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GStack splits AI coding tasks into expert roles, boosting review, testing, and shipping efficiency.
GStack is an open-source skill pack for Claude Code created by Y Combinator CEO Garry Tan. It transforms a single AI assistant into a team of specialists — from CEO-level product review to automated QA testing and one-command shipping.
Built this to make Claude Code less “one generic assistant” and more like a team with explicit roles.
GStack adds 9 workflow skills for different parts of the software lifecycle: product review, architecture review, code review, shipping, browser QA, QA-only reporting, retrospectives, etc.
You can check it out here: https://gstacks.org/
The basic idea is that planning, reviewing, shipping, and testing require different modes of thinking, and AI tends to do worse when all of that is mixed together in one context.
It’s open source. Curious what HN thinks, especially from people using Claude Code or other coding agents in production.
