diff --git a/CLAUDE.md b/CLAUDE.md
index 26e08fa1d..a409cb3ba 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -50,4 +50,4 @@ Lint: `golangci-lint run`
 | [`todo/TASKS-2.md`](todo/TASKS-2.md) | **Subagent Orchestration (Container Model)** — SubagentContainer、Orchestrator、Presets enforcement、Subagent Plan Mode |
 | [`todo/TASKS-3.md`](todo/TASKS-3.md) | **Session DAG (SQLite Store)** — セッション管理の SQLite 移行、Turn ベース線形+セッション間 DAG、Fork/Report フロー |
 | [`todo/TASKS-4.md`](todo/TASKS-4.md) | **Mini App & Static Serving** — 静的配信の汎用化、バンドラ導入、フロントエンドテスト追加 |
-| [`todo/TASKS-5.md`](todo/TASKS-5.md) | **Heartbeat Worktree Management** — worktree 一覧・点検・手動 merge/dispose の CLI/Mini App UI |
+| [`todo/TASKS-5.md`](todo/TASKS-5.md) | ~~**Heartbeat Worktree Management**~~ ✅ 実装済み（`/plan worktrees` の `list/inspect/merge/dispose`、安全化した `PruneOrphaned`、Mini App `/miniapp/api/worktrees` + Git タブ UI） |
diff --git a/pkg/agent/loop.go b/pkg/agent/loop.go
index 82d9dde26..88f23fd6b 100644
--- a/pkg/agent/loop.go
+++ b/pkg/agent/loop.go
@@ -3860,6 +3860,9 @@ func (al *AgentLoop) handlePlanCommand(args []string, sessionKey string) (string
 		phase := agent.ContextBuilder.GetCurrentPhase()
 		return fmt.Sprintf("Advanced to phase %d.", phase), true
 
+	case "worktrees":
+		return al.handlePlanWorktreesCommand(agent, args[1:]), true
+
 	default:
 		// /plan <task description> — start new plan
 		// Block if a plan is already active (fast-path error).
@@ -3874,6 +3877,163 @@ func (al *AgentLoop) handlePlanCommand(args []string, sessionKey string) (string
 
 // isPlanPreExecution returns true if the plan is in a pre-execution state
 // (interviewing or review) where tool restrictions and iteration caps apply.
+func (al *AgentLoop) handlePlanWorktreesCommand(agent *AgentInstance, args []string) string {
+	repoRoot := git.FindRepoRoot(agent.Workspace)
+	if repoRoot == "" {
+		return "Workspace is not a git repository."
+	}
+	worktreesDir := filepath.Join(agent.Workspace, ".worktrees")
+
+	sub := "list"
+	if len(args) > 0 {
+		sub = strings.ToLower(strings.TrimSpace(args[0]))
+	}
+
+	switch sub {
+	case "", "list":
+		items, err := git.ListManagedWorktrees(repoRoot, worktreesDir)
+		if err != nil {
+			return fmt.Sprintf("Error listing worktrees: %v", err)
+		}
+		if len(items) == 0 {
+			return "No active worktrees in workspace/.worktrees."
+		}
+
+		var sb strings.Builder
+		sb.WriteString("Active worktrees\n\n")
+		for _, wt := range items {
+			status := "clean"
+			if wt.HasUncommitted {
+				status = "dirty"
+			}
+			last := "(no commits)"
+			if wt.LastCommitHash != "" {
+				if wt.LastCommitAge != "" {
+					last = fmt.Sprintf("%s %s (%s)", wt.LastCommitHash, wt.LastCommitSubject, wt.LastCommitAge)
+				} else {
+					last = fmt.Sprintf("%s %s", wt.LastCommitHash, wt.LastCommitSubject)
+				}
+			}
+			fmt.Fprintf(&sb, "- %s\n  branch: %s\n  status: %s\n  last: %s\n", wt.Name, wt.Branch, status, last)
+		}
+		sb.WriteString("\nCommands:\n")
+		sb.WriteString("/plan worktrees inspect <name>\n")
+		sb.WriteString("/plan worktrees merge <name>\n")
+		sb.WriteString("/plan worktrees dispose <name> [force]")
+		return sb.String()
+
+	case "inspect":
+		if len(args) < 2 {
+			return "Usage: /plan worktrees inspect <name>"
+		}
+		name := args[1]
+		wt, err := git.GetManagedWorktree(repoRoot, worktreesDir, name)
+		if err != nil {
+			if errors.Is(err, git.ErrInvalidWorktreeName) {
+				return "Invalid worktree name."
+			}
+			if errors.Is(err, git.ErrWorktreeNotFound) {
+				return fmt.Sprintf("Worktree %q not found.", name)
+			}
+			return fmt.Sprintf("Error inspecting worktree %q: %v", name, err)
+		}
+		statusOut, _ := git.WorktreeStatusShort(wt.Path)
+		diffOut, _ := git.WorktreeDiffStat(wt.Path)
+		logOut, _ := git.WorktreeRecentLog(wt.Path, 10)
+		if statusOut == "" {
+			statusOut = "(clean)"
+		}
+
+		var sb strings.Builder
+		fmt.Fprintf(&sb, "Worktree: %s\nBranch: %s\nDirty: %t\n", wt.Name, wt.Branch, wt.HasUncommitted)
+		if wt.LastCommitHash != "" {
+			fmt.Fprintf(&sb, "Last commit: %s %s", wt.LastCommitHash, wt.LastCommitSubject)
+			if wt.LastCommitAge != "" {
+				fmt.Fprintf(&sb, " (%s)", wt.LastCommitAge)
+			}
+			sb.WriteString("\n")
+		}
+		sb.WriteString("\nStatus:\n```\n")
+		sb.WriteString(statusOut)
+		sb.WriteString("\n```\n")
+		if diffOut != "" {
+			sb.WriteString("\nDiff (stat):\n```\n")
+			sb.WriteString(diffOut)
+			sb.WriteString("\n```\n")
+		}
+		if logOut != "" {
+			sb.WriteString("\nRecent commits:\n```\n")
+			sb.WriteString(logOut)
+			sb.WriteString("\n```")
+		}
+		return sb.String()
+
+	case "merge":
+		if len(args) < 2 {
+			return "Usage: /plan worktrees merge <name>"
+		}
+		name := args[1]
+		res, base, err := git.MergeManagedWorktree(repoRoot, worktreesDir, name, "")
+		if err != nil {
+			if errors.Is(err, git.ErrInvalidWorktreeName) {
+				return "Invalid worktree name."
+			}
+			if errors.Is(err, git.ErrWorktreeNotFound) {
+				return fmt.Sprintf("Worktree %q not found.", name)
+			}
+			return fmt.Sprintf("Error merging worktree %q: %v", name, err)
+		}
+		if res.Conflict {
+			return fmt.Sprintf("Merge conflict while merging `%s` into `%s`. Merge was aborted.", res.Branch, base)
+		}
+		if res.Merged {
+			return fmt.Sprintf("Merged `%s` into `%s`.", res.Branch, base)
+		}
+		return fmt.Sprintf("No merge was performed for `%s`.", name)
+
+	case "dispose":
+		if len(args) < 2 {
+			return "Usage: /plan worktrees dispose <name> [force]"
+		}
+		name := args[1]
+		force := len(args) > 2 && strings.EqualFold(args[2], "force")
+		wt, err := git.GetManagedWorktree(repoRoot, worktreesDir, name)
+		if err != nil {
+			if errors.Is(err, git.ErrInvalidWorktreeName) {
+				return "Invalid worktree name."
+			}
+			if errors.Is(err, git.ErrWorktreeNotFound) {
+				return fmt.Sprintf("Worktree %q not found.", name)
+			}
+			return fmt.Sprintf("Error disposing worktree %q: %v", name, err)
+		}
+		if wt.HasUncommitted && !force {
+			return fmt.Sprintf(
+				"Worktree `%s` has uncommitted changes. Re-run with `/plan worktrees dispose %s force` to confirm.",
+				name,
+				name,
+			)
+		}
+		res, err := git.DisposeManagedWorktree(repoRoot, worktreesDir, name, "")
+		if err != nil {
+			return fmt.Sprintf("Error disposing worktree %q: %v", name, err)
+		}
+		parts := []string{fmt.Sprintf("Disposed worktree `%s` (branch `%s`).", name, res.Branch)}
+		if res.AutoCommitted {
+			parts = append(parts, "Uncommitted changes were auto-committed.")
+		}
+		if res.CommitsAhead > 0 {
+			parts = append(parts, fmt.Sprintf("Branch has %d unique commit(s); branch was kept.", res.CommitsAhead))
+		}
+		if res.BranchDeleted {
+			parts = append(parts, "Branch was deleted (no unique commits).")
+		}
+		return strings.Join(parts, " ")
+	}
+
+	return "Usage: /plan worktrees [list|inspect <name>|merge <name>|dispose <name> [force]]"
+}
+
 func isPlanPreExecution(status string) bool {
 	return status == "interviewing" || status == "review"
 }
@@ -4009,7 +4169,7 @@ func (al *AgentLoop) expandPlanCommand(msg bus.InboundMessage) (expanded string,
 	// Known subcommands are handled by handlePlanCommand (fast path).
 	firstWord := strings.Fields(task)[0]
 	switch firstWord {
-	case "clear", "done", "add", "start", "next":
+	case "clear", "done", "add", "start", "next", "worktrees":
 		return "", "", false
 	}
 
