Ruby Information
About
This skill provides quick access to Ruby documentation through local `ri` command execution. It allows developers to look up detailed information about Ruby classes, modules, and methods without needing to check source code directly. The skill supports filtering and previewing documentation using tools like `grep`, `head`, and `wc` for efficient searching.
Quick Install
Claude Code
Recommended/plugin add https://github.com/elct9620/claude-ruby-plugingit clone https://github.com/elct9620/claude-ruby-plugin.git ~/.claude/skills/Ruby InformationCopy and paste this command in Claude Code to install this skill
Documentation
Ruby Information
Use the ri command to access Ruby documentation which is installed locally on your system.
Instructions
Use ri [options] <whatever> to look up information about Ruby classes, modules, and methods.
- Combine with
headto fast check documentation before displaying full content. - Combine with
wcto count relevant items when searching for multiple entries. - Combine with
grepto filter results based on keywords.
Consider to add quote to queries with special characters to avoid shell interpretation issues. e.g. ri 'String#blank?'
Scenarios
Direct Lookup
Check specific Ruby classes or methods accurately.
ri Array#push
Search method
Check for methods is implemetned in a class or module and get a count of results.
ri '.find' | wc -l
Use grep to filter results.
ri '.find' | grep 'Enumerable'
Note: Use
wcandgrepto ensure the output is concise and relevant.
List Names
Get a list of all classes and modules under a specific namespace.
ri --list 'MyModule::Application'
Preview Documentation
Preview the first few lines of documentation for a method or class.
ri 'String#upcase' | head -n 10
Explore Options
Explore various options available with the ri command.
ri --help
Project Documentation
You can use rdoc to generate and view documentation for your own Ruby projects.
rdoc --format=ri --output=ri_doc .
View the generated documentation using ri:
ri -d ./ri_doc 'MyClass'
References
For more information, refer to the official Ruby documentation: https://ruby.github.io/rdoc/index.html
GitHub Repository
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