feat: support URL rewriting extensions

cmd/build.go

@@ -269,7 +269,7 @@ func buildInternalWithConfig(ctx context.Context, inv cmdutil.InvocationContext,
 
 	// Root-only usage template (curated Usage synopsis + skills footer); see
 	// rootUsageTemplate.
-	rootCmd.SetUsageTemplate(rootUsageTemplate)
+	rootCmd.SetUsageTemplate(renderRootUsageTemplate(nil))
 
 	// Framework-generated skill pointers read this build's final content and
 	// exact command surface lazily. A second Build therefore cannot rewrite
@@ -374,6 +374,7 @@ func buildInternalWithConfig(ctx context.Context, inv cmdutil.InvocationContext,
 	// mechanically unchanged.
 	var hasConcealedCommands bool
 	runtime.surface, hasConcealedCommands = applyDistributionPresentation(rootCmd, cfg.presentation, denied)
+	rootCmd.SetUsageTemplate(renderRootUsageTemplate(runtime.surface))
 
 	// Resolve skill assets and canonical references before installing hooks.
 	// A declared customization is a build-integrity boundary: failure must

cmd/command_sets_test.go

@@ -15,6 +15,7 @@ import (
 	"github.com/larksuite/cli/errs"
 	"github.com/larksuite/cli/extension/command"
 	"github.com/larksuite/cli/extension/platform"
+	testurlrewrite "github.com/larksuite/cli/internal/testutil/urlrewrite"
 )
 
 type businessArgs struct {
@@ -62,6 +63,12 @@ func TestWithCommandSetsInIsolatedProcesses(t *testing.T) {
 
 func TestFailedBuildDoesNotAffectNextBuild(t *testing.T) {
 	tmpHome(t)
+	testurlrewrite.Register(t, func(rawURL string) string {
+		if rawURL == skillsSetupURL {
+			return "https://mirror.example/skills-help"
+		}
+		return rawURL
+	})
 	platform.ResetForTesting()
 	t.Cleanup(platform.ResetForTesting)
 	platform.Register(&failingPlugin{
@@ -80,6 +87,9 @@ func TestFailedBuildDoesNotAffectNextBuild(t *testing.T) {
 	if findCommand(failed, "im +business-failed-build") == nil || failed.PersistentPreRunE == nil {
 		t.Fatal("failed build did not reach the post-mount plugin guard")
 	}
+	if !strings.Contains(failed.UsageTemplate(), "https://mirror.example/skills-help") {
+		t.Fatal("failed build retained the package-initialized help URL")
+	}
 
 	platform.ResetForTesting()
 	clean := Build(context.Background(), buildInvocationForTest(t), WithoutPlugins(), WithoutStrictMode(), WithoutServiceCommands())

cmd/event/console_url.go

@@ -12,6 +12,7 @@
 
 	"github.com/larksuite/cli/internal/core"
 	eventlib "github.com/larksuite/cli/internal/event"
+	"github.com/larksuite/cli/internal/urlrewrite"
 )
 
 // Landing-page contract for the scan-to-enable deep link, verified against the
@@ -73,13 +74,13 @@
 		return "", err
 	}
 	host := core.ResolveEndpoints(brand).Open
-	return fmt.Sprintf("%s%s?%s=%s&addons=%s", host, addonsLandingPath, addonsClientIDParam, appID, encoded), nil
+	return urlrewrite.Rewrite(fmt.Sprintf("%s%s?%s=%s&addons=%s", host, addonsLandingPath, addonsClientIDParam, appID, encoded)), nil
 }
 
 // consoleLandingURL is the bare landing page (no addons) — fallback when encoding fails.
 func consoleLandingURL(brand core.LarkBrand, appID string) string {
 	host := core.ResolveEndpoints(brand).Open
-	return fmt.Sprintf("%s%s?%s=%s", host, addonsLandingPath, addonsClientIDParam, appID)
+	return urlrewrite.Rewrite(fmt.Sprintf("%s%s?%s=%s", host, addonsLandingPath, addonsClientIDParam, appID))
 }
 
