gstack

GStack gives you 15 opinionated tools and 9 workflow skills that do exactly that. Install it, and suddenly your terminal has slash commands for code review, shipping, browser automation, QA testing, and retrospectives.

Garry Tan (YC CEO) built this for his own workflow and claims 10K lines of code and 100 PRs per week using it, in weeks. The tools include a persistent Chromium browser daemon for visual testing, plan review that catches issues before you write code, and one-command deploys.

Everything lives inside .claude/; nothing touches your PATH, nothing runs in the background except the browser daemon. TypeScript core with some Go for performance.

The catch: this is one person's extremely opinionated workflow. If your development style doesn't match Garry's, you'll fight the tools instead of using them. And it's Claude Code only: no Cursor, no Codex, no other agent.