diff --git a/pkg/git/worktree.go b/pkg/git/worktree.go
index d733d1428..9e75f3c5f 100644
--- a/pkg/git/worktree.go
+++ b/pkg/git/worktree.go
@@ -1,14 +1,18 @@
 package git
 
 import (
+	"errors"
 	"fmt"
 	"os"
 	"os/exec"
 	"path/filepath"
 	"regexp"
+	"sort"
 	"strconv"
 	"strings"
 	"unicode"
+
+	"github.com/sipeed/picoclaw/pkg/logger"
 )
 
 // WorktreeInfo describes an active git worktree.
@@ -19,6 +23,24 @@ type WorktreeInfo struct {
 	RepoRoot   string // main repo root
 }
 
+// ManagedWorktree is a user-facing summary for worktree management commands/UI.
+type ManagedWorktree struct {
+	Name              string `json:"name"`
+	Path              string `json:"-"`
+	Branch            string `json:"branch"`
+	LastCommitHash    string `json:"last_commit_hash"`
+	LastCommitSubject string `json:"last_commit_subject"`
+	LastCommitAge     string `json:"last_commit_age"`
+	HasUncommitted    bool   `json:"has_uncommitted"`
+}
+
+var (
+	// ErrInvalidWorktreeName is returned when the given worktree name is unsafe.
+	ErrInvalidWorktreeName = errors.New("invalid worktree name")
+	// ErrWorktreeNotFound is returned when the named worktree cannot be found.
+	ErrWorktreeNotFound = errors.New("worktree not found")
+)
+
 // DisposeResult describes what happened when a worktree was disposed.
 type DisposeResult struct {
 	Branch        string
@@ -221,30 +243,258 @@ func MergeWorktreeBranch(repoDir string, wt *WorktreeInfo) MergeResult {
 	return result
 }
 
