A RuboCop extension focused on enforcing Rails best practices and coding conventions.
Code style checking for RSpec files.
An extension of RuboCop focused on code performance checks.
RuboCop's AST extensions and NodePattern functionality
An Emacs interface for RuboCop
RuboCop for Markdown code snippets
Best practices for writing your tests
Code style checking for Sequel
A community-driven Capybara coding style guide