrand = %q, want %q (credentials were issued on the lark domain)", finalBrand, core.BrandLark)
+	}
+	if result.ClientID != "cli_x" || result.ClientSecret != "test-secret" {
+		t.Errorf("credentials = (%q, %q), want (cli_x, test-secret)", result.ClientID, result.ClientSecret)
+	}
+	want := []string{"begin@accounts.feishu.cn", "poll@accounts.feishu.cn", "poll@accounts.larksuite.com"}
+	if len(calls) != len(want) {
+		t.Fatalf("calls = %v, want %v", calls, want)
+	}
+	for i := range want {
+		if calls[i] != want[i] {
+			t.Errorf("calls = %v, want %v", calls, want)
+			break
+		}
+	}
+}
+
+// Plain path: the bootstrap domain can return complete Feishu credentials in
+// one poll, even when user_info is absent.
+func TestRegisterAppWithDiscovery_BootstrapBrandSinglePoll(t *testing.T) {
+	polls := 0
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polls++
+		if got, want := r.URL.Host, "accounts.feishu.cn"; got != want {
+			t.Errorf("poll host = %q, want %q", got, want)
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	_, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if finalBrand != core.BrandFeishu {
+		t.Errorf("finalBrand = %q, want %q", finalBrand, core.BrandFeishu)
+	}
+	if polls != 1 {
+		t.Errorf("polls = %d, want 1", polls)
+	}
+}
+
+// The discovery deadline must cancel in-flight requests: the fake transport
+// hangs until the request context is done.
+func TestRegisterAppWithDiscovery_DeadlineBoundsInFlightRequests(t *testing.T) {
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		<-r.Context().Done()
+		return nil, r.Context().Err()
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 1}
+
+	start := time.Now()
+	_, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err == nil {
+		t.Fatal("expected timeout error, got nil")
+	}
+	if !strings.Contains(err.Error(), "timed out") {
+		t.Errorf("error = %v, want a timed-out terminal reason", err)
+	}
+	if elapsed := time.Since(start); elapsed > 3*time.Second {
+		t.Errorf("discovery not bounded by its deadline: took %v", elapsed)
+	}
+}
+
+// Empty payloads and incomplete same-brand responses are not terminal.
+func TestRegisterAppWithDiscovery_PollsUntilCredentials(t *testing.T) {
+	responses := []string{
+		`{}`,
+		`{"client_id":"cli_x","user_info":{"open_id":"ou_x","tenant_brand":"feishu"}}`,
+		`{"client_id":"cli_x","client_secret":"test-secret","user_info":{"open_id":"ou_x","tenant_brand":"feishu"}}`,
+	}
+	polls := 0
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		body := responses[polls]
+		polls++
+		return jsonResponse(body), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if polls != 3 {
+		t.Errorf("polls = %d, want 3", polls)
+	}
+	if result.ClientSecret != "test-secret" || finalBrand != core.BrandFeishu {
+		t.Errorf("result = (%q, %q), want (test-secret, feishu)", result.ClientSecret, finalBrand)
+	}
+}
+
+// Neither the first poll nor the cross-brand switch waits out the interval
+// (a 5s interval would blow the elapsed bound).
+func TestRegisterAppWithDiscovery_ImmediateFirstPollAndSwitch(t *testing.T) {
+	var polledHosts []string
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polledHosts = append(polledHosts, r.URL.Host)
+		if r.URL.Host == "accounts.feishu.cn" {
+			return jsonResponse(`{"user_info":{"open_id":"ou_x","tenant_brand":"lark"}}`), nil
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 5, ExpiresIn: 60}
+
+	start := time.Now()
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if elapsed := time.Since(start); elapsed > 2*time.Second {
+		t.Errorf("discovery waited an interval somewhere: took %v", elapsed)
+	}
+	if finalBrand != core.BrandLark || result.ClientSecret != "test-secret" {
+		t.Errorf("result = (%q, %q), want (test-secret, lark)", result.ClientSecret, finalBrand)
+	}
+	want := []string{"accounts.feishu.cn", "accounts.larksuite.com"}
+	if len(polledHosts) != 2 || polledHosts[0] != want[0] || polledHosts[1] != want[1] {
+		t.Errorf("polled hosts = %v, want %v", polledHosts, want)
+	}
+}
+
+// Denial and expiry map to sentinels; cancellation preserves its cause.
+func TestRegisterAppWithDiscovery_TerminalSentinels(t *testing.T) {
+	deny := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		return jsonResponse(`{"error":"access_denied"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+	_, _, err := RegisterAppWithDiscovery(context.Background(), deny, resp, io.Discard)
+	if !errors.Is(err, ErrRegistrationDenied) {
+		t.Errorf("denied err = %v, want ErrRegistrationDenied", err)
+	}
+
+	expired := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		return jsonResponse(`{"error":"expired_token"}`), nil
+	})}
+	_, _, err = RegisterAppWithDiscovery(context.Background(), expired, resp, io.Discard)
+	if !errors.Is(err, ErrRegistrationExpired) {
+		t.Errorf("expired err = %v, want ErrRegistrationExpired", err)
+	}
+
+	cancelledCtx, cancel := context.WithCancel(context.Background())
+	cancel()
+	_, _, err = RegisterAppWithDiscovery(cancelledCtx, deny, resp, io.Discard)
+	if !errors.Is(err, context.Canceled) {
+		t.Errorf("cancelled err = %v, want a context.Canceled cause", err)
+	}
+}
+
+// Begin parsing: expire_in (legacy expires_in fallback), normalization, and
+// required device_code.
+func TestRequestAppRegistration_ProtocolFields(t *testing.T) {
+	serve := func(body string) *http.Client {
+		return &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+			return jsonResponse(body), nil
+		})}
+	}
+
+	resp, err := RequestAppRegistration(context.Background(),
+		serve(`{"device_code":"d","expire_in":60,"interval":3}`), core.BrandFeishu, io.Discard)
+	if err != nil {
+		t.Fatalf("begin error = %v", err)
+	}
+	if resp.ExpiresIn != 60 || resp.Interval != 3 {
+		t.Errorf("parsed (expire=%d, interval=%d), want (60, 3)", resp.ExpiresIn, resp.Interval)
+	}
+
+	resp, err = RequestAppRegistration(context.Background(),
+		serve(`{"device_code":"d","expires_in":45}`), core.BrandFeishu, io.Discard)
+	if err != nil {
+		t.Fatalf("legacy begin error = %v", err)
+	}
+	if resp.ExpiresIn != 45 || resp.Interval != 5 {
+		t.Errorf("legacy parsed (expire=%d, interval=%d), want (45, 5 — normalized default)", resp.ExpiresIn, resp.Interval)
+	}
+
+	resp, err = RequestAppRegistration(context.Background(),
+		serve(`{"device_code":"d","interval":0}`), core.BrandFeishu, io.Discard)
+	if err != nil {
+		t.Fatalf("defaults begin error = %v", err)
+	}
+	if resp.ExpiresIn != 600 || resp.Interval != 5 {
+		t.Errorf("defaults parsed (expire=%d, interval=%d), want (600, 5)", resp.ExpiresIn, resp.Interval)
+	}
+
+	if _, err := RequestAppRegistration(context.Background(),
+		serve(`{"interval":5}`), core.BrandFeishu, io.Discard); err == nil {
+		t.Error("missing device_code: expected error, got nil")
+	}
+}
+
+// A tenant signal arriving alongside authorization_pending must still switch
+// the polled domain (the official SDK checks the signal before the error).
+func TestRegisterAppWithDiscovery_PendingWithTenantSignalSwitches(t *testing.T) {
+	var polledHosts []string
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polledHosts = append(polledHosts, r.URL.Host)
+		if r.URL.Host == "accounts.feishu.cn" {
+			return jsonResponse(`{"error":"authorization_pending","user_info":{"tenant_brand":"lark"}}`), nil
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	result, finalBrand, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil", err)
+	}
+	if finalBrand != core.BrandLark || result.ClientSecret != "test-secret" {
+		t.Errorf("result = (%q, %q), want (test-secret, lark)", result.ClientSecret, finalBrand)
+	}
+	want := []string{"accounts.feishu.cn", "accounts.larksuite.com"}
+	if len(polledHosts) != 2 || polledHosts[0] != want[0] || polledHosts[1] != want[1] {
+		t.Errorf("polled hosts = %v, want %v", polledHosts, want)
+	}
+}
+
+// Polling has no attempt cap: only the expiry budget terminates the loop.
+func TestRegisterAppWithDiscovery_NoAttemptCap(t *testing.T) {
+	polls := 0
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		polls++
+		if polls <= 250 {
+			return jsonResponse(`{"error":"authorization_pending"}`), nil
+		}
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret"}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 30}
+
+	result, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err != nil {
+		t.Fatalf("RegisterAppWithDiscovery error = %v, want nil (no attempts cap)", err)
+	}
+	if polls != 251 || result.ClientSecret != "test-secret" {
+		t.Errorf("polls = %d (want 251), secret = %q", polls, result.ClientSecret)
+	}
+}
+
+// A final tenant report contradicting the issuing domain is a protocol
+// violation, not a brand override: the saved brand must never diverge from
+// the domain that issued the credentials.
+func TestRegisterAppWithDiscovery_ContradictoryFinalBrandFails(t *testing.T) {
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		if r.URL.Host == "accounts.feishu.cn" {
+			return jsonResponse(`{"error":"authorization_pending","user_info":{"tenant_brand":"lark"}}`), nil
+		}
+		// The lark domain issues credentials but reports a feishu tenant.
+		return jsonResponse(`{"client_id":"cli_x","client_secret":"test-secret","user_info":{"tenant_brand":"feishu"}}`), nil
+	})}
+	resp := &AppRegistrationResponse{DeviceCode: "device", Interval: 0, ExpiresIn: 5}
+
+	_, _, err := RegisterAppWithDiscovery(context.Background(), client, resp, io.Discard)
+	if err == nil || !strings.Contains(err.Error(), "contradictory tenant brand") {
+		t.Errorf("err = %v, want contradictory-tenant-brand protocol error", err)
+	}
+}
+
+// A cancelled body read during begin must keep its context cause so the
+// command layer classifies it as a cancellation, not an API failure.
+func TestRequestAppRegistration_BodyReadCancelKeepsCause(t *testing.T) {
+	client := &http.Client{Transport: roundTripFunc(func(r *http.Request) (*http.Response, error) {
+		return &http.Response{
+			StatusCode: http.StatusOK,
+			Body:       io.NopCloser(&errReader{err: context.Canceled}),
+			Header:     make(http.Header),
+		}, nil
+	})}
+	_, err := RequestAppRegistration(context.Background(), client, core.BrandFeishu, io.Discard)
+	if !errors.Is(err, context.Canceled) {
+		t.Errorf("err = %v, want a context.Canceled cause", err)
+	}
+}
+
+type errReader struct{ err error }
+
+func (r *errReader) Read([]byte) (int, error) { return 0, r.err }

internal/cmdutil/dryrun.go

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

internal/cmdutil/dryrun_test.go

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

internal/core/config.go

@@ -268,7 +268,7 @@ func ResolveConfigFromMulti(raw *MultiAppConfig, kc keychain.KeychainAccess, pro
 		ProfileName: app.ProfileName(),
 		AppID:       app.AppId,
 		AppSecret:   secret,
-		Brand:       app.Brand,
+		Brand:       ParseBrand(string(app.Brand)),
 		Lang:        app.Lang,
 		DefaultAs:   app.DefaultAs,
 	}

internal/core/config_test.go

@@ -230,3 +230,20 @@ func TestCliConfig_CanBot(t *testing.T) {
 		})
 	}
 }
+
+// Runtime configs must never carry raw brand casing: the config ingress
+// normalizes it, so downstream equality checks see canonical values.
+func TestResolveConfigFromMulti_NormalizesBrand(t *testing.T) {
+	multi := &MultiAppConfig{Apps: []AppConfig{{
+		AppId:     "cli_x",
+		AppSecret: PlainSecret("test-secret"),
+		Brand:     LarkBrand(" LARK "),
+	}}}
+	cfg, err := ResolveConfigFromMulti(multi, nil, "")
+	if err != nil {
+		t.Fatalf("ResolveConfigFromMulti error = %v", err)
+	}
+	if cfg.Brand != BrandLark {
+		t.Errorf("Brand = %q, want %q (normalized at ingress)", cfg.Brand, BrandLark)
+	}
+}

internal/core/types.go

@@ -3,9 +3,11 @@
 
 package core
 
+import "strings"
+
 // LarkBrand represents the Lark platform brand.
 // "feishu" targets China-mainland, "lark" targets international.
-// Any other string is treated as a custom base URL.
+// ParseBrand and ResolveEndpoints map unrecognized values to BrandFeishu.
 type LarkBrand string
 
 const (
@@ -13,10 +15,10 @@ const (
 	BrandLark   LarkBrand = "lark"
 )
 
-// ParseBrand normalizes a brand string to a LarkBrand constant.
-// Unrecognized values default to BrandFeishu.
+// ParseBrand normalizes a brand string (case-insensitive, whitespace-tolerant);
+// anything other than "lark" normalizes to BrandFeishu.
 func ParseBrand(value string) LarkBrand {
-	if value == "lark" {
+	if strings.ToLower(strings.TrimSpace(value)) == "lark" {
 		return BrandLark
 	}
 	return BrandFeishu
@@ -36,9 +38,10 @@ type Endpoints struct {
 	AppLink  string // e.g. "https://applink.feishu.cn"
 }
 
-// ResolveEndpoints resolves endpoint URLs based on brand.
+// ResolveEndpoints resolves endpoint URLs for the brand, normalizing its
+// input so stored values with unusual casing still resolve correctly.
 func ResolveEndpoints(brand LarkBrand) Endpoints {
-	switch brand {
+	switch ParseBrand(string(brand)) {
 	case BrandLark:
 		return Endpoints{
 			Open:     "https://open.larksuite.com",

internal/core/types_test.go

@@ -57,3 +57,37 @@ func TestResolveOpenBaseURL(t *testing.T) {
 		t.Errorf("ResolveOpenBaseURL(lark) = %q", got)
 	}
 }
+
+func TestParseBrand(t *testing.T) {
+	cases := []struct {
+		in   string
+		want LarkBrand
+	}{
+		{"", BrandFeishu},
+		{"feishu", BrandFeishu},
+		{"lark", BrandLark},
+		{"LARK", BrandLark},
+		{" lark ", BrandLark},
+		{"Lark", BrandLark},
+		{"xyz", BrandFeishu},
+	}
+	for _, c := range cases {
+		if got := ParseBrand(c.in); got != c.want {
+			t.Errorf("ParseBrand(%q) = %q, want %q", c.in, got, c.want)
+		}
+	}
+}
+
+// TestResolveEndpoints_NormalizesBrand locks the boundary invariant: the
+// resolver normalizes its brand input, so historical config values with
+// unusual casing or whitespace still resolve to their intended endpoints.
+func TestResolveEndpoints_NormalizesBrand(t *testing.T) {
+	for _, raw := range []string{"LARK", " lark ", "Lark"} {
+		if got := ResolveEndpoints(LarkBrand(raw)).Open; got != "https://open.larksuite.com" {
+			t.Errorf("ResolveEndpoints(%q).Open = %q, want the lark endpoint", raw, got)
+		}
+	}
+	if got := ResolveEndpoints(LarkBrand("unexpected")).Open; got != "https://open.feishu.cn" {
+		t.Errorf("ResolveEndpoints(unexpected).Open = %q, want the feishu default", got)
+	}
+}

internal/credential/types.go

@@ -72,7 +72,8 @@ func AccountFromCliConfig(cfg *core.CliConfig) *Account {
 	}
 }
 
-// ToCliConfig copies the credential-layer account into the downstream config shape.
+// ToCliConfig copies the credential-layer account into the downstream config
+// shape, normalizing the brand so runtime consumers never see raw casing.
 func (a *Account) ToCliConfig() *core.CliConfig {
 	if a == nil {
 		return nil
@@ -81,7 +82,7 @@ func (a *Account) ToCliConfig() *core.CliConfig {
 		ProfileName:         a.ProfileName,
 		AppID:               a.AppID,
 		AppSecret:           normalizeAccountAppSecret(a.AppSecret),
-		Brand:               a.Brand,
+		Brand:               core.ParseBrand(string(a.Brand)),
 		DefaultAs:           a.DefaultAs,
 		UserOpenId:          a.UserOpenId,
 		UserName:            a.UserName,

internal/credential/types_test.go

@@ -130,3 +130,11 @@ func TestRuntimeAppSecret_TokenOnlyUsesPlaceholder(t *testing.T) {
 		t.Fatalf("RuntimeAppSecret(real) = %q, want %q", got, "secret-1")
 	}
 }
+
+// The credential-layer ingress normalizes brand casing for all runtime consumers.
+func TestToCliConfig_NormalizesBrand(t *testing.T) {
+	acct := &Account{AppID: "cli_x", Brand: " LARK "}
+	if got := acct.ToCliConfig().Brand; got != core.BrandLark {
+		t.Errorf("Brand = %q, want %q", got, core.BrandLark)
+	}
+}

internal/errclass/classify_test.go

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

internal/errclass/codemeta_drive.go

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

internal/output/capabilities.go

@@ -0,0 +1,61 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package output
+
+import (
+	"slices"
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+)
+
+// FormatCapabilities is the single description of the output formats a
+// command supports. Help text, shell completion, shorthand normalization and
+// runtime validation all consume the same value so they cannot drift apart.
+type FormatCapabilities struct {
+	names []string
+}
+
+var (
+	// StandardFormats applies to API, service and ordinary shortcut commands.
+	StandardFormats = NewFormatCapabilities("json", "pretty", "table", "ndjson", "csv")
+	// JSONPrettyFormats applies to commands with a dedicated human renderer and
+	// no streaming/tabular output, such as auth scopes.
+	JSONPrettyFormats = NewFormatCapabilities("json", "pretty")
+)
+
+// NewFormatCapabilities constructs an immutable format capability set.
+func NewFormatCapabilities(names ...string) FormatCapabilities {
+	return FormatCapabilities{names: append([]string(nil), names...)}
+}
+
+// Names returns a copy suitable for completion candidates.
+func (c FormatCapabilities) Names() []string {
+	return append([]string(nil), c.names...)
+}
+
+// Usage returns the canonical help text for a --format flag.
+func (c FormatCapabilities) Usage() string {
+	return "output format: " + strings.Join(c.names, "|")
+}
+
+// Supports reports whether name is part of this command's output contract.
+func (c FormatCapabilities) Supports(name string) bool {
+	return slices.Contains(c.names, strings.ToLower(name))
+}
+
+// Resolve applies the --json shorthand and validates the selected format.
+// An explicit --format always wins over --json.
+func (c FormatCapabilities) Resolve(format string, formatExplicit, jsonShorthand bool) (string, error) {
+	if jsonShorthand && !formatExplicit {
+		format = "json"
+	}
+	format = strings.ToLower(format)
+	if c.Supports(format) {
+		return format, nil
+	}
+	return "", errs.NewValidationError(errs.SubtypeInvalidArgument,
+		"unsupported output format %q; supported formats: %s", format, strings.Join(c.names, ", ")).
+		WithParam("--format")
+}

internal/output/capabilities_test.go

@@ -0,0 +1,53 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package output
+
+import (
+	"errors"
+	"reflect"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+)
+
+func TestFormatCapabilitiesResolve(t *testing.T) {
+	tests := []struct {
+		name           string
+		format         string
+		formatExplicit bool
+		jsonShorthand  bool
+		want           string
+		wantErr        bool
+	}{
+		{name: "default", format: "json", want: "json"},
+		{name: "json shorthand", format: "table", jsonShorthand: true, want: "json"},
+		{name: "explicit format wins", format: "table", formatExplicit: true, jsonShorthand: true, want: "table"},
+		{name: "case normalized", format: "PRETTY", formatExplicit: true, want: "pretty"},
+		{name: "unsupported", format: "xml", formatExplicit: true, wantErr: true},
+	}
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			got, err := StandardFormats.Resolve(tt.format, tt.formatExplicit, tt.jsonShorthand)
+			if tt.wantErr {
+				var validationErr *errs.ValidationError
+				if !errors.As(err, &validationErr) || validationErr.Subtype != errs.SubtypeInvalidArgument || validationErr.Param != "--format" {
+					t.Fatalf("Resolve() error = %T %v, want invalid_argument --format validation error", err, err)
+				}
+				return
+			}
+			if err != nil || got != tt.want {
+				t.Fatalf("Resolve() = %q, %v; want %q, nil", got, err, tt.want)
+			}
+		})
+	}
+}
+
+func TestFormatCapabilitiesDriveHelpAndCompletion(t *testing.T) {
+	if got, want := StandardFormats.Usage(), "output format: json|pretty|table|ndjson|csv"; got != want {
+		t.Fatalf("Usage() = %q, want %q", got, want)
+	}
+	if got, want := StandardFormats.Names(), []string{"json", "pretty", "table", "ndjson", "csv"}; !reflect.DeepEqual(got, want) {
+		t.Fatalf("Names() = %v, want %v", got, want)
+	}
+}

internal/output/envelope.go

@@ -7,6 +7,7 @@ package output
 type Envelope struct {
 	OK                 bool                   `json:"ok"`
 	Identity           string                 `json:"identity,omitempty"`
+	DryRun             bool                   `json:"dry_run,omitempty"`
 	Data               interface{}            `json:"data,omitempty"`
 	Meta               *Meta                  `json:"meta,omitempty"`
 	ContentSafetyAlert interface{}            `json:"_content_safety_alert,omitempty"`

internal/output/envelope_success.go

@@ -9,6 +9,7 @@ import "io"
 type SuccessEnvelopeOptions struct {
 	CommandPath string
 	Identity    string
+	DryRun      bool
 	JqExpr      string
 	Out         io.Writer
 	ErrOut      io.Writer
@@ -41,6 +42,7 @@ func WriteSuccessEnvelope(data interface{}, opts SuccessEnvelopeOptions) error {
 	env := Envelope{
 		OK:       true,
 		Identity: opts.Identity,
+		DryRun:   opts.DryRun,
 		Data:     data,
 		Notice:   GetNotice(),
 	}

internal/output/envelope_success_test.go

@@ -104,6 +104,47 @@ func TestWriteSuccessEnvelope_JqUsesEnvelope(t *testing.T) {
 	}
 }
 
+func TestWriteSuccessEnvelope_DryRunMarker(t *testing.T) {
+	var out strings.Builder
+
+	err := WriteSuccessEnvelope(map[string]interface{}{"api": []interface{}{}}, SuccessEnvelopeOptions{
+		Identity: "bot",
+		DryRun:   true,
+		Out:      &out,
+	})
+	if err != nil {
+		t.Fatalf("WriteSuccessEnvelope() error = %v", err)
+	}
+
+	var env map[string]interface{}
+	if err := json.Unmarshal([]byte(out.String()), &env); err != nil {
+		t.Fatalf("invalid JSON output: %v\n%s", err, out.String())
+	}
+	if env["ok"] != true || env["identity"] != "bot" || env["dry_run"] != true {
+		t.Fatalf("unexpected dry-run envelope: %#v", env)
+	}
+	if _, ok := env["data"].(map[string]interface{}); !ok {
+		t.Fatalf("data = %#v, want object", env["data"])
+	}
+}
+
+func TestWriteSuccessEnvelope_DryRunJqUsesEnvelope(t *testing.T) {
+	var out strings.Builder
+
+	err := WriteSuccessEnvelope(map[string]interface{}{"api": []interface{}{}}, SuccessEnvelopeOptions{
+		Identity: "bot",
+		DryRun:   true,
+		JqExpr:   ".dry_run",
+		Out:      &out,
+	})
+	if err != nil {
+		t.Fatalf("WriteSuccessEnvelope() error = %v", err)
+	}
+	if strings.TrimSpace(out.String()) != "true" {
+		t.Fatalf("jq output = %q, want true", out.String())
+	}
+}
+
 func TestWriteSuccessEnvelope_JqWarnsWhenSafetyAlertFiltered(t *testing.T) {
 	t.Setenv("LARKSUITE_CLI_CONTENT_SAFETY_MODE", "warn")
 	extcs.Register(&mockProvider{

internal/output/format.go

@@ -103,6 +103,9 @@ func ExtractItems(data interface{}) []interface{} {
 func FormatValue(w io.Writer, data interface{}, format Format) {
 	data = toGeneric(data)
 	switch format {
+	case FormatPretty:
+		PrintJson(w, data)
+
 	case FormatNDJSON:
 		items := ExtractItems(data)
 		if items != nil {
@@ -149,6 +152,9 @@ func NewPaginatedFormatter(w io.Writer, format Format) *PaginatedFormatter {
 // FormatPage formats one page of items.
 func (pf *PaginatedFormatter) FormatPage(data interface{}) {
 	switch pf.Format {
+	case FormatPretty:
+		PrintJson(pf.W, data)
+
 	case FormatJSON, FormatNDJSON:
 		if arr, ok := data.([]interface{}); ok {
 			PrintNdjson(pf.W, arr)

internal/output/format_test.go

@@ -73,6 +73,30 @@ func TestFormatValue_Table(t *testing.T) {
 	}
 }
 
+func TestFormatValue_Pretty(t *testing.T) {
+	data := map[string]interface{}{
+		"data": map[string]interface{}{
+			"items": []interface{}{
+				map[string]interface{}{"name": "Alice"},
+			},
+		},
+	}
+
+	var buf bytes.Buffer
+	FormatValue(&buf, data, FormatPretty)
+	out := buf.String()
+
+	if !json.Valid([]byte(out)) {
+		t.Fatalf("pretty output should be valid JSON, got:\n%s", out)
+	}
+	if !strings.Contains(out, "\n  \"data\": {") || !strings.Contains(out, `"name": "Alice"`) {
+		t.Fatalf("pretty output should be indented JSON, got:\n%s", out)
+	}
+	if strings.Contains(out, "─") {
+		t.Fatalf("pretty output should not render a table, got:\n%s", out)
+	}
+}
+
 func TestFormatValue_CSV(t *testing.T) {
 	data := map[string]interface{}{
 		"data": map[string]interface{}{
@@ -149,6 +173,20 @@ func TestPaginatedFormatter_Table(t *testing.T) {
 	}
 }
 
+func TestPaginatedFormatter_Pretty(t *testing.T) {
+	var buf bytes.Buffer
+	pf := NewPaginatedFormatter(&buf, FormatPretty)
+
+	pf.FormatPage([]interface{}{map[string]interface{}{"name": "Alice"}})
+	out := buf.String()
+	if !json.Valid([]byte(out)) {
+		t.Fatalf("paginated pretty output should be valid JSON, got:\n%s", out)
+	}
+	if !strings.Contains(out, "\n  {") || !strings.Contains(out, `"name": "Alice"`) {
+		t.Fatalf("paginated pretty output should be indented JSON, got:\n%s", out)
+	}
+}
+
 func TestPaginatedFormatter_CSV(t *testing.T) {
 	var buf bytes.Buffer
 	pf := NewPaginatedFormatter(&buf, FormatCSV)

internal/output/format_type.go

@@ -10,6 +10,7 @@ type Format int
 
 const (
 	FormatJSON Format = iota
+	FormatPretty
 	FormatNDJSON
 	FormatTable
 	FormatCSV
@@ -22,6 +23,8 @@ func ParseFormat(s string) (Format, bool) {
 	switch strings.ToLower(s) {
 	case "json", "":
 		return FormatJSON, true
+	case "pretty":
+		return FormatPretty, true
 	case "ndjson":
 		return FormatNDJSON, true
 	case "table":
@@ -36,6 +39,8 @@ func ParseFormat(s string) (Format, bool) {
 // String returns the string representation of a Format.
 func (f Format) String() string {
 	switch f {
+	case FormatPretty:
+		return "pretty"
 	case FormatNDJSON:
 		return "ndjson"
 	case FormatTable:

internal/output/format_type_test.go

@@ -14,6 +14,9 @@ func TestParseFormat(t *testing.T) {
 		{"json", FormatJSON, true},
 		{"JSON", FormatJSON, true},
 		{"Json", FormatJSON, true},
+		{"pretty", FormatPretty, true},
+		{"PRETTY", FormatPretty, true},
+		{"Pretty", FormatPretty, true},
 		{"ndjson", FormatNDJSON, true},
 		{"NDJSON", FormatNDJSON, true},
 		{"Ndjson", FormatNDJSON, true},
@@ -52,6 +55,7 @@ func TestFormatString(t *testing.T) {
 		want   string
 	}{
 		{FormatJSON, "json"},
+		{FormatPretty, "pretty"},
 		{FormatNDJSON, "ndjson"},
 		{FormatTable, "table"},
 		{FormatCSV, "csv"},

internal/qualitygate/cmd/manifest-export/collect.go

@@ -11,6 +11,7 @@ import (
 
 	rootcmd "github.com/larksuite/cli/cmd"
 	"github.com/larksuite/cli/internal/cmdmeta"
+	"github.com/larksuite/cli/internal/cmdpolicy"
 	"github.com/larksuite/cli/internal/cmdutil"
 	"github.com/larksuite/cli/internal/qualitygate/manifest"
 	"github.com/larksuite/cli/internal/registry"
@@ -94,7 +95,7 @@ func commandFromCobra(c *cobra.Command, defaultFields map[string][]string) manif
 		Short:         c.Short,
 		Example:       c.Example,
 		Hidden:        c.Hidden,
-		Runnable:      c.Runnable(),
+		Runnable:      c.Runnable() && !cmdpolicy.IsPureGroup(c),
 		Source:        source,
 		Generated:     cmdmeta.Generated(c),
 		Identities:    cmdmeta.Identities(c),

internal/qualitygate/cmd/manifest-export/main_test.go

@@ -90,6 +90,20 @@ func TestCollectContainsDocsFetchAndDryRunFlag(t *testing.T) {
 	}
 }
 
+func TestCollectMarksPureNavigationGroupsNonRunnable(t *testing.T) {
+	got, err := collectCommandIndex(context.Background())
+	if err != nil {
+		t.Fatalf("collectCommandIndex() error = %v", err)
+	}
+	cmd := findManifestCommand(&got, "approval")
+	if cmd == nil {
+		t.Fatalf("approval group not found")
+	}
+	if cmd.Runnable {
+		t.Fatalf("approval is a navigation group and must not be exported as runnable")
+	}
+}
+
 func TestCollectExcludesGeneratedServiceCommands(t *testing.T) {
 	got, err := collectHandAuthored(context.Background())
 	if err != nil {

internal/qualitygate/cmd/semantic-review/main_test.go

@@ -9,12 +9,15 @@ import (
 	"path/filepath"
 	"strings"
 	"testing"
+	"time"
 
 	"github.com/larksuite/cli/internal/qualitygate/facts"
 	"github.com/larksuite/cli/internal/qualitygate/semantic"
 )
 
 func TestRunLoadsPolicyAndWaivers(t *testing.T) {
+	freezeNow(t, time.Date(2026, 6, 12, 0, 0, 0, 0, time.UTC))
+
 	repo := t.TempDir()
 	writeSemanticConfig(t, repo, `{
 	  "schema_version": 1,
@@ -65,6 +68,8 @@ func TestRunLoadsPolicyAndWaivers(t *testing.T) {
 }
 
 func TestRunLoadsWaiversFromOverrideFile(t *testing.T) {
+	freezeNow(t, time.Date(2026, 6, 12, 0, 0, 0, 0, time.UTC))
+
 	repo := t.TempDir()
 	writeSemanticConfig(t, repo, `{
 	  "schema_version": 1,
@@ -370,6 +375,13 @@ func writeSemanticConfig(t *testing.T, repo, policy, models, waivers string) {
 	}
 }
 
+func freezeNow(t *testing.T, fixed time.Time) {
+	t.Helper()
+	original := now
+	now = func() time.Time { return fixed }
+	t.Cleanup(func() { now = original })
+}
+
 func readDecision(t *testing.T, path string) semantic.Decision {
 	t.Helper()
 	data, err := os.ReadFile(path)

internal/qualitygate/rules/dryrun.go

@@ -878,16 +878,23 @@ func extractDryRunJSON(raw []byte) (facts.DryRunRequest, int, error) {
 	var firstErr error
 	for start >= 0 {
 		var preview struct {
-			API []facts.DryRunRequest `json:"api"`
+			API  []facts.DryRunRequest `json:"api"`
+			Data struct {
+				API []facts.DryRunRequest `json:"api"`
+			} `json:"data"`
 		}
 		dec := json.NewDecoder(bytes.NewReader(raw[start:]))
 		if err := dec.Decode(&preview); err == nil {
-			if len(preview.API) == 0 {
+			api := preview.API
+			if len(api) == 0 {
+				api = preview.Data.API
+			}
+			if len(api) == 0 {
 				if firstErr == nil {
 					firstErr = errNoDryRunAPI
 				}
 			} else {
-				return preview.API[0], len(preview.API), nil
+				return api[0], len(api), nil
 			}
 		} else if firstErr == nil {
 			firstErr = err

internal/qualitygate/rules/dryrun_test.go

@@ -33,6 +33,17 @@ func TestExtractDryRunJSONSkipsBanner(t *testing.T) {
 	}
 }
 
+func TestExtractDryRunJSONReadsSuccessEnvelope(t *testing.T) {
+	raw := `{"ok":true,"dry_run":true,"data":{"api":[{"method":"GET","url":"/open-apis/test"}]}}`
+	got, apiCallCount, err := extractDryRunJSON([]byte(raw))
+	if err != nil {
+		t.Fatalf("extractDryRunJSON() error = %v", err)
+	}
+	if got.Method != "GET" || got.URL != "/open-apis/test" || apiCallCount != 1 {
+		t.Fatalf("got request=%#v apiCallCount=%d, want enveloped GET and count 1", got, apiCallCount)
+	}
+}
+
 func TestExtractDryRunJSONSkipsBannerWithBraces(t *testing.T) {
 	raw := "banner {not json}\n{\"api\":[{\"method\":\"GET\",\"url\":\"/open-apis/test\"}]}\n"
 	got, apiCallCount, err := extractDryRunJSON([]byte(raw))

internal/registry/loader.go

@@ -69,6 +69,12 @@ func Init() {
 	InitWithBrand(core.BrandFeishu)
 }
 
+// ConfiguredBrand reports the brand the registry was initialized with
+// (empty before initialization). Diagnostics and startup-order tests use it.
+func ConfiguredBrand() core.LarkBrand {
+	return configuredBrand
+}
+
 // InitWithBrand initializes the registry by loading embedded data and optionally
 // overlaying cached remote data. The brand determines which remote API host to use.
 // It is safe to call multiple times (sync.Once).