-// PruneOrphaned runs git worktree prune and removes dirs in worktreesDir
-// that aren't valid git worktrees.
-func PruneOrphaned(repoDir, worktreesDir string) {
-	pruneCmd := exec.Command("git", "worktree", "prune")
-	pruneCmd.Dir = repoDir
-	pruneCmd.Run() // best-effort
-
+// ListManagedWorktrees returns active worktree summaries under worktreesDir.
+func ListManagedWorktrees(repoDir, worktreesDir string) ([]ManagedWorktree, error) {
 	entries, err := os.ReadDir(worktreesDir)
 	if err != nil {
+		if os.IsNotExist(err) {
+			return []ManagedWorktree{}, nil
+		}
+		return nil, err
+	}
+
+	result := make([]ManagedWorktree, 0, len(entries))
+	for _, entry := range entries {
+		if !entry.IsDir() {
+			continue
+		}
+		name := entry.Name()
+		wtPath := filepath.Join(worktreesDir, name)
+		if !isLinkedWorktree(wtPath) {
+			continue
+		}
+		result = append(result, buildManagedWorktree(repoDir, name, wtPath))
+	}
+
+	sort.Slice(result, func(i, j int) bool { return result[i].Name < result[j].Name })
+	return result, nil
+}
+
+// GetManagedWorktree resolves one managed worktree by name.
+func GetManagedWorktree(repoDir, worktreesDir, name string) (*ManagedWorktree, error) {
+	if !isSafeWorktreeName(name) {
+		return nil, ErrInvalidWorktreeName
+	}
+	wtPath := filepath.Join(worktreesDir, name)
+	if !isLinkedWorktree(wtPath) {
+		return nil, ErrWorktreeNotFound
+	}
+	wt := buildManagedWorktree(repoDir, name, wtPath)
+	return &wt, nil
+}
+
+// MergeManagedWorktree merges a named worktree branch into baseBranch.
+// When baseBranch is empty, DetectDefaultBranch(repoDir) is used.
+func MergeManagedWorktree(repoDir, worktreesDir, name, baseBranch string) (MergeResult, string, error) {
+	var zero MergeResult
+
+	wt, err := GetManagedWorktree(repoDir, worktreesDir, name)
+	if err != nil {
+		return zero, "", err
+	}
+	if wt.Branch == "" || wt.Branch == "HEAD" {
+		return zero, "", fmt.Errorf("worktree %q has no mergeable branch", name)
+	}
+
+	if baseBranch == "" {
+		baseBranch = DetectDefaultBranch(repoDir)
+	}
+	if baseBranch == "" {
+		return zero, "", fmt.Errorf("failed to resolve base branch")
+	}
+
+	current := CurrentBranch(repoDir)
+	if current == "" {
+		return zero, "", fmt.Errorf("failed to detect current branch")
+	}
+
+	if current != baseBranch {
+		if err := checkoutBranch(repoDir, baseBranch); err != nil {
+			return zero, "", err
+		}
+		defer func() {
+			if err := checkoutBranch(repoDir, current); err != nil {
+				logger.WarnCF("git", "Failed to restore original branch after merge", map[string]any{
+					"branch": current,
+					"error":  err.Error(),
+				})
+			}
+		}()
+	}
+
+	res := MergeWorktreeBranch(repoDir, &WorktreeInfo{
+		Path:       wt.Path,
+		Branch:     wt.Branch,
+		BaseBranch: baseBranch,
+		RepoRoot:   repoDir,
+	})
+	return res, baseBranch, nil
+}
+
+// DisposeManagedWorktree removes a named worktree with SafeDispose.
+// When baseBranch is empty, DetectDefaultBranch(repoDir) is used.
+func DisposeManagedWorktree(repoDir, worktreesDir, name, baseBranch string) (DisposeResult, error) {
+	var zero DisposeResult
+
+	wt, err := GetManagedWorktree(repoDir, worktreesDir, name)
+	if err != nil {
+		return zero, err
+	}
+	if wt.Branch == "" {
+		return zero, fmt.Errorf("worktree %q has no branch", name)
+	}
+	if baseBranch == "" {
+		baseBranch = DetectDefaultBranch(repoDir)
+	}
+	if baseBranch == "" {
+		baseBranch = "main"
+	}
+	res := SafeDispose(repoDir, &WorktreeInfo{
+		Path:       wt.Path,
+		Branch:     wt.Branch,
+		BaseBranch: baseBranch,
+		RepoRoot:   repoDir,
+	})
+	return res, nil
+}
+
+// WorktreeStatusShort returns "git status --short" output for a worktree.
+func WorktreeStatusShort(worktreePath string) (string, error) {
+	cmd := exec.Command("git", "status", "--short")
+	cmd.Dir = worktreePath
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("git status --short: %s: %w", strings.TrimSpace(string(out)), err)
+	}
+	return strings.TrimSpace(string(out)), nil
+}
+
+// WorktreeRecentLog returns recent oneline commits for a worktree branch.
+func WorktreeRecentLog(worktreePath string, n int) (string, error) {
+	if n <= 0 {
+		n = 10
+	}
+	cmd := exec.Command("git", "log", "--oneline", fmt.Sprintf("-%d", n))
+	cmd.Dir = worktreePath
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("git log --oneline: %s: %w", strings.TrimSpace(string(out)), err)
+	}
+	return strings.TrimSpace(string(out)), nil
+}
+
+// WorktreeDiffStat returns a compact diff stat for a worktree.
+func WorktreeDiffStat(worktreePath string) (string, error) {
+	cmd := exec.Command("git", "diff", "--stat")
+	cmd.Dir = worktreePath
+	out, err := cmd.CombinedOutput()
+	if err != nil {
+		return "", fmt.Errorf("git diff --stat: %s: %w", strings.TrimSpace(string(out)), err)
+	}
+	return strings.TrimSpace(string(out)), nil
+}
+
+// DetectDefaultBranch returns the preferred base branch name for merges/dispose.
+func DetectDefaultBranch(repoDir string) string {
+	if localBranchExists(repoDir, "main") {
+		return "main"
+	}
+	if localBranchExists(repoDir, "master") {
+		return "master"
+	}
+
+	// Try origin/HEAD -> origin/<branch>
+	cmd := exec.Command("git", "symbolic-ref", "refs/remotes/origin/HEAD")
+	cmd.Dir = repoDir
+	if out, err := cmd.Output(); err == nil {
+		ref := strings.TrimSpace(string(out))
+		if idx := strings.LastIndex(ref, "/"); idx >= 0 && idx < len(ref)-1 {
+			return ref[idx+1:]
+		}
+	}
+
+	current := CurrentBranch(repoDir)
+	if current != "" && current != "HEAD" {
+		return current
+	}
+	return "main"
+}
+
+// PruneOrphaned removes stale worktree directories under worktreesDir.
+// For orphaned linked worktrees with uncommitted changes, it auto-commits before removal.
+func PruneOrphaned(repoDir, worktreesDir string) {
+	entries, err := os.ReadDir(worktreesDir)
+	if err != nil {
+		// Still attempt git's own metadata prune.
+		pruneCmd := exec.Command("git", "worktree", "prune")
+		pruneCmd.Dir = repoDir
+		pruneCmd.Run() // best-effort
 		return
 	}
 
