メニュー
Apply Rails testing standards with Minitest, fixtures, and pragmatic coverage boundaries. Use when creating tests, reviewing test quality, or improving flaky and slow Rails test suites.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Review Ruby/Rails code like DHH would - direct, opinionated, allergic to over-engineering. Use when the user runs /dhh or asks for a DHH-style review of a diff, file, or recent changes.
Apply core Ruby on Rails best practices for architecture, naming, safety, and maintainability. Use for most Rails coding, refactoring, and code review tasks so baseline standards stay consistent.
Apply Hotwire, Turbo, Stimulus, and ActionCable best practices for real-time Rails interfaces. Use when building Turbo Streams/Frames, Stimulus interactions, or websocket-driven updates.
Apply best practices for Rails background jobs using simple orchestration, idempotency, and safe retries. Use when creating, refactoring, or debugging Active Job and queue-backed workflows.
Write and review Rails database migrations safely, including reversible changes, lock-aware operations, and rollout sequencing. Use when adding or changing schema, indexes, constraints, or backfills.
Apply Rails security and multi-tenant safety practices including scoped queries, SSRF defenses, rate limiting, and tenant-scoped realtime updates. Use when implementing auth, webhooks, tenant boundaries, or security-sensitive endpoints.
| name | rails-testing |
| description | Apply Rails testing standards with Minitest, fixtures, and pragmatic coverage boundaries. Use when creating tests, reviewing test quality, or improving flaky and slow Rails test suites. |
| disable-model-invocation | true |
Use for test-writing and test-review tasks. Patterns from Campfire and Fizzy test suites.
parallelize(workers: :number_of_processors).created_at: <%= 1.hour.ago %>) and shared computed values (one bcrypt digest reused).app/models structure in test/models: app/models/card/closeable.rb ↔ test/models/card/closeable_test.rb; shared concerns under test/models/concerns/..first/.last are stable and runtime records are always newer.ActionText::Attachment.from_attachable(user).to_html), not hand-written markup.travel_to for time-based logic.SecureRandom); use VCR for external HTTP — auto-name cassettes from class+test name, normalize timestamps in matching.perform_enqueued_jobs(only: SpecificJob) and assert_enqueued_with — not by unit-testing trivial job classes.assert_difference({ -> { card.assignees.count } => -1, -> { Event.count } => +1 }).as: :turbo_stream (assert stream targets) and as: :json (status, Location header, body).assert_turbo_stream_broadcasts in model tests, assert_turbo_stream action:, target: in controller tests, assert_no_turbo_stream_broadcasts for negatives.Current.account (and Current.session when behavior depends on the actor) in setup; integration/system tests set default_url_options[:script_name]; provide an untenanted { } helper for auth routes. Clear Current in teardown.Rack::MockRequest.using_session("Kevin") for multi-user scenarios; wait for cable connection before asserting realtime; auth via a fast session-transfer helper, keeping the full login flow to one smoke test.self.use_transactional_tests = false + explicit cleanup.ActionCable.server.pubsub, Current).travel_to.