ruby

name	ruby
description	Ruby and Rails development workflow. Use when editing Ruby, Rails, Bundler, RSpec, RuboCop, migrations, jobs, policies, services, or gems.

Ruby

Inspect first

• Read Gemfile, Gemfile.lock, .ruby-version, .rubocop.yml, Rakefile, and Rails dirs when relevant.
• Prefer existing app patterns over new abstractions.

Common checks

Run the smallest relevant check:

bundle exec ruby -c path/to/file.rb
bundle exec rspec path/to/spec.rb
bundle exec rubocop path/to/file.rb
bin/rails test path/to/test.rb
bin/rails zeitwerk:check

Rails safety

• Migrations must be reversible or explain why not.
• Avoid data-loss migrations without explicit approval.
• For policies/services/jobs, grep sibling patterns before editing.
• Prefer framework features over custom plumbing.