fix: cache install detection and make update failure hints pnpm-aware

cmd/update/update.go

@@ -102,7 +102,8 @@ func NewCmdUpdate(f *cmdutil.Factory) *cobra.Command {
 		Long: `Update lark-cli to the latest version.
 
 Detects the installation method automatically:
-  - npm install: runs npm install -g @larksuite/cli@<version>
+  - npm install:  runs npm install -g @larksuite/cli@<version>
+  - pnpm install: runs pnpm add -g @larksuite/cli@<version>
   - manual/other: shows GitHub Releases download URL
 
 Use --json for structured output (for AI agents and scripts).
@@ -164,7 +165,7 @@ func updateRun(opts *UpdateOptions) error {
 	if !detect.CanAutoUpdate() {
 		return doManualUpdate(opts, io, cur, latest, detect, updater)
 	}
-	return doNpmUpdate(opts, io, cur, latest, updater)
+	return doAutoUpdate(opts, io, cur, latest, detect, updater)
 }
 
 // --- Output helpers ---
@@ -226,12 +227,23 @@ func doManualUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest stri
 	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, "\nOr install via npm (note: skills will not be synced):\n  npm install -g %s@%s\n  npx skills add larksuite/cli -y -g   # sync skills separately\n", selfupdate.NpmPackage, latest)
+	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 {
+		fmt.Fprintf(io.ErrOut, "\nOr install via npm (note: skills will not be synced):\n  npm install -g %s@%s\n  npx skills add larksuite/cli -y -g   # sync skills separately\n", selfupdate.NpmPackage, latest)
+	}
 	emitSkillsTextHints(io, skillsResult)
 	return nil
 }
 
-func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, updater *selfupdate.Updater) error {
+func doAutoUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string, detect selfupdate.DetectResult, updater *selfupdate.Updater) error {
+	pm := "npm"
+	install := updater.RunNpmInstall
+	if detect.Method == selfupdate.InstallPnpm {
+		pm = "pnpm"
+		install = updater.RunPnpmInstall
+	}
+
 	restore, err := updater.PrepareSelfReplace()
 	if err != nil {
 		return reportError(opts, io, "update_error",
@@ -239,19 +251,19 @@ func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string,
 	}
 
 	if !opts.JSON {
-		fmt.Fprintf(io.ErrOut, "Updating lark-cli %s %s %s via npm ...\n", cur, symArrow(), latest)
+		fmt.Fprintf(io.ErrOut, "Updating lark-cli %s %s %s via %s ...\n", cur, symArrow(), latest, pm)
 	}
 
-	npmResult := updater.RunNpmInstall(latest)
+	npmResult := install(latest)
 	if npmResult.Err != nil {
 		restore()
 		combined := npmResult.CombinedOutput()
 		if opts.JSON {
 			output.PrintJson(io.Out, map[string]interface{}{
 				"ok": false, "error": map[string]interface{}{
-					"type": "update_error", "message": fmt.Sprintf("npm install failed: %s", npmResult.Err),
+					"type": "update_error", "message": fmt.Sprintf("%s install failed: %s", pm, npmResult.Err),
 					"detail": selfupdate.Truncate(combined, maxNpmOutput),
-					"hint":   permissionHint(combined),
+					"hint":   permissionHint(combined, pm),
 				},
 			})
 			return output.ErrBare(output.ExitAPI)
@@ -263,7 +275,7 @@ func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string,
 			fmt.Fprint(io.ErrOut, npmResult.Stderr.String())
 		}
 		fmt.Fprintf(io.ErrOut, "\n%s Update failed: %s\n", symFail(), npmResult.Err)
-		if hint := permissionHint(combined); hint != "" {
+		if hint := permissionHint(combined, pm); hint != "" {
 			fmt.Fprintf(io.ErrOut, "  %s\n", hint)
 		}
 		return output.ErrBare(output.ExitAPI)
@@ -274,7 +286,7 @@ func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string,
 	if err := updater.VerifyBinary(latest); err != nil {
 		restore()
 		msg := fmt.Sprintf("new binary verification failed: %s", err)
-		hint := verificationFailureHint(updater, latest)
+		hint := verificationFailureHint(updater, latest, pm)
 		if opts.JSON {
 			output.PrintJson(io.Out, map[string]interface{}{
 				"ok":    false,
@@ -304,23 +316,33 @@ func doNpmUpdate(opts *UpdateOptions, io *cmdutil.IOStreams, cur, latest string,
 	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())
 	if skillsResult != nil {
-		fmt.Fprintf(io.ErrOut, "\nUpdating skills ...\n")
+		skillsPM := "npx"
+		if detect.Method == selfupdate.InstallPnpm && detect.PnpmAvailable {
+			skillsPM = "pnpm dlx"
+		}
+		fmt.Fprintf(io.ErrOut, "\nUpdating skills via %s ...\n", skillsPM)
 	}
 	emitSkillsTextHints(io, skillsResult)
 	return nil
 }
 
