Copy slash commands into worktrees on creation

When mobs_dir is external, git worktree add doesn't include
untracked .claude/commands/ files (they're globally gitignored).
Copy mob-*.md and codemob-*.md from the main repo into each new
worktree so agents have access to slash commands.

Author: blipinsk

cmd/root.go

@@ -289,6 +289,8 @@ func createMob(root string, cfg *mob.Config, name, agent string) (string, error)
 		return "", err
 	}
 
+	mob.CopySlashCommands(root, worktreePath)
+
 	cfg.Mobs = append(cfg.Mobs, mob.Mob{
 		Name:      name,
 		Branch:    branch,

internal/mob/init.go

@@ -590,6 +590,27 @@ func setupClaudeCommands(repoRoot string, multipleAgents bool) {
 	}
 }
 
+func CopySlashCommands(srcRoot, destRoot string) {
+	srcDir := filepath.Join(srcRoot, ".claude", "commands")
+	destDir := filepath.Join(destRoot, ".claude", "commands")
+
+	for _, prefix := range []string{"mob-", "codemob-"} {
+		matches, _ := filepath.Glob(filepath.Join(srcDir, prefix+"*.md"))
+		if len(matches) == 0 {
+			continue
+		}
+		os.MkdirAll(destDir, 0755)
+		for _, src := range matches {
+			data, err := os.ReadFile(src)
+			if err != nil {
+				continue
+			}
+			dest := filepath.Join(destDir, filepath.Base(src))
+			os.WriteFile(dest, data, 0644)
+		}
+	}
+}
+
 func setupCodexPrompts(multipleAgents bool) {
 	promptsDir := filepath.Join(os.Getenv("HOME"), ".codex", "prompts")
 	os.MkdirAll(promptsDir, 0755)

internal/mob/integration_test.go

@@ -1452,3 +1452,35 @@ func TestPurgeExternalMobs(t *testing.T) {
 		t.Errorf("expected 0 mobs after purge, got %d", len(mobs))
 	}
 }
+
+func TestSlashCommandsCopiedToExternalWorktree(t *testing.T) {
+	bin := buildCore(t)
+	_, repoPath := setupTestRepo(t)
+	initRepoWithMobsDir(t, bin, repoPath, "2")
+
+	// given -> slash commands exist in the main repo's .claude/commands/
+	srcCommands := filepath.Join(repoPath, ".claude", "commands")
+	expectedFiles := []string{
+		"mob-list.md", "mob-new.md", "mob-switch.md", "mob-remove.md", "mob-drop.md",
+		"codemob-list.md", "codemob-new.md", "codemob-switch.md", "codemob-remove.md", "codemob-drop.md",
+	}
+	for _, name := range expectedFiles {
+		if _, err := os.Stat(filepath.Join(srcCommands, name)); err != nil {
+			t.Fatalf("precondition: slash command %s missing from main repo: %v", name, err)
+		}
+	}
+
+	// when -> create a mob (worktree will be external)
+	runCore(t, bin, repoPath, "new", "cmd-test", "--no-launch")
+
+	repoName := filepath.Base(repoPath)
+	worktreePath := filepath.Join(filepath.Dir(repoPath), ".codemob", repoName, "mobs", "cmd-test")
+
+	// then -> slash commands should exist in the worktree's .claude/commands/
+	destCommands := filepath.Join(worktreePath, ".claude", "commands")
+	for _, name := range expectedFiles {
+		if _, err := os.Stat(filepath.Join(destCommands, name)); err != nil {
+			t.Errorf("slash command %s not copied to worktree: %v", name, err)
+		}
+	}
+}