Garry Tan Open-Sources gstack: Turning Claude Code Into a Full AI Engineering Org
garrytan · x · 2026-08-12
Y Combinator President Garry Tan has open-sourced gstack (128k stars), a repository that transforms Claude Code into a complete AI engineering organization.
The project features 23 tools that break a single workflow into product, engineering, QA, review, and release lanes:
- /office-hours: Turns a rough idea into a real product spec
- /plan-ceo-review & /plan-eng-review: Tries to tear the plan apart before any code ships
- /review: Hunts for bugs and patches them
- /qa: Spins up an actual browser and tests the app end-to-end
- /ship: Runs final checks and pushes the PR
Tan claims this setup allowed him to ship 3 production services and 40+ features in 60 days while running YC full-time.
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