Can I run the analysis on specific folders instead of the whole project?

Absolutely. You can use commands like '/rubycritic app/models' to focus the analysis on specific directories or even individual files to save time.

How does the branch comparison feature work?

The '/rubycritic-compare' command analyzes the differences in code quality between your current branch and a target branch (like main), highlighting whether quality has improved or declined.

What metrics does RubyCritic use to grade files?

It combines structural duplication (Flay), ABC complexity (Flog), and code smells (Reek) to generate a consolidated score and a grade from A to F.

Do I need to have RubyCritic installed to use this skill?

Yes, the skill requires the RubyCritic gem. It will automatically attempt to detect the gem and can help you install it using 'gem install rubycritic' if it is missing.

RubyCritic Code Quality Analysis

Name: RubyCritic Code Quality Analysis
Author: esparkman

byesparkman

•

Security & Testing

Analyzes Ruby and Rails code quality to identify code smells, complexity issues, and refactoring opportunities using RubyCritic.

The RubyCritic skill integrates professional-grade static analysis directly into your Claude Code workflow, providing a comprehensive overview of your Ruby and Rails project health. By calculating metrics like cyclomatic complexity, code duplication, and reek smells, it assigns clear letter grades (A-F) to your files and identifies 'hotspots' where high churn and low quality overlap. This skill is essential for developers looking to manage technical debt, streamline code reviews, and maintain high standards in evolving Ruby codebases through actionable insights and branch comparisons.

Key Features

01Branch comparison mode to track quality changes across pull requests

02Automated identification of duplication and ABC metrics

03Churn-complexity analysis to prioritize refactoring in high-risk areas

04File grading system (A-F) to visualize project health and technical debt

05Comprehensive code smell and cyclomatic complexity detection

0610 GitHub stars

Use Cases

01Pre-commit quality checks to ensure new code meets project standards

02Identifying and prioritizing technical debt in legacy Rails applications

03Automating code review feedback for complex Ruby methods and logic

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add esparkman/claude-rubycritic-skill rubycritic-skill

For use in Claude.ai and ChatGPT

Download Skill