internal/registry/registry_test.go

@@ -248,10 +248,18 @@ func TestLoadPlatformAutoApproveSet(t *testing.T) {
 
 func TestLoadOverrideAutoApproveAllow(t *testing.T) {
 	allowSet := LoadOverrideAutoApproveAllow()
-	// recommend.allow in scope_overrides.json is intentionally empty:
-	// no scopes are special-cased into the auto-approve set anymore.
-	if len(allowSet) != 0 {
-		t.Errorf("expected empty override allow set, got %d entries", len(allowSet))
+	// recommend.allow special-cases scopes absent from scope_priorities.json
+	// (application v7 is not in the platform catalog yet) so interactive
+	// login's "common scopes" tier still offers them. Only the read scope is
+	// admitted: write stays out of the recommended tier by design.
+	if !allowSet["application:app_slash_command:read"] {
+		t.Error("expected application:app_slash_command:read in override allow set")
+	}
+	if allowSet["application:app_slash_command:write"] {
+		t.Error("write scope must NOT be in the recommended tier")
+	}
+	if len(allowSet) != 1 {
+		t.Errorf("expected exactly 1 override allow entry, got %d", len(allowSet))
 	}
 }
 

internal/registry/remote.go

@@ -75,13 +75,7 @@ func remoteMetaURL(version string) string {
 	if testMetaURL != "" {
 		return testMetaURL
 	}
-	var base string
-	switch configuredBrand {
-	case core.BrandLark:
-		base = "https://open.larksuite.com/api/tools/open/api_definition"
-	default:
-		base = "https://open.feishu.cn/api/tools/open/api_definition"
-	}
+	base := core.ResolveEndpoints(configuredBrand).Open + "/api/tools/open/api_definition"
 	q := "protocol=meta&client_version=" + url.QueryEscape(build.Version)
 	if version != "" {
 		q += "&data_version=" + url.QueryEscape(version)

internal/registry/scope_overrides.json

@@ -12,7 +12,9 @@
     "vc:meeting.meetingevent:read": 75
   },
   "recommend": {
-    "allow": [],
+    "allow": [
+      "application:app_slash_command:read"
+    ],
     "deny": [
       "im:chat",
       "im:message.send_as_user"

internal/registry/service_descriptions.json

@@ -3,6 +3,10 @@
     "en": { "title": "Approval", "description": "Approval instance, and task management" },
     "zh": { "title": "审批", "description": "审批实例、审批任务管理" }
   },
+  "application": {
+    "en": { "title": "Application", "description": "Open Platform app self-management: slash commands for the currently bound app" },
+    "zh": { "title": "应用管理", "description": "开放平台应用自管理：当前绑定应用的斜杠指令管理" }
+  },
   "apps": {
     "en": { "title": "Apps", "description": "Develop, deploy HTML, web pages and applications" },
     "zh": { "title": "应用", "description": "开发、部署 HTML、Web 页面和应用" }

internal/selfupdate/updater.go

@@ -16,6 +16,7 @@ import (
 	"strings"
 	"time"
 
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/transport"
 	"github.com/larksuite/cli/internal/vfs"
 )
@@ -49,7 +50,9 @@ const (
 
 var (
 	skillsIndexFetchTimeout = 10 * time.Second
-	officialSkillsIndexURL  = "https://open.feishu.cn/.well-known/skills/index.json"
+	// officialSkillsIndexURL overrides the brand-derived skills index URL in
+	// tests; empty in production.
+	officialSkillsIndexURL = ""
 )
 
 // DetectResult holds installation detection results.
@@ -101,6 +104,9 @@ func (r *NpmResult) CombinedOutput() string {
 // Override DetectOverride / NpmInstallOverride / SkillsCommandOverride / VerifyOverride
 // / RestoreAvailableOverride for testing.
 type Updater struct {
+	// Brand selects the skills index/source endpoints (zero value = feishu).
+	Brand core.LarkBrand
+
 	DetectOverride           func() DetectResult
 	NpmInstallOverride       func(version string) *NpmResult
 	PnpmInstallOverride      func(version string) *NpmResult
@@ -129,6 +135,19 @@ type Updater struct {
 // New creates an Updater with default (real) behavior.
 func New() *Updater { return &Updater{} }
 
+// skillsIndexURL returns the brand's well-known skills index URL.
+func (u *Updater) skillsIndexURL() string {
+	if officialSkillsIndexURL != "" {
+		return officialSkillsIndexURL
+	}
+	return core.ResolveEndpoints(u.Brand).Open + "/.well-known/skills/index.json"
+}
+
+// skillsSource returns the brand's skills source host for `npx skills add`.
+func (u *Updater) skillsSource() string {
+	return core.ResolveEndpoints(u.Brand).Open
+}
+
 // DetectInstallMethod determines how the CLI was installed and whether the
 // owning package manager is available for auto-update.
 func (u *Updater) DetectInstallMethod() DetectResult {
@@ -258,7 +277,7 @@ func (u *Updater) ListOfficialSkillsIndex() *NpmResult {
 	ctx, cancel := context.WithTimeout(context.Background(), skillsIndexFetchTimeout)
 	defer cancel()
 
-	req, err := http.NewRequestWithContext(ctx, http.MethodGet, officialSkillsIndexURL, nil)
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, u.skillsIndexURL(), nil)
 	if err != nil {
 		r.Err = err
 		return r
@@ -297,7 +316,7 @@ func (u *Updater) ListOfficialSkillsIndex() *NpmResult {
 }
 
 func (u *Updater) ListOfficialSkills() *NpmResult {
-	r := u.runSkillsListOfficial("https://open.feishu.cn")
+	r := u.runSkillsListOfficial(u.skillsSource())
 	if r.Err != nil {
 		r = u.runSkillsListOfficial("larksuite/cli")
 	}
@@ -313,7 +332,7 @@ func (u *Updater) ListGlobalSkillsJSON() *NpmResult {
 }
 
 func (u *Updater) InstallSkill(nameList []string) *NpmResult {
-	r := u.runSkillsInstall("https://open.feishu.cn", nameList)
+	r := u.runSkillsInstall(u.skillsSource(), nameList)
 	if r.Err != nil {
 		r = u.runSkillsInstall("larksuite/cli", nameList)
 	}
@@ -321,7 +340,7 @@ func (u *Updater) InstallSkill(nameList []string) *NpmResult {
 }
 
 func (u *Updater) InstallAllSkills() *NpmResult {
-	r := u.runSkillsAdd("https://open.feishu.cn")
+	r := u.runSkillsAdd(u.skillsSource())
 	if r.Err != nil {
 		r = u.runSkillsAdd("larksuite/cli")
 	}

internal/selfupdate/updater_test.go

@@ -17,6 +17,7 @@ import (
 	"testing"
 	"time"
 
+	"github.com/larksuite/cli/internal/core"
 	"github.com/larksuite/cli/internal/vfs"
 )
 
@@ -515,3 +516,23 @@ func TestDetectInstallMethod_Caches(t *testing.T) {
 		t.Errorf("expected cached pnpm result to be returned, got %+v", got)
 	}
 }
+
+func TestSkillsBrandHosts(t *testing.T) {
+	cases := []struct {
+		brand      core.LarkBrand
+		wantIndex  string
+		wantSource string
+	}{
+		{core.BrandFeishu, "https://open.feishu.cn/.well-known/skills/index.json", "https://open.feishu.cn"},
+		{core.BrandLark, "https://open.larksuite.com/.well-known/skills/index.json", "https://open.larksuite.com"},
+	}
+	for _, c := range cases {
+		u := &Updater{Brand: c.brand}
+		if got := u.skillsIndexURL(); got != c.wantIndex {
+			t.Errorf("brand %q: skillsIndexURL = %q, want %q", c.brand, got, c.wantIndex)
+		}
+		if got := u.skillsSource(); got != c.wantSource {
+			t.Errorf("brand %q: skillsSource = %q, want %q", c.brand, got, c.wantSource)
+		}
+	}
+}

internal/vfs/localfileio/path.go

@@ -65,7 +65,7 @@ func safePath(raw, flagName string) (string, error) {
 	}
 
 	if isAbsolutePath(raw) {
-		return "", fmt.Errorf("%s must be a relative path within the current directory, got %q (hint: cd to the target directory first, or use a relative path like ./filename)", flagName, raw)
+		return "", fmt.Errorf("%s must be a relative path within the current directory, got %q (hint: use a relative path like ./filename; flags that support stdin can read an out-of-tree file via '-' instead)", flagName, raw)
 	}
 
 	path := filepath.Clean(raw)

lint/README.md

@@ -30,8 +30,42 @@ lint/
     ├── rule_subtype_classifier.go
     ├── rule_typed_error_completeness.go
     └── *_test.go
+└── domaincontract/     # endpoint domain contract: no hardcoded resolver hosts
+    ├── scan.go         # ScanRepo(root) ([]lintapi.Violation, error)  ← public entry
+    └── scan_test.go
 ```
 
+## Endpoint domain contract (`domaincontract`)
+
+`domaincontract` is a syntax-level regression guard for the resolver-owned
+Open, Accounts, MCP, and AppLink hosts used by the Go CLI. In production `.go`
+files it rejects:
+
+- string literals containing a resolver-owned host FQDN
+  (`{open,accounts,mcp,applink}.{feishu.cn,larksuite.com}`), and
+- direct references to the SDK base-URL globals (`FeishuBaseUrl` / `LarkBaseUrl`)
+  selected off an import of the SDK root package, which pick a host without
+  going through the resolver. Unrelated identifiers sharing the name are not
+  flagged.
+
+Host literals are permitted only inside the resolver's `ResolveEndpoints`
+function body (`internal/core/types.go`) and in this rule's own host list
+(`lint/domaincontract/scan.go`); a helper elsewhere in the resolver file
+returning a hardcoded host is still rejected. Comments and `_test.go` files
+are not scanned. Literals are unquoted before matching (escape sequences
+cannot hide a host) and match case-insensitively, and dot-imports of the SDK
+root package are rejected outright (they would hide the globals from this
+parse-level guard). The forbidden-host list is bound to the resolver source by
+`TestForbiddenHostsMatchResolver`, so adding a resolver domain without updating
+the guard fails the lint module's tests.
+
+This is not a general outbound-URL or data-flow analyzer. It does not inspect
+non-Go assets, hosts assembled from string fragments, SDK constructor option
+flow, or previously unknown Feishu/Lark hosts. The literal rule and code review
+remain the backstop for those cases.
+
+To add or change an outbound endpoint, edit the resolver — never hardcode a host.
+
 ## Running
 
 ```bash
@@ -42,7 +76,7 @@ go run -C lint . ..
 `-C lint` switches Go's working directory to `lint/`; the `..` argument
 is the repo root to scan (relative to `lint/`).
 
-CI: `.github/workflows/ci.yml` step `Run errs/ lint guards (lintcheck)`.
+CI: `.github/workflows/ci.yml` step `Run source-contract lint guards (lintcheck)`.
 
 Exit codes follow `lint/main.go`:
 

lint/domaincontract/enforce_test.go

@@ -0,0 +1,45 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package domaincontract
+
+import (
+	"errors"
+	"os"
+	"os/exec"
+	"strings"
+	"testing"
+)
+
+// TestLintcheckExitCode proves the guard gates CI end to end: a violating
+// fixture must make the lintcheck binary exit 1, and a clean tree exit 0.
+func TestLintcheckExitCode(t *testing.T) {
+	if testing.Short() {
+		t.Skip("compiles the lintcheck binary")
+	}
+	dirty := t.TempDir()
+	writeFile(t, dirty, "internal/x/x.go", "package x\n\nvar h = \"https://open.feishu.cn\"\n")
+
+	run := func(dir string) (string, error) {
+		cmd := exec.Command("go", "run", "..", dir)
+		cmd.Dir = "." // lint/domaincontract — `..` is the lintcheck main package
+		cmd.Env = os.Environ()
+		out, err := cmd.CombinedOutput()
+		return string(out), err
+	}
+
+	out, err := run(dirty)
+	if err == nil || !strings.Contains(out, "no-hardcoded-endpoint") {
+		t.Fatalf("violating fixture: err=%v out=%s (want exit 1 with a no-hardcoded-endpoint REJECT)", err, out)
+	}
+	var exitErr *exec.ExitError
+	if !errors.As(err, &exitErr) || exitErr.ExitCode() != 1 {
+		t.Fatalf("violating fixture exit = %v, want 1", err)
+	}
+
+	clean := t.TempDir()
+	writeFile(t, clean, "internal/x/x.go", "package x\n\nvar ok = 1\n")
+	if out, err := run(clean); err != nil {
+		t.Fatalf("clean fixture: err=%v out=%s (want exit 0)", err, out)
+	}
+}

