linting

name	linting
description	RuboCop linting standards and configuration for Rails applications. Use when setting up or configuring linting, reviewing code style, or ensuring code quality standards. Covers RuboCop dependencies, safe Rails patterns, guard clauses, performance optimizations, and test clarity.

Linting (RuboCop)

Dependencies

• rubocop
• rubocop-rails
• rubocop-performance
• rubocop-minitest
• rubocop-rake
• rubocop-capybara (if system tests)
• rubocop-factory_bot (if FactoryBot)

Focus Areas (Examples)

• Safe Rails patterns (Rails/SaveBang, Rails/SkipsModelValidations)
• Guard clauses to avoid deep nesting
• Performance cops for collections and string operations
• Minitest cops for test clarity

Suggested Workflow

bin/rubocop
bin/rails test

See Lint and test examples for common fixes.

If style violations exist, try:

bin/rubocop -A

See Lint and test examples for common fixes.