ruby-pro — Claude Code subagent: features and setup
This subagent handles Ruby and Rails work, from metaprogramming to tests. Bring it in for refactoring, performance analysis, or complex Ruby features.
/plugin marketplace add wshobson/agents
/plugin install web-scripting@claude-code-workflowsWhat ruby-pro does
ruby-pro is geared toward idiomatic Ruby and Rails patterns. It can help with ActiveRecord, controllers and views, gem development, tests in RSpec or Minitest, and reviews of legacy code or performance concerns.
Its instructions cover modules, mixins, DSLs, blocks, enumerables, and exception handling. For performance work, they mention benchmark-ips; for code checks, RuboCop. The agent can include a Gemfile and .rubocop.yml when relevant. It inherits the model setting from its environment. Readability comes before performance, so optimization requests should make that trade-off clear.
What it helps with
- refactor legacy Ruby code
- inspect Ruby application performance
- build a DSL with modules and mixins
- write Rails tests with RSpec or Minitest
- prepare a Ruby gem specification
Example prompts for the agent
- Refactor this Ruby code while keeping it readable.
- Review this method's performance and suggest benchmark-ips measurements.
- Add RSpec tests for this Rails model.
How to install ruby-pro
1Plugin marketplace
/plugin marketplace add wshobson/agents/plugin install web-scripting@claude-code-workflows2Manually: put the files in place
.claude/agents/ruby-pro.mdFor all projects use ~/.claude/agents/. Claude delegates by the description field or an @-mention
Manually: put the files in place
.codex/agents/ruby-pro.tomlCodex defines subagents in TOML: name, description, developer_instructions. Move the Markdown text into developer_instructions by hand. For all projects use ~/.codex/agents/
Manually: put the files in place
.cursor/agents/ruby-pro.mdCursor also reads .claude/agents/
Step by step, with commands for each platform: Claude Code subagents: how to create one, call it and keep context clean
Questions about ruby-pro
How do I install ruby-pro in Codex?
Add the subagent file at .codex/agents/ruby-pro.toml.
What does ruby-pro do?
It assists with Ruby and Rails code, including refactoring, performance analysis, gem work, and tests.
Which testing frameworks does ruby-pro cover?
Its instructions cover both RSpec and Minitest.
Source text
ruby-pro.md · MIT
--- name: ruby-pro 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. model: inherit --- 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.
© Seth Hobson · MIT · wshobson/agents
