rails-expert

The 'rails-expert' skill is designed for developers working with Rails 7+ applications, providing specialized guidance for optimizing performance, managing real-time features, and implementing background processing. This skill addresses common challenges such as N+1 query problems, inefficient database interactions, and complex real-time or asynchronous workflows by offering structured patterns, templates, and best practices. It streamlines development by integrating Active Record optimizations, Hotwire enhancements, Action Cable WebSocket configurations, and Sidekiq job management, ensuring high-performing and maintainable Rails applications.

Its main features include Active Record query optimization using 'includes' and 'eager_load', setup and management of Turbo Frames and Turbo Streams for partial page updates, and configuration of Action Cable for WebSocket connections to enable real-time interactions. Additionally, it provides templates for Sidekiq workers to handle background job processing reliably and patterns for writing comprehensive RSpec test suites for models, requests, and system behaviors. Developers are also guided through migration management, code validation using RuboCop, and strategies for auditing performance and caching.

This skill is particularly useful for backend developers, full-stack engineers, or Rails specialists who are building applications that require real-time updates, background job processing, or optimized database queries. It is ideal for teams adopting Hotwire for modern Rails front-end interactivity and those looking to implement maintainable, high-performance Rails 7+ applications with clear, tested, and structured workflows.