fallow

Codebase intelligence for TypeScript and JavaScript. Static analysis of code and styles reports changed-code risk, cleanup opportunities, duplication, circular dependencies, complexity hotspots, architecture boundaries, design-system drift, feature flags, and opt-in security candidates. Runtime coverage can merge production execution data for hot-path review, cold-path deletion confidence, and stale-flag evidence. 123 framework plugins, zero configuration, sub-second static analysis. Use when asked to audit PR risk, find unused code or dependencies, detect duplicates, check styling consistency, inspect architecture boundaries, merge runtime coverage, auto-fix supported issues, or run fallow. Find cleanup opportunities: unused files, exports, types, members, dependencies, or stale flags. Detect code duplication, circular dependencies, architecture boundary issues, and complexity hotspots.

Check styling consistency, CSS dead surface, and design-token drift. | unused-store-member | --unused-store-members | - | // fallow-ignore-next-line unused-store-member | Pinia store state/getter/action (needs pinia dep) | | boundary-call-violation | --boundary-violations | - | // fallow-ignore-next-line boundary-call-violation | Zoned file calls a callee its zone forbids; Requires boundaries.calls.forbidden patterns | | invalid-client-export | - | - | // fallow-ignore-next-line invalid-client-export | "use client" file exports a server-only / route-config name; Requires the project to declare next | | unused-svelte-event | --unused-svelte-events | - | // fallow-ignore-next-line unused-svelte-event | A Svelte createEventDispatcher event is listened to nowhere in the project; needs svelte dep | Configuration keys: FALLOW_AGENT_SOURCE, FALLOW_CA_BUNDLE, ARGUMENTS.

Run: npx -y skills add https://github.com/fallow-rs/fallow-skills --skill fallow --agent claude-code — the source lives at github.com/fallow-rs/fallow-skills.