Claude Code

Learn how to use git worktrees to check out multiple branches in separate directories at the same time. Covers add, list, remove, and prune, the node_modules and .env gotchas, and how worktrees enable parallel Claude Code sessions.

A hands-on tutorial for Claude Code hooks. Learn PreToolUse and PostToolUse with real examples including auto-formatting, file protection, destructive command blocking, and more.

A practitioner’s guide to writing CLAUDE.md files that actually improve Claude Code’s output. Includes templates, the full configuration hierarchy, and hard-won lessons.