Turn Claude Into a Full Software Team: gstack, the Y Combinator CEO's Claude Code Setup
The free, open-source setup Garry Tan uses every day: 23 Claude specialists, from a CEO who pokes holes in your idea to a tester who clicks through your app. How to install it, the five commands to start with, and the catch
gstack is the Claude Code setup of Garry Tan, the President and CEO of Y Combinator, released free under the MIT license. It turns Claude into a software team: 23 specialists, each one a slash command, that run in the order a real product sprint runs: think, plan, build, review, test, ship, reflect.
Here's who is on the team, how to install it, the commands to start with, and the catch.
Who is on the team
| Command | Specialist | What it does |
|---|---|---|
| /office-hours | YC office hours | Six forcing questions that reframe your product before you write code |
| /plan-ceo-review | CEO / founder | Rethinks the problem and challenges the scope of your idea |
| /plan-eng-review | Eng manager | Locks the architecture, data flow, edge cases and tests |
| /plan-design-review | Senior designer | Rates each design choice 0-10 and flags the generic AI look |
| /review | Staff engineer | Finds the bugs that pass tests but break in production, fixes the obvious ones |
| /qa | QA lead | Opens a real browser, clicks through your app, reproduces and fixes bugs |
| /cso | Security officer | A security audit of your project |
| /ship | Release engineer | Runs the tests, checks coverage and docs, pushes and opens the pull request |
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Get the full setup steps + the copy-paste setup prompt
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