Layered Rails
Use when Rails controllers and models have grown fat and layers are blurred.
--- name: layered-rails description: Write, refactor, and review Rails code using layered architecture principles from "Layered Design for Ruby on Rails Applications". Use when writing or refactoring Rails code — models, controllers, services, jobs, mailers, policies, forms, query objects, presenters, view components, state machines, serializers, or AI/LLM features — to apply correct patterns and avoid layer violations; and when reviewing Rails code, PRs, or diffs for layer violations, fat controllers/models, anemic models, callback misuse, god objects, or specification-test failures. Triggers on "layered design", "architecture layers", "abstraction layer", "specification test", "layer violation", "fat controller/model", "god object", "anemic model", "extract service/callback/policy/concern", "service object", "form/policy/query/value object", "presenter", "view component", "state machine", "Active Delivery", "callback scoring", "Rails refactor/review", "Rails patterns/best practices", "archspec", "architecture linter/enforcement". allowed-tools: - Grep - Glob - Read - Task ---