What can I use gstack for?

Run /office-hours and describe the product you are building, and it pushes back on your framing and writes a design doc. Run /review on a branch, a separate line of code changes, and you get bugs that pass automated checks but break in production, with obvious ones fixed. Run /qa on a staging address, a test copy of your site, and it opens a real browser, reproduces bugs and fixes them.

Can I run gstack on my computer?

It runs as an add-on inside an AI assistant you already use.

What do I need to use gstack?

Claude Code or another supported coding agent, Git, and Bun v1.4.2+ (the tested version), plus Node.js on Windows. An Aside browser is recommended on macOS.

gstack: Turn Claude Code into a virtual engineering team

What it does

gstack is a set of Markdown skills by Garry Tan, President and CEO of Y Combinator, that turns Claude Code and other coding agents into a virtual engineering team. Each typed slash command plays one role, such as product thinker, reviewer, tester, security officer or release engineer. Its /office-hours design doc feeds the other skills. It is open source under the MIT license.

How to use it

Open Claude Code and paste the install prompt from the project's documentation; Claude does the rest, in about 30 seconds of setup. Then run /office-hours to describe what you are building. When you want the full cycle, /autoplan reviews a plan and /ship runs tests, review and the proposed code change.

Common use cases

Run /office-hours and describe the product you are building, and it pushes back on your framing and writes a design doc.
Run /review on a branch, a separate line of code changes, and you get bugs that pass automated checks but break in production, with obvious ones fixed.
Run /qa on a staging address, a test copy of your site, and it opens a real browser, reproduces bugs and fixes them.

Can I use this?

Add-on for your coding assistant

Requirements It runs inside an AI agent you already use, installed on your machine through Git and a setup script. A recommended team mode gives teammates gstack automatically.

Caveat In team mode, every teammate needs Node.js available, and each Claude Code session starts with a silent update check. Removing gstack later is covered by a separate uninstall guide and script.

Worth knowing The /cso security check also needs a native compiler toolchain, or setup leaves it unavailable. Support for other agents comes in tiers, and one tier only prints what to copy. Licensed under MIT.

Why it's here

2,300 people starred it on GitHub this week — 140,731 in total.

Numbers as of 8 November 2026, from BuildTube’s latest daily refresh.

Behind it

View source

BuildTube has not run or verified this project. Everything above is written from what the creator published.

Made this?

Quick questions

What is gstack?: gstack is a set of Markdown skills by Garry Tan, President and CEO of Y Combinator, that turns Claude Code and other coding agents into a virtual engineering team.
What can I use gstack for?: Run /office-hours and describe the product you are building, and it pushes back on your framing and writes a design doc. Run /review on a branch, a separate line of code changes, and you get bugs that pass automated checks but break in production, with obvious ones fixed. Run /qa on a staging address, a test copy of your site, and it opens a real browser, reproduces bugs and fixes them.
Can I run gstack on my computer?: It runs as an add-on inside an AI assistant you already use.
What do I need to use gstack?: Claude Code or another supported coding agent, Git, and Bun v1.4.2+ (the tested version), plus Node.js on Windows. An Aside browser is recommended on macOS.
What license does gstack use?: Licensed under MIT.

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