+	active := map[string]bool{}
+	activeKnown := false
+	if activePaths, err := listGitWorktreePaths(repoDir); err == nil {
+		activeKnown = true
+		for _, p := range activePaths {
+			active[filepath.Clean(p)] = true
+		}
+	} else {
+		logger.WarnCF("git", "Skip linked-worktree prune: failed to enumerate active worktrees", map[string]any{
+			"error": err.Error(),
+		})
+	}
+
 	for _, entry := range entries {
 		if !entry.IsDir() {
 			continue
 		}
-		wtPath := filepath.Join(worktreesDir, entry.Name())
-		// Check if it's still a valid git worktree
-		checkCmd := exec.Command("git", "rev-parse", "--git-dir")
-		checkCmd.Dir = wtPath
-		if err := checkCmd.Run(); err != nil {
-			// Not a valid git worktree — remove
-			os.RemoveAll(wtPath)
+		wtPath := filepath.Clean(filepath.Join(worktreesDir, entry.Name()))
+
+		if !isLinkedWorktree(wtPath) {
+			_ = os.RemoveAll(wtPath)
+			continue
 		}
+		if !activeKnown {
+			continue
+		}
+		if active[wtPath] {
+			continue
+		}
+
+		// Orphaned linked worktree: protect changes before prune.
+		if HasUncommittedChanges(wtPath) {
+			if err := AutoCommit(wtPath, "auto-save before prune"); err != nil {
+				logger.WarnCF("git", "Skip pruning orphaned worktree: auto-commit failed", map[string]any{
+					"path":  wtPath,
+					"error": err.Error(),
+				})
+				continue
+			}
+			logger.InfoCF("git", "Auto-committed orphaned worktree before prune", map[string]any{"path": wtPath})
+		}
+
+		removeCmd := exec.Command("git", "worktree", "remove", "--force", wtPath)
+		removeCmd.Dir = repoDir
+		if out, err := removeCmd.CombinedOutput(); err != nil {
+			logger.WarnCF(
+				"git",
+				"git worktree remove failed for orphaned worktree; removing directory directly",
+				map[string]any{
+					"path":  wtPath,
+					"error": strings.TrimSpace(string(out)),
+				},
+			)
+			_ = os.RemoveAll(wtPath)
+			continue
+		}
+		logger.InfoCF("git", "Pruned orphaned worktree", map[string]any{"path": wtPath})
+	}
+
+	pruneCmd := exec.Command("git", "worktree", "prune")
+	pruneCmd.Dir = repoDir
+	if out, err := pruneCmd.CombinedOutput(); err != nil {
+		logger.WarnCF("git", "git worktree prune failed", map[string]any{"error": strings.TrimSpace(string(out))})
 	}
 }
 
@@ -266,3 +516,100 @@ func BranchBaseName(branch string) string {
 	}
 	return b.String()
 }
+
+func isSafeWorktreeName(name string) bool {
+	if name == "" || name == "." || name == ".." {
+		return false
+	}
+	if filepath.Base(name) != name {
+		return false
+	}
+	if strings.ContainsAny(name, `/\\`) {
+		return false
+	}
+	return true
+}
+
+func isLinkedWorktree(path string) bool {
+	gitPath := filepath.Join(path, ".git")
+	info, err := os.Stat(gitPath)
+	if err != nil {
+		return false
+	}
+	// Linked worktrees have a .git file (not a directory).
+	if info.IsDir() {
+		return false
+	}
+	cmd := exec.Command("git", "rev-parse", "--git-dir")
+	cmd.Dir = path
+	return cmd.Run() == nil
+}
+
+func buildManagedWorktree(repoDir, name, wtPath string) ManagedWorktree {
+	hash, subject, age := lastCommitInfo(wtPath)
+	return ManagedWorktree{
+		Name:              name,
+		Path:              wtPath,
+		Branch:            CurrentBranch(wtPath),
+		LastCommitHash:    hash,
+		LastCommitSubject: subject,
+		LastCommitAge:     age,
+		HasUncommitted:    HasUncommittedChanges(wtPath),
+	}
+}
+
+func lastCommitInfo(dir string) (hash, subject, age string) {
+	cmd := exec.Command("git", "log", "-1", "--pretty=format:%h\x1f%s\x1f%cr")
+	cmd.Dir = dir
+	out, err := cmd.Output()
+	if err != nil {
+		return "", "", ""
+	}
+	parts := strings.SplitN(strings.TrimSpace(string(out)), "\x1f", 3)
+	if len(parts) > 0 {
+		hash = parts[0]
+	}
+	if len(parts) > 1 {
+		subject = parts[1]
+	}
+	if len(parts) > 2 {
+		age = parts[2]
+	}
+	return hash, subject, age
+}
+
+func localBranchExists(repoDir, name string) bool {
+	cmd := exec.Command("git", "rev-parse", "--verify", "refs/heads/"+name)
+	cmd.Dir = repoDir
+	return cmd.Run() == nil
+}
+
+func checkoutBranch(repoDir, branch string) error {
+	cmd := exec.Command("git", "checkout", branch)
+	cmd.Dir = repoDir
+	if out, err := cmd.CombinedOutput(); err != nil {
+		return fmt.Errorf("git checkout %s: %s: %w", branch, strings.TrimSpace(string(out)), err)
+	}
+	return nil
+}
+
+func listGitWorktreePaths(repoDir string) ([]string, error) {
+	cmd := exec.Command("git", "worktree", "list", "--porcelain")
+	cmd.Dir = repoDir
+	out, err := cmd.Output()
+	if err != nil {
+		return nil, err
+	}
+	lines := strings.Split(string(out), "\n")
+	paths := make([]string, 0)
+	for _, line := range lines {
+		if !strings.HasPrefix(line, "worktree ") {
+			continue
+		}
+		p := strings.TrimSpace(strings.TrimPrefix(line, "worktree "))
+		if p != "" {
+			paths = append(paths, filepath.Clean(p))
+		}
+	}
+	return paths, nil
+}
diff --git a/pkg/git/worktree_test.go b/pkg/git/worktree_test.go
index a80db5376..ef0c1fe09 100644
--- a/pkg/git/worktree_test.go
+++ b/pkg/git/worktree_test.go
@@ -1,6 +1,7 @@
 package git
 
