gstack is a powerful toolkit that transforms Claude Code from a generic AI assistant into a team of specialized roles you can summon on demand. Created by Garry Tan (President & CEO of Y Combinator), it provides eight distinct workflow skills that enable different cognitive modes for software development.
Key Features
- /plan-ceo-review: Founder/CEO mode that rethinks problems to find the "10-star product" hidden within requests
- /plan-eng-review: Engineering manager mode for architecture, data flow, diagrams, and test planning
- /review: Paranoid staff engineer mode for structural audits and finding production-critical bugs
- /ship: Release engineer mode for automated branch syncing, testing, and PR creation
- /browse: QA engineer mode with browser automation for testing, screenshots, and UI verification
- /qa: Systematic QA testing with structured reports, health scores, and regression tracking
- /setup-browser-cookies: Session manager for importing browser cookies into headless sessions
- /retro: Engineering manager mode for team-aware retrospectives with metrics and feedback
Use Cases
- Parallel Development: Works seamlessly with Conductor for running multiple Claude Code sessions simultaneously
- End-to-End Workflow: From product ideation to implementation, review, shipping, and testing
- Team Collaboration: Project-level installation enables consistent workflows across team members
- Quality Assurance: Automated browser testing and systematic QA processes
Technical Implementation
- Built with TypeScript (98.7%) and Shell (1.3%)
- Uses Playwright for browser automation
- Compiled binary for macOS and Linux (x64 and arm64)
- Requires Claude Code, Git, and Bun v1.0+
- MIT licensed open source project
