Codebase intelligence for TypeScript and JavaScript. Free static analysis of code and styles: unused code, duplication, circular deps, complexity hotspots, architecture boundaries, design-system drift. Optional paid runtime layer (Fallow Runtime): hot-path review and cold-path deletion evidence from real production traffic.
High-performance semantic change detection for monorepos. Analyzes code changes at the AST level using the Oxc parser to determine which projects are truly affected by a diff, not just which files changed. Supports Nx, Turborepo, and npm/yarn/pnpm/bun workspaces.
Cyclomatic and cognitive complexity rules for oxlint with actionable error messages. Also available as a standalone library for programmatic complexity analysis.