222 mods in this category, of every kind an agent can take. Each one carries what it costs per session, what the scan found, and whether it is the original.
Skill Claude CodeCodex
Contribute to RubyLLM - set up the repo, run and record specs, add providers or chat options, work on the Rails integration, and edit docs. Use when fixing a bug, building a feature, writing specs, or changing documentation in the RubyLLM codebase.
Instructions file
Claude Code instructions for crmne/ruby_llm, a project described as: One delightful Ruby framework for every major AI provider. Build AI agents, chatbots, RAG apps, and multimodal workflows in beautiful, expressive code.
Plugin Claude Code
Track AWS SES bounces, complaints, and delivery stats from Claude Code. Requires a Sessy API key. Does not send email or change SES settings.
Instructions file CodexOpenCode
AGENTS.md instructions for marckohlbrugge/sessy, covering agents.md, what is sessy?, commands, database and architecture.
Instructions file
Claude Code instructions for marckohlbrugge/sessy, a project described as: Open-source email observability for AWS SES.
Instructions file CodexOpenCode ✓ vendor
AGENTS.md instructions for modelcontextprotocol/ruby-sdk, covering agents.md, project overview, dev environment setup, build and test commands and testing instructions.
marckohlbrugge/37signals-skills
Skill Claude CodeCodex
Review Ruby/Rails code like DHH would - direct, opinionated, allergic to over-engineering. Use when the user runs /dhh or asks for a DHH-style review of a diff, file, or recent changes.
Instructions file CodexOpenCode
Instructions for ruby2d/ruby2d, covering ruby 2d guide for ai coding agents, testing, architecture, multi-ruby support and documentation.
Instructions file
Instructions for ruby2d/ruby2d, a project described as: 🎨 The Ruby 2D gem.
Skill Claude CodeCodex
Rootstrap Rails conventions. Use when writing, reviewing, or editing any Rails code — controllers, models, migrations, routes, views, mailers, initializers, locale files, or Rails config. Covers routing, ActiveRecord, migrations, i18n, time zones, mailers, assets, Bundler groups, and logging.
Skill Claude CodeCodex
Rootstrap RSpec conventions. Use when writing, reviewing, or editing RSpec test files (spec//spec.rb, spec/railshelper.rb, spec/spechelper.rb, spec/support//.rb) or factories. Covers describe/context structure, let/subject, matchers, factories, mocking/stubbing, shared examples, and spec types (model, request…
Skill Claude CodeCodex
Rootstrap Ruby style conventions. Use when writing, reviewing, or editing any Ruby source file (.rb, .rake, Gemfile, Rakefile, .gemspec, config.ru) to ensure code follows the Rootstrap Ruby style guide — covers layout, syntax, naming, classes/modules, exceptions, collections, strings, regexes, metaprogramming, and…
Instructions file
Instructions for rootstrap/rails_api_base, covering claude.md, what this repo is, common commands, testing notes and architecture.
Settings file Claude Code ✓ vendor
Agent settings declaring 1 allowed tools.
Skill Claude CodeCodex ✓ vendor
Benchmark Rubydex indexing performance on RBS core/stdlib, comparing the current branch against main. Measures maximum RSS and execution time.
Skill Claude CodeCodex ✓ vendor
Reviews code changes for Rubydex.
Instructions file GitHub Copilot ✓ vendor
Copilot instructions for Shopify/rubydex, a project described as: A high-performance static analysis toolkit for Ruby.
Instructions file CodexOpenCode ✓ vendor
AGENTS.md instructions for Shopify/rubydex, covering instructions, project overview, documentation, ruby gem and structure.
Instructions file ✓ vendor
Claude Code instructions for Shopify/rubydex: For detailed project documentation and agent instructions, see AGENTS.md.
Skill Claude CodeCodex ✓ vendor
Remediate a send/send call that reaches a private method, restoring a real public seam instead of bypassing visibility. Use when send is being used to invoke private functionality in a class.
vidarh/writing-a-compiler-in-ruby
Instructions file CodexOpenCode
AGENTS.md instructions for vidarh/writing-a-compiler-in-ruby, a project described as: Code from my series on writing a Ruby compiler in Ruby.
vidarh/writing-a-compiler-in-ruby
Instructions file
Claude Code instructions for vidarh/writing-a-compiler-in-ruby, covering claude.md, critical rule: never edit rubyspec files, fix the operator definition, critical rule: never revert without saving and critical rule: never use instancevariableset/get.
thoughtbot/rails-audit-thoughtbot
Skill Claude CodeCodex
Perform comprehensive code audits of Ruby on Rails applications based on thoughtbot best practices. Use this skill when the user requests a code audit, code review, quality assessment, or analysis of a Rails application. The skill analyzes the entire codebase focusing on testing practices (RSpec), security…
Agent Claude Code
Orchestrates incremental refactoring of Rails codebases toward 37signals patterns. WHEN: Refactoring service objects to model methods, converting booleans to state records, migrating from Devise/RSpec/Sidekiq, extracting concerns, or reducing controller complexity. WHEN NOT: Building new features (use…
At most 3 mods per repository are shown here, and a mod shipped inside a plugin is left to that plugin's page — the rest are on their repository pages: