A comprehensive Rails optimization guide with 45 rules across database queries, controllers, security, caching, and background jobs. Reach for this when you're writing ActiveRecord queries, building API endpoints, or reviewing code for N+1s and performance issues. The priority system is smart: database and controller patterns are marked critical, while background job patterns sit lower since they affect fewer requests. Each rule links to detailed references with examples, though the real value is having eager loading, indexing, and strong params checks baked into your workflow. It's opinionated about service objects and query objects for complex logic, which keeps models from turning into thousand-line monsters.
npx skills add https://github.com/pproenca/dot-skills --skill rails-dev