 // addonsHintURL returns the scan URL, degrading to the bare landing page on encode error.

cmd/root_help.go

@@ -4,9 +4,11 @@
 package cmd
 
 import (
+	"fmt"
 	"strings"
 
 	"github.com/larksuite/cli/internal/surface"
+	"github.com/larksuite/cli/internal/urlrewrite"
 )
 
 // rootHelpFragment is one framework-owned root-help fragment. A fragment with
@@ -134,10 +136,14 @@ Additional help topics:{{range .Commands}}{{if .IsAdditionalHelpTopicCommand}}
 Use "{{.CommandPath}} [command] --help" for more information about a command.{{end}}`
 
 // skillsSetupFooter is the root-help pointer at the human one-time skills
-// setup. It is emitted only while skills/read remains referenceable.
+// setup. It is emitted only while skills/read remains referenceable. The URL
+// is CLI-owned presentation text, so it passes through the URL rewrite
+// extension each time the template is rendered.
 const skillsSetupFooter = `{{if not .HasParent}}
 
-Skills setup (one-time, humans): npx skills add larksuite/cli -g -y — https://github.com/larksuite/cli#agent-skills{{end}}`
+Skills setup (one-time, humans): npx skills add larksuite/cli -g -y — %s{{end}}`
+
+const skillsSetupURL = "https://github.com/larksuite/cli#agent-skills"
 
 var rootUsageTemplate = renderRootUsageTemplate(nil)
 
@@ -147,7 +153,7 @@ func renderRootUsageTemplate(plan *surface.Plan) string {
 	b.WriteString(renderRootHelpFragments(rootUsageSynopsis, plan))
 	b.WriteString(rootUsageTemplateSuffix)
 	if plan.CanReference(surface.CommandSkillsRead) {
-		b.WriteString(skillsSetupFooter)
+		fmt.Fprintf(&b, skillsSetupFooter, urlrewrite.Rewrite(skillsSetupURL))
 	}
 	b.WriteByte('\n')
 	return b.String()

cmd/root_test.go

@@ -5,6 +5,7 @@ package cmd
 
 import (
 	"bytes"
+	"context"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -28,6 +29,7 @@ import (
 	"github.com/larksuite/cli/internal/recovery"
 	"github.com/larksuite/cli/internal/registry"
 	"github.com/larksuite/cli/internal/surface"
+	testurlrewrite "github.com/larksuite/cli/internal/testutil/urlrewrite"
 )
 
 // TestPersistentPreRunE_AuthCheckDisabledAnnotations verifies that
@@ -90,6 +92,17 @@ func TestRootLong_AgentSkillsLinkTargetsReadmeSection(t *testing.T) {
 	}
 }
 
+func TestBuildRewritesRootSkillsHelpURLAfterProviderRegistration(t *testing.T) {
+	testurlrewrite.Register(t, func(rawURL string) string {
+		return strings.Replace(rawURL, "github.com", "mirror.example.test", 1)
+	})
+
+	_, root, _ := buildInternal(context.Background(), buildInvocationForTest(t), WithoutPlugins())
+	if got := root.UsageTemplate(); !strings.Contains(got, "https://mirror.example.test/larksuite/cli#agent-skills") {
+		t.Fatalf("root help URL was not rewritten:\n%s", got)
+	}
+}
+
 func TestConfigureFlagCompletions(t *testing.T) {
 	t.Cleanup(func() { cmdutil.SetFlagCompletionsEnabled(false) })
 

cmd/update/update.go

@@ -19,6 +19,7 @@
 	"github.com/larksuite/cli/internal/selfupdate"
 	"github.com/larksuite/cli/internal/skillscheck"
 	"github.com/larksuite/cli/internal/update"
+	"github.com/larksuite/cli/internal/urlrewrite"
 )
 
 const (
@@ -189,6 +190,18 @@
 	return doAutoUpdate(opts, io, cur, latest, detect, updater)
 }
 
