Generate your pattern files through this generator: Eq. rails g pattern MyCustomDecorator

Shared RuboCop rules for publishing platform Ruby projects.

A gem that evaluates the code health of Ruby on Rails applications using metrics inspired by CodeScene's research on technical debt and maintainability.

RbHint is a Ruby code style checking and code formatting tool. It aims to encourage adoption of the community-driven Ruby Style Guide.

Inline snapshot expectations for RSpec

rspec-sprint doctor runs your suite once (via test-prof's FactoryProf + rspec's JSON formatter), interprets the output against opinionated heuristics, and asserts the top few things to fix — diagnosis plus concrete prescription, not just numbers. It wraps existing profilers; it does not reimpleme...

Enforces the verbose, beginner-friendly Ruby style taught in firstdraft classroom materials. Ships three inheritable configurations (shared, student, author) plus six custom cops that keep polished Rails idioms out of lesson code.

Code style checking for CableReady

A RuboCop extension focused on avoiding callback hell in Rails.

RuboCop configuration for our Ruby on Rails projects

A RuboCop cop that statically detects Ruby code relying on the pre-Ruby 3.4 Hash#inspect output format (e.g. {:sym=>1}). Ruby 3.4 changed Hash#inspect to produce {sym: 1, "str" => 2}, breaking tests that hardcode the old format. Run as part of `pdk validate` to catch incompatibilities before upgr...

Custom RuboCop cops for the LegionIO async job engine ecosystem. Enforces helper usage, constant safety, rescue logging, framework conventions, and LEX extension structure.

Type Utility for Ruby.

A RuboCop plugin that ships custom cops capturing Sandi-Metz-style design heuristics for Ruby and Rails code.

This gem provides static analysis for common prompt engineering anti-patterns, helping developers write better prompts for LLM interactions.

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Code style checking for StimulusReflex

Recommended Rubocop configuration for Ruby projects created by the Columbia University Libraries

This is a sample Pet Store Server based on the OpenAPI 3.0 specification. You can find out more about Swagger at [https://swagger.io](https://swagger.io). In the third iteration of the pet store, we've switched to the design first approach! You can now help us improve the API whether it's by mak...

Scope Hunter is a RuboCop extension that detects ActiveRecord query chains that duplicate existing named scopes and suggests using those scopes instead. It indexes model scopes, canonicalizes relation chains, and flags matches with an autocorrect that replaces the initial query with Model.scope w...