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.

"I don't think I've typed like a line of code probably since December, basically, which is an extremely large change."

— Andrej Karpathy, No Priors podcast, March 2026

When I heard Karpathy say this, I wanted to find out how. How does one person ship like a team of twenty? Peter Steinberger built OpenClaw — 247K GitHub stars — essentially solo with AI agents. The revolution is here. A single builder with the right tooling can move faster than a traditional team.

About Garry Tan

Garry Tan

President & CEO of Y Combinator

• Former eng/PM/designer at Palantir

• Cofounder of Posterous (sold to Twitter)

• Built Bookface, YC's internal social network

• Worked with Coinbase, Instacart, Rippling

I'm Garry Tan, President & CEO of Y Combinator. I've worked with thousands of startups — Coinbase, Instacart, Rippling — when they were one or two people in a garage. Before YC, I was one of the first eng/PM/designers at Palantir, cofounded Posterous (sold to Twitter), and built Bookface, YC's internal social network.

gstack is my answer. I've been building products for twenty years, and right now I'm shipping more products than I ever have. In the last 60 days: 3 production services, 40+ shipped features, part-time, while running YC full-time. On logical code change — not raw LOC, which AI inflates — my 2026 run rate is ~810× my 2013 pace (11,417 vs 14 logical lines/day). Year-to-date (through April 18), 2026 has already produced 240× the entire 2013 year.

gstack is how I do it

It turns Claude Code 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. Twenty-three specialists and eight power tools, all slash commands, all Markdown, all free, MIT license.

CEO / Founder

Rethink the problem. Find the 10-star product hiding inside the request.

Eng Manager

Lock in architecture, data flow, diagrams, edge cases, and tests.

Senior Designer

Rate design dimensions 0-10, detect AI Slop, edit plans to perfection.

Staff Engineer

Find bugs that pass CI but blow up in production. Auto-fix obvious ones.

QA Lead

Test your app, find bugs, fix them with atomic commits, re-verify.

Release Engineer

Sync main, run tests, audit coverage, push, open PR. One command.

Quick Start

Get started with gstack in minutes

Install gstack

30 seconds setup

Run /office-hours

Describe what you're building

Run /plan-ceo-review

Review any feature idea

Run /review

Review any branch

Run /qa

Test your staging URL

Stop there

You'll know if this is for you

Install — 30 seconds

Requirements: Claude Code, Git, Bun v1.0+, Node.js (Windows only)

Step 1: Install on your machine

Open Claude Code and paste this. Claude does the rest.

                        git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstack && cd ~/.claude/skills/gstack && ./setup
                    

Step 2: Team mode (recommended)

From inside your repo, paste this for auto-update:

                        (cd ~/.claude/skills/gstack && ./setup --team) && ~/.claude/skills/gstack/bin/gstack-team-init required && git add .claude/ CLAUDE.md && git commit -m "require gstack for AI-assisted work"
                    