garrytan/gstack

Garry Tan's published Claude Code setup — 23 opinionated tools that serve as "CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA". A celebrity-engineer-publishes-their-setup pattern with strong audit signals.

What it is

The README claim: Garry Tan (Y Combinator's CEO and a long-time engineer) has published his exact Claude Code setup as a TypeScript package — 23 tools / agent skills covering different organizational roles. Pitched as "use the same setup Garry Tan uses". Operates in the same lane as mattpocock/skills (engineer publishes their .claude/ directory) but with a much faster star-velocity curve and notable scale.

Key features

23 pre-built "tools" / skills mapped to organizational roles.
TypeScript implementation.
MIT-licensed.

Tech stack

TypeScript primary.

When to reach for it

You're a Claude Code user and want a curated set of opinionated tools to try.
You're a Garry Tan follower and want to replicate his stated workflow.

When not to reach for it

You want vendor-supported tooling — first-party anthropics/skills is safer.
You're risk-averse about installing third-party skills (even from celebrity engineers) into a credentialed agent loop without source review.
The audit signal matters to you: 106k stars with 643 watchers in roughly a year warrants verification of organic adoption versus campaign-driven velocity. None of these signals is conclusive of bad intent — verify the maintainer history, the actual skill source code, and whether Garry Tan has publicly endorsed this repo on his own channels before depending on it.

Maturity signal

106k stars, 16k forks, MIT, actively maintained. The watcher count (643) is low relative to the star count, which is the typical agent-skills-space pattern. The "celebrity engineer's setup" framing is increasingly common in this niche; verify endorsement claims from primary sources (Garry Tan's own Twitter / blog / YC channels) before treating brand attachment as authorship.

Alternatives

anthropics/skills — first-party.
mattpocock/skills — comparable engineer-published setup.
obra/superpowers, affaan-m/ECC — third-party agent / skills frameworks.

Wiki: garrytan/gstack