 import (
+	"errors"
 	"os"
 	"os/exec"
 	"path/filepath"
@@ -297,3 +298,135 @@ func TestPruneOrphaned(t *testing.T) {
 		t.Error("orphaned dir should have been removed")
 	}
 }
+
+func TestManagedWorktree_ListAndGet(t *testing.T) {
+	dir := initTestRepo(t)
+	worktreesDir := filepath.Join(dir, ".worktrees")
+	wtPath := filepath.Join(worktreesDir, "managed-list")
+
+	if _, err := CreateWorktree(dir, wtPath, "plan/managed-list"); err != nil {
+		t.Fatalf("CreateWorktree: %v", err)
+	}
+
+	items, err := ListManagedWorktrees(dir, worktreesDir)
+	if err != nil {
+		t.Fatalf("ListManagedWorktrees: %v", err)
+	}
+	if len(items) != 1 {
+		t.Fatalf("expected 1 managed worktree, got %d", len(items))
+	}
+	if items[0].Name != "managed-list" {
+		t.Errorf("Name = %q, want %q", items[0].Name, "managed-list")
+	}
+	if items[0].Branch != "plan/managed-list" {
+		t.Errorf("Branch = %q, want %q", items[0].Branch, "plan/managed-list")
+	}
+	if items[0].Path != wtPath {
+		t.Errorf("Path = %q, want %q", items[0].Path, wtPath)
+	}
+	if items[0].HasUncommitted {
+		t.Error("HasUncommitted should be false for clean worktree")
+	}
+
+	if _, err := GetManagedWorktree(dir, worktreesDir, "../bad"); !errors.Is(err, ErrInvalidWorktreeName) {
+		t.Fatalf("expected ErrInvalidWorktreeName, got %v", err)
+	}
+	if _, err := GetManagedWorktree(dir, worktreesDir, "missing"); !errors.Is(err, ErrWorktreeNotFound) {
+		t.Fatalf("expected ErrWorktreeNotFound, got %v", err)
+	}
+}
+
+func TestMergeManagedWorktree(t *testing.T) {
+	dir := initTestRepo(t)
+	baseBranch := CurrentBranch(dir)
+	worktreesDir := filepath.Join(dir, ".worktrees")
+	wtPath := filepath.Join(worktreesDir, "managed-merge")
+
+	if _, err := CreateWorktree(dir, wtPath, "plan/managed-merge"); err != nil {
+		t.Fatalf("CreateWorktree: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(wtPath, "merged-managed.txt"), []byte("hello"), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+	if err := AutoCommit(wtPath, "add merged-managed.txt"); err != nil {
+		t.Fatalf("AutoCommit: %v", err)
+	}
+
+	res, usedBase, err := MergeManagedWorktree(dir, worktreesDir, "managed-merge", "")
+	if err != nil {
+		t.Fatalf("MergeManagedWorktree: %v", err)
+	}
+	if usedBase == "" {
+		t.Fatal("used base branch should not be empty")
+	}
+	if !res.Merged {
+		t.Fatal("expected Merged=true")
+	}
+	if res.Conflict {
+		t.Fatal("expected Conflict=false")
+	}
+	if _, err := os.Stat(filepath.Join(dir, "merged-managed.txt")); os.IsNotExist(err) {
+		t.Fatal("merged-managed.txt should exist after merge")
+	}
+	if branch := CurrentBranch(dir); branch != baseBranch {
+		t.Errorf("CurrentBranch after merge = %q, want %q", branch, baseBranch)
+	}
+}
+
+func TestDisposeManagedWorktree(t *testing.T) {
+	dir := initTestRepo(t)
+	worktreesDir := filepath.Join(dir, ".worktrees")
+	wtPath := filepath.Join(worktreesDir, "managed-dispose")
+
+	if _, err := CreateWorktree(dir, wtPath, "plan/managed-dispose"); err != nil {
+		t.Fatalf("CreateWorktree: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(wtPath, "dirty.txt"), []byte("dirty"), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+
+	res, err := DisposeManagedWorktree(dir, worktreesDir, "managed-dispose", "")
+	if err != nil {
+		t.Fatalf("DisposeManagedWorktree: %v", err)
+	}
+	if !res.AutoCommitted {
+		t.Error("AutoCommitted should be true")
+	}
+	if res.CommitsAhead != 1 {
+		t.Errorf("CommitsAhead = %d, want 1", res.CommitsAhead)
+	}
+	if res.BranchDeleted {
+		t.Error("BranchDeleted should be false when branch has unique commits")
+	}
+	if _, err := os.Stat(wtPath); !os.IsNotExist(err) {
+		t.Fatalf("worktree dir should be removed, stat err: %v", err)
+	}
+}
+
+func TestPruneOrphaned_AutoCommitBeforeRemoval(t *testing.T) {
+	dir := initTestRepo(t)
+	baseBranch := CurrentBranch(dir)
+	worktreesDir := filepath.Join(dir, ".worktrees")
+	wtPath := filepath.Join(worktreesDir, "prune-autosave")
+
+	wt, err := CreateWorktree(dir, wtPath, "plan/prune-autosave")
+	if err != nil {
+		t.Fatalf("CreateWorktree: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(wtPath, "autosave.txt"), []byte("autosave"), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+	if !HasUncommittedChanges(wtPath) {
+		t.Fatal("worktree should have uncommitted changes")
+	}
+
+	otherRepo := initTestRepo(t)
+	PruneOrphaned(otherRepo, worktreesDir)
+
+	if _, err := os.Stat(wtPath); !os.IsNotExist(err) {
+		t.Fatalf("worktree dir should be removed, stat err: %v", err)
+	}
+	if ahead := CommitsAhead(dir, baseBranch, wt.Branch); ahead != 1 {
+		t.Fatalf("CommitsAhead = %d, want 1 (auto-commit should be preserved)", ahead)
+	}
+}
diff --git a/pkg/miniapp/api.go b/pkg/miniapp/api.go
index a385c8a54..69c90e56a 100644
--- a/pkg/miniapp/api.go
+++ b/pkg/miniapp/api.go
@@ -3,11 +3,15 @@ package miniapp
 import (
 	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"io"
 	"net/http"
+	"path/filepath"
 	"strings"
 	"time"
+
+	"github.com/sipeed/picoclaw/pkg/git"
 )
 
 func (h *Handler) apiSkills(w http.ResponseWriter, r *http.Request) {
@@ -54,6 +58,109 @@ func (h *Handler) apiGit(w http.ResponseWriter, r *http.Request) {
 	}
 }
 
