Agent Claude Code
Orchestrates full feature implementation across models, controllers, views, and tests following 37signals conventions. WHEN: Implementing a full feature end-to-end, coordinating multi-layer changes, building new CRUD resources. WHEN NOT: Reviewing existing code (use review-agent), refactoring legacy patterns (use…
Agent Claude Code
Orchestrates incremental refactoring of Rails codebases toward 37signals patterns. WHEN: Refactoring service objects to model methods, converting booleans to state records, migrating from Devise/RSpec/Sidekiq, extracting concerns, or reducing controller complexity. WHEN NOT: Building new features (use…
Agent Claude Code
Reviews code for adherence to 37signals Rails conventions. Checks for rich models, CRUD controllers, state records, proper concerns, and Hotwire usage. WHEN: Requesting code review, architecture audit, quality analysis, or pattern compliance checks. WHEN NOT: Implementing features (use implement-agent), refactoring…
Hook Claude Code
Runs when a session starts, running an inline shell check. From dilolabs/nosia.
Hook Claude Code
Runs after a tool call finishes for Edit and Write tool calls, running an inline shell check (2 commands). From dilolabs/nosia.
Hook Claude Code
Runs before the agent uses a tool for Bash tool calls, running an inline shell check. From dilolabs/nosia.
Hook Claude Code
Runs when a task is marked completed, running an inline shell check. From dilolabs/nosia.
Hook Claude Code
Runs when the agent finishes a response, running an inline shell check. From dilolabs/nosia.
Settings file Claude Code
Agent settings declaring 5 hook events (SessionStart, PostToolUse, PreToolUse, TaskCompleted).
Skill Claude CodeCodex
Builds REST APIs using respondto blocks with Jbuilder templates following the 37signals same-controllers-different-formats philosophy. Use when adding API endpoints, JSON responses, token authentication, pagination, or when user mentions API, JSON, REST, or Jbuilder. WHEN NOT: For HTML-only controllers (use…
Skill Claude CodeCodex
Implements custom passwordless authentication without Devise. Use when setting up authentication, login flows, session management, passkeys (WebAuthn), magic links, or password resets. Passkeys are the primary auth method; magic links are the fallback. WHEN NOT: For authorization/permissions (use controller concerns…
Skill Claude CodeCodex
Implements HTTP caching with ETags, fragment caching, Russian doll caching, and Solid Cache configuration. Use when optimizing performance, adding caching layers, or when user mentions ETags, freshwhen, stale?, cache keys, or Russian doll caching. WHEN NOT: For Turbo Stream real-time updates (use turbo-patterns), for…
Skill Claude CodeCodex
Creates and refactors model and controller concerns for shared behavior. Use when extracting shared code, organizing models with horizontal concerns, DRYing up controllers, or when user mentions concerns, mixins, or modules. WHEN NOT: Logic used by only one model (keep in place), service object extraction (use…
Skill Claude CodeCodex
Generates RESTful controllers mapping any action to CRUD by creating new resources instead of custom actions. Use when adding features, creating controllers, designing routes, or handling state changes via REST. WHEN NOT: Non-REST APIs (use api-patterns), view/template work (use turbo-patterns), or model business…
Skill Claude CodeCodex
Builds event tracking, activity feeds, and webhook systems following 37signals patterns with a generic Event model and Eventable concern. Use when implementing audit trails, activity feeds, event recording, webhooks, or when user mentions events, tracking, webhooks, or activity logs. WHEN NOT: For state changes as…
Skill Claude CodeCodex
Implements shallow background jobs with later/now conventions using Solid Queue. Use when adding background processing, async operations, scheduled tasks, or when user mentions jobs, queues, workers, or background processing. WHEN NOT: Business logic implementation (use model-patterns), controller work (use…
Skill Claude CodeCodex
Creates minimal Action Mailer classes with bundled notification patterns following 37signals conventions. Use when sending emails, creating notification systems, digest emails, or when user mentions mailers, emails, notifications, or transactional messages. WHEN NOT: For background job scheduling (use job-patterns)…
Skill Claude CodeCodex
Creates database migrations with UUIDs, account scoping, and no foreign key constraints. Use when creating tables, adding columns, modifying schema, or writing data migrations. WHEN NOT: For model business logic (see model-patterns skill). For multi-tenant scoping logic (see multi-tenant-setup skill).
Skill Claude CodeCodex
Builds rich domain models with business logic, concerns, and proper associations following the fat-models-over-service-objects philosophy. Use when creating models, adding validations, scopes, callbacks, business logic methods, or associations. WHEN NOT: Controller/routing work (use crud-patterns), concern extraction…
Skill Claude CodeCodex
Implements URL-based multi-tenancy with account scoping, membership patterns, and data isolation following 37signals patterns. Use when setting up multi-tenant architecture, account isolation, membership management, or when user mentions multi-tenancy, accounts, or tenant separation. WHEN NOT: For basic model setup…
Skill Claude CodeCodex
Implements the state-as-records-not-booleans pattern for rich state tracking. Use when modeling state changes, replacing boolean flags with record-based state, or when user mentions state records, closures, publications, or toggling state. WHEN NOT: Technical flags like cached/processed (use booleans), concern…
Skill Claude CodeCodex
Builds focused, single-purpose Stimulus controllers for progressive enhancement. Use when adding JavaScript behavior, UI interactions, form enhancements, or building reusable client-side components. WHEN NOT: For Turbo Stream/Frame patterns (see turbo-patterns skill). For server-side view logic (see rules/views.md).
Skill Claude CodeCodex
Writes Minitest tests with fixtures following 37signals conventions. Uses Minitest (not RSpec) and fixtures (not factories). Use when writing tests, adding test coverage, or creating fixtures. WHEN NOT: For RSpec or FactoryBot patterns (this project uses Minitest + fixtures exclusively). For test configuration/CI…
Skill Claude CodeCodex
Creates Turbo Streams, Turbo Frames, and morphing patterns for real-time UI updates. Use when adding real-time updates, partial page rendering, form submissions, or broadcasting. WHEN NOT: For Stimulus JavaScript controllers (see stimulus-patterns skill). For general view conventions (see rules/views.md).