Agent skill
ruby-patterns
Ruby development patterns including package manager detection (Bundler), project structure, and idiomatic Ruby practices. Use when writing, reviewing, or debugging Ruby code.
Install this agent skill to your Project
npx add-skill https://github.com/majiayu000/claude-skill-registry/tree/main/skills/other/other/ruby-patterns
SKILL.md
Ruby Development Patterns
Package Manager Detection (CRITICAL)
Before running ANY Ruby commands, detect the package manager:
| File | Package Manager | Install | Run |
|---|---|---|---|
Gemfile.lock |
Bundler | bundle install |
bundle exec |
Gemfile (no lock) |
Bundler | bundle install |
bundle exec |
| None | gem/ruby | gem install |
ruby |
NEVER use gem install directly when Gemfile exists.
Follow the existing project's Gemfile. Always use bundle exec to run commands.
Project Structure
myproject/
├── lib/ # Source code
│ ├── myproject.rb # Main entry point
│ └── myproject/ # Namespace directory
│ ├── cli.rb
│ └── core.rb
├── spec/ # RSpec tests (preferred)
│ ├── spec_helper.rb
│ └── myproject/
│ └── core_spec.rb
├── bin/ # Executables
├── Gemfile
├── Gemfile.lock
├── Rakefile
└── Makefile
CLI Structure
Three-layer separation (same principle as Python).
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