lint/domaincontract/scan.go

@@ -0,0 +1,190 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package domaincontract guards the Go CLI against direct reuse of the current
+// resolver-owned host FQDNs outside core.ResolveEndpoints.
+package domaincontract
+
+import (
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"io/fs"
+	"path/filepath"
+	"strconv"
+	"strings"
+
+	"github.com/larksuite/cli/lint/lintapi"
+)
+
+// forbiddenHosts are the resolver-owned FQDNs. They may only appear as string
+// literals in the allowlisted resolver source.
+var forbiddenHosts = []string{
+	"open.feishu.cn", "accounts.feishu.cn", "mcp.feishu.cn", "applink.feishu.cn",
+	"open.larksuite.com", "accounts.larksuite.com", "mcp.larksuite.com", "applink.larksuite.com",
+}
+
+// forbiddenIdents are the SDK root package's base-URL globals; referencing
+// them picks a host without the resolver. Matched as selectors on an SDK root
+// import, so unrelated same-name identifiers are not flagged.
+var forbiddenIdents = map[string]bool{
+	"FeishuBaseUrl": true,
+	"LarkBaseUrl":   true,
+}
+
+// sdkModulePrefix identifies imports of the Lark OAPI SDK.
+const sdkModulePrefix = "github.com/larksuite/oapi-sdk-go/"
+
+// sdkImportAliases returns the file's local names for the SDK root package
+// (subpackages do not export the base-URL globals).
+func sdkImportAliases(file *ast.File) map[string]bool {
+	aliases := map[string]bool{}
+	for _, imp := range file.Imports {
+		path, err := strconv.Unquote(imp.Path.Value)
+		if err != nil || !strings.HasPrefix(path, sdkModulePrefix) {
+			continue
+		}
+		if strings.Contains(strings.TrimPrefix(path, sdkModulePrefix), "/") {
+			continue // subpackage, not the root
+		}
+		name := "lark" // the SDK root package's package name
+		if imp.Name != nil {
+			name = imp.Name.Name
+		}
+		aliases[name] = true
+	}
+	return aliases
+}
+
+// allowlist holds the only file allowed to carry the literals wholesale:
+// this rule's own host list. The resolver file is scoped per-function instead
+// (see resolverPath).
+var allowlist = map[string]bool{
+	filepath.FromSlash("lint/domaincontract/scan.go"): true,
+}
+
+// resolverPath is the resolver source; host literals are permitted only
+// inside its ResolveEndpoints function body.
+var resolverPath = filepath.FromSlash("internal/core/types.go")
+
+func skipDir(name string) bool {
+	switch name {
+	case "vendor", "testdata", "node_modules", ".git", ".claude":
+		return true
+	}
+	return false
+}
+
+// ScanRepo walks production .go files under root and flags string literals
+// containing a forbidden resolver host outside the allowlist. Comments and
+// _test.go files are not scanned.
+func ScanRepo(root string) ([]lintapi.Violation, error) {
+	var out []lintapi.Violation
+	err := filepath.WalkDir(root, func(path string, d fs.DirEntry, err error) error {
+		if err != nil {
+			return err
+		}
+		if d.IsDir() {
+			if skipDir(d.Name()) {
+				return filepath.SkipDir
+			}
+			return nil
+		}
+		if !strings.HasSuffix(path, ".go") || strings.HasSuffix(path, "_test.go") {
+			return nil
+		}
+		rel, relErr := filepath.Rel(root, path)
+		if relErr == nil && allowlist[rel] {
+			return nil
+		}
+		fset := token.NewFileSet()
+		file, perr := parser.ParseFile(fset, path, nil, 0)
+		if perr != nil {
+			return nil // unparseable file: not our concern
+		}
+		display := path
+		if relErr == nil {
+			display = rel
+		}
+		var allowedFrom, allowedTo token.Pos
+		if relErr == nil && rel == resolverPath {
+			for _, d := range file.Decls {
+				if fd, ok := d.(*ast.FuncDecl); ok && fd.Recv == nil && fd.Name.Name == "ResolveEndpoints" && fd.Body != nil {
+					allowedFrom, allowedTo = fd.Body.Pos(), fd.Body.End()
+					break
+				}
+			}
+		}
+		inResolverBody := func(p token.Pos) bool {
+			return allowedFrom != token.NoPos && p >= allowedFrom && p <= allowedTo
+		}
+		// Dot-imports of the SDK root would hide its globals from this
+		// parse-level guard, so the import form itself is rejected.
+		for _, imp := range file.Imports {
+			path, uerr := strconv.Unquote(imp.Path.Value)
+			if uerr != nil || imp.Name == nil || imp.Name.Name != "." {
+				continue
+			}
+			if strings.HasPrefix(path, sdkModulePrefix) &&
+				!strings.Contains(strings.TrimPrefix(path, sdkModulePrefix), "/") {
+				pos := fset.Position(imp.Pos())
+				out = append(out, lintapi.Violation{
+					Rule:       "no-hardcoded-endpoint",
+					Action:     lintapi.ActionReject,
+					File:       display,
+					Line:       pos.Line,
+					Message:    "dot-import of the SDK root package defeats the endpoint guard",
+					Suggestion: "import the SDK with a package name",
+				})
+			}
+		}
+		sdkAliases := sdkImportAliases(file)
+		ast.Inspect(file, func(n ast.Node) bool {
+			switch node := n.(type) {
+			case *ast.SelectorExpr:
+				pkg, ok := node.X.(*ast.Ident)
+				if ok && pkg.Obj == nil && forbiddenIdents[node.Sel.Name] && sdkAliases[pkg.Name] {
+					pos := fset.Position(node.Pos())
+					out = append(out, lintapi.Violation{
+						Rule:       "no-hardcoded-endpoint",
+						Action:     lintapi.ActionReject,
+						File:       display,
+						Line:       pos.Line,
+						Message:    "SDK base-URL global " + pkg.Name + "." + node.Sel.Name + " bypasses the resolver — use core.ResolveEndpoints",
+						Suggestion: "derive the host from core.ResolveEndpoints(brand) instead of the SDK global",
+					})
+				}
+			case *ast.BasicLit:
+				if node.Kind != token.STRING {
+					return true
+				}
+				if inResolverBody(node.Pos()) {
+					return true
+				}
+				// Unquote and lowercase so escapes or casing cannot hide a host.
+				value := node.Value
+				if v, err := strconv.Unquote(value); err == nil {
+					value = v
+				}
+				lower := strings.ToLower(value)
+				for _, host := range forbiddenHosts {
+					if strings.Contains(lower, host) {
+						pos := fset.Position(node.Pos())
+						out = append(out, lintapi.Violation{
+							Rule:       "no-hardcoded-endpoint",
+							Action:     lintapi.ActionReject,
+							File:       display,
+							Line:       pos.Line,
+							Message:    "hardcoded resolver host " + host + " — outbound domains must come from core.ResolveEndpoints",
+							Suggestion: "use core.ResolveEndpoints(brand) instead of a literal host",
+						})
+						return true
+					}
+				}
+			}
+			return true
+		})
+		return nil
+	})
+	return out, err
+}

lint/domaincontract/scan_test.go

@@ -0,0 +1,231 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package domaincontract
+
+import (
+	"go/ast"
+	"go/parser"
+	"go/token"
+	"net/url"
+	"os"
+	"path/filepath"
+	"strconv"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/lint/lintapi"
+)
+
+// requireEnforced pins every violation to the rejecting rule: a regression
+// that downgrades the guard to an advisory action must fail here.
+func requireEnforced(t *testing.T, vs []lintapi.Violation) {
+	t.Helper()
+	for _, v := range vs {
+		if v.Rule != "no-hardcoded-endpoint" || v.Action != lintapi.ActionReject {
+			t.Fatalf("violation not CI-enforced: rule=%q action=%q (%s:%d)", v.Rule, v.Action, v.File, v.Line)
+		}
+	}
+}
+
+func writeFile(t *testing.T, root, rel, content string) {
+	t.Helper()
+	p := filepath.Join(root, rel)
+	if err := os.MkdirAll(filepath.Dir(p), 0o755); err != nil {
+		t.Fatal(err)
+	}
+	if err := os.WriteFile(p, []byte(content), 0o644); err != nil {
+		t.Fatal(err)
+	}
+}
+
+func TestScanRepo(t *testing.T) {
+	root := t.TempDir()
+	// Negative: the resolver may hold the literals inside ResolveEndpoints.
+	writeFile(t, root, "internal/core/types.go", "package core\n\nfunc ResolveEndpoints(b string) string {\n\treturn \"https://open.feishu.cn\"\n}\n")
+	// Negative: non-resolver hosts + a comment reference must not trip the guard.
+	writeFile(t, root, "shortcuts/x/display.go", "package x\n\n// see https://open.feishu.cn/document/foo\nvar h = \"https://www.feishu.cn\"\nvar e = \"https://example.feishu.cn\"\nvar r = \"https://registry.npmjs.org/pkg\"\n")
+	// Negative: _test.go files may assert literals.
+	writeFile(t, root, "internal/y/y_test.go", "package y\n\nvar w = \"https://open.larksuite.com\"\n")
+	// Positive: production literal outside the allowlist.
+	writeFile(t, root, "internal/z/z.go", "package z\n\nvar bad = \"https://accounts.larksuite.com/oauth\"\n")
+
+	vs, err := ScanRepo(root)
+	if err != nil {
+		t.Fatal(err)
+	}
+	requireEnforced(t, vs)
+	if len(vs) != 1 {
+		t.Fatalf("got %d violations, want 1: %+v", len(vs), vs)
+	}
+	if filepath.Base(vs[0].File) != "z.go" {
+		t.Errorf("violation in %q, want z.go", vs[0].File)
+	}
+}
+
+// SDK base-URL globals are rejected only when selected off an SDK root
+// import; same-name identifiers elsewhere pass.
+func TestScanRepoSDKConstants(t *testing.T) {
+	root := t.TempDir()
+	// Positive: default and renamed imports of the SDK root package.
+	writeFile(t, root, "shortcuts/x/ws.go",
+		"package x\n\nimport \"github.com/larksuite/oapi-sdk-go/v3\"\n\nvar d = lark.FeishuBaseUrl\n")
+	writeFile(t, root, "shortcuts/x/ws2.go",
+		"package x\n\nimport sdk \"github.com/larksuite/oapi-sdk-go/v3\"\n\nvar e = sdk.LarkBaseUrl\n")
+	// Negative: test file may reference the globals.
+	writeFile(t, root, "shortcuts/x/ws_test.go",
+		"package x\n\nimport lark \"github.com/larksuite/oapi-sdk-go/v3\"\n\nvar p = lark.LarkBaseUrl\n")
+	// Negative: same-name local identifier without the SDK import.
+	writeFile(t, root, "shortcuts/y/local.go",
+		"package y\n\nvar FeishuBaseUrl = \"local\"\nvar q = FeishuBaseUrl\n")
+	// Negative: same-name symbol from an unrelated package.
+	writeFile(t, root, "shortcuts/z/other.go",
+		"package z\n\nimport other \"example.com/other\"\n\nvar r = other.FeishuBaseUrl\n")
+	// Negative: SDK subpackage import does not export the globals.
+	writeFile(t, root, "shortcuts/w/sub.go",
+		"package w\n\nimport larkws \"github.com/larksuite/oapi-sdk-go/v3/ws\"\n\nvar s = larkws.FeishuBaseUrl\n")
+	// Negative: a local value shadowing the SDK import alias is not the package.
+	writeFile(t, root, "shortcuts/v/shadow.go",
+		"package v\n\nimport lark \"github.com/larksuite/oapi-sdk-go/v3\"\n\ntype endpoint struct { FeishuBaseUrl string }\nvar _ *lark.Client\nfunc local() string { lark := endpoint{}; return lark.FeishuBaseUrl }\n")
+
+	vs, err := ScanRepo(root)
+	if err != nil {
+		t.Fatal(err)
+	}
+	requireEnforced(t, vs)
+	if len(vs) != 2 {
+		t.Fatalf("got %d violations, want 2: %+v", len(vs), vs)
+	}
+	files := map[string]bool{}
+	for _, v := range vs {
+		files[filepath.Base(v.File)] = true
+	}
+	if !files["ws.go"] || !files["ws2.go"] {
+		t.Errorf("violations in %v, want ws.go and ws2.go", files)
+	}
+}
+
+// forbiddenHosts must equal the https hosts in the resolver source, both ways;
+// a resolver domain change without a guard update fails here.
+func TestForbiddenHostsMatchResolver(t *testing.T) {
+	src := filepath.Join("..", "..", "internal", "core", "types.go")
+	fset := token.NewFileSet()
+	file, err := parser.ParseFile(fset, src, nil, 0)
+	if err != nil {
+		t.Fatalf("parse resolver source: %v", err)
+	}
+	// Walk only the receiverless ResolveEndpoints body — the same scope the
+	// production scanner exempts — so unrelated URLs in the file cannot skew
+	// the parity check.
+	var resolverBody ast.Node
+	for _, d := range file.Decls {
+		if fd, ok := d.(*ast.FuncDecl); ok && fd.Recv == nil && fd.Name.Name == "ResolveEndpoints" && fd.Body != nil {
+			resolverBody = fd.Body
+			break
+		}
+	}
+	if resolverBody == nil {
+		t.Fatal("ResolveEndpoints function not found in resolver source")
+	}
+	resolverHosts := map[string]bool{}
+	ast.Inspect(resolverBody, func(n ast.Node) bool {
+		lit, ok := n.(*ast.BasicLit)
+		if !ok || lit.Kind != token.STRING {
+			return true
+		}
+		v, err := strconv.Unquote(lit.Value)
+		if err != nil || !strings.HasPrefix(v, "https://") {
+			return true
+		}
+		// Parse instead of prefix-stripping so a resolver URL that ever gains a
+		// path component still compares by bare host against forbiddenHosts.
+		u, err := url.Parse(v)
+		if err != nil || u.Host == "" {
+			return true
+		}
+		resolverHosts[u.Host] = true
+		return true
+	})
+
+	guardHosts := map[string]bool{}
+	for _, h := range forbiddenHosts {
+		guardHosts[h] = true
+	}
+	for h := range resolverHosts {
+		if !guardHosts[h] {
+			t.Errorf("resolver host %q is not in the guard's forbidden list", h)
+		}
+	}
+	for h := range guardHosts {
+		if !resolverHosts[h] {
+			t.Errorf("guard forbids %q which the resolver does not define", h)
+		}
+	}
+}
+
+// Dot-import rejection and case-insensitive literal matching.
+func TestScanRepoDotImportAndCase(t *testing.T) {
+	root := t.TempDir()
+	// Positive: dot-import of the SDK root package.
+	writeFile(t, root, "shortcuts/a/dot.go",
+		"package a\n\nimport . \"github.com/larksuite/oapi-sdk-go/v3\"\n\nvar d = FeishuBaseUrl\n")
+	// Positive: uppercase host literal.
+	writeFile(t, root, "shortcuts/b/upper.go",
+		"package b\n\nvar u = \"https://OPEN.FEISHU.CN/api\"\n")
+	// Negative: dot-import of an SDK subpackage is out of the globals' scope.
+	writeFile(t, root, "shortcuts/c/sub.go",
+		"package c\n\nimport . \"github.com/larksuite/oapi-sdk-go/v3/ws\"\n\nvar s = 1\n")
+
+	vs, err := ScanRepo(root)
+	if err != nil {
+		t.Fatal(err)
+	}
+	requireEnforced(t, vs)
+	if len(vs) != 2 {
+		t.Fatalf("got %d violations, want 2: %+v", len(vs), vs)
+	}
+	files := map[string]bool{}
+	for _, v := range vs {
+		files[filepath.Base(v.File)] = true
+	}
+	if !files["dot.go"] || !files["upper.go"] {
+		t.Errorf("violations in %v, want dot.go and upper.go", files)
+	}
+}
+
+// The resolver file is scoped per-function: a hardcoded host outside the
+// ResolveEndpoints body is rejected.
+func TestScanRepoResolverFunctionScope(t *testing.T) {
+	root := t.TempDir()
+	writeFile(t, root, "internal/core/types.go",
+		"package core\n\nfunc ResolveEndpoints(b string) string {\n\treturn \"https://open.feishu.cn\"\n}\n\nfunc bypass() string { return \"https://open.feishu.cn\" }\n\ntype localResolver struct{}\nfunc (localResolver) ResolveEndpoints() string { return \"https://open.feishu.cn\" }\n")
+
+	vs, err := ScanRepo(root)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(vs) != 2 {
+		t.Fatalf("got %d violations, want 2 (helper and receiver method): %+v", len(vs), vs)
+	}
+	for _, v := range vs {
+		if filepath.Base(v.File) != "types.go" {
+			t.Errorf("violation in %q, want types.go", v.File)
+		}
+	}
+}
+
+// Escape sequences cannot hide a host: literals are unquoted before matching.
+func TestScanRepoEscapedLiteral(t *testing.T) {
+	root := t.TempDir()
+	writeFile(t, root, "internal/e/e.go",
+		"package e\n\nvar h = \"https://open.feishu\\u002ecn\"\n")
+
+	vs, err := ScanRepo(root)
+	if err != nil {
+		t.Fatal(err)
+	}
+	requireEnforced(t, vs)
+	if len(vs) != 1 {
+		t.Fatalf("got %d violations, want 1: %+v", len(vs), vs)
+	}
+}

lint/main.go

@@ -1,10 +1,9 @@
 // Copyright (c) 2026 Lark Technologies Pte. Ltd.
 // SPDX-License-Identifier: MIT
 
