What problem does it solve? Working on multiple branches simultaneously often requires stashing changes or cloning the repository again, which disrupts your current workspace and wastes disk space. This Skill sets up isolated git worktrees so you can develop features in parallel without touching your main checkout. ## Core Features & Use Cases - Smart Directory Selection: Follows a priority order (existing .worktrees/ or worktrees/ directories, then CLAUDE.md preferences, then user prompt) to pick a consistent worktree location. - Safety Verification: Checks with git check-ignore that project-local worktree directories are gitignored before creation, and fixes the .gitignore automatically if not. - Automated Setup and Baseline Validation: Auto-detects project type (Node.js, Rust, Python, Go), installs dependencies, and runs the test suite to confirm a clean baseline before work begins. - Use Case: Before implementing a new authentication feature, create an isolated worktree at .worktrees/auth on a new branch, install dependencies, and verify all 47 existing tests pass so new bugs are distinguishable from pre-existing failures. ## Quick Start Set up an isolated git worktree for my new feature branch and verify the project tests pass before I start implementing.
