validating-setup-commands

Validate setup commands in your CLAUDE.md file before creating worktrees. The validating-setup-commands Skill checks that your CLAUDE.md Setup section defines both a required install command (like `npm install`) and optional postinstall command, catching dependency issues before worktree creation fails.

CLAUDE.md requires an install command in the Setup section—such as `npm install`, `pip install`, or equivalent for your package ecosystem—and optionally a postinstall command for additional configuration. This Skill validates both are present and properly formatted.

Yes, this Skill works across package ecosystems including Node.js, Python, and others. It extracts and validates the install and postinstall commands you define in CLAUDE.md regardless of your project's package manager.

The Skill emits clear, actionable error messages that show exactly which setup commands are missing from CLAUDE.md and provide format examples so you can add them correctly before proceeding with worktree creation.

Run validation early in your worktree creation workflow to detect missing install or postinstall commands in CLAUDE.md. This prevents cryptic dependency failures later and ensures every worktree starts with proper installation documentation.

This Skill is designed for projects using worktrees with a CLAUDE.md Setup section. If your project doesn't use worktrees, you won't need this validation—focus on documenting setup commands in CLAUDE.md for local development instead.