rails-guides
Official Rails documentation. Use when asked about any Rails-specific topic including ActiveRecord, routing, controllers, views, mailers, jobs, Action Cable, Action Text, Active Storage, migrations, validations, callbacks, associations, caching, security, or internals.
Works with
--- name: rails-guides description: Official Rails documentation. Use when asked about any Rails-specific topic including ActiveRecord, routing, controllers, views, mailers, jobs, Action Cable, Action Text, Active Storage, migrations, validations, callbacks, associations, caching, security, or internals. license: MIT --- # Rails Guides Official Rails documentation for reference during development. ## Topic Map ### Getting Started - `references/getting_started.md` — Rails basics, MVC overview, first app walkthrough - `references/command_line.md` — `rails` command, generators, rake tasks - `references/configuring.md` — Environments, initializers, credentials, database.yml - `references/autoloading_and_reloading_constants.md` — Zeitwerk, module naming, reload behavior - `references/initialization.md` — Rails boot sequence, railties, engines ### Active Record - `references/active_record_basics.md` — Models, CRUD, conventions, migrations - `references/active_record_querying.md` — Finders, scopes, joins, includes, explain - `references/active_record_validations.md` — Built-in validators, custom validators, errors - `references/active_record_callbacks.md` — Lifecycle hooks, after_commit, skip_callback - `references/association_basics.md` — belongs_to, has_many, has_one, HABTM, polymorphic - `references/active_record_migrations.md` — Schema changes, reversible migrations, db:migrate - `references/active_record_encryption.md` — Encrypting attributes at rest - `references/active_record_composite_primary_keys.md` — Multi-column primary keys - `references/active_record_multiple_databases.md` — Multi-DB setup, sharding, replicas - `references/active_record_postgresql.md` — PostgreSQL-specific features (hstore, jsonb, arrays) - `references/active_model_basics.md` — ActiveModel outside ActiveRecord, form objects ### Action Controller - `references/action_controller_overview.md` — Controllers, params, filters, sessions, cookies - `references/action_controller_advanced_topics.md` — Streaming, live, metal, http auth - `references/routing.md` — Resources, namespaces, constraints, named routes, URL helpers ### Action View - `references/action_view_overview.md` — Templates, partials, layouts, formats - `references/action_view_helpers.md` — form_with, link_to, tag, content_tag, asset helpers - `references/form_helpers.md` — form_with, field helpers, nested forms, uploads - `references/layouts_and_rendering.md` — render, redirect_to, respond_to, layout inheritance ### Frontend / Hotwire - `references/working_with_javascript_in_rails.md` — Import maps, Turbo, Stimulus overview - `references/action_text_overview.md` — Rich text with Trix, attachments ### Jobs & Mailers - `references/active_job_basics.md` — Job classes, queues, retry, test helpers - `references/action_mailer_basics.md` — Mailers, templates, deliveries, previews - `references/action_mailbox_basics.md` — Incoming email routing and processing ### Storage - `references/active_storage_overview.md` — File uploads, variants, direct uploads, S3/GCS/Azure ### Testing - `references/testing.md` — Minitest, fixtures, test types, helpers, assertions ### Real-Time - `references/action_cable_overview.md` — WebSockets, channels, broadcasting, connections ### Security & Performance - `references/security.md` — SQL injection, XSS, CSRF, mass assignment, secure headers - `references/caching_with_rails.md` — Fragment, action, HTTP caching, cache stores - `references/asset_pipeline.md` — Sprockets, Propshaft, precompile, digests - `references/tuning_performance_for_deployment.md` — Puma, connection pooling, GC ### Internationalization - `references/i18n.md` — Translation files, locale, pluralization, date formats ### API & Rack - `references/api_app.md` — API-only Rails, slim middleware stack - `references/rails_on_rack.md` — Middleware stack, Rack integration ### Extending Rails - `references/engines.md` — Mountable engines, isolated namespaces, hooks, testing - `references/generators.md` — Custom generators, templates, overriding defaults - `references/plugins.md` — Creating gem-based plugins, core extensions, testing ### Advanced - `references/active_support_core_extensions.md` — String, Array, Hash, Date extensions - `references/active_support_instrumentation.md` — Notifications, log subscribers - `references/association_basics.md` — Association options, eager loading strategies - `references/debugging_rails_applications.md` — debug gem, logger, web-console, byebug - `references/error_reporting.md` — Error::Reporter, Sentry integration - `references/threading_and_code_execution.md` — Thread safety, executor, reloader - `references/upgrading_ruby_on_rails.md` — Version upgrade paths, deprecation handling
More Performance skills
seo-audit
coreyhaines31/marketingskills
When the user wants to audit, review, or diagnose SEO issues on their site. Also use when the user mentions "SEO audit," "technical SEO," "why am I not ranking," "SEO issues," "on-page SEO," "meta tags review," "SEO health check," "my traffic dropped," "lost rankings," "not showing up in Google," "site isn't ranking," "Google update hit me," "page speed," "core web vitals," "crawl errors," or "indexing issues." Use this even if the user just says something vague like "my SEO is bad" or "help with SEO" — start with an audit. For building pages at scale to target keywords, see programmatic-seo. For adding structured data, see schema. For AI search optimization, see ai-seo.
competitor-profiling
coreyhaines31/marketingskills
When the user wants to research, profile, or analyze competitors from their URLs. Also use when the user mentions 'competitor profile,' 'competitor research,' 'competitor analysis,' 'profile this competitor,' 'analyze competitor,' 'competitive intelligence,' 'competitor deep dive,' 'who are my competitors,' 'competitor landscape,' 'competitor dossier,' 'competitive audit,' or 'research these competitors.' Input is a list of competitor URLs. Output is structured competitor profile markdown files. For creating comparison/alternative pages from profiles, see competitors. For sales-specific battle cards, see sales-enablement.
vercel-optimize
vercel-labs/agent-skills
Use for Vercel cost and performance optimization on deployed projects, especially Next.js, SvelteKit, Nuxt, and limited Astro apps. Collect Vercel metrics, usage, project config, and code scan results first; investigate only metric-backed candidates; produce ranked recommendations grounded in verified files and version-aware Vercel/framework docs. Trigger for Vercel bill reduction, slow or expensive routes, caching opportunities, Function Invocations, Build Minutes, Fast Data Transfer, Core Web Vitals, Bot Management, Fluid compute, or cost breakdown requests.