+func (h *Handler) apiWorktrees(w http.ResponseWriter, r *http.Request) {
+	repoRoot := git.FindRepoRoot(h.workspace)
+	if repoRoot == "" {
+		http.Error(w, `{"error":"workspace is not a git repository"}`, http.StatusBadRequest)
+		return
+	}
+	worktreesDir := filepath.Join(h.workspace, ".worktrees")
+
+	switch r.Method {
+	case http.MethodGet:
+		items, err := git.ListManagedWorktrees(repoRoot, worktreesDir)
+		if err != nil {
+			http.Error(w, `{"error":"failed to list worktrees"}`, http.StatusInternalServerError)
+			return
+		}
+		writeJSON(w, items)
+
+	case http.MethodPost:
+		body, err := io.ReadAll(io.LimitReader(r.Body, 4096))
+		if err != nil {
+			http.Error(w, `{"error":"bad request"}`, http.StatusBadRequest)
+			return
+		}
+
+		var req struct {
+			Action     string `json:"action"`
+			Name       string `json:"name"`
+			Force      bool   `json:"force"`
+			BaseBranch string `json:"base_branch"`
+		}
+		if err := json.Unmarshal(body, &req); err != nil {
+			http.Error(w, `{"error":"invalid JSON"}`, http.StatusBadRequest)
+			return
+		}
+
+		req.Action = strings.ToLower(strings.TrimSpace(req.Action))
+		req.Name = strings.TrimSpace(req.Name)
+		req.BaseBranch = strings.TrimSpace(req.BaseBranch)
+		if req.Action == "" || req.Name == "" {
+			http.Error(w, `{"error":"action and name are required"}`, http.StatusBadRequest)
+			return
+		}
+
+		switch req.Action {
+		case "merge":
+			res, baseBranch, err := git.MergeManagedWorktree(repoRoot, worktreesDir, req.Name, req.BaseBranch)
+			if err != nil {
+				if writeWorktreeAPIError(w, err) {
+					return
+				}
+				http.Error(w, `{"error":"merge failed"}`, http.StatusInternalServerError)
+				return
+			}
+			writeJSON(w, map[string]any{
+				"status":      "ok",
+				"action":      "merge",
+				"name":        req.Name,
+				"base_branch": baseBranch,
+				"result":      res,
+			})
+
+		case "dispose":
+			wt, err := git.GetManagedWorktree(repoRoot, worktreesDir, req.Name)
+			if err != nil {
+				if writeWorktreeAPIError(w, err) {
+					return
+				}
+				http.Error(w, `{"error":"failed to inspect worktree"}`, http.StatusInternalServerError)
+				return
+			}
+			if wt.HasUncommitted && !req.Force {
+				http.Error(
+					w,
+					`{"error":"worktree has uncommitted changes; retry with force=true"}`,
+					http.StatusConflict,
+				)
+				return
+			}
+
+			res, err := git.DisposeManagedWorktree(repoRoot, worktreesDir, req.Name, req.BaseBranch)
+			if err != nil {
+				if writeWorktreeAPIError(w, err) {
+					return
+				}
+				http.Error(w, `{"error":"dispose failed"}`, http.StatusInternalServerError)
+				return
+			}
+			writeJSON(w, map[string]any{
+				"status": "ok",
+				"action": "dispose",
+				"name":   req.Name,
+				"result": res,
+			})
+
+		default:
+			http.Error(w, `{"error":"unknown action"}`, http.StatusBadRequest)
+		}
+
+	default:
+		http.Error(w, `{"error":"method not allowed"}`, http.StatusMethodNotAllowed)
+	}
+}
+
 func (h *Handler) apiCommand(w http.ResponseWriter, r *http.Request) {
 	if r.Method != http.MethodPost {
 		http.Error(w, `{"error":"method not allowed"}`, http.StatusMethodNotAllowed)
@@ -159,4 +266,17 @@ func writeJSON(w http.ResponseWriter, v any) {
 	json.NewEncoder(w).Encode(v)
 }
 
+func writeWorktreeAPIError(w http.ResponseWriter, err error) bool {
+	switch {
+	case errors.Is(err, git.ErrInvalidWorktreeName):
+		http.Error(w, `{"error":"invalid worktree name"}`, http.StatusBadRequest)
+		return true
+	case errors.Is(err, git.ErrWorktreeNotFound):
+		http.Error(w, `{"error":"worktree not found"}`, http.StatusNotFound)
+		return true
+	default:
+		return false
+	}
+}
+
 // apiDevConsole receives console output from dev preview iframes.
diff --git a/pkg/miniapp/miniapp.go b/pkg/miniapp/miniapp.go
index 1a0e05e04..7ed3c0403 100644
--- a/pkg/miniapp/miniapp.go
+++ b/pkg/miniapp/miniapp.go
@@ -76,6 +76,7 @@ func (h *Handler) RegisterRoutes(mux *http.ServeMux) {
 	mux.HandleFunc("/miniapp/api/context", h.requireAuth(h.apiContext))
 	mux.HandleFunc("/miniapp/api/prompt", h.requireAuth(h.apiPrompt))
 	mux.HandleFunc("/miniapp/api/git", h.requireAuth(h.apiGit))
+	mux.HandleFunc("/miniapp/api/worktrees", h.requireAuth(h.apiWorktrees))
 	mux.HandleFunc("/miniapp/api/dev", h.requireAuth(h.apiDev))
 	mux.HandleFunc("/miniapp/api/events", h.requireAuth(h.apiEvents))
 	mux.HandleFunc("/miniapp/api/logs/ws", h.requireAuth(h.wsLogs))
diff --git a/pkg/miniapp/miniapp_test.go b/pkg/miniapp/miniapp_test.go
index f1dc1e74a..218927756 100644
--- a/pkg/miniapp/miniapp_test.go
+++ b/pkg/miniapp/miniapp_test.go
@@ -11,6 +11,9 @@ import (
 	"net/http"
 	"net/http/httptest"
 	"net/url"
+	"os"
+	"os/exec"
+	"path/filepath"
 	"runtime"
 	"sort"
 	"strconv"
@@ -19,6 +22,7 @@ import (
 	"testing"
 	"time"
 