-func permissionHint(npmOutput string) string {
-	if strings.Contains(npmOutput, "EACCES") && !isWindows() {
-		return "Permission denied. Try: sudo lark-cli update, or adjust your npm global prefix: https://docs.npmjs.com/resolving-eacces-permissions-errors"
+func permissionHint(pmOutput, pm string) string {
+	if !strings.Contains(pmOutput, "EACCES") || isWindows() {
+		return ""
 	}
-	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. Try: sudo lark-cli update, or adjust your npm global prefix: https://docs.npmjs.com/resolving-eacces-permissions-errors"
 }
 
-func verificationFailureHint(updater *selfupdate.Updater, latest string) string {
+func verificationFailureHint(updater *selfupdate.Updater, latest, pm string) string {
 	if updater.CanRestorePreviousVersion() {
 		return "the previous version has been restored"
 	}
+	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): npm install -g %s@%s && npx skills add larksuite/cli -y -g, or download %s", selfupdate.NpmPackage, latest, releaseURL(latest))
 }
 

cmd/update/update_test.go

@@ -57,6 +57,27 @@ func mockDetectAndNpm(t *testing.T, result selfupdate.DetectResult, npmFn func(s
 	t.Cleanup(func() { newUpdater = origNew })
 }
 
+// mockDetectAndPnpm mirrors mockDetectAndNpm but wires the pnpm install path
+// and fails the test if the npm install path is invoked.
+func mockDetectAndPnpm(t *testing.T, result selfupdate.DetectResult, pnpmFn func(string) *selfupdate.NpmResult) {
+	t.Helper()
+	origNew := newUpdater
+	newUpdater = func() *selfupdate.Updater {
+		u := selfupdate.New()
+		u.DetectOverride = func() selfupdate.DetectResult { return result }
+		u.PnpmInstallOverride = pnpmFn
+		u.NpmInstallOverride = func(string) *selfupdate.NpmResult {
+			t.Errorf("npm install must not be called for a pnpm install")
+			return &selfupdate.NpmResult{}
+		}
+		u.VerifyOverride = func(string) error { return nil }
+		u.SkillsIndexFetchOverride = successfulSkillsIndexFetch()
+		u.SkillsCommandOverride = successfulSkillsCommand()
+		return u
+	}
+	t.Cleanup(func() { newUpdater = origNew })
+}
+
 func successfulSkillsIndexFetch() func() *selfupdate.NpmResult {
 	return func() *selfupdate.NpmResult {
 		r := &selfupdate.NpmResult{}
@@ -81,6 +102,110 @@ func successfulSkillsCommand() func(args ...string) *selfupdate.NpmResult {
 	}
 }
 
+func TestUpdatePnpm_JSON(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, stdout, _ := newTestFactory(t)
+	cmd := NewCmdUpdate(f)
+	cmd.SetArgs([]string{"--json"})
+	origFetch := fetchLatest
+	fetchLatest = func() (string, error) { return "2.0.0", nil }
+	defer func() { fetchLatest = origFetch }()
+	origVersion := currentVersion
+	currentVersion = func() string { return "1.0.0" }
+	defer func() { currentVersion = origVersion }()
+	mockDetectAndPnpm(t,
+		selfupdate.DetectResult{Method: selfupdate.InstallPnpm, ResolvedPath: "/x/node_modules/.pnpm/@larksuite+cli@1.0.0/node_modules/@larksuite/cli/bin/lark-cli", PnpmAvailable: true},
+		func(string) *selfupdate.NpmResult { return &selfupdate.NpmResult{} },
+	)
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	if out := stdout.String(); !strings.Contains(out, `"action": "updated"`) {
+		t.Errorf("expected updated in output, got: %s", out)
+	}
+}
+
+func TestUpdatePnpm_Human(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, _, stderr := newTestFactory(t)
+	cmd := NewCmdUpdate(f)
+	cmd.SetArgs([]string{})
+	origFetch := fetchLatest
+	fetchLatest = func() (string, error) { return "2.0.0", nil }
+	defer func() { fetchLatest = origFetch }()
+	origVersion := currentVersion
+	currentVersion = func() string { return "1.0.0" }
+	defer func() { currentVersion = origVersion }()
+	mockDetectAndPnpm(t,
+		selfupdate.DetectResult{Method: selfupdate.InstallPnpm, ResolvedPath: "/x/node_modules/.pnpm/@larksuite+cli@1.0.0/node_modules/@larksuite/cli/bin/lark-cli", PnpmAvailable: true},
+		func(string) *selfupdate.NpmResult { return &selfupdate.NpmResult{} },
+	)
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stderr.String()
+	if !strings.Contains(out, "via pnpm") {
+		t.Errorf("expected 'via pnpm' in stderr, got: %s", out)
+	}
+	if !strings.Contains(out, "Updating skills via pnpm dlx ...") {
+		t.Errorf("expected skills sync to report pnpm dlx launcher, got: %s", out)
+	}
+	if !strings.Contains(out, "Successfully updated") {
+		t.Errorf("expected success message, got: %s", out)
+	}
+}
+
+func TestUpdatePnpm_InstallError_JSON(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, stdout, _ := newTestFactory(t)
+	cmd := NewCmdUpdate(f)
+	cmd.SetArgs([]string{"--json"})
+	origFetch := fetchLatest
+	fetchLatest = func() (string, error) { return "2.0.0", nil }
+	defer func() { fetchLatest = origFetch }()
+	origVersion := currentVersion
+	currentVersion = func() string { return "1.0.0" }
+	defer func() { currentVersion = origVersion }()
+	mockDetectAndPnpm(t,
+		selfupdate.DetectResult{Method: selfupdate.InstallPnpm, ResolvedPath: "/x/node_modules/.pnpm/@larksuite+cli@1.0.0/node_modules/@larksuite/cli/bin/lark-cli", PnpmAvailable: true},
+		func(string) *selfupdate.NpmResult { return &selfupdate.NpmResult{Err: errors.New("pnpm boom")} },
+	)
+	err := cmd.Execute()
+	if err == nil {
+		t.Fatal("expected error exit")
+	}
+	if out := stdout.String(); !strings.Contains(out, `"ok": false`) || !strings.Contains(out, "update_error") {
+		t.Errorf("expected failure envelope, got: %s", out)
+	}
+	if out := stdout.String(); !strings.Contains(out, "pnpm install failed") {
+		t.Errorf("expected message to report pnpm as the package manager, got: %s", out)
+	}
+}
+
+func TestUpdatePnpm_Unavailable_ManualFallback(t *testing.T) {
+	t.Setenv("LARKSUITE_CLI_CONFIG_DIR", t.TempDir())
+	f, _, stderr := newTestFactory(t)
+	cmd := NewCmdUpdate(f)
+	cmd.SetArgs([]string{})
+	origFetch := fetchLatest
+	fetchLatest = func() (string, error) { return "2.0.0", nil }
+	defer func() { fetchLatest = origFetch }()
+	origVersion := currentVersion
+	currentVersion = func() string { return "1.0.0" }
+	defer func() { currentVersion = origVersion }()
+	mockDetect(t, selfupdate.DetectResult{Method: selfupdate.InstallPnpm, ResolvedPath: "/x/node_modules/.pnpm/@larksuite+cli@1.0.0/node_modules/@larksuite/cli/bin/lark-cli", PnpmAvailable: false})
+	if err := cmd.Execute(); err != nil {
+		t.Fatalf("unexpected error: %v", err)
+	}
+	out := stderr.String()
+	if !strings.Contains(out, "installed via pnpm, but pnpm is not available in PATH") {
+		t.Errorf("expected pnpm manual reason, got: %s", out)
+	}
+	if !strings.Contains(out, "pnpm add -g") {
+		t.Errorf("expected pnpm add -g hint, got: %s", out)
+	}
+}
+
 func TestNormalizeVersion(t *testing.T) {
 	tests := []struct {
 		input string
@@ -266,6 +391,9 @@ func TestUpdateNpm_Human(t *testing.T) {
 	if !strings.Contains(out, "Successfully updated") {
 		t.Errorf("expected success message in stderr, got: %s", out)
 	}
+	if !strings.Contains(out, "Updating skills via npx ...") {
+		t.Errorf("expected skills sync to report npx launcher for npm install, got: %s", out)
+	}
 }
 
