skills

Enforces Effect-TS patterns for services, errors, layers, and atoms. Use when writing code with Effect.Service, Schema.TaggedError, Layer composition, or effect-atom React components.

This skill should be used when the user asks to "review code", "review my changes", "check effect patterns", "run effect review", "effect review", "review for effect best practices", or wants a comprehensive code review against Effect-TS conventions, branded types, observability, error handling, test coverage, and UI quality.

Review Effect v4 code, including beta, RC, and release versions, for correct error propagation, resource ownership, cancellation, concurrency, primitive selection, services/layers, schemas, atoms, observability, and tests. Use for requests such as "effect v4 review", "review my Effect 4 changes", "check Effect patterns", or "audit the Effect codebase" when the project uses v4. Supports files, working changes, PR/branch diffs, and repository audits. Reviews with one agent by default; delegation has an explicit total limit. Verify APIs against the installed version. For Effect v3 use effect-review.

Rework a change as if the intended UX and architecture existed from day one, deleting compatibility cruft and accidental complexity. Use when the user asks to remove tech debt, clean up a patch, or rework a change to its intended end state.