+	gitpkg "github.com/sipeed/picoclaw/pkg/git"
 	"github.com/sipeed/picoclaw/pkg/skills"
 	"github.com/sipeed/picoclaw/pkg/stats"
 )
@@ -2072,3 +2076,135 @@ func drainEvents(t *testing.T, scanner *bufio.Scanner, want int, timeout time.Du
 	}
 	return events
 }
+
+func initMiniAppGitRepo(t *testing.T) string {
+	t.Helper()
+	repo := t.TempDir()
+
+	runGit := func(dir string, args ...string) {
+		t.Helper()
+		cmd := exec.Command("git", args...)
+		cmd.Dir = dir
+		if out, err := cmd.CombinedOutput(); err != nil {
+			t.Fatalf("git %s: %s: %v", strings.Join(args, " "), strings.TrimSpace(string(out)), err)
+		}
+	}
+
+	runGit(repo, "init")
+	runGit(repo, "config", "user.email", "test@test.com")
+	runGit(repo, "config", "user.name", "Test")
+
+	if err := os.WriteFile(filepath.Join(repo, "README.md"), []byte("# Test\n"), 0o644); err != nil {
+		t.Fatalf("WriteFile: %v", err)
+	}
+	runGit(repo, "add", "-A")
+	runGit(repo, "commit", "-m", "initial")
+
+	return repo
+}
+
+func TestAPIWorktrees_List(t *testing.T) {
+	repo := initMiniAppGitRepo(t)
+	wtPath := filepath.Join(repo, ".worktrees", "api-list")
+	if _, err := gitpkg.CreateWorktree(repo, wtPath, "plan/api-list"); err != nil {
+		t.Fatalf("CreateWorktree: %v", err)
+	}
+
+	h := NewHandler(&mockDataProvider{}, &mockSender{}, testBotToken, NewStateNotifier(), nil, repo)
+	mux := http.NewServeMux()
+	h.RegisterRoutes(mux)
+
+	req := httptest.NewRequest("GET", "/miniapp/api/worktrees?initData="+url.QueryEscape(testInitData()), nil)
+	w := httptest.NewRecorder()
+	mux.ServeHTTP(w, req)
+
+	if w.Code != http.StatusOK {
+		t.Fatalf("expected 200, got %d: %s", w.Code, w.Body.String())
+	}
+
+	var items []struct {
+		Name   string `json:"name"`
+		Branch string `json:"branch"`
+	}
+	if err := json.Unmarshal(w.Body.Bytes(), &items); err != nil {
+		t.Fatalf("json.Unmarshal: %v", err)
+	}
+	if len(items) != 1 {
+		t.Fatalf("expected 1 worktree, got %d", len(items))
+	}
+	if items[0].Name != "api-list" {
+		t.Errorf("Name = %q, want %q", items[0].Name, "api-list")
+	}
+	if items[0].Branch != "plan/api-list" {
+		t.Errorf("Branch = %q, want %q", items[0].Branch, "plan/api-list")
+	}
+}
+
+func TestAPIWorktrees_MergeAndDispose(t *testing.T) {
+	repo := initMiniAppGitRepo(t)
+
+	mergePath := filepath.Join(repo, ".worktrees", "api-merge")
+	if _, err := gitpkg.CreateWorktree(repo, mergePath, "plan/api-merge"); err != nil {
+		t.Fatalf("CreateWorktree merge: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(mergePath, "merged.txt"), []byte("from worktree"), 0o644); err != nil {
+		t.Fatalf("WriteFile merge: %v", err)
+	}
+	if err := gitpkg.AutoCommit(mergePath, "add merged.txt"); err != nil {
+		t.Fatalf("AutoCommit merge: %v", err)
+	}
+
+	disposePath := filepath.Join(repo, ".worktrees", "api-dispose")
+	if _, err := gitpkg.CreateWorktree(repo, disposePath, "plan/api-dispose"); err != nil {
+		t.Fatalf("CreateWorktree dispose: %v", err)
+	}
+	if err := os.WriteFile(filepath.Join(disposePath, "dirty.txt"), []byte("dirty"), 0o644); err != nil {
+		t.Fatalf("WriteFile dispose: %v", err)
+	}
+
+	h := NewHandler(&mockDataProvider{}, &mockSender{}, testBotToken, NewStateNotifier(), nil, repo)
+	mux := http.NewServeMux()
+	h.RegisterRoutes(mux)
+
+	mergeReq := httptest.NewRequest(
+		http.MethodPost,
+		"/miniapp/api/worktrees?initData="+url.QueryEscape(testInitData()),
+		strings.NewReader(`{"action":"merge","name":"api-merge"}`),
+	)
+	mergeReq.Header.Set("Content-Type", "application/json")
+	mergeW := httptest.NewRecorder()
+	mux.ServeHTTP(mergeW, mergeReq)
+	if mergeW.Code != http.StatusOK {
+		t.Fatalf("merge expected 200, got %d: %s", mergeW.Code, mergeW.Body.String())
+	}
+	if _, err := os.Stat(filepath.Join(repo, "merged.txt")); os.IsNotExist(err) {
+		t.Fatal("merged.txt should exist after merge")
+	}
+
+	disposeReq := httptest.NewRequest(
+		http.MethodPost,
+		"/miniapp/api/worktrees?initData="+url.QueryEscape(testInitData()),
+		strings.NewReader(`{"action":"dispose","name":"api-dispose"}`),
+	)
+	disposeReq.Header.Set("Content-Type", "application/json")
+	disposeW := httptest.NewRecorder()
+	mux.ServeHTTP(disposeW, disposeReq)
+	if disposeW.Code != http.StatusConflict {
+		t.Fatalf("dispose without force expected 409, got %d: %s", disposeW.Code, disposeW.Body.String())
+	}
+
+	disposeForceReq := httptest.NewRequest(
+		http.MethodPost,
+		"/miniapp/api/worktrees?initData="+url.QueryEscape(testInitData()),
+		strings.NewReader(`{"action":"dispose","name":"api-dispose","force":true}`),
+	)
+	disposeForceReq.Header.Set("Content-Type", "application/json")
+	disposeForceW := httptest.NewRecorder()
+	mux.ServeHTTP(disposeForceW, disposeForceReq)
+	if disposeForceW.Code != http.StatusOK {
+		t.Fatalf("dispose with force expected 200, got %d: %s", disposeForceW.Code, disposeForceW.Body.String())
+	}
+	if _, err := os.Stat(disposePath); !os.IsNotExist(err) {
+		t.Fatalf("worktree dir should be removed, stat err: %v", err)
+	}
+}
diff --git a/pkg/miniapp/static/index.html b/pkg/miniapp/static/index.html
index 410daa7db..13e46de78 100644
--- a/pkg/miniapp/static/index.html
+++ b/pkg/miniapp/static/index.html
@@ -633,6 +633,90 @@
   }
   .git-back-btn:active { opacity: 0.6; }
 
+  .worktree-list {
+    margin-top: 8px;
+    display: flex;
+    flex-direction: column;
+    gap: 8px;
+  }
+  .worktree-item {
+    display: flex;
+    align-items: flex-start;
+    gap: 10px;
+    padding: 10px;
+    border-radius: 12px;
+    border: 1px solid var(--glass-border);
+    background: var(--glass-bg);
+  }
+  .worktree-item.dirty {
+    border-color: rgba(255, 152, 0, 0.45);
+  }
+  .worktree-main {
+    flex: 1;
+    min-width: 0;
+  }
+  .worktree-name-row {
+    display: flex;
+    align-items: center;
+    gap: 6px;
+    margin-bottom: 4px;
+  }
+  .worktree-name {
+    font-size: 14px;
+    font-weight: 600;
+    word-break: break-word;
+  }
+  .worktree-branch {
+    font-family: monospace;
+    font-size: 12px;
+    color: var(--hint);
+    margin-bottom: 3px;
+  }
+  .worktree-last {
+    font-size: 11px;
+    color: var(--hint);
+    white-space: nowrap;
+    overflow: hidden;
+    text-overflow: ellipsis;
+  }
+  .worktree-dirty,
+  .worktree-clean {
+    font-size: 10px;
+    font-weight: 700;
+    padding: 2px 6px;
+    border-radius: 999px;
+  }
+  .worktree-dirty {
+    color: #c26b00;
+    background: rgba(255, 152, 0, 0.2);
+  }
+  .worktree-clean {
+    color: #1b8f3a;
+    background: rgba(76, 175, 80, 0.18);
+  }
+  .worktree-actions {
+    display: flex;
+    flex-direction: column;
+    gap: 6px;
+    flex-shrink: 0;
+  }
+  .worktree-btn {
+    border: 1px solid var(--glass-border-interactive);
+    background: var(--glass-bg);
+    color: var(--text);
+    border-radius: 8px;
+    padding: 6px 10px;
+    font-size: 12px;
+    font-weight: 600;
+    cursor: pointer;
+    min-width: 74px;
+  }
+  .worktree-btn.merge { color: var(--btn); }
+  .worktree-btn.dispose { color: #d14b4b; }
+  .worktree-btn:disabled {
+    opacity: 0.6;
+    cursor: default;
+  }
   /* Dev header */
   .dev-header {
     display: flex;
@@ -1498,23 +1582,72 @@ var gitSelectedRepo = null;
 
