The Garry Tan (YC) Playbook for Building with Claude
How to use Garry Tan’s open-sourced “software factory” and replace agent chaos with a real product workflow
Garry Tan just published gstack, a full repo designed to run inside Claude Code and structure how you build with AI.
You’ve probably seen it already and underestimated it.
It’s the CEO of Y Combinator effectively saying: “if you’re building with Claude, this is one of the right ways to do it!”
Because this isn’t really about “better prompts.” It’s about a better operating model, one that forces you to:
think before you build
validate before you ship
structure your work instead of improvising inside a chat
Most people use Claude in a messy way because they jump straight into generation ending up with an output that feels productive but doesn’t actually move the product forward.
And in this guide, I’ll show you both sides of it:
how to install the repo and use it in practice inside Claude Code
how to read it the right way, like YC intends it (not just a folder full of commands)
Inside you’ll find:
How to get started and get it running inside Claude Code
What Most People Miss About Gstack and the Core Cycle Behind It
How to Use Each Skill Properly (and in the Right Order)
How to use the key skills in a real product flow (A practical example)
What Garry Tan Is Actually Showing You Here (Key Takeaways)
If you want to learn how to use Claude not just faster, but the way YC is implicitly recommending founders use it, this is where the real guide starts.
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