Install
git clone --single-branch --depth 1 https://github.com/garrytan/gstack.git ~/.claude/skills/gstack && cd ~/.claude/skills/gstack && ./setup
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gstack is Garry Tan's open-source Claude Code configuration that bundles specialist roles - Eng Manager, Designer, QA Lead, Security Officer, and more - as Markdown slash-command skills following a Think to Plan to Build to Review to Test to Ship workflow. Commands include /review for staff-level bug detection with auto-fixes, /qa for real-browser testing, and /cso for OWASP and STRIDE security audits, plus GBrain as a persistent knowledge base. Install by cloning into ~/.claude/skills/gstack and running ./setup; it works across 10 coding agents.