Can I use this for Rails API-only projects?

Absolutely. While it includes Hotwire support, it provides deep expertise in Rails API mode, service objects, and JSON serialization patterns.

Does this skill support the latest Ruby 3.3 features?

Yes, it is specifically optimized for Ruby 3.3+, including YJIT performance tuning, pattern matching, Data classes, and endless method definitions.

Does it provide database optimization advice?

Yes, it includes advanced ActiveRecord patterns for query optimization, indexing strategies, and handling complex associations or migrations.

How does it help with frontend development in Rails?

The skill focuses on the Hotwire stack, providing detailed implementation patterns for Turbo Frames, Turbo Streams, and Stimulus controllers.

What testing frameworks are prioritized?

The skill defaults to RSpec, offering patterns for model validations, request specs, system tests, and test data management with FactoryBot.

Ruby & Rails Specialist

Name: Ruby & Rails Specialist
Author: modu-ai

bymodu-ai

•

API Development

Accelerates modern Ruby and Rails development with expert guidance on Ruby 3.3+ features and Rails 7.2 patterns.

About

The moai-lang-ruby skill transforms Claude into a specialized Ruby on Rails power-user, focusing on the latest standards in the Ruby ecosystem. It provides production-ready patterns for Ruby 3.3+ features like YJIT and Data classes, alongside Rails 7.2 best practices for ActiveRecord, Hotwire, and Turbo. Whether you are building complex REST APIs, implementing reactive frontends with Stimulus, or writing comprehensive RSpec tests, this skill ensures your implementation follows modern conventions for performance, security, and maintainability.

Key Features

Background processing and job scheduling with Sidekiq and ActiveJob
Advanced ActiveRecord modeling, migrations, and query optimization
Rails 7.2 full-stack development with Turbo and Stimulus (Hotwire)
Ruby 3.3+ optimization including YJIT performance and pattern matching
Comprehensive testing patterns using RSpec, FactoryBot, and Capybara
16 GitHub stars

Use Cases

Refactoring legacy Ruby code to leverage modern syntax like Data classes and endless methods.
Building high-performance Rails 7.2 web applications with reactive UIs via Hotwire.
Developing scalable RESTful APIs with integrated RSpec testing and documentation.

About

Key Features

Background processing and job scheduling with Sidekiq and ActiveJob
Advanced ActiveRecord modeling, migrations, and query optimization
Rails 7.2 full-stack development with Turbo and Stimulus (Hotwire)
Ruby 3.3+ optimization including YJIT performance and pattern matching
Comprehensive testing patterns using RSpec, FactoryBot, and Capybara
16 GitHub stars

Use Cases

Refactoring legacy Ruby code to leverage modern syntax like Data classes and endless methods.
Building high-performance Rails 7.2 web applications with reactive UIs via Hotwire.
Developing scalable RESTful APIs with integrated RSpec testing and documentation.