-// Command lintcheck runs the source-level errs/ contract guards (all four checks).
-// The fifth contract rule (business path must use typed errors) lives in
-// .golangci.yml as a forbidigo entry; the four checks here are AST-level
-// guards that golangci-lint cannot express.
+// Command lintcheck runs repository source-contract guards that golangci-lint
+// cannot express directly. It currently covers typed-error contracts and the
+// resolver-owned endpoint contract.
 //
 // lintcheck lives in its own Go module under lint/ so its build-time
 // dependency on golang.org/x/tools/go/packages does not leak into the
@@ -30,6 +29,7 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/larksuite/cli/lint/domaincontract"
 	"github.com/larksuite/cli/lint/errscontract"
 	"github.com/larksuite/cli/lint/lintapi"
 )
@@ -43,6 +43,9 @@ type scanner struct {
 
 var scanners = []scanner{
 	{name: "errscontract", fn: errscontract.ScanRepoWithOptions},
+	{name: "domaincontract", fn: func(root string, _ errscontract.ScanOptions) ([]lintapi.Violation, error) {
+		return domaincontract.ScanRepo(root)
+	}},
 }
 
 func main() {

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@larksuite/cli",
-  "version": "1.0.67",
+  "version": "1.0.69",
   "description": "The official CLI for Lark/Feishu open platform",
   "bin": {
     "lark-cli": "scripts/run.js"

shortcuts/application/shortcuts.go

@@ -0,0 +1,18 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+// Package application provides shortcuts for Open Platform app
+// self-management (slash commands of the current bound app).
+package application
+
+import "github.com/larksuite/cli/shortcuts/common"
+
+// Shortcuts returns all shortcuts of the application domain.
+func Shortcuts() []common.Shortcut {
+	return []common.Shortcut{
+		SlashCommandList,
+		SlashCommandCreate,
+		SlashCommandUpdate,
+		SlashCommandDelete,
+	}
+}

shortcuts/application/slash_command_common.go

@@ -0,0 +1,105 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/validate"
+)
+
+// slashCommandBasePath is the raw v7 endpoint (not in meta_data.json / SDK).
+const slashCommandBasePath = "/open-apis/application/v7/app_slash_commands"
+
+// clientCacheHint is printed to stderr after every successful write.
+const clientCacheHint = "note: changes take ~5 minutes to appear in Feishu clients (client-side cache); the server state is already updated - list reflects it immediately."
+
+// parseDescriptionI18n parses repeated --description-i18n values ("<lang>=<text>",
+// split on the FIRST '='). Returns nil for empty input. Duplicate langs rejected.
+func parseDescriptionI18n(values []string) (map[string]string, error) {
+	if len(values) == 0 {
+		return nil, nil
+	}
+	m := make(map[string]string, len(values))
+	for _, v := range values {
+		idx := strings.Index(v, "=")
+		if idx <= 0 || idx == len(v)-1 {
+			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"invalid --description-i18n value %q: expected <lang>=<text> (e.g. zh_cn=你好)", v).
+				WithParam("--description-i18n")
+		}
+		lang := strings.TrimSpace(v[:idx])
+		text := v[idx+1:]
+		if lang == "" || strings.TrimSpace(text) == "" {
+			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"invalid --description-i18n value %q: language and text must be non-empty", v).
+				WithParam("--description-i18n")
+		}
+		if _, dup := m[lang]; dup {
+			return nil, errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"duplicate language %q in --description-i18n", lang).
+				WithParam("--description-i18n")
+		}
+		m[lang] = text
+	}
+	return m, nil
+}
+
+// validateCommandName rejects empty and slash-prefixed command names.
+func validateCommandName(name, flagName string) error {
+	trimmed := strings.TrimSpace(name)
+	if trimmed == "" {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"%s must not be empty", flagName).WithParam(flagName)
+	}
+	if strings.HasPrefix(trimmed, "/") {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"%s must not start with \"/\" - the slash is implied (use %q)",
+			flagName, strings.TrimPrefix(trimmed, "/")).WithParam(flagName)
+	}
+	return nil
+}
+
+// encodeCommandIDPathSegment applies the same normalization and escaping to
+// command IDs in dry-run output and real requests.
+func encodeCommandIDPathSegment(id string) string {
+	return validate.EncodePathSegment(strings.TrimSpace(id))
+}
+
+// buildSlashCommandBody assembles a create/update request body. Only provided
+// fields are included: PATCH is field-level partial (absent top-level fields
+// are preserved server-side; a provided i18n map REPLACES the whole map).
+// icon sits at the top level, sibling of description (verified live; the
+// official create sample nesting icon inside description is a doc bug).
+func buildSlashCommandBody(command, description string, i18n map[string]string, iconKey string) map[string]interface{} {
+	body := map[string]interface{}{}
+	if command != "" {
+		body["command"] = command
+	}
+	if description != "" || len(i18n) > 0 {
+		desc := map[string]interface{}{}
+		if description != "" {
+			desc["default_value"] = description
+		}
+		if len(i18n) > 0 {
+			desc["i18n"] = i18n
+		}
+		body["description"] = desc
+	}
+	if iconKey != "" {
+		body["icon"] = map[string]interface{}{"icon_key": iconKey}
+	}
+	return body
+}
+
+// isCommandExists reports whether err is the server-side name-collision error
+// (code=40000000, message contains "command already exists"; verified live).
+func isCommandExists(err error) bool {
+	p, ok := errs.ProblemOf(err)
+	if !ok {
+		return false
+	}
+	return p.Code == 40000000 && strings.Contains(p.Message, "command already exists")
+}

shortcuts/application/slash_command_common_test.go

@@ -0,0 +1,197 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"errors"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+func TestParseDescriptionI18n_OK(t *testing.T) {
+	m, err := parseDescriptionI18n([]string{"zh_cn=你好", "en_us=Hello=World"})
+	if err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if m["zh_cn"] != "你好" {
+		t.Errorf("zh_cn = %q", m["zh_cn"])
+	}
+	// 只按首个 = 分割：值内可含 =
+	if m["en_us"] != "Hello=World" {
+		t.Errorf("en_us = %q", m["en_us"])
+	}
+}
+
+func TestParseDescriptionI18n_Empty(t *testing.T) {
+	m, err := parseDescriptionI18n(nil)
+	if err != nil || m != nil {
+		t.Fatalf("nil input: m=%v err=%v", m, err)
+	}
+}
+
+func TestParseDescriptionI18n_BadFormat(t *testing.T) {
+	for _, bad := range []string{"zh_cn", "=text", "zh_cn=", "  =x"} {
+		_, err := parseDescriptionI18n([]string{bad})
+		if err == nil {
+			t.Errorf("%q: expected error", bad)
+			continue
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok || p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeInvalidArgument {
+			t.Errorf("%q: expected validation problem, got %v", bad, err)
+		}
+	}
+}
+
+func TestParseDescriptionI18n_DuplicateLang(t *testing.T) {
+	_, err := parseDescriptionI18n([]string{"zh_cn=a", "zh_cn=b"})
+	if err == nil {
+		t.Fatal("expected duplicate language error")
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok || p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeInvalidArgument {
+		t.Fatalf("expected validation/invalid_argument, got %v", err)
+	}
+	var validationErr *errs.ValidationError
+	if !errors.As(err, &validationErr) || validationErr.Param != "--description-i18n" {
+		t.Fatalf("expected param --description-i18n, got %#v", validationErr)
+	}
+}
+
+func TestValidateCommandName(t *testing.T) {
+	if err := validateCommandName("greet", "--command"); err != nil {
+		t.Fatalf("greet: %v", err)
+	}
+	for _, bad := range []string{"", "  ", "/greet"} {
+		if err := validateCommandName(bad, "--command"); err == nil {
+			t.Errorf("%q: expected error", bad)
+		}
+	}
+}
+
+func TestBuildSlashCommandBody(t *testing.T) {
+	body := buildSlashCommandBody("greet", "hi", map[string]string{"zh_cn": "你好"}, "skill_outlined")
+	if body["command"] != "greet" {
+		t.Errorf("command = %v", body["command"])
+	}
+	desc := body["description"].(map[string]interface{})
+	if desc["default_value"] != "hi" {
+		t.Errorf("default_value = %v", desc["default_value"])
+	}
+	if desc["i18n"].(map[string]string)["zh_cn"] != "你好" {
+		t.Errorf("i18n = %v", desc["i18n"])
+	}
+	// icon 与 description 顶层平级（实测钉死，文档 create 示例是笔误）
+	if body["icon"].(map[string]interface{})["icon_key"] != "skill_outlined" {
+		t.Errorf("icon = %v", body["icon"])
+	}
+	// partial：不提供的字段不出现（PATCH 语义依赖）
+	partial := buildSlashCommandBody("", "", nil, "skill_outlined")
+	if _, has := partial["command"]; has {
+		t.Error("empty command must be omitted")
+	}
+	if _, has := partial["description"]; has {
+		t.Error("empty description must be omitted")
+	}
+}
+
+func TestIsCommandExists(t *testing.T) {
+	tests := []struct {
+		name string
+		err  error
+		want bool
+	}{
+		{
+			name: "matching code and message",
+			err: errs.NewAPIError(errs.SubtypeUnknown,
+				"Invalid Param 'command'. command already exists.").WithCode(40000000),
+			want: true,
+		},
+		{
+			name: "same message with different code",
+			err: errs.NewAPIError(errs.SubtypeUnknown,
+				"Invalid Param 'command'. command already exists.").WithCode(40000031),
+		},
+		{
+			name: "same code with different message",
+			err: errs.NewAPIError(errs.SubtypeUnknown,
+				"Invalid Param 'icon_key'. icon_key is invalid.").WithCode(40000000),
+		},
+		{name: "nil error"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			if got := isCommandExists(tt.err); got != tt.want {
+				t.Fatalf("isCommandExists() = %v, want %v", got, tt.want)
+			}
+		})
+	}
+}
+
+// TestSlashCommandShortcuts_SharedScopesAcrossIdentities locks in the
+// reversal of the OAuth-isolation design: all four slash-command shortcuts
+// declare identical scopes for the bot and user identities (plain Scopes /
+// ConditionalScopes, no per-identity overrides), so a user-identity
+// pre-flight sees the same scope set a bot identity would.
+func TestSlashCommandShortcuts_SharedScopesAcrossIdentities(t *testing.T) {
+	cases := []struct {
+		name            string
+		shortcut        common.Shortcut
+		wantScope       string
+		wantConditional string
+		hasConditional  bool
+	}{
+		{
+			name:      "list",
+			shortcut:  SlashCommandList,
+			wantScope: "application:app_slash_command:read",
+		},
+		{
+			name:            "create",
+			shortcut:        SlashCommandCreate,
+			wantScope:       "application:app_slash_command:write",
+			wantConditional: "application:app_slash_command:read",
+			hasConditional:  true,
+		},
+		{
+			name:            "update",
+			shortcut:        SlashCommandUpdate,
+			wantScope:       "application:app_slash_command:write",
+			wantConditional: "application:app_slash_command:read",
+			hasConditional:  true,
+		},
+		{
+			name:            "delete",
+			shortcut:        SlashCommandDelete,
+			wantScope:       "application:app_slash_command:write",
+			wantConditional: "application:app_slash_command:read",
+			hasConditional:  true,
+		},
+	}
+	for _, tc := range cases {
+		t.Run(tc.name, func(t *testing.T) {
+			for _, identity := range []string{"user", "bot"} {
+				declared := tc.shortcut.DeclaredScopesForIdentity(identity)
+				if !containsStr(declared, tc.wantScope) {
+					t.Errorf("%s: DeclaredScopesForIdentity(%q) = %v, want to contain %q", tc.name, identity, declared, tc.wantScope)
+				}
+				if tc.hasConditional && !containsStr(declared, tc.wantConditional) {
+					t.Errorf("%s: DeclaredScopesForIdentity(%q) = %v, want to contain conditional %q", tc.name, identity, declared, tc.wantConditional)
+				}
+			}
+		})
+	}
+}
+
+func containsStr(list []string, want string) bool {
+	for _, v := range list {
+		if v == want {
+			return true
+		}
+	}
+	return false
+}

shortcuts/application/slash_command_create.go

@@ -0,0 +1,118 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+// SlashCommandCreate registers a new slash command on the current bound app.
+var SlashCommandCreate = common.Shortcut{
+	Service:     "application",
+	Command:     "+slash-command-create",
+	Description: "Register a slash command (/ command) on the current bound Open Platform app; --force converts a name collision into an update (idempotent re-run)",
+	Risk:        "write",
+	Scopes:      []string{"application:app_slash_command:write"},
+	ConditionalScopes: []string{
+		"application:app_slash_command:read", // only the --force collision path lists to resolve the id
+	},
+	AuthTypes: []string{"bot", "user"},
+	Flags: []common.Flag{
+		{Name: "command", Desc: "command name WITHOUT the leading slash (server enforces uniqueness per app; max 100 commands)", Required: true},
+		{Name: "description", Desc: "default description shown in the client command panel (description.default_value)", Required: true},
+		{Name: "description-i18n", Type: "string_array", Desc: "localized description, repeatable, format <lang>=<text> (e.g. zh_cn=发送问候); language codes are passed through to the server"},
+		{Name: "icon-key", Desc: "icon key (server default: skill_outlined; invalid keys are rejected server-side with code 40000031)"},
+		{Name: "force", Type: "bool", Desc: "on name collision, resolve the existing command by name and update it in place"},
+	},
+	Tips: []string{
+		`lark-cli application +slash-command-create --command greet --description "say hi" --description-i18n zh_cn=问候 --as bot`,
+		"changes take ~5 minutes to appear in clients (client-side cache); the server updates immediately",
+		"user identity needs explicit authorization first: lark-cli auth login --scope application:app_slash_command:write",
+	},
+	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		if err := validateCommandName(runtime.Str("command"), "--command"); err != nil {
+			return err
+		}
+		if len(strings.TrimSpace(runtime.Str("description"))) == 0 {
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"--description must not be blank").WithParam("--description")
+		}
+		if _, err := parseDescriptionI18n(runtime.StrArray("description-i18n")); err != nil {
+			return err
+		}
+		return nil
+	},
+	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
+		i18n, err := parseDescriptionI18n(runtime.StrArray("description-i18n"))
+		if err != nil {
+			// The CLI validates first; keep this guard for direct DryRun callers.
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		name := strings.TrimSpace(runtime.Str("command"))
+		body := buildSlashCommandBody(name, runtime.Str("description"), i18n, runtime.Str("icon-key"))
+		d := common.NewDryRunAPI().
+			Desc("Create a slash command on the current bound app").
+			POST(slashCommandBasePath).
+			Body(body)
+		if runtime.Bool("force") {
+			d.Desc("--force: on 'command already exists' (code 40000000), GET list to resolve command_id then PATCH the same body")
+		}
+		return d
+	},
+	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		name := strings.TrimSpace(runtime.Str("command"))
+		i18n, err := parseDescriptionI18n(runtime.StrArray("description-i18n"))
+		if err != nil {
+			return err
+		}
+		body := buildSlashCommandBody(name, runtime.Str("description"), i18n, runtime.Str("icon-key"))
+
+		data, err := runtime.CallAPITyped("POST", slashCommandBasePath, nil, body)
+		action := "created"
+		if err != nil {
+			if !isCommandExists(err) {
+				return err
+			}
+			if !runtime.Bool("force") {
+				p, _ := errs.ProblemOf(err)
+				rewrapped := errs.NewAPIError(errs.SubtypeAlreadyExists, "slash command %q already exists", name).
+					WithHint("rerun with --force to update it, or use `lark-cli application +slash-command-update --command %q`", name).
+					WithCause(err)
+				if p.Code != 0 {
+					rewrapped = rewrapped.WithCode(p.Code)
+				}
+				if p.LogID != "" {
+					rewrapped = rewrapped.WithLogID(p.LogID)
+				}
+				return rewrapped
+			}
+			// --force: name collision -> resolve id -> PATCH (idempotent re-run).
+			id, rerr := resolveCommandID(runtime, name)
+			if rerr != nil {
+				return rerr
+			}
+			patchBody := buildSlashCommandBody("", runtime.Str("description"), i18n, runtime.Str("icon-key"))
+			data, err = runtime.CallAPITyped("PATCH", slashCommandBasePath+"/"+encodeCommandIDPathSegment(id), nil, patchBody)
+			if err != nil {
+				return err
+			}
+			action = "updated"
+		}
+		if data == nil {
+			data = map[string]interface{}{}
+		}
+		data["action"] = action
+		fmt.Fprintln(runtime.IO().ErrOut, clientCacheHint)
+		runtime.OutFormat(data, nil, func(w io.Writer) {
+			fmt.Fprintf(w, "%s /%v (command_id: %v)\n", action, data["command"], data["command_id"])
+		})
+		return nil
+	},
+}

