The YC CEO's personal engineering-team-in-a-box for Claude Code. 23 tools, 6 roles, one install command, completely free.
Garry Tan — President & CEO of Y Combinator — open sourced the exact Claude Code configuration he uses to run his own engineering work. It's built entirely on Claude Code's native slash commands, so there's nothing extra to run — just markdown files that slot into your existing setup.
Claude Code installed + an active Anthropic API account
ThenClone the repo from github.com/garrytan/gstack, then copy the command files into your project's .claude/commands/ folder.
Always verify the exact steps on the repo's README before installing — Garry ships updates frequently, so setup details can shift.
Pressure-tests your idea before you build the wrong thing.
Flags the generic, low-effort output Claude can produce if left unchecked.
Keeps your codebase's structure consistent as it grows.
Opens an actual browser and clicks through your app before anything ships.
Handles the actual deploy once everything's reviewed and tested.
Writes and maintains docs as the codebase changes, so nothing goes stale.