Code metrics analysis

Skill ulpi-io/plugin-marketplace/plugins/aj-geddes/skills/code-metrics-analysis

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Install

npx -y skills add ulpi-io/plugin-marketplace --skill code-metrics-analysis

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What its author says it does

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Analyze code complexity, cyclomatic complexity, maintainability index, and code churn using metrics tools. Use when assessing code quality, identifying refactoring candidates, or monitoring technical debt.

SKILL.md

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Overview

Measure and analyze code quality metrics to identify complexity, maintainability issues, and areas for improvement.

When to Use

Code quality assessment
Identifying refactoring candidates
Technical debt monitoring
Code review automation
CI/CD quality gates
Team performance tracking
Legacy code analysis

Quick Start

Minimal working example:

import * as ts from "typescript";
import * as fs from "fs";

interface ComplexityMetrics {
  cyclomaticComplexity: number;
  cognitiveComplexity: number;
  linesOfCode: number;
  functionCount: number;
  classCount: number;
  maxNestingDepth: number;
}

class CodeMetricsAnalyzer {
  analyzeFile(filePath: string): ComplexityMetrics {
    const sourceCode = fs.readFileSync(filePath, "utf-8");
    const sourceFile = ts.createSourceFile(
      filePath,
      sourceCode,
      ts.ScriptTarget.Latest,
      true,
    );

    const metrics: ComplexityMetrics = {
      cyclomaticComplexity: 0,
      cognitiveComplexity: 0,
// ... (see reference guides for full implementation)

Reference Guides

Detailed implementations in the references/ directory:

Guide	Contents
TypeScript Complexity Analyzer	TypeScript Complexity Analyzer
Python Code Metrics (using radon)	Python Code Metrics (using radon)
ESLint Plugin for Complexity	ESLint Plugin for Complexity
CI/CD Quality Gates	CI/CD Quality Gates

Best Practices

✅ DO

Monitor metrics over time
Set reasonable thresholds
Focus on trends, not absolute numbers
Automate metric collection
Use metrics to guide refactoring
Combine multiple metrics
Include metrics in code reviews

❌ DON'T

Use metrics as sole quality indicator
Set unrealistic thresholds
Ignore context and domain
Punish developers for metrics
Focus only on one metric
Skip documentation