Hook

Their other posts in the index, biggest breakout first.
If you only install one GitHub repo for Claude Code, this is the one. It's called Everything Claude Code, 182,000 stars. Built at Anthropic's own hackathon and won. Inside, you get 28 specialized sub-agents, 119 skills, 60 slash commands, 34 rules, and 20 automated hooks and 14 MCP servers, all inside of one repo. It basically turns Claude Code into a full engineering team out of the box. You install it once and Claude is suddenly running with security scanning, memory optimization, continuous learning, and research-first development. The repo has 1,282 tests and 98% coverage, so it's actually battle-tested. And it works across Claude Code, Codex, Cursor, OpenCode, Gemini, Zed, GitHub Copilot, and other AI agent harnesses. Comment "stack" and I'll send you the link.