worktree

name	worktree
version	1.0.0
description	[Git] Use when you need to create isolated git worktree for parallel development.
disable-model-invocation	false

Quick Summary

Goal: Create isolated git worktrees for parallel feature development with automatic branch naming and env file setup.

Workflow:

1. Get Repo Info — Run worktree.cjs info to detect repo type, base branch, env files
2. Detect Prefix — Infer branch prefix from keywords (fix, feat, refactor, docs, etc.)
3. Convert Slug — Transform description to kebab-case slug (max 50 chars)
4. Execute — Run worktree.cjs create with project, slug, prefix, and env files

Key Rules:

• For monorepos, ask user which project if not specified
• Always ask which env files to copy via AskUserQuestion
• Handle error codes (BRANCH_CHECKED_OUT, WORKTREE_EXISTS, etc.) gracefully

Be skeptical. Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence percentages (Idea should be more than 80%).

Create an isolated git worktree for parallel feature development.

Workflow

Step 1: Get Repository Info

node .claude/scripts/worktree.cjs info --json

Response fields:

• repoType: "monorepo" or "standalone"
• baseBranch: detected base branch
• projects: array of {name, path} for monorepo
• envFiles: array of .env* files found
• dirtyState: boolean

Step 2: Gather Info via AskUserQuestion

Detect branch prefix from user's description:

• Keywords "fix", "bug", "error", "issue" → prefix = fix
• Keywords "refactor", "restructure", "rewrite" → prefix = refactor
• Keywords "docs", "documentation", "readme" → prefix = docs
• Keywords "test", "spec", "coverage" → prefix = test
• Keywords "chore", "cleanup", "deps" → prefix = chore
• Keywords "perf", "performance", "optimize" → prefix = perf
• Everything else → prefix = feat

For MONOREPO: Use AskUserQuestion if project not specified:

// If user said "/worktree add auth" but multiple projects exist
AskUserQuestion({
    questions: [
        {
            header: 'Project',
            question: 'Which project should the worktree be created for?',
            options: projects.map(p => ({ label: p.name, description: p.path })),
            multiSelect: false
        }
    ]
});

For env files: Always ask which to copy:

AskUserQuestion({
    questions: [
        {
            header: 'Env files',
            question: 'Which environment files should be copied to the worktree?',
            options: envFiles.map(f => ({ label: f, description: 'Copy to worktree' })),
            multiSelect: true
        }
    ]
});

Step 3: Convert Description to Slug

• "add authentication system" → add-auth
• "fix login bug" → login-bug
• Remove filler words, kebab-case, max 50 chars

Step 4: Execute Command

Monorepo:

node .claude/scripts/worktree.cjs create "<PROJECT>" "<SLUG>" --prefix <TYPE> --env "<FILES>"

Standalone:

node .claude/scripts/worktree.cjs create "<SLUG>" --prefix <TYPE> --env "<FILES>"

Options:

• --prefix - Branch type: feat|fix|refactor|docs|test|chore|perf
• --env - Comma-separated .env files to copy
• --json - Output JSON for parsing
• --dry-run - Preview without executing

Commands

Command	Usage	Description
create	create [project] <feature>	Create new worktree
remove	remove <name-or-path>	Remove worktree and branch
info	info	Get repo info
list	list	List existing worktrees

Error Codes

Code	Meaning	Action
MISSING_ARGS	Missing project/feature for monorepo	Ask for both
MISSING_FEATURE	No feature name (standalone)	Ask for feature
PROJECT_NOT_FOUND	Project not in .gitmodules	Show available projects
MULTIPLE_PROJECTS_MATCH	Ambiguous project name	Use AskUserQuestion
MULTIPLE_WORKTREES_MATCH	Ambiguous worktree for remove	Use AskUserQuestion
BRANCH_CHECKED_OUT	Branch in use elsewhere	Suggest different name
WORKTREE_EXISTS	Path already exists	Suggest use or remove
WORKTREE_CREATE_FAILED	Git command failed	Show git error
WORKTREE_REMOVE_FAILED	Cannot remove worktree	Check uncommitted changes

Example Session

User: /worktree fix the login validation bug

Claude: [Runs: node .claude/scripts/worktree.cjs info --json]
        [Detects: standalone repo, envFiles: [".env.example"]]
        [Detects prefix from "fix" keyword: fix]
        [Converts slug: "login-validation-bug"]

Claude: [Uses AskUserQuestion for env files]
        "Which environment files should be copied?"
        Options: .env.example

User: .env.example

Claude: [Runs: node .claude/scripts/worktree.cjs create "login-validation-bug" --prefix fix --env ".env.example"]

Output: Worktree created at ../worktrees/myrepo-login-validation-bug
        Branch: fix/login-validation-bug

---

[IMPORTANT] Use TaskCreate to break ALL work into small tasks BEFORE starting — including tasks for each file read. This prevents context loss from long files. For simple tasks, AI MUST ATTENTION ask user whether to skip.

AI Mistake Prevention — Failure modes to avoid on every task:

Check downstream references before deleting. Deleting components causes documentation and code staleness cascades. Map all referencing files before removal. Verify AI-generated content against actual code. AI hallucinates APIs, class names, and method signatures. Always grep to confirm existence before documenting or referencing. Trace full dependency chain after edits. Changing a definition misses downstream variables and consumers derived from it. Always trace the full chain. Trace ALL code paths when verifying correctness. Confirming code exists is not confirming it executes. Always trace early exits, error branches, and conditional skips — not just happy path. When debugging, ask "whose responsibility?" before fixing. Trace whether bug is in caller (wrong data) or callee (wrong handling). Fix at responsible layer — never patch symptom site. Assume existing values are intentional — ask WHY before changing. Before changing any constant, limit, flag, or pattern: read comments, check git blame, examine surrounding code. Verify ALL affected outputs, not just the first. Changes touching multiple stacks require verifying EVERY output. One green check is not all green checks. Holistic-first debugging — resist nearest-attention trap. When investigating any failure, list EVERY precondition first (config, env vars, DB names, endpoints, DI registrations, data preconditions), then verify each against evidence before forming any code-layer hypothesis. Surgical changes — apply the diff test. Bug fix: every changed line must trace directly to the bug. Don't restyle or improve adjacent code. Enhancement task: implement improvements AND announce them explicitly. Surface ambiguity before coding — don't pick silently. If request has multiple interpretations, present each with effort estimate and ask. Never assume all-records, file-based, or more complex path.

Critical Thinking Mindset — Apply critical thinking, sequential thinking. Every claim needs traced proof, confidence >80% to act. Anti-hallucination: Never present guess as fact — cite sources for every claim, admit uncertainty freely, self-check output for errors, cross-reference independently, stay skeptical of own confidence — certainty without evidence root of all hallucination.

MUST ATTENTION apply critical thinking — every claim needs traced proof, confidence >80% to act. Anti-hallucination: never present guess as fact.

MUST ATTENTION apply AI mistake prevention — holistic-first debugging, fix at responsible layer, surface ambiguity before coding, re-read files after compaction.

Closing Reminders

IMPORTANT MUST ATTENTION break work into small todo tasks using TaskCreate BEFORE starting IMPORTANT MUST ATTENTION search codebase for 3+ similar patterns before creating new code IMPORTANT MUST ATTENTION cite file:line evidence for every claim (confidence >80% to act) IMPORTANT MUST ATTENTION add a final review todo task to verify work quality

[TASK-PLANNING] Before acting, analyze task scope and systematically break it into small todo tasks and sub-tasks using TaskCreate.