@prpm-converter/cursorrules-using-git-worktrees

# Using Git Worktrees - Cursor Rules

---

## Overview

This cursor rule is based on the Claude Code "Using Git Worktrees" skill, adapted for use in Cursor IDE.

## Core Methodology

When working on code, follow this using git worktrees methodology:

1. *If found:** Use that directory. If both exist, `.worktrees` wins.
2. *If preference specified:** Use it without asking.
3. *MUST verify .gitignore before creating worktree:**
4. *If NOT in .gitignore:**
5. *Why critical:** Prevents accidentally committing worktree contents to repository.
6. *If tests fail:** Report failures, ask whether to proceed or investigate.
7. *If tests pass:** Report ready.
8. *Skipping .gitignore verification**
9. **Problem:** Worktree contents get tracked, pollute git status
10. **Fix:** Always grep .gitignore before creating project-local worktree
11. *Assuming directory location**
12. **Problem:** Creates inconsistency, violates project conventions
13. **Fix:** Follow priority: existing > CLAUDE.md > ask
14. *Proceeding with failing tests**
15. **Problem:** Can't distinguish new bugs from pre-existing issues
16. **Fix:** Report failures, get explicit permission to proceed
17. *Hardcoding setup commands**
18. **Problem:** Breaks on projects using different tools
19. **Fix:** Auto-detect from project files (package.json, etc.)
20. *Never:**
21. Create worktree without .gitignore verification (project-local)
22. Skip baseline test verification
23. Proceed with failing tests without asking
24. Assume directory location when ambiguous
25. Skip CLAUDE.md check
26. *Always:**
27. Follow directory priority: existing > CLAUDE.md > ask
28. Verify .gitignore for project-local
29. Auto-detect and run project setup
30. Verify clean test baseline
31. *Called by:**
32. **brainstorming** (Phase 4) - REQUIRED when design is approved and implementation follows
33. Any skill needing isolated workspace
34. *Pairs with:**
35. **finishing-a-development-branch** - REQUIRED for cleanup after work complete
36. **executing-plans** or **subagent-driven-development** - Work happens in this worktree

## Principles

- Apply best practices from the skill content below

## Implementation Guidelines

- Reference the detailed skill content for specific guidance



## Integration with Other Rules

This rule works best when combined with:
- Code quality and style guidelines
- Testing best practices
- Project-specific conventions

You can reference other .cursorrules files by organizing them in your project:
```
.cursorrules/
  ├── base/
  │   ├── using-git-worktrees.cursorrules (this file)
  │   └── code-quality.cursorrules
  └── project-specific.cursorrules
```

## Original Skill Content

The following is the complete content from the Claude Code skill for reference:

---

---
name: using-git-worktrees
description: Use when starting feature work that needs isolation from current workspace or before executing implementation plans - creates isolated git worktrees with smart directory selection and safety verification
---

# Using Git Worktrees

## Overview

Git worktrees create isolated workspaces sharing the same repository, allowing work on multiple branches simultaneously without switching.

**Core principle:** Systematic directory selection + safety verification = reliable isolation.

**Announce at start:** "I'm using the using-git-worktrees skill to set up an isolated workspace."

## Directory Selection Process

Follow this priority order:

### 1. Check Existing Directories

```bash
# Check in priority order
ls -d .worktrees 2>/dev/null     # Preferred (hidden)
ls -d worktrees 2>/dev/null      # Alternative
```

**If found:** Use that directory. If both exist, `.worktrees` wins.

### 2. Check CLAUDE.md

```bash
grep -i "worktree.*director" CLAUDE.md 2>/dev/null
```

**If preference specified:** Use it without asking.

### 3. Ask User

If no directory exists and no CLAUDE.md preference:

```
No worktree directory found. Where should I create worktrees?

1. .worktrees/ (project-local, hidden)
2. ~/.config/superpowers/worktrees/<project-name>/ (global location)

Which would you prefer?
```

## Safety Verification

### For Project-Local Directories (.worktrees or worktrees)

**MUST verify .gitignore before creating worktree:**

```bash
# Check if directory pattern in .gitignore
grep -q "^\.worktrees/$" .gitignore || grep -q "^worktrees/$" .gitignore
```

**If NOT in .gitignore:**

Per Jesse's rule "Fix broken things immediately":
1. Add appropriate line to .gitignore
2. Commit the change
3. Proceed with worktree creation

**Why critical:** Prevents accidentally committing worktree contents to repository.

### For Global Directory (~/.config/superpowers/worktrees)

No .gitignore verification needed - outside project entirely.

