Cursor Rules - Rails 8
Production-tested Cursor rules for Rails 8 + Ruby 3.3+. Make Cursor (or any Claude-powered IDE) write Rails 8 the way a senior Rails engineer would: Hotwire by default, Solid Queue / Cache / Cable instead of Redis-anywhere, built-in authentication before Devise, no Rails 5 habits leaking in. WHAT YOU GET * 9 modular .mdc rule files: overview, routes & controllers, Hotwire, Solid stack, models & migrations, naming & structure, testing, performance, common pitfalls * A single-file .cursorrules for legacy Cursor * 5 worked example prompts: model + migration, Turbo Stream comment form, real-time broadcast via Solid Cable, Solid Queue welcome-email job, Minitest coverage for the post-creation flow * ~1,400 lines, every rule from real Rails 8 production work INSTALL IN 5 MINUTES mkdir -p .cursor/rules && cp -r rules/*.mdc .cursor/rules/ Or copy the legacy .cursorrules to your project root. WHAT CHANGES AFTER INSTALL * Suggestions default to Solid Queue, Solid Cache, Solid Cable * New forms get status: :unprocessable_entity on re-render (Turbo-correct) * Controllers get current_user.posts.build (scoping-as-authorization) * Tests scaffold in Minitest with assert_difference and assert_response :unprocessable_entity * N+1 queries get caught with includes() proactively * Migrations on large tables get algorithm: :concurrently flagged PAIRS WELL WITH * Cursor Rules - Next.js 15 ($9): sibling pack for the JS side of the stack * Solo Dev Pack ($19): 8 Claude Skills for code review, PR descriptions, ADRs, postmortems Single-developer license. Use across all your personal and client projects forever. Future updates free for buyers, re-download from your Gumroad library. Built by Brae, a studio for the people who build things.
Get it → wattn.gumroad.com