 func TestUpdateForce_JSON(t *testing.T) {
@@ -739,9 +867,9 @@ func TestPermissionHint(t *testing.T) {
 	origOS := currentOS
 	defer func() { currentOS = origOS }()
 
-	// Linux: EACCES should produce a hint with npm prefix guidance.
+	// Linux + npm: EACCES should produce a hint with npm prefix guidance.
 	currentOS = "linux"
-	hint := permissionHint("EACCES: permission denied, access '/usr/local/lib'")
+	hint := permissionHint("EACCES: permission denied, access '/usr/local/lib'", "npm")
 	if !strings.Contains(hint, "npm global prefix") {
 		t.Errorf("expected npm prefix hint on linux, got: %s", hint)
 	}
@@ -749,16 +877,25 @@ func TestPermissionHint(t *testing.T) {
 		t.Errorf("should not suggest raw sudo npm install, got: %s", hint)
 	}
 
+	// Linux + pnpm: EACCES should point at pnpm setup, not npm prefix/sudo.
+	pnpmHint := permissionHint("EACCES: permission denied, access '/Users/x/Library/pnpm'", "pnpm")
+	if !strings.Contains(pnpmHint, "pnpm setup") {
+		t.Errorf("expected pnpm setup hint, got: %s", pnpmHint)
+	}
+	if strings.Contains(pnpmHint, "npm global prefix") || strings.Contains(pnpmHint, "sudo") {
+		t.Errorf("pnpm hint must not reference npm prefix or sudo, got: %s", pnpmHint)
+	}
+
 	// Windows: EACCES hint is suppressed (no EACCES on Windows).
 	currentOS = "windows"
-	hint = permissionHint("EACCES: permission denied")
+	hint = permissionHint("EACCES: permission denied", "npm")
 	if hint != "" {
 		t.Errorf("expected empty hint on Windows, got: %s", hint)
 	}
 
 	// Non-EACCES error: always empty.
 	currentOS = "linux"
-	if got := permissionHint("some other error"); got != "" {
+	if got := permissionHint("some other error", "npm"); got != "" {
 		t.Errorf("expected empty hint for non-EACCES, got: %s", got)
 	}
 }

internal/selfupdate/updater.go

@@ -32,6 +32,7 @@ type InstallMethod int
 
 const (
 	InstallNpm InstallMethod = iota
+	InstallPnpm
 	InstallManual
 )
 
@@ -53,22 +54,32 @@ var (
 
 // DetectResult holds installation detection results.
 type DetectResult struct {
-	Method       InstallMethod
-	ResolvedPath string
-	NpmAvailable bool
+	Method        InstallMethod
+	ResolvedPath  string
+	NpmAvailable  bool
+	PnpmAvailable bool
 }
 
 // CanAutoUpdate returns true if the CLI can update itself automatically.
 func (d DetectResult) CanAutoUpdate() bool {
-	return d.Method == InstallNpm && d.NpmAvailable
+	switch d.Method {
+	case InstallNpm:
+		return d.NpmAvailable
+	case InstallPnpm:
+		return d.PnpmAvailable
+	}
+	return false
 }
 
 // ManualReason returns a human-readable explanation of why auto-update is unavailable.
 func (d DetectResult) ManualReason() string {
-	if d.Method == InstallNpm && !d.NpmAvailable {
+	switch {
+	case d.Method == InstallNpm && !d.NpmAvailable:
 		return "installed via npm, but npm is not available in PATH"
+	case d.Method == InstallPnpm && !d.PnpmAvailable:
+		return "installed via pnpm, but pnpm is not available in PATH"
 	}
-	return "not installed via npm"
+	return "not installed via npm or pnpm"
 }
 