shortcuts/application/slash_command_create_test.go

@@ -0,0 +1,229 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"encoding/json"
+	"errors"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+)
+
+func createOKStub() *httpmock.Stub {
+	return &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/application/v7/app_slash_commands",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "success",
+			"data": sampleItem("greet", "id-new"),
+		},
+	}
+}
+
+func createConflictStub() *httpmock.Stub {
+	return &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/application/v7/app_slash_commands",
+		Body: map[string]interface{}{
+			"code": 40000000, "msg": "Invalid Param 'command'. command already exists.",
+		},
+	}
+}
+
+func patchOKStub(id string) *httpmock.Stub {
+	return &httpmock.Stub{
+		Method: "PATCH",
+		URL:    "/open-apis/application/v7/app_slash_commands/" + id,
+		Body: map[string]interface{}{
+			"code": 0, "msg": "success",
+			"data": sampleItem("greet", id),
+		},
+	}
+}
+
+func TestSlashCommandCreate_OK(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(createOKStub())
+
+	err := mountAndRun(t, SlashCommandCreate, []string{"+slash-command-create",
+		"--command", "greet", "--description", "hi",
+		"--description-i18n", "zh_cn=你好", "--description-i18n", "en_us=Hello",
+		"--icon-key", "skill_outlined", "--format", "json", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v\n%s", err, stdout.String())
+	}
+	data := got["data"].(map[string]interface{})
+	if data["action"] != "created" {
+		t.Fatalf("action = %v", data["action"])
+	}
+	if data["command_id"] != "id-new" {
+		t.Fatalf("command_id = %v", data["command_id"])
+	}
+}
+
+func TestSlashCommandCreate_ValidateRejects(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	cases := [][]string{
+		{"+slash-command-create", "--command", "/greet", "--description", "hi", "--as", "bot"},
+		{"+slash-command-create", "--command", "greet", "--description", "hi", "--description-i18n", "bad", "--as", "bot"},
+		{"+slash-command-create", "--command", "greet", "--description", "hi", "--description-i18n", "zh_cn=a", "--description-i18n", "zh_cn=b", "--as", "bot"},
+		{"+slash-command-create", "--command", "greet", "--description", "  ", "--as", "bot"},
+	}
+	for i, args := range cases {
+		err := mountAndRun(t, SlashCommandCreate, args, f, stdout)
+		if err == nil {
+			t.Errorf("case %d: expected validation error", i)
+			continue
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok || p.Category != errs.CategoryValidation {
+			t.Errorf("case %d: expected validation problem, got %v", i, err)
+		}
+	}
+}
+
+func TestSlashCommandCreate_ConflictNoForce(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(createConflictStub())
+
+	err := mountAndRun(t, SlashCommandCreate, []string{"+slash-command-create",
+		"--command", "greet", "--description", "hi", "--as", "bot"}, f, stdout)
+	if err == nil {
+		t.Fatal("expected conflict error")
+	}
+	p, _ := errs.ProblemOf(err)
+	if p == nil || p.Category != errs.CategoryAPI || p.Subtype != errs.SubtypeAlreadyExists || p.Code != 40000000 {
+		t.Fatalf("expected api/already_exists code 40000000, got %#v", p)
+	}
+	if !strings.Contains(p.Hint, "--force") || !strings.Contains(p.Hint, "+slash-command-update") {
+		t.Fatalf("hint must offer --force and update, got %q", p.Hint)
+	}
+	var apiErr *errs.APIError
+	if !errors.As(err, &apiErr) {
+		t.Fatalf("rewrapped error must be *errs.APIError, got %T", err)
+	}
+	if errors.Unwrap(apiErr) == nil {
+		t.Fatal("rewrapped conflict error must preserve the original cause via WithCause")
+	}
+}
+
+func TestSlashCommandCreate_ForceConvertsToUpdate(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(createConflictStub())
+	reg.Register(listStub([]interface{}{sampleItem("greet", "id-exist")}))
+	reg.Register(patchOKStub("id-exist"))
+
+	err := mountAndRun(t, SlashCommandCreate, []string{"+slash-command-create",
+		"--command", "greet", "--description", "hi2", "--force", "--format", "json", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	data := got["data"].(map[string]interface{})
+	if data["action"] != "updated" {
+		t.Fatalf("action = %v (force must convert to update)", data["action"])
+	}
+}
+
+func TestSlashCommandCreate_TrimsCommandBeforeCreateAndForceResolution(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	conflict := createConflictStub()
+	reg.Register(conflict)
+	reg.Register(listStub([]interface{}{sampleItem("greet", "id-exist")}))
+	reg.Register(patchOKStub("id-exist"))
+
+	err := mountAndRun(t, SlashCommandCreate, []string{"+slash-command-create",
+		"--command", " greet ", "--description", "hi", "--force", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var body map[string]interface{}
+	if err := json.Unmarshal(conflict.CapturedBody, &body); err != nil {
+		t.Fatalf("decode captured create body: %v", err)
+	}
+	if body["command"] != "greet" {
+		t.Fatalf("command = %q, want trimmed value %q", body["command"], "greet")
+	}
+}
+
+func createIconInvalidStub() *httpmock.Stub {
+	return &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/application/v7/app_slash_commands",
+		Body: map[string]interface{}{
+			"code": 40000031, "msg": "Invalid Param 'icon_key'. icon_key is invalid.",
+		},
+	}
+}
+
+// TestSlashCommandCreate_ForceDoesNotConvertNonConflict guards against --force
+// blindly treating ANY POST failure as a name collision: only the
+// "command already exists" (40000000) shape may fall through to the
+// GET+PATCH idempotent-update path. No PATCH stub is registered here, so if
+// the code mistakenly attempted a PATCH, the httpmock registry would fail
+// the unexpected request and surface a different (registry) error instead
+// of the original icon_key failure asserted below.
+func TestSlashCommandCreate_ForceDoesNotConvertNonConflict(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(createIconInvalidStub())
+
+	err := mountAndRun(t, SlashCommandCreate, []string{"+slash-command-create",
+		"--command", "greet", "--description", "hi", "--icon-key", "bogus", "--force", "--as", "bot"}, f, stdout)
+	if err == nil {
+		t.Fatal("expected the original icon_key error, got nil")
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok || p.Category != errs.CategoryAPI || p.Subtype == errs.SubtypeAlreadyExists || p.Code != 40000031 {
+		t.Fatalf("expected original API error code 40000031 without collision reclassification, got %#v", p)
+	}
+}
+
+func TestSlashCommandCreate_DryRun(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	if err := mountAndRun(t, SlashCommandCreate, []string{"+slash-command-create",
+		"--command", "greet", "--description", "hi", "--icon-key", "skill_outlined", "--dry-run", "--as", "bot"}, f, stdout); err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "POST") || !strings.Contains(out, slashCommandBasePath) {
+		t.Fatalf("dry-run must show POST path: %s", out)
+	}
+	// icon 顶层：dry-run body 里 icon 不嵌套在 description 内
+	if !strings.Contains(out, "icon_key") {
+		t.Fatalf("dry-run must include body: %s", out)
+	}
+}
+
+func TestSlashCommandCreate_ForceHelpHasNoMetavar(t *testing.T) {
+	parent := &cobra.Command{Use: "application"}
+	SlashCommandCreate.Mount(parent, &cmdutil.Factory{})
+	cmd := parent.Commands()[0]
+	forceFlag := cmd.Flags().Lookup("force")
+	if forceFlag == nil {
+		t.Fatal("missing --force flag")
+	}
+	placeholder, usage := pflag.UnquoteUsage(forceFlag)
+	if placeholder != "" {
+		t.Fatalf("boolean --force must not render a value placeholder, got %q", placeholder)
+	}
+	if !strings.Contains(usage, "update it in place") || strings.Contains(usage, "gh ") {
+		t.Fatalf("unexpected --force help: %q", usage)
+	}
+	if help := cmd.Flags().FlagUsages(); !strings.Contains(help, "--force") || !strings.Contains(help, "update it in place") {
+		t.Fatalf("rendered help missing --force description:\n%s", help)
+	}
+}

shortcuts/application/slash_command_delete.go

@@ -0,0 +1,85 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+// SlashCommandDelete removes a slash command (irreversible; command_id is not
+// reused - recreating the same name yields a NEW id).
+var SlashCommandDelete = common.Shortcut{
+	Service:     "application",
+	Command:     "+slash-command-delete",
+	Description: "Delete a slash command from the current bound app (high-risk: irreversible; recreating the same name yields a new command_id)",
+	Risk:        "high-risk-write",
+	Scopes:      []string{"application:app_slash_command:write"},
+	ConditionalScopes: []string{
+		"application:app_slash_command:read", // only the --command by-name path
+	},
+	AuthTypes: []string{"bot", "user"},
+	Flags: []common.Flag{
+		{Name: "command-id", Desc: "target command_id; mutually exclusive with --command"},
+		{Name: "command", Desc: "target command name WITHOUT leading slash (resolved via live list, needs read scope); mutually exclusive with --command-id"},
+	},
+	Tips: []string{
+		"lark-cli application +slash-command-delete --command greet --yes --as bot",
+		"deleted commands may linger in clients for ~5 minutes (client cache)",
+	},
+	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		id := strings.TrimSpace(runtime.Str("command-id"))
+		name := strings.TrimSpace(runtime.Str("command"))
+		if (id == "") == (name == "") {
+			return errs.NewValidationError(errs.SubtypeInvalidArgument,
+				"provide exactly one of --command-id or --command").WithParam("--command-id")
+		}
+		if name != "" {
+			return validateCommandName(name, "--command")
+		}
+		return nil
+	},
+	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
+		d := common.NewDryRunAPI().Desc("HIGH-RISK: delete a slash command (irreversible; same-name recreate gets a NEW command_id)")
+		target := strings.TrimSpace(runtime.Str("command-id"))
+		if target == "" {
+			name := strings.TrimSpace(runtime.Str("command"))
+			d.GET(slashCommandBasePath).
+				Desc(fmt.Sprintf("resolve command_id by name %q via GET list first", name))
+			target = "<resolved_command_id>"
+		} else {
+			target = encodeCommandIDPathSegment(target)
+		}
+		return d.DELETE(slashCommandBasePath + "/" + target)
+	},
+	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		id := strings.TrimSpace(runtime.Str("command-id"))
+		name := strings.TrimSpace(runtime.Str("command"))
+		if id == "" {
+			resolved, err := resolveCommandID(runtime, name)
+			if err != nil {
+				return err
+			}
+			id = resolved
+		}
+		if _, err := runtime.CallAPITyped("DELETE", slashCommandBasePath+"/"+encodeCommandIDPathSegment(id), nil, nil); err != nil {
+			return err
+		}
+		out := map[string]interface{}{"action": "deleted", "command_id": id}
+		if name != "" {
+			out["command"] = name
+		}
+		fmt.Fprintln(runtime.IO().ErrOut, clientCacheHint)
+		fmt.Fprintln(runtime.IO().ErrOut, "note: recreating the same command name will yield a NEW command_id.")
+		runtime.OutFormat(out, nil, func(w io.Writer) {
+			fmt.Fprintf(w, "deleted command_id %s\n", id)
+		})
+		return nil
+	},
+}

shortcuts/application/slash_command_delete_test.go

@@ -0,0 +1,135 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/httpmock"
+)
+
+func deleteOKStub(id string) *httpmock.Stub {
+	return &httpmock.Stub{
+		Method: "DELETE",
+		URL:    slashCommandBasePath + "/" + id,
+		Body:   map[string]interface{}{"code": 0, "msg": "success", "data": map[string]interface{}{}},
+	}
+}
+
+func TestSlashCommandDelete_RequiresYes(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	err := mountAndRun(t, SlashCommandDelete, []string{"+slash-command-delete",
+		"--command-id", "id1", "--as", "bot"}, f, stdout)
+	if err == nil {
+		t.Fatal("expected confirmation_required without --yes")
+	}
+	if errs.CategoryOf(err) != errs.CategoryConfirmation {
+		t.Fatalf("expected confirmation category, got %v (%v)", errs.CategoryOf(err), err)
+	}
+}
+
+func TestSlashCommandDelete_ByIDWithYes(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(deleteOKStub("id1"))
+
+	err := mountAndRun(t, SlashCommandDelete, []string{"+slash-command-delete",
+		"--command-id", "id1", "--yes", "--format", "json", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	data := got["data"].(map[string]interface{})
+	// 上游 DELETE 返回空对象；CLI 必须补 action/command_id（写操作返回资源 ID）
+	if data["action"] != "deleted" || data["command_id"] != "id1" {
+		t.Fatalf("data = %v", data)
+	}
+}
+
+func TestSlashCommandDelete_ByNameWithYes(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(listStub([]interface{}{sampleItem("greet", "id7")}))
+	reg.Register(deleteOKStub("id7"))
+
+	err := mountAndRun(t, SlashCommandDelete, []string{"+slash-command-delete",
+		"--command", "greet", "--yes", "--format", "json", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	data := got["data"].(map[string]interface{})
+	if data["command"] != "greet" || data["command_id"] != "id7" {
+		t.Fatalf("data = %v", data)
+	}
+}
+
+func TestSlashCommandDelete_ByNameDryRun(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+
+	err := mountAndRun(t, SlashCommandDelete, []string{"+slash-command-delete",
+		"--command", "greet", "--dry-run", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var envlp struct {
+		Data struct {
+			Description string `json:"description"`
+			API         []struct {
+				Desc   string `json:"desc"`
+				Method string `json:"method"`
+			} `json:"api"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(stdout.Bytes(), &envlp); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	got := envlp.Data
+	if !strings.Contains(got.Description, "HIGH-RISK") || strings.Contains(got.Description, "resolve command_id") {
+		t.Fatalf("top-level description must contain only the risk context: %q", got.Description)
+	}
+	if len(got.API) != 2 || got.API[0].Method != "GET" || !strings.Contains(got.API[0].Desc, "resolve command_id") {
+		t.Fatalf("first call must describe name resolution: %#v", got.API)
+	}
+	if got.API[1].Method != "DELETE" || strings.Contains(got.API[1].Desc, "resolve command_id") {
+		t.Fatalf("second call must be the delete without the resolve description: %#v", got.API)
+	}
+}
+
+func TestSlashCommandDelete_Validate(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	for _, args := range [][]string{
+		{"+slash-command-delete", "--yes", "--as", "bot"},
+		{"+slash-command-delete", "--command-id", "id1", "--command", "greet", "--yes", "--as", "bot"},
+	} {
+		err := mountAndRun(t, SlashCommandDelete, args, f, stdout)
+		if err == nil {
+			t.Errorf("%v: expected validation error", args)
+			continue
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok || p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeInvalidArgument {
+			t.Errorf("%v: expected validation problem, got %v", args, err)
+		}
+	}
+}
+
+func TestSlashCommandDelete_ByIDEncodesTrimmedPathSegment(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(deleteOKStub("id%2Fwith%20space%3Fx"))
+
+	err := mountAndRun(t, SlashCommandDelete, []string{"+slash-command-delete",
+		"--command-id", " id/with space?x ", "--yes", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+}

shortcuts/application/slash_command_list.go

@@ -0,0 +1,58 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"context"
+	"fmt"
+	"io"
+
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+// SlashCommandList lists all slash commands of the current bound app.
+var SlashCommandList = common.Shortcut{
+	Service:     "application",
+	Command:     "+slash-command-list",
+	Description: "List all slash commands (/ commands) registered on the currently bound Open Platform app; source of command_id for update/delete",
+	Risk:        "read",
+	Scopes:      []string{"application:app_slash_command:read"},
+	AuthTypes:   []string{"bot", "user"},
+	Tips: []string{
+		"lark-cli application +slash-command-list --as bot",
+		"user identity needs explicit authorization first: lark-cli auth login --scope application:app_slash_command:read",
+		"the upstream API returns all commands at once (max 100 per app, no pagination)",
+	},
+	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
+		return common.NewDryRunAPI().
+			Desc("List all slash commands of the current bound app (read-only)").
+			GET(slashCommandBasePath)
+	},
+	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		data, err := runtime.CallAPITyped("GET", slashCommandBasePath, nil, nil)
+		if err != nil {
+			return err
+		}
+		items, _ := data["items"].([]interface{})
+		if items == nil {
+			items = []interface{}{}
+		}
+		out := map[string]interface{}{"items": items, "count": len(items)}
+		runtime.OutFormat(out, nil, func(w io.Writer) {
+			fmt.Fprintf(w, "%d slash command(s)\n", len(items))
+			for _, it := range items {
+				m, ok := it.(map[string]interface{})
+				if !ok {
+					continue
+				}
+				desc := ""
+				if d, ok := m["description"].(map[string]interface{}); ok {
+					desc, _ = d["default_value"].(string)
+				}
+				fmt.Fprintf(w, "  /%v\t%v\t%s\n", m["command"], m["command_id"], desc)
+			}
+		})
+		return nil
+	},
+}

shortcuts/application/slash_command_list_test.go

@@ -0,0 +1,115 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"bytes"
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/internal/cmdutil"
+	"github.com/larksuite/cli/internal/core"
+	"github.com/larksuite/cli/internal/httpmock"
+	"github.com/larksuite/cli/shortcuts/common"
+	"github.com/spf13/cobra"
+)
+
+func appTestConfig() *core.CliConfig {
+	return &core.CliConfig{AppID: "test-app", AppSecret: "test-secret", Brand: core.BrandFeishu}
+}
+
+// mountAndRun mounts the shortcut under a parent cobra command and runs it.
+// Mirrors shortcuts/contact tests.
+func mountAndRun(t *testing.T, s common.Shortcut, args []string, f *cmdutil.Factory, stdout *bytes.Buffer) error {
+	t.Helper()
+	parent := &cobra.Command{Use: "application"}
+	s.Mount(parent, f)
+	parent.SetArgs(args)
+	parent.SilenceErrors = true
+	parent.SilenceUsage = true
+	if stdout != nil {
+		stdout.Reset()
+	}
+	return parent.Execute()
+}
+
+func listStub(items []interface{}) *httpmock.Stub {
+	return &httpmock.Stub{
+		Method: "GET",
+		URL:    "/open-apis/application/v7/app_slash_commands",
+		Body: map[string]interface{}{
+			"code": 0, "msg": "success",
+			"data": map[string]interface{}{"items": items},
+		},
+	}
+}
+
+func sampleItem(name, id string) map[string]interface{} {
+	return map[string]interface{}{
+		"command": name, "command_id": id,
+		"create_time": "1783318553", "update_time": "1783318553",
+		"description": map[string]interface{}{"default_value": "desc of " + name},
+		"icon":        map[string]interface{}{"icon_key": "skill_outlined"},
+	}
+}
+
+func TestSlashCommandList_JSON(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(listStub([]interface{}{sampleItem("greet", "id1"), sampleItem("weather", "id2")}))
+
+	if err := mountAndRun(t, SlashCommandList, []string{"+slash-command-list", "--format", "json", "--as", "bot"}, f, stdout); err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v\n%s", err, stdout.String())
+	}
+	data := got["data"].(map[string]interface{})
+	items := data["items"].([]interface{})
+	if len(items) != 2 {
+		t.Fatalf("items = %d", len(items))
+	}
+	if data["count"] != float64(2) {
+		t.Fatalf("count = %v", data["count"])
+	}
+	first := items[0].(map[string]interface{})
+	for _, k := range []string{"command", "command_id", "description", "icon", "create_time", "update_time"} {
+		if _, ok := first[k]; !ok {
+			t.Errorf("missing item key %q", k)
+		}
+	}
+}
+
+func TestSlashCommandList_Empty(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(listStub(nil))
+
+	if err := mountAndRun(t, SlashCommandList, []string{"+slash-command-list", "--format", "json", "--as", "bot"}, f, stdout); err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	data := got["data"].(map[string]interface{})
+	items, ok := data["items"].([]interface{})
+	if !ok || len(items) != 0 {
+		t.Fatalf("empty list must be [] not %v", data["items"])
+	}
+	if data["count"] != float64(0) {
+		t.Fatalf("count = %v", data["count"])
+	}
+}
+
+func TestSlashCommandList_DryRun(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	if err := mountAndRun(t, SlashCommandList, []string{"+slash-command-list", "--dry-run", "--as", "bot"}, f, stdout); err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	out := stdout.String()
+	if !strings.Contains(out, "/open-apis/application/v7/app_slash_commands") || !strings.Contains(out, "GET") {
+		t.Fatalf("dry-run must show GET path, got %s", out)
+	}
+}