## Creation Steps

### 1. Detect Project Name

```bash
project=$(basename "$(git rev-parse --show-toplevel)")
```

### 2. Create Worktree

```bash
# Determine full path
case $LOCATION in
  .worktrees|worktrees)
    path="$LOCATION/$BRANCH_NAME"
    ;;
  ~/.config/superpowers/worktrees/*)
    path="~/.config/superpowers/worktrees/$project/$BRANCH_NAME"
    ;;
esac

# Create worktree with new branch
git worktree add "$path" -b "$BRANCH_NAME"
cd "$path"
```

### 3. Run Project Setup

Auto-detect and run appropriate setup:

```bash
# Node.js
if [ -f package.json ]; then npm install; fi

# Rust
if [ -f Cargo.toml ]; then cargo build; fi

# Python
if [ -f requirements.txt ]; then pip install -r requirements.txt; fi
if [ -f pyproject.toml ]; then poetry install; fi

# Go
if [ -f go.mod ]; then go mod download; fi
```

### 4. Verify Clean Baseline

Run tests to ensure worktree starts clean:

```bash
# Examples - use project-appropriate command
npm test
cargo test
pytest
go test ./...
```

**If tests fail:** Report failures, ask whether to proceed or investigate.

**If tests pass:** Report ready.

### 5. Report Location

```
Worktree ready at <full-path>
Tests passing (<N> tests, 0 failures)
Ready to implement <feature-name>
```

## Quick Reference

| Situation | Action |
|-----------|--------|
| `.worktrees/` exists | Use it (verify .gitignore) |
| `worktrees/` exists | Use it (verify .gitignore) |
| Both exist | Use `.worktrees/` |
| Neither exists | Check CLAUDE.md → Ask user |
| Directory not in .gitignore | Add it immediately + commit |
| Tests fail during baseline | Report failures + ask |
| No package.json/Cargo.toml | Skip dependency install |

## Common Mistakes

**Skipping .gitignore verification**
- **Problem:** Worktree contents get tracked, pollute git status
- **Fix:** Always grep .gitignore before creating project-local worktree

**Assuming directory location**
- **Problem:** Creates inconsistency, violates project conventions
- **Fix:** Follow priority: existing > CLAUDE.md > ask

**Proceeding with failing tests**
- **Problem:** Can't distinguish new bugs from pre-existing issues
- **Fix:** Report failures, get explicit permission to proceed

**Hardcoding setup commands**
- **Problem:** Breaks on projects using different tools
- **Fix:** Auto-detect from project files (package.json, etc.)

## Example Workflow

```
You: I'm using the using-git-worktrees skill to set up an isolated workspace.

[Check .worktrees/ - exists]
[Verify .gitignore - contains .worktrees/]
[Create worktree: git worktree add .worktrees/auth -b feature/auth]
[Run npm install]
[Run npm test - 47 passing]

Worktree ready at /Users/jesse/myproject/.worktrees/auth
Tests passing (47 tests, 0 failures)
Ready to implement auth feature
```

## Red Flags

**Never:**
- Create worktree without .gitignore verification (project-local)
- Skip baseline test verification
- Proceed with failing tests without asking
- Assume directory location when ambiguous
- Skip CLAUDE.md check

**Always:**
- Follow directory priority: existing > CLAUDE.md > ask
- Verify .gitignore for project-local
- Auto-detect and run project setup
- Verify clean test baseline

## Integration

**Called by:**
- **brainstorming** (Phase 4) - REQUIRED when design is approved and implementation follows
- Any skill needing isolated workspace

**Pairs with:**
- **finishing-a-development-branch** - REQUIRED for cleanup after work complete
- **executing-plans** or **subagent-driven-development** - Work happens in this worktree


---

## Usage Notes

- Apply these principles consistently throughout development
- Adapt the methodology to fit your specific project context
- Combine with project-specific rules for best results
- Use this as a reference for the using git worktrees approach

---
*Converted from Claude Code Skill: using-git-worktrees*
*Source: using git worktrees skill*