gstack is Y Combinator CEO Garry Tan's open-source skill pack that turns Claude Code into a virtual engineering team.
Chained slash-command roles cover product framing, architecture and design review, code review, debugging, browser-based QA, security audit, shipping and deployment, with each step passing artifacts to the next.
- 01
Role-based slash commands such as /office-hours, /plan-ceo-review, /plan-eng-review and /review
- 02
Real-browser /qa that reproduces bugs, writes regression tests and re-verifies fixes
- 03
/cso security audit plus /ship and /land-and-deploy release automation
- 04
Team mode that auto-updates gstack for every contributor in a shared repo
- 05
Multi-host install for Claude Code, Codex CLI, Cursor and OpenClaw
Free
gstack is free and open source under the MIT License; users pay only for the underlying agent (such as a Claude Code plan or Codex usage) that runs the skills.
Best for
Founders, tech leads and solo builders who want an opinionated, end-to-end plan-review-QA-ship workflow layered onto Claude Code or Codex.
Not ideal for
Developers who prefer lightweight prompts or minimal ceremony, since the multi-role workflow adds steps and token usage to small changes.
One of the most widely adopted Claude Code workflow packs, offering a complete, opinionated software-delivery loop that rewards teams willing to adopt its process.
The v1.91 release line added test-value checks across plan-eng-review, review, qa and ship, a new /test-audit skill, and functional QA and pre-publication docs checks.
As of
Is gstack free?+
Yes - gstack is Free. gstack is free and open source under the MIT License; users pay only for the underlying agent (such as a Claude Code plan or Codex usage) that runs the skills.
Is gstack open source?+
Yes - gstack is open source. gstack is free and open source under the MIT License; users pay only for the underlying agent (such as a Claude Code plan or Codex usage) that runs the skills.
Who is gstack best for?+
Founders, tech leads and solo builders who want an opinionated, end-to-end plan-review-QA-ship workflow layered onto Claude Code or Codex.
Who is gstack not ideal for?+
Developers who prefer lightweight prompts or minimal ceremony, since the multi-role workflow adds steps and token usage to small changes.
What are the best gstack alternatives?+
The closest gstack alternatives on ai.dosa.dev are Pieces for Developers, agenttrace, Vibe Kanban - all listed under Developer Productivity & Workflow.
Who makes gstack?+
gstack is developed by Garry Tan. It is listed in the Developer Productivity & Workflow category on ai.dosa.dev.
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