Fallow gives Codex fast, local-first codebase analysis for TypeScript and JavaScript. Audit changed-code risk, find dead code and unused dependencies, detect duplication and complexity hotspots, inspect architecture boundaries, and prioritize safe cleanup. Fallow Impact explains the latest full-project issue count, its comparable trend, and findings cleared while tracking. Optional cloud and product telemetry workflows run only after explicit user action.
Install
- 1Add it in ChatGPT
Open Plugins in the ChatGPT sidebar (web or desktop), search for “Fallow Code Analysis” and select +. You'll be asked to sign in to any connected service on first use. Then type @ in a chat to call it.
Skills 2
- Fallow
Analyze TypeScript and JavaScript codebases
- Fallow Review
Review code changes with graph-grounded risk
Things to ask
- “Audit this codebase for changed-code risk and cleanup opportunities.”
- “Review this branch with fallow and prioritize what needs attention.”
- “Show the latest Fallow Impact summary for this project.”
Related
SuperpowersPlan, develop, and debug codeplugin · by Jesse Vincent · 294k stars