shortcuts/application/slash_command_resolve.go

@@ -0,0 +1,54 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+// matchCommandID finds the command_id of the item whose "command" equals
+// name (exact match - the server enforces name uniqueness, so first hit is the
+// only hit).
+func matchCommandID(items []interface{}, name string) string {
+	for _, it := range items {
+		m, ok := it.(map[string]interface{})
+		if !ok {
+			continue
+		}
+		if m["command"] == name {
+			id, _ := m["command_id"].(string)
+			if id != "" {
+				return id
+			}
+		}
+	}
+	return ""
+}
+
+// commandNotFoundError reports a resolution miss against the live list as an
+// API-category not-found error (the name is a valid argument shape; the
+// resource simply does not exist server-side - this is not a validation
+// failure of caller input).
+func commandNotFoundError(name string) error {
+	return errs.NewAPIError(errs.SubtypeNotFound,
+		"slash command %q not found in the current bound app", name).
+		WithHint("run `lark-cli application +slash-command-list` to see registered commands")
+}
+
+// resolveCommandID resolves a command name to its command_id via the live
+// list endpoint (in-memory only; never touches local files). Requires the
+// read scope on the current identity.
+func resolveCommandID(runtime *common.RuntimeContext, name string) (string, error) {
+	data, err := runtime.CallAPITyped("GET", slashCommandBasePath, nil, nil)
+	if err != nil {
+		return "", err
+	}
+	items, _ := data["items"].([]interface{})
+	id := matchCommandID(items, name)
+	if id == "" {
+		return "", commandNotFoundError(name)
+	}
+	return id, nil
+}

shortcuts/application/slash_command_resolve_test.go

@@ -0,0 +1,41 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+)
+
+func TestMatchCommandID(t *testing.T) {
+	items := []interface{}{
+		sampleItem("greet", "id1"),
+		sampleItem("weather", "id2"),
+	}
+	id := matchCommandID(items, "weather")
+	if id != "id2" {
+		t.Fatalf("got id=%q", id)
+	}
+	id = matchCommandID(items, "nope")
+	if id != "" {
+		t.Fatalf("miss should return empty, got id=%q", id)
+	}
+	// 精确匹配：大小写与空白不做宽容
+	id = matchCommandID(items, "Greet")
+	if id != "" {
+		t.Fatalf("match must be exact, got %q", id)
+	}
+}
+
+func TestResolveNotFoundErrorShape(t *testing.T) {
+	err := commandNotFoundError("nope")
+	if err == nil {
+		t.Fatalf("err = %v", err)
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok || p.Category != errs.CategoryAPI || p.Subtype != errs.SubtypeNotFound {
+		t.Fatalf("expected api/not_found, got %#v", p)
+	}
+}

shortcuts/application/slash_command_update.go

@@ -0,0 +1,124 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"context"
+	"fmt"
+	"io"
+	"strings"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/shortcuts/common"
+)
+
+// validateUpdateTarget enforces: exactly one of --command-id/--command, and at
+// least one editable field; --description-i18n requires --description (PATCH
+// replaces the whole description object - sending i18n alone would drop
+// default_value, so both values must be provided together).
+func validateUpdateTarget(runtime *common.RuntimeContext) error {
+	id := strings.TrimSpace(runtime.Str("command-id"))
+	name := strings.TrimSpace(runtime.Str("command"))
+	if (id == "") == (name == "") {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"provide exactly one of --command-id or --command").WithParam("--command-id")
+	}
+	if name != "" {
+		if err := validateCommandName(name, "--command"); err != nil {
+			return err
+		}
+	}
+	hasDesc := strings.TrimSpace(runtime.Str("description")) != ""
+	hasI18n := len(runtime.StrArray("description-i18n")) > 0
+	hasIcon := strings.TrimSpace(runtime.Str("icon-key")) != ""
+	if !hasDesc && !hasI18n && !hasIcon {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"provide at least one of --description / --description-i18n / --icon-key").WithParam("--description")
+	}
+	if hasI18n && !hasDesc {
+		return errs.NewValidationError(errs.SubtypeInvalidArgument,
+			"--description-i18n requires --description: PATCH replaces the whole description object, so default_value must be provided together").WithParam("--description-i18n")
+	}
+	if _, err := parseDescriptionI18n(runtime.StrArray("description-i18n")); err != nil {
+		return err
+	}
+	return nil
+}
+
+// SlashCommandUpdate updates description/i18n/icon of an existing slash command.
+var SlashCommandUpdate = common.Shortcut{
+	Service:     "application",
+	Command:     "+slash-command-update",
+	Description: "Update description / localized descriptions / icon of a slash command on the current bound app, addressed by --command-id or by name via --command",
+	Risk:        "write",
+	Scopes:      []string{"application:app_slash_command:write"},
+	ConditionalScopes: []string{
+		"application:app_slash_command:read", // only the --command by-name path lists to resolve the id
+	},
+	AuthTypes: []string{"bot", "user"},
+	Flags: []common.Flag{
+		{Name: "command-id", Desc: "target command_id (from +slash-command-list or create output); mutually exclusive with --command"},
+		{Name: "command", Desc: "target command name WITHOUT leading slash; resolved via live list (needs read scope); mutually exclusive with --command-id"},
+		{Name: "description", Desc: "new default description (description.default_value)"},
+		{Name: "description-i18n", Type: "string_array", Desc: "localized description, repeatable <lang>=<text>; REPLACES the whole i18n map (missing languages are dropped); requires --description"},
+		{Name: "icon-key", Desc: "new icon key (invalid keys rejected server-side with code 40000031)"},
+	},
+	Tips: []string{
+		`lark-cli application +slash-command-update --command greet --description "new text" --as bot`,
+		"PATCH is field-level partial: fields you do not pass are preserved server-side",
+		"the command NAME itself cannot be changed (API limitation): rename = delete + create (new command_id)",
+	},
+	Validate: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		return validateUpdateTarget(runtime)
+	},
+	DryRun: func(ctx context.Context, runtime *common.RuntimeContext) *common.DryRunAPI {
+		i18n, err := parseDescriptionI18n(runtime.StrArray("description-i18n"))
+		if err != nil {
+			// The CLI validates first; keep this guard for direct DryRun callers.
+			return common.NewDryRunAPI().Set("error", err.Error())
+		}
+		body := buildSlashCommandBody("", runtime.Str("description"), i18n, runtime.Str("icon-key"))
+		d := common.NewDryRunAPI()
+		target := strings.TrimSpace(runtime.Str("command-id"))
+		if target == "" {
+			name := strings.TrimSpace(runtime.Str("command"))
+			d.GET(slashCommandBasePath).
+				Desc(fmt.Sprintf("resolve command_id by name %q via GET list first", name))
+			target = "<resolved_command_id>"
+		} else {
+			target = encodeCommandIDPathSegment(target)
+		}
+		return d.PATCH(slashCommandBasePath + "/" + target).
+			Desc("Update a slash command by command_id").
+			Body(body)
+	},
+	Execute: func(ctx context.Context, runtime *common.RuntimeContext) error {
+		id := strings.TrimSpace(runtime.Str("command-id"))
+		if id == "" {
+			resolved, err := resolveCommandID(runtime, strings.TrimSpace(runtime.Str("command")))
+			if err != nil {
+				return err
+			}
+			id = resolved
+		}
+		i18n, err := parseDescriptionI18n(runtime.StrArray("description-i18n"))
+		if err != nil {
+			return err
+		}
+		body := buildSlashCommandBody("", runtime.Str("description"), i18n, runtime.Str("icon-key"))
+		data, err := runtime.CallAPITyped("PATCH", slashCommandBasePath+"/"+encodeCommandIDPathSegment(id), nil, body)
+		if err != nil {
+			return err
+		}
+		if data == nil {
+			data = map[string]interface{}{}
+		}
+		data["action"] = "updated"
+		fmt.Fprintln(runtime.IO().ErrOut, clientCacheHint)
+		runtime.OutFormat(data, nil, func(w io.Writer) {
+			fmt.Fprintf(w, "updated /%v (command_id: %v)\n", data["command"], data["command_id"])
+		})
+		return nil
+	},
+}

shortcuts/application/slash_command_update_test.go

@@ -0,0 +1,150 @@
+// Copyright (c) 2026 Lark Technologies Pte. Ltd.
+// SPDX-License-Identifier: MIT
+
+package application
+
+import (
+	"encoding/json"
+	"strings"
+	"testing"
+
+	"github.com/larksuite/cli/errs"
+	"github.com/larksuite/cli/internal/cmdutil"
+)
+
+func TestSlashCommandUpdate_ByID(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(patchOKStub("id1"))
+
+	err := mountAndRun(t, SlashCommandUpdate, []string{"+slash-command-update",
+		"--command-id", "id1", "--description", "new", "--format", "json", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var got map[string]interface{}
+	if err := json.Unmarshal(stdout.Bytes(), &got); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	data := got["data"].(map[string]interface{})
+	if data["action"] != "updated" {
+		t.Fatalf("action = %v", data["action"])
+	}
+}
+
+func TestSlashCommandUpdate_ByName(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(listStub([]interface{}{sampleItem("greet", "id9")}))
+	reg.Register(patchOKStub("id9"))
+
+	err := mountAndRun(t, SlashCommandUpdate, []string{"+slash-command-update",
+		"--command", "greet", "--icon-key", "skill_outlined", "--format", "json", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+}
+
+func TestSlashCommandUpdate_ByNameNotFound(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(listStub(nil))
+
+	err := mountAndRun(t, SlashCommandUpdate, []string{"+slash-command-update",
+		"--command", "nope", "--description", "x", "--as", "bot"}, f, stdout)
+	if err == nil {
+		t.Fatal("expected not-found error")
+	}
+	p, ok := errs.ProblemOf(err)
+	if !ok || p.Category != errs.CategoryAPI || p.Subtype != errs.SubtypeNotFound {
+		t.Fatalf("expected api/not_found, got %#v", p)
+	}
+}
+
+func TestSlashCommandUpdate_Validate(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	cases := []struct {
+		name string
+		args []string
+	}{
+		{"both id and name", []string{"+slash-command-update", "--command-id", "id1", "--command", "greet", "--description", "x", "--as", "bot"}},
+		{"neither id nor name", []string{"+slash-command-update", "--description", "x", "--as", "bot"}},
+		{"no editable field", []string{"+slash-command-update", "--command-id", "id1", "--as", "bot"}},
+		{"i18n without description", []string{"+slash-command-update", "--command-id", "id1", "--description-i18n", "zh_cn=x", "--as", "bot"}},
+	}
+	for _, c := range cases {
+		err := mountAndRun(t, SlashCommandUpdate, c.args, f, stdout)
+		if err == nil {
+			t.Errorf("%s: expected validation error", c.name)
+			continue
+		}
+		p, ok := errs.ProblemOf(err)
+		if !ok || p.Category != errs.CategoryValidation || p.Subtype != errs.SubtypeInvalidArgument {
+			t.Errorf("%s: expected validation problem, got %v", c.name, err)
+		}
+	}
+}
+
+func TestSlashCommandUpdate_ByIDEncodesTrimmedPathSegment(t *testing.T) {
+	f, stdout, _, reg := cmdutil.TestFactory(t, appTestConfig())
+	reg.Register(patchOKStub("id%2Fwith%20space%3Fx"))
+
+	err := mountAndRun(t, SlashCommandUpdate, []string{"+slash-command-update",
+		"--command-id", " id/with space?x ", "--description", "new", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+}
+
+func TestSlashCommandUpdate_ByNameDryRunDescriptions(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	err := mountAndRun(t, SlashCommandUpdate, []string{"+slash-command-update",
+		"--command", " greet ", "--description", "new", "--dry-run", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var envlp struct {
+		Data struct {
+			Description string `json:"description"`
+			API         []struct {
+				Desc   string `json:"desc"`
+				Method string `json:"method"`
+			} `json:"api"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(stdout.Bytes(), &envlp); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	got := envlp.Data
+	if strings.Contains(got.Description, "resolve command_id") {
+		t.Fatalf("resolve description must be attached to GET, not top-level: %q", got.Description)
+	}
+	if len(got.API) != 2 || got.API[0].Method != "GET" || !strings.Contains(got.API[0].Desc, "resolve command_id") {
+		t.Fatalf("first call must describe name resolution: %#v", got.API)
+	}
+	if got.API[1].Method != "PATCH" || !strings.Contains(got.API[1].Desc, "Update a slash command") {
+		t.Fatalf("second call must describe update: %#v", got.API)
+	}
+}
+
+func TestSlashCommandUpdate_ByIDDryRunEncodesTrimmedPathSegment(t *testing.T) {
+	f, stdout, _, _ := cmdutil.TestFactory(t, appTestConfig())
+	err := mountAndRun(t, SlashCommandUpdate, []string{"+slash-command-update",
+		"--command-id", " id/with space?x ", "--description", "new", "--dry-run", "--as", "bot"}, f, stdout)
+	if err != nil {
+		t.Fatalf("execute: %v", err)
+	}
+	var envlp struct {
+		Data struct {
+			API []struct {
+				Desc string `json:"desc"`
+				URL  string `json:"url"`
+			} `json:"api"`
+		} `json:"data"`
+	}
+	if err := json.Unmarshal(stdout.Bytes(), &envlp); err != nil {
+		t.Fatalf("json: %v", err)
+	}
+	got := envlp.Data
+	wantURL := slashCommandBasePath + "/id%2Fwith%20space%3Fx"
+	if len(got.API) != 1 || got.API[0].URL != wantURL || got.API[0].Desc == "" {
+		t.Fatalf("dry-run call = %#v, want encoded URL %q with description", got.API, wantURL)
+	}
+}

shortcuts/apps/apps_analytics_test.go

@@ -23,19 +23,21 @@ func TestAppsAnalyticsList_DryRunUsesNanoseconds(t *testing.T) {
 		t.Fatalf("dry-run err=%v", err)
 	}
 	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-		} `json:"api"`
+		Data struct {
+			API []struct {
+				Method string                 `json:"method"`
+				URL    string                 `json:"url"`
+				Body   map[string]interface{} `json:"body"`
+			} `json:"api"`
+		} `json:"data"`
 	}
 	if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
 		t.Fatalf("decode dry-run: %v\n%s", err, stdout.String())
 	}
-	if env.API[0].Method != "POST" || env.API[0].URL != "/open-apis/spark/v1/apps/app_x/query_analytics_data" {
-		t.Fatalf("method/url = %s %s", env.API[0].Method, env.API[0].URL)
+	if env.Data.API[0].Method != "POST" || env.Data.API[0].URL != "/open-apis/spark/v1/apps/app_x/query_analytics_data" {
+		t.Fatalf("method/url = %s %s", env.Data.API[0].Method, env.Data.API[0].URL)
 	}
-	body := env.API[0].Body
+	body := env.Data.API[0].Body
 	if _, ok := body["start_timestamp_ns"]; !ok {
 		t.Fatalf("analytics dry-run missing start_timestamp_ns: %#v", body)
 	}
@@ -92,14 +94,16 @@ func TestAppsAnalyticsList_PageViewDesktopSeriesSetsDeviceFilter(t *testing.T) {
 				t.Fatalf("dry-run err=%v", err)
 			}
 			var env struct {
-				API []struct {
-					Body map[string]interface{} `json:"body"`
-				} `json:"api"`
+				Data struct {
+					API []struct {
+						Body map[string]interface{} `json:"body"`
+					} `json:"api"`
+				} `json:"data"`
 			}
 			if err := json.Unmarshal(stdout.Bytes(), &env); err != nil {
 				t.Fatalf("decode dry-run: %v\n%s", err, stdout.String())
 			}
-			filter := env.API[0].Body["filter"].(map[string]interface{})
+			filter := env.Data.API[0].Body["filter"].(map[string]interface{})
 			deviceTypes := filter["device_types"].([]interface{})
 			if len(deviceTypes) != 1 || deviceTypes[0] != "desktop" {
 				t.Fatalf("device_types = %#v", deviceTypes)

shortcuts/apps/apps_create.go

@@ -9,6 +9,7 @@ import (
 	"io"
 	"strings"
 
+	"github.com/larksuite/cli/internal/envvars"
 	"github.com/larksuite/cli/shortcuts/common"
 )
 
@@ -61,6 +62,7 @@ func buildAppsCreateBody(rctx *common.RuntimeContext) map[string]interface{} {
 	// --app-type is constrained to the lowercase enum (html / full_stack) by the
 	// flag's Enum, so send it through verbatim. Legacy uppercase compatibility is
 	// a server concern and is intentionally not surfaced by the CLI.
+	agent := envvars.AgentName()
 	body := map[string]interface{}{
 		"name":     strings.TrimSpace(rctx.Str("name")),
 		"app_type": rctx.Str("app-type"),
@@ -71,5 +73,8 @@ func buildAppsCreateBody(rctx *common.RuntimeContext) map[string]interface{} {
 	if icon := strings.TrimSpace(rctx.Str("icon-url")); icon != "" {
 		body["icon_url"] = icon
 	}
+	if agent != "" {
+		body["source_agent"] = agent
+	}
 	return body
 }

shortcuts/apps/apps_create_test.go

@@ -273,3 +273,93 @@ func TestAppsCreate_FullstackDryRun(t *testing.T) {
 		t.Fatalf("dry-run should not contain message: %s", got)
 	}
 }
+
+func TestAppsCreate_WithAgentEnvVar(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_AGENT_NAME", "doubao")
+	factory, stdout, reg := newAppsExecuteFactory(t)
+	stub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/spark/v1/apps",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"app": map[string]interface{}{"app_id": "app_d", "name": "Demo"},
+			},
+		},
+	}
+	reg.Register(stub)
+
+	if err := runAppsShortcut(t, AppsCreate,
+		[]string{"+create", "--name", "Demo", "--app-type", "html", "--as", "user"},
+		factory, stdout); err != nil {
+		t.Fatalf("execute err=%v", err)
+	}
+
+	var sent map[string]interface{}
+	if err := json.Unmarshal(stub.CapturedBody, &sent); err != nil {
+		t.Fatalf("decode body: %v", err)
+	}
+	if sent["source_agent"] != "doubao" {
+		t.Fatalf("body.source_agent = %v, want doubao", sent["source_agent"])
+	}
+}
+
+func TestAppsCreate_WithoutAgentEnvVar(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_AGENT_NAME", "")
+	factory, stdout, reg := newAppsExecuteFactory(t)
+	stub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/spark/v1/apps",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"app": map[string]interface{}{"app_id": "app_d", "name": "Demo"},
+			},
+		},
+	}
+	reg.Register(stub)
+
+	if err := runAppsShortcut(t, AppsCreate,
+		[]string{"+create", "--name", "Demo", "--app-type", "html", "--as", "user"},
+		factory, stdout); err != nil {
+		t.Fatalf("execute err=%v", err)
+	}
+
+	var sent map[string]interface{}
+	if err := json.Unmarshal(stub.CapturedBody, &sent); err != nil {
+		t.Fatalf("decode body: %v", err)
+	}
+	if _, present := sent["source_agent"]; present {
+		t.Fatalf("source_agent should not be present when env var is empty: %v", sent)
+	}
+}
+
+func TestAppsCreate_AgentEnvVarNotSet(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_AGENT_NAME", "")
+	factory, stdout, reg := newAppsExecuteFactory(t)
+	stub := &httpmock.Stub{
+		Method: "POST",
+		URL:    "/open-apis/spark/v1/apps",
+		Body: map[string]interface{}{
+			"code": 0,
+			"data": map[string]interface{}{
+				"app": map[string]interface{}{"app_id": "app_d", "name": "Demo"},
+			},
+		},
+	}
+	reg.Register(stub)
+
+	if err := runAppsShortcut(t, AppsCreate,
+		[]string{"+create", "--name", "Demo", "--app-type", "html", "--as", "user"},
+		factory, stdout); err != nil {
+		t.Fatalf("execute err=%v", err)
+	}
+
+	var sent map[string]interface{}
+	if err := json.Unmarshal(stub.CapturedBody, &sent); err != nil {
+		t.Fatalf("decode body: %v", err)
+	}
+	if _, present := sent["source_agent"]; present {
+		t.Fatalf("source_agent should not be present when env var is unset: %v", sent)
+	}
+}

shortcuts/apps/apps_db_audit_test.go

@@ -101,14 +101,16 @@ func TestAppsDBAuditEnable_DryRunAndSuccess(t *testing.T) {
 		t.Fatalf("dry-run err=%v", err)
 	}
 	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-		} `json:"api"`
+		Data struct {
+			API []struct {
+				Method string                 `json:"method"`
+				URL    string                 `json:"url"`
+				Body   map[string]interface{} `json:"body"`
+			} `json:"api"`
+		} `json:"data"`
 	}
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
-	a := env.API[0]
+	a := env.Data.API[0]
 	if a.Method != "POST" || a.URL != dbAuditSetURL || a.Body["enabled"] != true || a.Body["retention"] != "30d" || a.Body["table"] != "orders" {
 		t.Fatalf("dry-run = %s %s body=%v", a.Method, a.URL, a.Body)
 	}
@@ -136,13 +138,15 @@ func TestAppsDBAuditDisable_DryRunAndSuccess(t *testing.T) {
 		t.Fatalf("dry-run err=%v", err)
 	}
 	var env struct {
-		API []struct {
-			Body map[string]interface{} `json:"body"`
-		} `json:"api"`
+		Data struct {
+			API []struct {
+				Body map[string]interface{} `json:"body"`
+			} `json:"api"`
+		} `json:"data"`
 	}
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
-	if env.API[0].Body["enabled"] != false || env.API[0].Body["table"] != "orders" {
-		t.Fatalf("dry-run body=%v (want enabled:false)", env.API[0].Body)
+	if env.Data.API[0].Body["enabled"] != false || env.Data.API[0].Body["table"] != "orders" {
+		t.Fatalf("dry-run body=%v (want enabled:false)", env.Data.API[0].Body)
 	}
 
 	factory2, stdout2, reg := newAppsExecuteFactory(t)
@@ -178,14 +182,16 @@ func TestAppsDBAuditList_DryRunJoinsTables(t *testing.T) {
 		t.Fatalf("dry-run err=%v", err)
 	}
 	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
+		Data struct {
+			API []struct {
+				Method string                 `json:"method"`
+				URL    string                 `json:"url"`
+				Params map[string]interface{} `json:"params"`
+			} `json:"api"`
+		} `json:"data"`
 	}
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
-	a := env.API[0]
+	a := env.Data.API[0]
 	if a.Method != "GET" || a.URL != dbAuditListURL || a.Params["tables"] != "orders,users" {
 		t.Fatalf("dry-run = %s %s tables=%v", a.Method, a.URL, a.Params["tables"])
 	}

shortcuts/apps/apps_db_changelog_list_test.go

@@ -37,13 +37,7 @@ func TestAppsDBChangelogList_DryRunFiltersAndTimeNormalize(t *testing.T) {
 			"--change-id", "01J", "--since", "2026-01-01", "--page-size", "5", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	a := env.API[0]
 	if a.Method != "GET" || a.URL != dbChangelogURL {

shortcuts/apps/apps_db_data_export_test.go

@@ -71,13 +71,7 @@ func TestAppsDBDataExport_DryRunFormatFromOutput(t *testing.T) {
 		if err := runAppsShortcut(t, AppsDBDataExport, args, factory, stdout); err != nil {
 			t.Fatalf("dry-run err=%v", err)
 		}
-		var env struct {
-			API []struct {
-				Method string                 `json:"method"`
-				URL    string                 `json:"url"`
-				Params map[string]interface{} `json:"params"`
-			} `json:"api"`
-		}
+		var env dryRunAPIEnvelope
 		_ = json.Unmarshal([]byte(stdout.String()), &env)
 		a := env.API[0]
 		if a.Method != "GET" || a.URL != dbDataExportURL {

shortcuts/apps/apps_db_data_import_test.go

@@ -97,14 +97,7 @@ func TestAppsDBDataImport_DryRunMultipartShape(t *testing.T) {
 		[]string{"+db-data-import", "--app-id", "app_x", "--file", "orders.csv", "--environment", "dev", "--dry-run", "--yes", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env 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"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	a := env.API[0]
 	if a.Method != "POST" || a.URL != dbDataImportURL {
@@ -131,12 +124,11 @@ func TestAppsDBDataImport_DryRunOmitsEnvWhenUnset(t *testing.T) {
 		[]string{"+db-data-import", "--app-id", "app_x", "--file", "orders.csv", "--dry-run", "--yes", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
+	if len(env.API) != 1 {
+		t.Fatalf("dry-run API calls = %d, want 1; stdout=%s", len(env.API), stdout.String())
+	}
 	p := env.API[0].Params
 	if _, ok := p["env"]; ok {
 		t.Fatalf("no --environment → env key must be omitted, got params=%v", p)
@@ -174,11 +166,7 @@ func TestAppsDBDataImport_TableDefaultsToFileBasename(t *testing.T) {
 		[]string{"+db-data-import", "--app-id", "app_x", "--file", "customers.json", "--dry-run", "--yes", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	if env.API[0].Params["table"] != "customers" {
 		t.Fatalf("expected table=customers (from file basename) in params, got %v", env.API[0].Params)

shortcuts/apps/apps_db_env_recovery_quota_test.go

@@ -30,13 +30,7 @@ func TestAppsDBEnvDiff_DryRunBody(t *testing.T) {
 		[]string{"+db-env-diff", "--app-id", "app_x", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	a := env.API[0]
 	if a.Method != "POST" || a.URL != dbEnvMigrateURL || a.Body["dry_run"] != true {
@@ -91,11 +85,7 @@ func TestAppsDBEnvMigrate_DryRunBody(t *testing.T) {
 		[]string{"+db-env-migrate", "--app-id", "app_x", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Body map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	if env.API[0].Body["dry_run"] != false {
 		t.Fatalf("dry-run body=%v (want dry_run:false)", env.API[0].Body)
@@ -180,13 +170,7 @@ func TestAppsDBRecoveryDiff_DryRunNormalizesTarget(t *testing.T) {
 		[]string{"+db-recovery-diff", "--app-id", "app_x", "--target", "2026-04-15", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	a := env.API[0]
 	if a.Method != "POST" || a.URL != dbRecoveryURL || a.Body["dry_run"] != true {
@@ -331,14 +315,11 @@ func TestAppsDBQuotaGet_DryRunOmitsEnvWhenUnset(t *testing.T) {
 		[]string{"+db-quota-get", "--app-id", "app_x", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
+	if len(env.API) != 1 {
+		t.Fatalf("dry-run API calls = %d, want 1; stdout=%s", len(env.API), stdout.String())
+	}
 	a := env.API[0]
 	if a.Method != "GET" || a.URL != dbQuotaURL {
 		t.Fatalf("dry-run = %s %s", a.Method, a.URL)

shortcuts/apps/apps_db_execute_test.go

@@ -165,14 +165,7 @@ func TestAppsDBExecute_DryRunSendsTransactionalFalse(t *testing.T) {
 		factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	if err := json.Unmarshal([]byte(stdout.String()), &env); err != nil {
 		t.Fatalf("decode: %v\n%s", err, stdout.String())
 	}
@@ -254,11 +247,7 @@ func TestAppsDBExecute_FileReadsSQLIntoBody(t *testing.T) {
 		factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Body map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	if err := json.Unmarshal([]byte(stdout.String()), &env); err != nil {
 		t.Fatalf("decode: %v\n%s", err, stdout.String())
 	}

shortcuts/apps/apps_db_table_get_test.go

@@ -79,11 +79,7 @@ func TestAppsDBTableGet_NonPrettyFormatsOmitFormatQuery(t *testing.T) {
 			if err := runAppsShortcut(t, AppsDBTableGet, args, factory, stdout); err != nil {
 				t.Fatalf("dry-run err=%v", err)
 			}
-			var env struct {
-				API []struct {
-					Params map[string]interface{} `json:"params"`
-				} `json:"api"`
-			}
+			var env dryRunAPIEnvelope
 			if err := json.Unmarshal([]byte(stdout.String()), &env); err != nil {
 				t.Fatalf("decode: %v", err)
 			}

shortcuts/apps/apps_db_table_list_test.go

@@ -165,13 +165,7 @@ func TestAppsDBTableList_DryRunSendsPaginationAndEnv(t *testing.T) {
 		factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	if err := json.Unmarshal([]byte(stdout.String()), &env); err != nil {
 		t.Fatalf("decode dry-run: %v\n%s", err, stdout.String())
 	}
@@ -196,11 +190,7 @@ func TestAppsDBTableList_DoesNotSendIncludeStatsQuery(t *testing.T) {
 		factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Params map[string]interface{} `json:"params"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	if err := json.Unmarshal([]byte(stdout.String()), &env); err != nil {
 		t.Fatalf("decode: %v", err)
 	}

shortcuts/apps/apps_env_test.go

@@ -149,11 +149,7 @@ func TestAppsEnvVarList_DryRunIncludesScene(t *testing.T) {
 	}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var dryRun struct {
-		API []struct {
-			Body map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var dryRun dryRunAPIEnvelope
 	if err := json.Unmarshal(stdout.Bytes(), &dryRun); err != nil {
 		t.Fatalf("decode dry-run: %v\n%s", err, stdout.String())
 	}
@@ -228,11 +224,7 @@ func TestAppsEnvVarSet_OnlineDryRunDoesNotRequireYes(t *testing.T) {
 			t.Fatalf("dry-run missing %q: %s", want, got)
 		}
 	}
-	var dryRun struct {
-		API []struct {
-			Body map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var dryRun dryRunAPIEnvelope
 	if err := json.Unmarshal([]byte(got), &dryRun); err != nil {
 		t.Fatalf("decode dry-run: %v\n%s", err, got)
 	}
@@ -353,13 +345,7 @@ func TestAppsEnvVarDelete_OnlineDryRunDoesNotRequireYes(t *testing.T) {
 		t.Fatalf("dry-run err=%v", err)
 	}
 
-	var dryRun struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var dryRun dryRunAPIEnvelope
 	got := stdout.String()
 	if err := json.Unmarshal([]byte(got), &dryRun); err != nil {
 		t.Fatalf("decode dry-run: %v\n%s", err, got)

shortcuts/apps/apps_errors.go

@@ -44,8 +44,9 @@ func appsExternalToolError(err error, format string, args ...any) *errs.Internal
 	return errs.NewInternalError(errs.SubtypeExternalTool, format, args...).WithCause(err)
 }
 
-// appsSubprocessEnvelopeError classifies a malformed or failed envelope from a
-// lark-cli subprocess (+git-credential-init / +env-pull) as internal/invalid_response.
+// appsSubprocessEnvelopeError classifies a malformed or unexpected response
+// structure as internal/invalid_response. Used for subprocess envelopes
+// (+git-credential-init / +env-pull) and server responses (e.g. pre_release).
 func appsSubprocessEnvelopeError(format string, args ...any) *errs.InternalError {
 	return errs.NewInternalError(errs.SubtypeInvalidResponse, format, args...)
 }

shortcuts/apps/apps_file_delete_test.go

@@ -48,13 +48,7 @@ func TestAppsFileDelete_DryRunSendsPaths(t *testing.T) {
 		[]string{"+file-delete", "--app-id", "app_x", "--path", "/a.png", "--path", "/b.png", "--yes", "--dry-run", "--as", "user"}, factory, stdout); err != nil {
 		t.Fatalf("dry-run err=%v", err)
 	}
-	var env struct {
-		API []struct {
-			Method string                 `json:"method"`
-			URL    string                 `json:"url"`
-			Body   map[string]interface{} `json:"body"`
-		} `json:"api"`
-	}
+	var env dryRunAPIEnvelope
 	_ = json.Unmarshal([]byte(stdout.String()), &env)
 	a := env.API[0]
 	if a.Method != "POST" || a.URL != fileDeleteURL {