+type presentationURLs struct {
+	release   string
+	changelog string
+}
+
+func resolvePresentationURLs(latest string) presentationURLs {
+	return presentationURLs{
+		release:   urlrewrite.Rewrite(releaseURL(latest)),
+		changelog: urlrewrite.Rewrite(changelogURL()),
+	}
+}
+
 // 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.
@@ -230,21 +243,22 @@
 }
 
 func reportCheckResult(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, canAutoUpdate bool) error {
+	urls := resolvePresentationURLs(latest)
 	if opts.JSON {
 		out := map[string]interface{}{
 			"ok": true, "previous_version": cur, "current_version": cur,
 			"latest_version": latest, "action": "update_available",
 			"auto_update": canAutoUpdate,
 			"message":     fmt.Sprintf("lark-cli %s %s %s available", cur, symArrow(), latest),
-			"url":         releaseURL(latest), "changelog": changelogURL(),
+			"url":         urls.release, "changelog": urls.changelog,
 		}
 		applySkillsStatus(out, cur)
 		output.PrintJson(io.Out, out)
 		return nil
 	}
 	fmt.Fprintf(io.ErrOut, "Update available: %s %s %s\n", cur, symArrow(), latest)
-	fmt.Fprintf(io.ErrOut, "  Release:   %s\n", releaseURL(latest))
-	fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", changelogURL())
+	fmt.Fprintf(io.ErrOut, "  Release:   %s\n", urls.release)
+	fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", urls.changelog)
 	if canAutoUpdate {
 		fmt.Fprintf(io.ErrOut, "\nRun `lark-cli update` to install.\n")
 	} else {
@@ -254,14 +268,15 @@
 }
 
 func doManualUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, detect selfupdate.DetectResult, updater *selfupdate.Updater) error {
+	urls := resolvePresentationURLs(latest)
 	skillsResult := runSkillsAndState(updater, io, cur, opts.Force, opts.SkillsLayout)
 	reason := detect.ManualReason()
 	if opts.JSON {
 		out := map[string]interface{}{
 			"ok": true, "previous_version": cur, "latest_version": latest,
 			"action":  "manual_required",
 			"message": fmt.Sprintf("Automatic update unavailable: %s (path: %s)", reason, detect.ResolvedPath),
-			"url":     releaseURL(latest), "changelog": changelogURL(),
+			"url":     urls.release, "changelog": urls.changelog,
 		}
 		applySkillsResult(out, skillsResult)
 		if err := reportSkillsFailureWithFields(opts, io, skillsResult, out); err != nil {
@@ -272,8 +287,8 @@
 	}
 	fmt.Fprintf(io.ErrOut, "Automatic update unavailable: %s (path: %s).\n\n", reason, detect.ResolvedPath)
 	fmt.Fprintf(io.ErrOut, "To update manually, download the latest release:\n")
-	fmt.Fprintf(io.ErrOut, "  Release:   %s\n", releaseURL(latest))
-	fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", changelogURL())
+	fmt.Fprintf(io.ErrOut, "  Release:   %s\n", urls.release)
+	fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", urls.changelog)
 	if detect.Method == selfupdate.InstallPnpm {
 		fmt.Fprintf(io.ErrOut, "\nOr install via pnpm (note: skills will not be synced):\n  pnpm add -g %s@%s\n  pnpm dlx skills add larksuite/cli -y -g   # sync skills separately\n", selfupdate.NpmPackage, latest)
 	} else {
@@ -287,6 +302,7 @@
 }
 