 // NpmResult holds the result of an npm install or skills update execution.
@@ -92,6 +103,7 @@ func (r *NpmResult) CombinedOutput() string {
 type Updater struct {
 	DetectOverride           func() DetectResult
 	NpmInstallOverride       func(version string) *NpmResult
+	PnpmInstallOverride      func(version string) *NpmResult
 	SkillsIndexFetchOverride func() *NpmResult
 	SkillsCommandOverride    func(args ...string) *NpmResult
 	VerifyOverride           func(expectedVersion string) error
@@ -101,17 +113,38 @@ type Updater struct {
 	// running binary is successfully renamed to .old. Used by
 	// CanRestorePreviousVersion to report whether rollback is possible.
 	backupCreated bool
+
+	// detectCache memoizes the first real DetectInstallMethod result. How this
+	// binary was installed cannot change during a single process, so caching is
+	// the correct semantics — and it is required for correctness: the update
+	// flow mutates the install (pnpm add -g / npm install -g) before syncing
+	// skills, so a re-detection at skills time could resolve a now-stale
+	// os.Executable path and misclassify. Seeded pre-update by the first call
+	// (updateRun), it keeps the post-update skills launcher consistent with the
+	// launcher reported to the user. Not goroutine-safe; the update flow is
+	// sequential.
+	detectCache *DetectResult
 }
 
 // New creates an Updater with default (real) behavior.
 func New() *Updater { return &Updater{} }
 
-// DetectInstallMethod determines how the CLI was installed and whether
-// npm is available for auto-update.
+// DetectInstallMethod determines how the CLI was installed and whether the
+// owning package manager is available for auto-update.
 func (u *Updater) DetectInstallMethod() DetectResult {
 	if u.DetectOverride != nil {
 		return u.DetectOverride()
 	}
+	if u.detectCache != nil {
+		return *u.detectCache
+	}
+	result := u.detectInstallMethod()
+	u.detectCache = &result
+	return result
+}
+
+// detectInstallMethod performs the real (uncached) detection.
+func (u *Updater) detectInstallMethod() DetectResult {
 	exe, err := vfs.Executable()
 	if err != nil {
 		return DetectResult{Method: InstallManual}
@@ -120,24 +153,54 @@ func (u *Updater) DetectInstallMethod() DetectResult {
 	if err != nil {
 		return DetectResult{Method: InstallManual, ResolvedPath: exe}
 	}
+	_, npmErr := exec.LookPath("npm")
+	_, pnpmErr := exec.LookPath("pnpm")
+	return detectFromResolved(resolved, npmErr == nil, pnpmErr == nil)
+}
 
+// detectFromResolved classifies the resolved binary path into an install
+// method and records package-manager availability. Split out from
+// DetectInstallMethod so the classification is unit-testable without touching
+// the filesystem or PATH.
+func detectFromResolved(resolved string, npmOnPath, pnpmOnPath bool) DetectResult {
 	method := InstallManual
 	if strings.Contains(resolved, "node_modules") {
-		method = InstallNpm
-	}
-
-	npmAvailable := false
-	if method == InstallNpm {
-		if _, err := exec.LookPath("npm"); err == nil {
-			npmAvailable = true
+		if containsPnpmMarker(resolved) {
+			method = InstallPnpm
+		} else {
+			method = InstallNpm
 		}
 	}
-
-	return DetectResult{
-		Method:       method,
-		ResolvedPath: resolved,
-		NpmAvailable: npmAvailable,
+	d := DetectResult{Method: method, ResolvedPath: resolved}
+	switch method {
+	case InstallNpm:
+		d.NpmAvailable = npmOnPath
+	case InstallPnpm:
+		d.PnpmAvailable = pnpmOnPath
 	}
+	return d
+}
+
+// containsPnpmMarker reports whether the resolved binary path belongs to a
+// pnpm-managed install. pnpm exposes two layouts: the classic virtual store
+// (a ".pnpm" directory segment) and the global content-addressable store,
+// whose resolved path runs through pnpm's home directory (e.g.
+// "~/Library/pnpm/store/v11/links/...") — a "pnpm" segment immediately
+// followed by "store". Matching only these two shapes (rather than any bare
+// "pnpm" segment) avoids misclassifying an npm install that merely lives under
+// a directory named "pnpm". Windows separators are normalized to "/" so the
+// classification is OS-independent and unit-testable anywhere.
+func containsPnpmMarker(p string) bool {
+	parts := strings.Split(strings.ReplaceAll(p, `\`, "/"), "/")
+	for i, part := range parts {
+		if part == ".pnpm" {
+			return true
+		}
+		if part == "pnpm" && i+1 < len(parts) && parts[i+1] == "store" {
+			return true
+		}
+	}
+	return false
 }
 
