concern-patterns

Create and refactor Rails model and controller concerns for shared behavior.

Updated Aug 23, 2026
One-click install
npx skills add https://github.com/hidalgofdz/prestamista --skill concern-patterns
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: concern-patterns
Source: https://github.com/hidalgofdz/prestamista/tree/main/.claude/skills/concern-patterns
Command: npx skills add https://github.com/hidalgofdz/prestamista --skill concern-patterns

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes references (resource) components.

What problem does it solve?

This Skill helps developers create organized and maintainable Rails applications by extracting shared code into concerns, reducing duplication and enhancing clarity.

Core Features & Use Cases

  • Concern Creation: Provides templates and best practices for creating model and controller concerns.
  • Refactoring Guidance: Assists in identifying duplicated code and extracting it into focused concerns.
  • Use Case: A developer notices multiple models contain similar association logic; they can refactor by creating a concern to encapsulate this behavior for reuse and consistency.

Quick Start

Use the concern-patterns skill to generate a new concern template and refactor recurring code into a shared concern.

Frequently Asked Questions about concern-patterns

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I extract shared behavior into Rails concerns?

Refactor duplicated Rails model and controller code by extracting it into a shared concern. This encapsulates recurring logic, reducing duplication and improving code maintainability across your application.

What is a Rails concern and when should I use one?

A Rails concern is a module for sharing model and controller behavior. Use one when multiple components share similar logic, such as associations, to ensure reuse and consistency across your application.

How do I create a concern template for a Rails model?

Generate a concern template to encapsulate shared Rails model behavior. This provides a structured starting point following best practices to organize and maintain shared logic efficiently.

What is the best way to refactor duplicated code in Rails controllers?

Extract duplicated Rails controller code into a shared concern. This approach encapsulates recurring behavior, enhancing clarity and promoting consistent reuse across your controllers.

Can I use concerns to organize shared association logic in Ruby on Rails?

Yes, concerns organize shared association logic in Ruby on Rails. By extracting similar association logic into a concern, you encapsulate the behavior for consistent reuse across multiple models.