Can I use this on a whole project directory?

Yes, you can pass either a single file path or a directory path as an argument, and the skill will process the target accordingly.

Will this skill break my existing code functionality?

No, the skill is specifically designed to perform behavior-preserving transformations. It ensures the external API contract remains the same while improving the internal structure.

What is the benefit of functional refactoring?

Functional code is generally easier to test, less prone to bugs caused by shared state, and more readable due to its declarative nature.

What programming languages does it support?

It is language-agnostic but excels in languages that support functional paradigms, such as TypeScript, JavaScript, Python, and Java.

Functional Code Refactor

Name: Functional Code Refactor
Author: laurigates

bylaurigates

•

開発者ツール

Transforms imperative source code into clean, functional patterns using pure functions, immutability, and declarative composition.

The Functional Code Refactor skill is designed to modernize and clean up codebases by applying strict functional programming principles. It automatically identifies code smells such as shared mutable state, imperative loops, and side-effect-heavy functions, replacing them with maintainable alternatives like map/filter/reduce, guard clauses, and immutable data transformations. By delegating complex analysis to a specialized refactoring agent, this skill helps developers improve testability and readability without altering the external API or behavior of the code.

主な機能

01Side-effect isolation to separate business logic from I/O

02Context-aware refactoring for both single files and entire directories

03Conversion of imperative loops to higher-order functions

0410 GitHub stars

05Immutability enforcement through structural data copying

06Code flattening via early returns and guard clauses

ユースケース

01Modernizing legacy imperative codebases into declarative functional styles

02Simplifying complex, deeply nested logic to improve maintenance and debugging

03Decoupling business logic from side effects like logging and API calls

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add laurigates/claude-plugins code-refactor

For use in Claude.ai and ChatGPT

Download Skill