steveclarke/ruby-cli
ai/skills/ruby-cli/SKILL.md
Build and maintain Ruby CLI tools using Thor and Zeitwerk. Use when creating new Ruby CLI gems, adding commands, editing CLI code, refactoring, or enhancing existing CLI tools. Triggers on "Ruby CLI", "Thor CLI", "command-line tool in Ruby", or when working on files in a Thor/Zeitwerk CLI codebase.
$ install --global
skillsauthnpx skillsauth add steveclarke/dotfiles ruby-cliInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
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Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
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9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
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VirusTotalMulti-engine malware detection
50%
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CrowdStrikeAdvanced threat intelligence
50%
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OSV-ScannerOpen Source Vulnerability database check
50%
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OWASP Dep-Check
50%
Last scanned: Apr 13, 2026, 6:38 PM64.1s4 files scanned
SKILL.md
- name:
- ruby-cli
- description:
- Build and maintain Ruby CLI tools using Thor and Zeitwerk. Use when creating new Ruby CLI gems, adding commands, editing CLI code, refactoring, or enhancing existing CLI tools. Triggers on "Ruby CLI", "Thor CLI", "command-line tool in Ruby", or when working on files in a Thor/Zeitwerk CLI codebase.
Ruby CLI Development
Build Ruby CLI tools using Thor for commands and Zeitwerk for autoloading.
Quick Navigation
- Starting a new CLI gem from scratch? See references/bootstrap.md
- Adding commands or subcommands? See references/patterns.md
- Thor syntax reference? See references/patterns.md
- Rich terminal UI with Gum? See references/gum.md
Core Principles
- Use compact class declarations:
class GemName::Cli::Main < GemName::Cli::Base - Use
extend selfinstead ofmodule_functionfor utility modules - Keep the Base class lean - add helpers as patterns emerge
Output Styling
For basic output, use Thor's built-in say "message", :color.
For rich terminal UI (headers, tables, spinners, confirmations), use the Gum gem:
ui.header("Section Title") # branded header with border
ui.success("Done!") # green checkmark
ui.error("Failed") # red X
ui.table(rows, columns: [...]) # formatted table
ui.spin("Working...") { ... } # spinner during work
See references/gum.md for setup and full API.
Tips & Gotchas
- Add
# rubocop:disable Rails/Outputto UI modules (stdout is intentional in CLIs) - Gum requires
brew install gumon the host machine
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