 func doAutoUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, detect selfupdate.DetectResult, updater *selfupdate.Updater) error {
+	urls := resolvePresentationURLs(latest)
 	pm := "npm"
 	install := updater.RunNpmInstall
 	if detect.Method == selfupdate.InstallPnpm {
@@ -308,12 +324,13 @@
 	if npmResult.Err != nil {
 		restore()
 		combined := npmResult.CombinedOutput()
+		hint := permissionHint(combined, pm)
 		if opts.JSON {
 			output.PrintJson(io.Out, map[string]interface{}{
 				"ok": false, "error": map[string]interface{}{
 					"type": "update_error", "message": fmt.Sprintf("%s install failed: %s", pm, npmResult.Err),
 					"detail": selfupdate.Truncate(combined, maxNpmOutput),
-					"hint":   permissionHint(combined, pm),
+					"hint":   hint,
 				},
 			})
 			return output.ErrBare(output.ExitAPI)
@@ -325,7 +342,7 @@
 			fmt.Fprint(io.ErrOut, npmResult.Stderr.String())
 		}
 		fmt.Fprintf(io.ErrOut, "\n%s Update failed: %s\n", symFail(), npmResult.Err)
-		if hint := permissionHint(combined, pm); hint != "" {
+		if hint != "" {
 			fmt.Fprintf(io.ErrOut, "  %s\n", hint)
 		}
 		return output.ErrBare(output.ExitAPI)
@@ -355,12 +372,12 @@
 			"previous_version": cur, "current_version": latest,
 			"latest_version": latest, "action": "updated",
 			"message": fmt.Sprintf("lark-cli updated from %s to %s, but skills update failed", cur, latest),
-			"url":     releaseURL(latest), "changelog": changelogURL(),
+			"url":     urls.release, "changelog": urls.changelog,
 		}
 		applySkillsResult(fields, skillsResult)
 		if !opts.JSON {
 			fmt.Fprintf(io.ErrOut, "\n%s lark-cli binary updated from %s to %s\n", symOK(), cur, latest)
-			fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", changelogURL())
+			fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", urls.changelog)
 		}
 		return reportSkillsFailureWithFields(opts, io, skillsResult, fields)
 	}
@@ -370,15 +387,15 @@
 			"ok": true, "previous_version": cur, "current_version": latest,
 			"latest_version": latest, "action": "updated",
 			"message": fmt.Sprintf("lark-cli updated from %s to %s", cur, latest),
-			"url":     releaseURL(latest), "changelog": changelogURL(),
+			"url":     urls.release, "changelog": urls.changelog,
 		}
 		applySkillsResult(result, skillsResult)
 		output.PrintJson(io.Out, result)
 		return nil
 	}
 
 	fmt.Fprintf(io.ErrOut, "\n%s Successfully updated lark-cli from %s to %s\n", symOK(), cur, latest)
-	fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", changelogURL())
+	fmt.Fprintf(io.ErrOut, "  Changelog: %s\n", urls.changelog)
 	if skillsResult != nil {
 		skillsPM := "npx"
 		if detect.Method == selfupdate.InstallPnpm && detect.PnpmAvailable {
@@ -395,19 +412,20 @@
 		return ""
 	}
 	if pm == "pnpm" {
-		return "Permission denied. Ensure your pnpm global directory is writable — re-run `pnpm setup`, or see https://pnpm.io/pnpm-cli"
+		return "Permission denied. Ensure your pnpm global directory is writable — re-run `pnpm setup`, or see " + urlrewrite.Rewrite("https://pnpm.io/pnpm-cli")
 	}
-	return "Permission denied. Try: sudo lark-cli update, or adjust your npm global prefix: https://docs.npmjs.com/resolving-eacces-permissions-errors"
+	return "Permission denied. Try: sudo lark-cli update, or adjust your npm global prefix: " + urlrewrite.Rewrite("https://docs.npmjs.com/resolving-eacces-permissions-errors")
 }
 
 func verificationFailureHint(updater *selfupdate.Updater, latest, pm string) string {
 	if updater.CanRestorePreviousVersion() {
 		return "the previous version has been restored"
 	}
+	release := urlrewrite.Rewrite(releaseURL(latest))
 	if pm == "pnpm" {
-		return fmt.Sprintf("automatic rollback is unavailable on this platform; reinstall manually (skills will not be synced): pnpm add -g %s@%s && pnpm dlx skills add larksuite/cli -y -g, or download %s", selfupdate.NpmPackage, latest, releaseURL(latest))
+		return fmt.Sprintf("automatic rollback is unavailable on this platform; reinstall manually (skills will not be synced): pnpm add -g %s@%s && pnpm dlx skills add larksuite/cli -y -g, or download %s", selfupdate.NpmPackage, latest, release)
 	}
-	return fmt.Sprintf("automatic rollback is unavailable on this platform; reinstall manually (skills will not be synced): npm install -g %s@%s && npx skills add larksuite/cli -y -g, or download %s", selfupdate.NpmPackage, latest, releaseURL(latest))
+	return fmt.Sprintf("automatic rollback is unavailable on this platform; reinstall manually (skills will not be synced): npm install -g %s@%s && npx skills add larksuite/cli -y -g, or download %s", selfupdate.NpmPackage, latest, release)
 }
 
