About real-world-rails
A research skill for examining how patterns are implemented across source code from 200+ production Rails applications. It is intended for Rails developers who need code-based analysis or comparisons grounded in real implementations.
Key features
- 01Search production Rails applications
- 02Read models, migrations, and schemas
- 03Analyze associations, validations, and queries
- 04Synthesize findings into analysis
- 05Run adversarial pattern comparisons when relevant
Use cases
- 01Research Rails implementation patterns
- 02Compare approaches across codebases
- 03Evaluate patterns against a project's architecture
Install
Copy the command and run it in a terminal.
npx skills add https:/After installing, type/real-world-railsin Claude Code to confirm it loaded.
Bundled filesmetadata.json
Details
From the project READMERails Pattern Research
What This Is
The Real World Rails repository is a collection of 200+ production Rails
application source code. The apps/ directory contains the full source of
each app — models, migrations, schema, controllers, views, concerns, gems.
The engines/ directory contains Rails engines.
Locating the Repository
Look for a directory called real-world-rails with an apps/ subdirectory.
Check the current working directory first, then ~/src/real-world-rails. If
not found, ask the user where it lives.
What To Do
The user gives you a topic. Spin up parallel agents to search the apps for how real codebases implement that pattern. Read actual code — models, schemas, migrations, associations, validations, query patterns — not just file names. Synthesize what you find into a clear analysis.
If the user's wording suggests they want help choosing a pattern for their current project (words like "compare for us", "which fits best", "adversarial", "debate", "evaluate for our project"), also spin up adversarial agents that each argue for a different pattern in the context of the current project's architecture and goals.