I Built a Tool to Stop Wasting Time on Toxic Open Source Projects

A developer built repo-health, a tool that analyzes GitHub repositories to help contributors identify healthy open source projects and avoid toxic ones. The system uses a hybrid scoring approach combining weighted metrics (activity, maintenance, community, documentation) with LLM-based adjustments to account for context like feature-complete projects. Key features include PR metrics analysis, contributor retention visualization, intelligent issue analysis with difficulty scoring, activity pattern detection for spam, and file-issue mapping. The author shares technical implementation details, bug fixes (cache security vulnerability, React hydration mismatch), and lessons learned about focusing on real problems over engineering challenges.