 // RunNpmInstall executes npm install -g @larksuite/cli@<version>.
@@ -163,6 +226,29 @@ func (u *Updater) RunNpmInstall(version string) *NpmResult {
 	return r
 }
 
+// RunPnpmInstall executes pnpm add -g @larksuite/cli@<version>.
+func (u *Updater) RunPnpmInstall(version string) *NpmResult {
+	if u.PnpmInstallOverride != nil {
+		return u.PnpmInstallOverride(version)
+	}
+	r := &NpmResult{}
+	pnpmPath, err := exec.LookPath("pnpm")
+	if err != nil {
+		r.Err = fmt.Errorf("pnpm not found in PATH: %w", err)
+		return r
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), npmInstallTimeout)
+	defer cancel()
+	cmd := exec.CommandContext(ctx, pnpmPath, "add", "-g", NpmPackage+"@"+version)
+	cmd.Stdout = &r.Stdout
+	cmd.Stderr = &r.Stderr
+	r.Err = cmd.Run()
+	if ctx.Err() == context.DeadlineExceeded {
+		r.Err = fmt.Errorf("pnpm install timed out after %s", npmInstallTimeout)
+	}
+	return r
+}
+
 func (u *Updater) ListOfficialSkillsIndex() *NpmResult {
 	if u.SkillsIndexFetchOverride != nil {
 		return u.SkillsIndexFetchOverride()
@@ -261,19 +347,40 @@ func (u *Updater) runSkillsInstall(source string, nameList []string) *NpmResult
 	return u.runSkillsCommand(args...)
 }
 
+// skillsInvocation decides how to launch the `skills` CLI. When the lark-cli
+// itself was installed via pnpm and pnpm is available, it uses `pnpm dlx` so
+// pnpm-only environments (pnpm's standalone installer bundles Node without
+// putting npm/npx on PATH) can still sync skills after a self-update.
+// Otherwise it uses `npx`. The npx auto-confirm flag "-y", when present as the
+// leading arg, maps to `pnpm dlx`'s default non-interactive behavior and is
+// dropped for the pnpm launcher. Kept pure (no exec/PATH access) so the
+// launcher selection is unit-testable on any platform.
+func skillsInvocation(method InstallMethod, pnpmAvailable bool, args []string) (launcher string, rest []string) {
+	if method == InstallPnpm && pnpmAvailable {
+		r := args
+		if len(r) > 0 && r[0] == "-y" {
+			r = r[1:]
+		}
+		return "pnpm", append([]string{"dlx"}, r...)
+	}
+	return "npx", args
+}
+
 func (u *Updater) runSkillsCommand(args ...string) *NpmResult {
 	if u.SkillsCommandOverride != nil {
 		return u.SkillsCommandOverride(args...)
 	}
 	r := &NpmResult{}
-	npxPath, err := exec.LookPath("npx")
+	det := u.DetectInstallMethod()
+	launcher, cmdArgs := skillsInvocation(det.Method, det.PnpmAvailable, args)
+	binPath, err := exec.LookPath(launcher)
 	if err != nil {
-		r.Err = fmt.Errorf("npx not found in PATH: %w", err)
+		r.Err = fmt.Errorf("%s not found in PATH: %w", launcher, err)
 		return r
 	}
 	ctx, cancel := context.WithTimeout(context.Background(), skillsUpdateTimeout)
 	defer cancel()
-	cmd := exec.CommandContext(ctx, npxPath, args...)
+	cmd := exec.CommandContext(ctx, binPath, cmdArgs...)
 	cmd.Stdout = &r.Stdout
 	cmd.Stderr = &r.Stderr
 	r.Err = cmd.Run()

internal/selfupdate/updater_test.go

@@ -371,3 +371,147 @@ func TestListOfficialSkillsFallsBack(t *testing.T) {
 		t.Fatalf("fallback call = %q, want larksuite/cli --list", called[1])
 	}
 }
+
+func TestContainsPnpmMarker(t *testing.T) {
+	cases := []struct {
+		path string
+		want bool
+	}{
+		// Classic virtual-store layout (.pnpm segment).
+		{"/Users/x/Library/pnpm/global/5/node_modules/.pnpm/@larksuite+cli@1.0.44/node_modules/@larksuite/cli/bin/lark-cli", true},
+		{`C:\Users\x\AppData\Local\pnpm\global\5\node_modules\.pnpm\@larksuite+cli@1.0.44\node_modules\@larksuite\cli\bin\lark-cli.exe`, true},
+		// Global content-addressable store layout (pnpm 11): resolved path runs
+		// through the pnpm home store, a "pnpm" segment with no ".pnpm".
+		{"/Users/x/Library/pnpm/store/v11/links/@larksuite/cli/1.0.59/abc123/node_modules/@larksuite/cli/bin/lark-cli", true},
+		{"/home/x/.local/share/pnpm/store/v10/@larksuite/cli/node_modules/@larksuite/cli/bin/lark-cli", true},
+		{`C:\Users\x\AppData\Local\pnpm\store\v11\links\@larksuite\cli\node_modules\@larksuite\cli\bin\lark-cli.exe`, true},
+		// npm and non-package installs — no pnpm/.pnpm segment.
+		{"/usr/local/lib/node_modules/@larksuite/cli/bin/lark-cli", false},
+		{"/usr/local/bin/lark-cli", false},
+		// Substrings that must NOT match: segment must be exactly .pnpm, or
+		// "pnpm" immediately followed by "store".
+		{"/opt/homebrew/.pnpmfoo/node_modules/@larksuite/cli/bin/lark-cli", false},
+		{"/opt/pnpmfoo/node_modules/@larksuite/cli/bin/lark-cli", false},
+		// A bare "pnpm" directory NOT followed by "store" (e.g. an npm install
+		// living under a dir named pnpm) must not be misclassified as pnpm.
+		{"/opt/pnpm/lib/node_modules/@larksuite/cli/bin/lark-cli", false},
+	}
+	for _, c := range cases {
+		if got := containsPnpmMarker(c.path); got != c.want {
+			t.Errorf("containsPnpmMarker(%q) = %v, want %v", c.path, got, c.want)
+		}
+	}
+}
+
+func TestDetectInstallMethod_Pnpm(t *testing.T) {
+	u := &Updater{DetectOverride: nil}
+	u.DetectOverride = func() DetectResult {
+		// Exercise the real classification by feeding a resolved path via a small shim.
+		return detectFromResolved("/x/node_modules/.pnpm/@larksuite+cli@1.0.44/node_modules/@larksuite/cli/bin/lark-cli", true, true)
+	}
+	got := u.DetectInstallMethod()
+	if got.Method != InstallPnpm {
+		t.Errorf("Method = %v, want InstallPnpm", got.Method)
+	}
+	if !got.PnpmAvailable {
+		t.Errorf("PnpmAvailable = false, want true")
+	}
+}
+
+func TestDetectInstallMethod_NpmVsManual(t *testing.T) {
+	if m := detectFromResolved("/usr/local/lib/node_modules/@larksuite/cli/bin/lark-cli", true, false).Method; m != InstallNpm {
+		t.Errorf("npm path Method = %v, want InstallNpm", m)
+	}
+	if m := detectFromResolved("/usr/local/bin/lark-cli", false, false).Method; m != InstallManual {
+		t.Errorf("manual path Method = %v, want InstallManual", m)
+	}
+}
+
+func TestCanAutoUpdate_Pnpm(t *testing.T) {
+	if !(DetectResult{Method: InstallPnpm, PnpmAvailable: true}).CanAutoUpdate() {
+		t.Error("pnpm available should CanAutoUpdate")
+	}
+	if (DetectResult{Method: InstallPnpm, PnpmAvailable: false}).CanAutoUpdate() {
+		t.Error("pnpm unavailable should not CanAutoUpdate")
+	}
+}
+
+func TestManualReason_Pnpm(t *testing.T) {
