garrytan/gstack

Use Garry Tan's exact Claude Code setup: 23 opinionated tools that serve as CEO, Designer, Eng Manager, Release Manager, Doc Engineer, and QA

# gstack gstack turns Claude Code (and other coding agents) into a virtual engineering team: a CEO who rethinks the product, an eng manager who locks architecture, a designer who catches AI slop, a reviewer who finds production bugs, a QA lead who opens a real browser, a security officer who runs OWASP + STRIDE audits, and a release engineer who ships the PR. All slash commands, all Markdown, all free, MIT license. I'm [Garry Tan](https://x.com/garrytan), President & CEO of [Y Combinator](https://www.ycombinator.com/). This is the open source software factory I use every day, and I'm sharing it because these tools should be available to everyone. The story, the productivity numbers and how I run ten sprints at once are in [Why gstack](docs/why-gstack.md). Fork it. Improve it. Make it yours. And if you want to hate on free open source software — you're welcome to, but I'd rather you just try it first. **Who this is for:** - **Founders and CEOs** — especially technical ones who still want to ship - **First-time Claude Code users** — structured roles instead of a blank prompt - **Tech leads and staff engineers** — rigorous review, QA, and release automation on every PR ## What gstack is for - **A whole team's judgment for one builder.** Product, design, engineering, QA, security and release reviews, each from a specialist role. - **Catch what CI misses.** Find the bugs that pass tests but break in production, before they ship. - **AI-written changes you can trust.** Every change carries its tests, its review and the evidence for both, so you can merge without rereading every line. - **Free, open and portable.** MIT-licensed, and it runs on Claude Code and the other major coding agents. ## Quick start 1. Install gstack (two pastes, about 30 seconds of setup; see bel