skill-code-qualitylisted

# Skill: Code Quality Standards & Metrics ## Overview Code quality is the cornerstone of maintainable, secure, and performant software. This skill provides a comprehensive framework for enforcing quality across five dimensions: static analysis, testing, architecture, security, and CI/CD automation. ## 1. Static Code Quality & Standards ### Linting & Style Enforcement **What**: Enforce language-specific style guides with automated tools - **JavaScript/TypeScript**: ESLint + Prettier - **Python**: Pylint + Black + isort - **Go**: golangci-lint + gofmt - **Java**: Checkstyle + Spotless **Why**: Consistent code style reduces cognitive load, prevents merge conflicts, and catches common mistakes early. **How to Enforce**: ```yaml # .eslintrc.js or similar extends: ['recommended', 'prettier'] rules: no-console: warn no-unused-vars: error max-lines: [warn, { max: 300 }] ``` Configure pre-commit hook: ```bash husky install npx husky add .husky/pre-commit "npm run lint:fix" ``` ### Naming Conventions **Standard Patterns**: - **Variables/functions**: camelCase (JavaScript, Python, Java) - **Classes**: PascalCase - **Constants**: SCREAMING_SNAKE_CASE - **Files**: lowercase with hyphens (components) or snake_case (modules) - **Avoid**: Single-letter vars (except loop counters), cryptic abbreviations, `data`, `temp`, `info`, `obj` **Example Violations**: ```javascript // ❌ Bad const d = new Date(); const temp = calculateTotal(items); function x() { return 42; } // ✓ Good