What it does

Fallow provides codebase intelligence for JavaScript and TypeScript projects. Its static analysis finds unused files/exports/types, duplicate code, circular dependencies, complexity hotspots, boundary violations, and feature-flag patterns. When runtime coverage is available, Fallow merges execution data into health reports to prioritize hot-path refactors, safely remove cold code, and produce actionable cleanup candidates.

When to use it

Audit code health before a release or refactor
Find and remove dead code (unused files, exports, types, deps)
Detect duplicate code and consolidation opportunities
Identify circular dependencies and architecture boundary violations
Merge runtime coverage to prioritize hot-path cleanup and confirm deletions
Run in CI to gate regressions or enforce cleanup quotas

What's included

Scripts: none (has_scripts=false)
References: included in repository (has_references=true)
Instructions: detailed CLI usage and agent rules; prefer --format json --quiet and append || true to avoid non-zero exits when issues are found. Use --dry-run before fix --yes.