 function loadGit() {
   gitSelectedRepo = null;
-  return loadTab('git-loading', 'git-content', 'repositories',
-    function() { return apiFetch('/miniapp/api/git'); },
-    renderGitRepos);
+  return loadTab('git-loading', 'git-content', 'git',
+    function() {
+      return Promise.all([
+        apiFetch('/miniapp/api/git'),
+        apiFetch('/miniapp/api/worktrees').catch(function() { return []; }),
+      ]);
+    },
+    function(results) {
+      renderGitRepos(results[0], results[1]);
+    });
 }
 
-function renderGitRepos(repos) {
+function renderWorktrees(worktrees) {
+  var items = Array.isArray(worktrees) ? worktrees : [];
+  var html = '<div class="card glass"><div class="card-title">Worktrees</div>';
+
+  if (items.length === 0) {
+    html += '<div class="empty-state" style="padding:12px 0 4px">No active worktrees.</div>';
+    html += '</div>';
+    return html;
+  }
+
+  html += '<div class="worktree-list">';
+  items.forEach(function(wt) {
+    var dirtyClass = wt.has_uncommitted ? ' dirty' : '';
+    var dirtyBadge = wt.has_uncommitted ? '<span class="worktree-dirty">DIRTY</span>' : '<span class="worktree-clean">CLEAN</span>';
+    var last = '(no commits)';
+    if (wt.last_commit_hash) {
+      last = wt.last_commit_hash + ' ' + (wt.last_commit_subject || '');
+      if (wt.last_commit_age) last += ' (' + wt.last_commit_age + ')';
+    }
+    html += '<div class="worktree-item' + dirtyClass + '">' +
+      '<div class="worktree-main">' +
+        '<div class="worktree-name-row">' +
+          '<span class="worktree-name">' + escapeHtml(wt.name) + '</span>' +
+          dirtyBadge +
+        '</div>' +
+        '<div class="worktree-branch">' + escapeHtml(wt.branch || '?') + '</div>' +
+        '<div class="worktree-last">' + escapeHtml(last) + '</div>' +
+      '</div>' +
+      '<div class="worktree-actions">' +
+        '<button class="worktree-btn merge" data-wt-action="merge" data-wt-name="' + escapeAttr(wt.name) + '">Merge</button>' +
+        '<button class="worktree-btn dispose" data-wt-action="dispose" data-wt-name="' + escapeAttr(wt.name) + '" data-wt-dirty="' + (wt.has_uncommitted ? '1' : '0') + '">Dispose</button>' +
+      '</div>' +
+    '</div>';
+  });
+  html += '</div></div>';
+  return html;
+}
+
+function renderGitRepos(repos, worktrees) {
   var loading = document.getElementById('git-loading');
   var el = document.getElementById('git-content');
   loading.classList.add('hidden');
   el.classList.remove('hidden');
 
+  var html = renderWorktrees(worktrees);
+
   if (!repos || repos.length === 0) {
-    el.innerHTML = '<div class="empty-state">No git repositories found.</div>';
+    html += '<div class="empty-state" style="margin-top:12px">No git repositories found.</div>';
+    el.innerHTML = html;
     return;
   }
 
-  el.innerHTML = repos.map(function(r) {
+  html += '<div style="padding:10px 4px 8px;font-size:12px;color:var(--hint)">Repositories</div>';
+  html += repos.map(function(r) {
     return '<div class="git-repo-item glass glass-interactive" data-repo="' + escapeAttr(r.name) + '">' +
       '<div class="git-repo-body">' +
         '<div class="git-repo-name">' + escapeHtml(r.name) + '</div>' +
@@ -1523,9 +1656,57 @@ function renderGitRepos(repos) {
       '<span class="git-repo-arrow">\u203A</span>' +
     '</div>';
   }).join('');
+
+  el.innerHTML = html;
 }
 
-document.getElementById('git-content').addEventListener('click', function(e) {
+async function postWorktreeAction(action, name, force) {
+  var res = await fetch(API_BASE + '/miniapp/api/worktrees?initData=' + encodeURIComponent(initData), {
+    method: 'POST',
+    headers: { 'Content-Type': 'application/json' },
+    body: JSON.stringify({ action: action, name: name, force: !!force }),
+  });
+  var data = {};
+  try { data = await res.json(); } catch (e) {}
+  if (!res.ok) {
+    throw new Error(data.error || ('API error: ' + res.status));
+  }
+  return data;
+}
+
+document.getElementById('git-content').addEventListener('click', async function(e) {
+  var wtBtn = e.target.closest('[data-wt-action]');
+  if (wtBtn) {
+    var action = wtBtn.dataset.wtAction;
+    var name = wtBtn.dataset.wtName;
+    var isDirty = wtBtn.dataset.wtDirty === '1';
+    var force = false;
+
+    if (action === 'merge') {
+      if (!confirm('Merge "' + name + '" into base branch?')) return;
+    } else if (action === 'dispose') {
+      if (isDirty) {
+        if (!confirm('"' + name + '" has uncommitted changes. Force dispose and auto-commit before removal?')) return;
+        force = true;
+      } else if (!confirm('Dispose worktree "' + name + '"?')) {
+        return;
+      }
+    }
+
+    var originalText = wtBtn.textContent;
+    wtBtn.disabled = true;
+    wtBtn.textContent = action === 'merge' ? 'Merging...' : 'Disposing...';
+    try {
+      await postWorktreeAction(action, name, force);
+      await loadGit();
+    } catch (err) {
+      alert(err.message || 'Action failed');
+      wtBtn.disabled = false;
+      wtBtn.textContent = originalText;
+    }
+    return;
+  }
+
   var item = e.target.closest('.git-repo-item');
   if (!item) return;
   loadGitDetail(item.dataset.repo);