MCPInstall

ruby-rails-application

Develop Ruby on Rails applications with models, controllers, views, Active Record ORM, authentication, and RESTful routes. Use when building Rails applications, managing database relationships, and implementing MVC architecture.

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655
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill ruby-rails-application
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads ruby-rails-application automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

SKILL.md

The instructions your agent reads when the skill is triggered.

Ruby Rails Application

Table of Contents

Overview

Build comprehensive Ruby on Rails applications with proper model associations, RESTful controllers, Active Record queries, authentication systems, middleware chains, and view rendering following Rails conventions.

When to Use

  • Building Rails web applications
  • Implementing Active Record models with associations
  • Creating RESTful controllers and actions
  • Integrating authentication and authorization
  • Building complex database relationships
  • Implementing Rails middleware and filters

Quick Start

Minimal working example:

rails new myapp --api --database=postgresql
cd myapp
rails db:create

Reference Guides

Detailed implementations in the references/ directory:

GuideContents
Rails Project SetupRails Project Setup
Models with Active RecordModels with Active Record
Database MigrationsDatabase Migrations
Controllers with RESTful ActionsControllers with RESTful Actions
Authentication with JWTAuthentication with JWT
Active Record QueriesActive Record Queries
SerializersSerializers

Best Practices

✅ DO

  • Use conventions over configuration
  • Leverage Active Record associations
  • Implement proper scopes for queries
  • Use strong parameters for security
  • Implement authentication in ApplicationController
  • Use services for complex business logic
  • Implement proper error handling
  • Use database migrations for schema changes
  • Validate all inputs at model level
  • Use before_action filters appropriately

❌ DON'T

  • Use raw SQL without parameterization
  • Implement business logic in controllers
  • Trust user input without validation
  • Store secrets in code
  • Use select * without specifying columns
  • Forget N+1 query problems (use includes/joins)
  • Implement authentication in each controller
  • Use global variables
  • Ignore database constraints

FAQ

What does the ruby-rails-application skill do?

Develop Ruby on Rails applications with models, controllers, views, Active Record ORM, authentication, and RESTful routes. Use when building Rails applications, managing database relationships, and implementing MVC architecture.

How do I install ruby-rails-application?

Run npx skills add https://github.com/aj-geddes/useful-ai-prompts --skill ruby-rails-application in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/ruby-rails-application/ (personal) or .claude/skills/ruby-rails-application/ (project).

Which AI agents can use ruby-rails-application?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is ruby-rails-application safe to install?

No partner security audit is available yet. Skills can run commands and scripts, so read the SKILL.md and any bundled files before installing.

Who maintains ruby-rails-application?

It is published by aj-geddes in aj-geddes/useful-ai-prompts. It has 655 recorded installs.

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