 func runSkillsAndState(updater *selfupdate.Updater, io *cmdutil.IOStreams, stateVersion string, force bool, requestedLayout string) *skillscheck.SyncResult {

cmd/update/update_test.go

@@ -22,6 +22,7 @@ import (
 	"github.com/larksuite/cli/internal/output"
 	"github.com/larksuite/cli/internal/selfupdate"
 	"github.com/larksuite/cli/internal/skillscheck"
+	testurlrewrite "github.com/larksuite/cli/internal/testutil/urlrewrite"
 )
 
 const runLiveSkillsTestsEnv = "LARKSUITE_CLI_RUN_LIVE_SKILLS_TESTS"
@@ -907,6 +908,17 @@ func TestReleaseURL(t *testing.T) {
 	}
 }
 
+func TestResolvePresentationURLsRewrites(t *testing.T) {
+	testurlrewrite.Register(t, func(rawURL string) string {
+		return strings.Replace(rawURL, "github.com", "mirror.example.test", 1)
+	})
+
+	got := resolvePresentationURLs("2.0.0")
+	if got.release != "https://mirror.example.test/larksuite/cli/releases/tag/v2.0.0" || got.changelog != "https://mirror.example.test/larksuite/cli/blob/main/CHANGELOG.md" {
+		t.Fatalf("resolvePresentationURLs() = %#v", got)
+	}
+}
+
 func TestPermissionHint(t *testing.T) {
 	origOS := currentOS
 	defer func() { currentOS = origOS }()

extension/README.md

@@ -7,7 +7,13 @@ Main extension points:
 | Package | Extension point | What it does |
 | ------- | --------------- | ------------ |
 | [`credential/`](./credential/) | **Credential** | Bring your own credential source: database, Vault, config center… |
-| [`transport/`](./transport/) | **Transport** | Intercept every HTTP request: inject headers, rewrite targets, logging & monitoring |
+| [`transport/`](./transport/) | **Transport** | Intercept HTTP requests and rewrite CLI-owned network, presentation, and child-process URLs |
 | [`platform/`](./platform/) | **Restrict · Observer · Wrap · On** | Command allow/deny rules, audit hooks, onion-style middleware (approval gates, rate limiting), process lifecycle — see the [Plugin SDK README](./platform/README.md) |
 
 📖 Full guide: [Embed lark-cli in your Agent](https://open.larksuite.com/document/mcp_open_tools/feishu-cli/embed-feishu-cli-in-agent) ([中文](https://open.larkoffice.com/document/mcp_open_tools/feishu-cli/embed-feishu-cli-in-agent))
+
+The transport registry has one process-wide owner. Register the aggregate
+provider during `init`, before constructing or executing the CLI. URL rewriting
+runs before the request interceptor and also covers CLI-owned presentation URLs
+and URLs passed to child processes. `ScopedProvider` limits only the request
+interceptor.

extension/transport/registry.go

@@ -10,9 +10,13 @@ var (
 	provider Provider
 )
 
-// Register registers a transport Provider.
-// Later registrations override earlier ones.
-// Typically called from init() via blank import.
+// Register sets the process-wide transport Provider.
+//
+// Integrations that need multiple capabilities compose them in one Provider
+// and register it during init, before command construction or execution. Later
+// registrations replace the earlier Provider for backward compatibility;
+// changing the Provider while the CLI is running is unsupported because
+// clients may already hold a resolved interceptor or URL rewriter.
 func Register(p Provider) {
 	mu.Lock()
 	defer mu.Unlock()