Backend .mdc

Rails

Cursor rules for Rails development with basic setup.

How to use
  1. Copy the rule content.
  2. In your project root, create .cursorrules or .cursor/rules/rails.mdc
  3. Paste the content and save.

Rails 8 Development Guidelines

  • Prefer Rails command-line generators over hand-written boilerplate.
  • Use bin/dev for local development and check logs after significant changes.
  • Follow Rails 8 conventions for Solid Queue, Solid Cache, Solid Cable, Propshaft, and Kamal where appropriate.
  • Keep controllers RESTful and focused; use service objects for complex business logic.
  • Use PostgreSQL, proper indexes, connection pooling, and safe migrations.
  • Write Minitest coverage for models, controllers, and integration flows.
  • Use Hotwire for standard Rails interactivity and Vite only when npm-managed JavaScript is needed.

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