+	if got := (DetectResult{Method: InstallPnpm, NpmAvailable: false, PnpmAvailable: false}).ManualReason(); got != "installed via pnpm, but pnpm is not available in PATH" {
+		t.Errorf("pnpm reason = %q", got)
+	}
+	if got := (DetectResult{Method: InstallManual}).ManualReason(); got != "not installed via npm or pnpm" {
+		t.Errorf("manual reason = %q", got)
+	}
+}
+
+func TestRunPnpmInstall_Override(t *testing.T) {
+	u := &Updater{PnpmInstallOverride: func(version string) *NpmResult {
+		r := &NpmResult{}
+		r.Stdout.WriteString("added @larksuite/cli@" + version)
+		return r
+	}}
+	got := u.RunPnpmInstall("2.0.0")
+	if got.Err != nil {
+		t.Fatalf("unexpected err: %v", got.Err)
+	}
+	if !strings.Contains(got.CombinedOutput(), "2.0.0") {
+		t.Errorf("output = %q, want version echoed", got.CombinedOutput())
+	}
+}
+
+func TestRunPnpmInstall_Error(t *testing.T) {
+	wantErr := errors.New("boom")
+	u := &Updater{PnpmInstallOverride: func(string) *NpmResult { return &NpmResult{Err: wantErr} }}
+	if got := u.RunPnpmInstall("2.0.0"); !errors.Is(got.Err, wantErr) {
+		t.Errorf("err = %v, want %v", got.Err, wantErr)
+	}
+}
+
+func TestSkillsInvocation(t *testing.T) {
+	addArgs := []string{"-y", "skills", "add", "https://open.feishu.cn", "-g", "-y"}
+	cases := []struct {
+		name          string
+		method        InstallMethod
+		pnpmAvailable bool
+		args          []string
+		wantLauncher  string
+		wantRest      []string
+	}{
+		{"pnpm install + pnpm available → pnpm dlx, drop leading -y", InstallPnpm, true, addArgs,
+			"pnpm", []string{"dlx", "skills", "add", "https://open.feishu.cn", "-g", "-y"}},
+		{"pnpm install but pnpm unavailable → npx unchanged", InstallPnpm, false, addArgs,
+			"npx", addArgs},
+		{"npm install → npx unchanged", InstallNpm, false, addArgs,
+			"npx", addArgs},
+		{"manual install → npx unchanged", InstallManual, false, []string{"-y", "skills", "ls", "-g"},
+			"npx", []string{"-y", "skills", "ls", "-g"}},
+		{"pnpm without a leading -y → prepend dlx only", InstallPnpm, true, []string{"skills", "ls", "-g"},
+			"pnpm", []string{"dlx", "skills", "ls", "-g"}},
+	}
+	for _, c := range cases {
+		t.Run(c.name, func(t *testing.T) {
+			gotLauncher, gotRest := skillsInvocation(c.method, c.pnpmAvailable, c.args)
+			if gotLauncher != c.wantLauncher {
+				t.Errorf("launcher = %q, want %q", gotLauncher, c.wantLauncher)
+			}
+			if strings.Join(gotRest, " ") != strings.Join(c.wantRest, " ") {
+				t.Errorf("rest = %v, want %v", gotRest, c.wantRest)
+			}
+		})
+	}
+}
+
+// TestDetectInstallMethod_Caches locks the fix for the post-update re-detection
+// hazard: DetectInstallMethod must return the first (pre-update) detection on
+// subsequent calls, so the skills launcher chosen after the binary is replaced
+// stays consistent with what was detected — and reported — before the update.
+func TestDetectInstallMethod_Caches(t *testing.T) {
+	u := New()
+	cached := DetectResult{Method: InstallPnpm, PnpmAvailable: true, ResolvedPath: "/x/pnpm/store/v11/links/@larksuite/cli/1.0.0/node_modules/@larksuite/cli/bin/lark-cli"}
+	u.detectCache = &cached
+	got := u.DetectInstallMethod()
+	if got.Method != InstallPnpm || !got.PnpmAvailable {
+		t.Errorf("expected cached pnpm result to be returned, got %+v", got)
+	}
+}