gstack QA
Garry Tan's QA lead: test your app, fix what breaks and report ship readiness.
Community, verifiedby Garry TanChecked October 18, 2026
Part of gstack, the very popular toolkit by Y Combinator's Garry Tan. The QA skill tests a site or service, fixes the bugs it finds with separate commits and ends with a ship-readiness summary.
Who it is for
- Founders
- Developers
- Small product teams
Prompts to try
Once the skill is installed, ask for the result in plain words. Claude picks the skill up on its own.
/qa the staging site before tomorrow's launchTest and fix what's broken in the signup flowRun a quick QA pass on critical issues onlyHow to install it
In Claude Code
git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstackcd ~/.claude/skills/gstack && ./setup
In Claude.ai
Not practical in Claude.ai because the skill drives local command-line tools, so use Claude Code.
Good to know
Use /qa-only for a report without fixes. gstack installs many related skills at once.
Unlock the install steps
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How we checked it
Confirmed SKILL.md at qa/SKILL.md in garrytan/gstack via the GitHub API; skill folder last changed 2026-10-17, repo has 136,777 stars and was pushed 2026-10-17.