This tool explores your codebase the way an AI would, identifying where shallow modules create friction and proposing deeper, more testable boundaries. It spawns multiple agents to design competing interfaces for tightly-coupled code clusters, then generates GitHub issue RFCs with concrete refactoring plans. Perfect when you're drowning in integration tests, bouncing between tiny files to understand one concept, or need to make legacy code more maintainable. The parallel interface design approach gives you real architectural options instead of obvious extractions. Creates actionable issues you can actually implement.
npx skills add https://github.com/mattpocock/skills --skill improve-codebase-architecture