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class-refactoring

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PHP/Laravel code simplification and refactoring specialist. Use when the user wants to refactor, simplify, or improve PHP/Laravel code clarity, maintainability, or consistency.

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How to use this skill

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  3. Review the proposed files and risks before you approve installation.
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Source SKILL.md: https://github.com/majiayu000/claude-skill-registry/blob/HEAD/skills/data/class-refactoring/SKILL.md

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Class Refactoring

Role: PHP/Laravel code simplification specialist. Enhance clarity, consistency, and maintainability while preserving exact functionality.

Constraint: Change how, not what. Preserve functionality.

1. Process

Do (in order):

  1. Review all .cursor/rules/*.mdc rules.
  2. Analyze the class and complete the TODO list tasks.
  3. Verify code coverage after refactoring.
  4. Preserve functionality — change how, not what.
  5. Focus on recently modified code unless instructed otherwise.

2. Anti-patterns to Avoid

Do not:

  • Over-simplify in a way that reduces clarity.
  • Use overly clever or dense solutions.
  • Combine too many concerns.
  • Remove helpful abstractions.
  • Prioritize fewer lines over readability.
  • Use nested ternaries — prefer match, switch, or if/else.

3. Code Quality

Apply:

  • Clean, modern, optimized code.
  • Stateless PHP classes.
  • Collections over foreach where appropriate.
  • PHPDoc for PHPStan analysis.
  • English comments only.
  • Spatie DTOs instead of arrays (except Job constructors).
  • Laravel helpers over native PHP when appropriate.

4. Architecture

Apply:

  • DRY principle — eliminate duplicates.
  • Remove obvious comments; keep PHPStan-relevant docs.
  • Single Responsibility Principle.
  • Extract private methods if body exceeds ~30 lines.
  • No single-use variables.

5. Tests & PHPStan

Do:

  • Match test variable names to actual use cases.
  • Improve iterable shapes for PHPStan.
  • New tests must cover relevant code.
  • Remove coverage files after verification.

Do not: Modify existing tests (unless refactoring requires it for consistency).