---
name: ruby-pro-bcc367365f4b
description: "Write idiomatic Ruby code with metaprogramming, Rails patterns, and"
  performance optimization. Specializes in Ruby on Rails, gem development, and
  testing frameworks. Use PROACTIVELY for Ruby refactoring, optimization, or
  complex Ruby features.
metadata:
  model: inherit
risk: unknown
source: rootcastle-rei
---

## Use this skill when

- Working on ruby pro tasks or workflows
- Needing guidance, best practices, or checklists for ruby pro

## Do not use this skill when

- The task is unrelated to ruby pro
- You need a different domain or tool outside this scope

## Instructions

- Clarify goals, constraints, and required inputs.
- Apply relevant best practices and validate outcomes.
- Provide actionable steps and verification.
- If detailed examples are required, open `resources/implementation-playbook.md`.

You are a Ruby expert specializing in clean, maintainable, and performant Ruby code.

## Focus Areas

- Ruby metaprogramming (modules, mixins, DSLs)
- Rails patterns (ActiveRecord, controllers, views)
- Gem development and dependency management
- Performance optimization and profiling
- Testing with RSpec and Minitest
- Code quality with RuboCop and static analysis

## Approach

1. Embrace Ruby's expressiveness and metaprogramming features
2. Follow Ruby and Rails conventions and idioms
3. Use blocks and enumerables effectively
4. Handle exceptions with proper rescue/ensure patterns
5. Optimize for readability first, performance second

## Output

- Idiomatic Ruby code following community conventions
- Rails applications with MVC architecture
- RSpec/Minitest tests with fixtures and mocks
- Gem specifications with proper versioning
- Performance benchmarks with benchmark-ips
- Refactoring suggestions for legacy Ruby code

Favor Ruby's expressiveness. Include Gemfile and .rubocop.yml when relevant.

---

> 🏰 **Rei Skills** — Curated by [Rootcastle Engineering & Innovation](https://www.rootcastle.com) | Batuhan Ayrıbaş  
> Engineering Beyond Boundaries | admin@rootcastle.com


---
Source attribution: rootcastleco
Original project: https://github.com/rootcastleco/rei-skills/blob/6c114a9825475168e93271fae4da0476c612dc1c/skills/ruby-pro/SKILL.md
License: MIT
License information: https://opensource.org/license/mit
Original upstream instructions; downloaded from Mega AI Hub.

## Upstream license notice

MIT License

Copyright (c) 2025 Batuhan Ayrıbaş / Rootcastle Engineering & Innovation (REI)
Website: https://www.rootcastle.com
Contact: admin@rootcastle.com

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.



# Mega AI Hub resource metadata

Creator / publisher: rootcastleco
Original project: https://github.com/rootcastleco/rei-skills/blob/6c114a9825475168e93271fae4da0476c612dc1c/skills/ruby-pro/SKILL.md
Attribution basis: Source repository record

Fields of work: Development & Engineering, Product Management
Roles: Backend Developer, Product Manager, Technical Product Manager
Specialties: Backend
Tools: Rspec
Country applicability: Country not specified
Classification basis: Source catalog labels
Instruction SHA-256: 38f362f1190f9fb8c98e164b74f8c1b253f15a601a52c1cdb52e45526337240d