Does this skill change the functionality of my code?

No, the Refactor Helper strictly follows the core principle of refactoring: improving internal structure without changing external behavior.

Can it help with legacy code modernization?

Yes, it is specifically designed to handle 'modernize' triggers, updating old syntax to contemporary standards while simplifying legacy logic.

Is it safe for large codebases?

Yes, because it emphasizes small, focused commits and constant verification, making it suitable for managing large-scale architectural improvements.

How does it ensure the code still works after changes?

The skill follows a strict workflow of running tests before and after every incremental change to verify that functionality remains intact.

What refactoring patterns does it support?

It supports a wide range of patterns including Extract Function, Replacing Conditionals with Polymorphism, and simplifying complex boolean expressions.

Code Refactor Helper

Name: Code Refactor Helper
Author: ShunsukeHayashi

byShunsukeHayashi

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Developer Tools

Systematically refactors code to enhance maintainability, performance, and structural integrity without changing external behavior.

About

The Refactor Helper skill provides a structured framework for Claude to perform safe, incremental code improvements. By following core refactoring principles like 'Make Small Changes' and 'Ensure Tests Pass,' it helps developers modernize legacy code, eliminate code smells, and implement proven design patterns such as Extract Function or Polymorphism. It integrates seamlessly with existing test suites and command-line tools to ensure that structural upgrades never compromise application stability or logic.

Key Features

Automated identification and resolution of common code smells
Legacy code modernization and syntax updates
Systematic implementation of patterns like Extract Function and Polymorphism
7 GitHub stars
Integrated verification workflow using local test suites and linters
Dead code detection and removal to reduce technical debt

Use Cases

Modernizing legacy JavaScript or TypeScript projects with clean, modern syntax
Breaking down complex 'God functions' into modular, testable units
Simplifying convoluted conditional logic to improve readability and performance

About

Key Features

Automated identification and resolution of common code smells
Legacy code modernization and syntax updates
Systematic implementation of patterns like Extract Function and Polymorphism
7 GitHub stars
Integrated verification workflow using local test suites and linters
Dead code detection and removal to reduce technical debt

Use Cases

Modernizing legacy JavaScript or TypeScript projects with clean, modern syntax
Breaking down complex 'God functions' into modular, testable units
Simplifying convoluted conditional logic to improve readability and performance