rails-cto bundles the quality toolchain (RuboCop, Reek, Flog, Flay, Brakeman, bundler-audit, SimpleCov, Herb) that the rails-cto Claude plugin expects, and ships matching configuration templates you can drop into any Rails app with `rails-cto init`. It also provides a custom RuboCop cop that enforces the Minitest::Spec `subject` convention used by the plugin's skills.

A collection of custom RuboCop cops for personal use, including i18n best practices.

A RuboCop extension that provides a Style/AvoidUnless cop. It flags all uses of `unless` and auto-corrects them to `if` with an inverse or negated condition.

Shared RuboCop configuration for BoochTek projects. Includes opinionated defaults and support for custom cops.

A RuboCop extension focused on avoiding callback hell in Rails.

Deterministic RuboCop cops for canonical Ruby form

Reusable RuboCop configuration for CargoSense's Ruby projects.

A RuboCop extension for Chromebrew-specific practices.

A Rubocop/StandardRB plugin providing automated Rubocop foot-rake feedback to AI coding agents.

Shared rubocop config gem for every Ruby projects at Codeur SARL

Automatic committee code style checking tool. A RuboCop extension focused on enforcing committee.

A RuboCop extension for converting Ruby to Crystal.

RuboCop cops enforcing dev-doc best practices

RuboCop plugin enforcing elegant coding style: no comments (except SPDX and magic), no empty lines in methods

Collection rules for Fluentd plugin coding style

RuboCop extension enforcing 4Shark's Ruby, Rails, and RSpec conventions.

Automatic Grape code style checking tool. A RuboCop extension focused on enforcing Grape best practices and coding conventions.

Opinionated cops for developers who prefer conventional Rails — rich models, RESTful controllers, shallow jobs, no service objects.

A gem for sharing gusto rubocop rules

A collection of Rubocop rules that are used on hotstepper projects.