Skill Claude CodeCodex
Action Mailer patterns for Rails applications. Automatically invoked when working with email delivery, mailer classes, email templates, mailer previews, interceptors, or delivery configuration. Triggers on "mailer", "email", "ActionMailer", "deliverlater", "delivernow", "mail template", "email preview", "SMTP"…
Skill Claude CodeCodex
Analyzes and recommends ActiveRecord model patterns including associations, validations, scopes, callbacks, migrations, and query optimization. Use when designing models, reviewing schema, adding associations (hasmany, belongsto), writing validations, creating scopes, or planning migrations. NOT for controller logic…
Skill Claude CodeCodex
Analyzes and recommends Rails service object patterns for business logic extraction including command objects, result objects, form objects, query objects, and external API integration. Use when extracting logic from controllers/models, orchestrating multi-step workflows, or organizing app/services. NOT for simple…
Skill Claude CodeCodex
Detects a Rails project's architecture axes — logic placement (native vs extracted) and delivery (html vs api) — so other skills load profile-appropriate guidance without inline conditionals. Use when planning architecture or when a recommendation depends on where business logic lives or whether the app renders HTML…
Skill Claude CodeCodex
Analyzes Rails test suites and recommends testing best practices for RSpec and Minitest. Use when writing new tests, reviewing test coverage, fixing flaky tests, improving test performance, choosing between test types (unit, integration, system, request), or setting up factories and fixtures. NOT for production…
Skill Claude CodeCodex
Analyzes Rails view templates, partials, layouts, helpers, and form patterns for best practices. Use when reviewing ERB templates, improving view performance with fragment caching, fixing form helpers, organizing partials, adding accessibility attributes, or evaluating collection rendering. NOT for Stimulus/Turbo…
Skill Claude CodeCodex
WHAT: Language-agnostic corrective guidance for the refactoring phase. WHEN: Agent is restructuring code, fixing code smells, reducing complexity, or improving maintainability. NOT FOR: Writing new features, debugging runtime errors, performance tuning, or object design decisions.
Skill Claude CodeCodex
Automatically invoked when making decisions about Ruby code structure and organization. Triggers on "class or module", "should this be a class", "struct vs class", "PORO", "data object", "design pattern", "class vs module", "when to use class", "module vs class", "stateless class", "value object", "data container"…
Skill Claude CodeCodex
Automatically invoked when analyzing code quality, refactoring, or maintainability. Triggers on "code smell", "refactor", "code quality", "technical debt", "complexity", "maintainability", "clean code", "SOLID", "DRY", "improve code", "simplify", "extract method", "extract class", "long method", "large class"…