Discover Development skills, compare source repositories and read the instructions for each workflow.
This skill should be used when the user asks about "Ruby basics", "blocks", "procs", "lambdas", "enumerables", "iterators", "pattern matching", "error handling", "exceptions", "Ruby 3 features", "Ractors", "Dat...
This skill should be used when the user asks about "controllers", "actions", "params", "strong parameters", "filters", "before_action", "after_action", "callbacks", "respond_to", "render", "redirect_to", "flash...
This skill should be used when the user asks about "WebSockets", "Action Cable", "real-time", "channels", "broadcasting", "streams", "subscriptions", "live updates", "push notifications", "chat features", or ne...
This skill should be used when the user asks about "migrations", "database schema", "create_table", "add_column", "remove_column", "add_index", "foreign keys", "db:migrate", "db:rollback", "schema.rb", "change_...
This skill should be used when the user asks about "file uploads", "Active Storage", "attachments", "has_one_attached", "has_many_attached", "image variants", "S3", "cloud storage", "direct uploads", "file proc...
This skill should be used when the user asks about "Minitest", "Rails testing", "test/", "fixtures", "ActiveSupport::TestCase", "ActionDispatch::IntegrationTest", "system tests", "functional tests", "assert", "...
Rails caching strategies including fragment caching, low-level caching with Rails.cache, cache keys, and conditional GET. Use when the user asks about caching performance or invalidation in Rails.
This skill should be used when the user asks about "test doubles", "mocking", "stubbing", "spies", "verifying doubles", "partial doubles", "allow", "receive", "have_received", or needs guidance on isolating tes...
This skill should be used when the user asks about "rich text", "Action Text", "Trix editor", "WYSIWYG", "has_rich_text", "content editing", "embedded attachments", "formatted text", "text editor", or needs gui...
This skill should be used when the user asks about "gem development", "create a gem", "gemspec", "publish gem", "RubyGems", "bundler", "gem structure", "gem versioning", "semantic versioning", "gem testing", "g...
Deploy Rails apps with Kamal. Use when setting up Kamal, configuring deploy.yml, managing secrets, or running deploy/rollback commands.
Guidance for integrating JavaScript in Rails: import maps, jsbundling-rails (Bun/esbuild/Rollup/Webpack), Turbo helpers, request.js, and UJS replacements. Use when the user asks about JavaScript setup, bundlers...
This skill should be used when the user asks about "Ruby performance", "optimization", "profiling", "benchmarking", "memory", "garbage collection", "GC", "benchmark-ips", "stackprof", "memory_profiler", "slow c...
This skill should be used when the user asks about "shared examples", "shared contexts", "spec structure", "test organization", "describe blocks", "RSpec tagging", "spec file layout", or needs guidance on organ...
This skill should be used when the user asks about "Hotwire", "Turbo", "Turbo Drive", "Turbo Frames", "Turbo Streams", "Stimulus", "Stimulus controllers", "Stimulus values", "Stimulus targets", "Stimulus action...
This skill should be used when the user asks about "Rake", "rake tasks", "Rakefile", "task dependencies", "rake namespace", "rake desc", "rake file tasks", "invoke", "execute", "task arguments", or needs guidan...
This skill should be used when the user asks to "write an RSpec test", "create a spec", "use describe blocks", "set up let variables", "use before hooks", "understand RSpec structure", mentions "subject", "cont...
This skill should be used when the user asks about "views", "ERB templates", "partials", "layouts", "render", "form_with", "form helpers", "view helpers", "link_to", "content_for", "yield", "collection renderin...
This skill should be used when the user asks about "slow specs", "test performance", "parallel tests", "spec profiling", "let vs let!", "build vs create", "test optimization", or needs guidance on making RSpec...
This skill should be used when the user asks about "RSpec matchers", "expect syntax", "custom matchers", "compound matchers", "should vs expect", mentions "eq", "be", "include", "match", "have_attributes", or n...
This skill should be used when the user asks about "Rails conventions", "Rails best practices", "Rails file structure", "MVC patterns", "naming conventions", "Rails Way", "convention over configuration", "where...
This skill should be used when the user asks about "email", "mailers", "Action Mailer", "deliver_now", "deliver_later", "email templates", "attachments", "mail previews", "SMTP", "email configuration", "interce...
This skill should be used when the user asks about "Ruby standard library", "stdlib", "FileUtils", "JSON", "CSV", "YAML", "Net::HTTP", "URI", "OpenStruct", "Struct", "Set", "Date", "Time", "Pathname", "StringIO...
This skill should be used when the user asks about "ActiveRecord", "database queries", "associations", "validations", "migrations", "scopes", "callbacks", "N+1 queries", "eager loading", "includes", "joins", "e...
The default order uses GitHub repository stars from our indexed data. Stars belong to the source repository and may be shared by multiple skills. They indicate repository interest, not skill installs or an independent quality score.