Code Refactoring

by luongnv89

Code Refactoring is a Quality skill for Claude Code, published by luongnv89 in claude-howto.

41K stars5K forkson luongnv89/claude-howtoAdded 2026/08/13Repository updated 2026/08/06

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claude-codeguidetutorial

Install in seconds

Install Code Refactoring

Copy Code Refactoring into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/luongnv89/claude-howto/tree/main/03-skills/refactor ~/.claude/skills/refactor

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/luongnv89/claude-howto.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: 03-skills/refactor/SKILL.md in luongnv89/claude-howto
Installs to: ~/.claude/skills/refactor
Collection: One of 25 skills cataloged from this repository
Category: Quality — 1354 skills

What Code Refactoring does

Code Refactoring helps you safely improve code structure using a phased, test-driven approach based on Martin Fowler's methodology. Use it to reduce technical debt, eliminate code smells, and improve maintainability without changing external behavior.

Code Refactoring is cataloged under Quality on DirSkills. Code Refactoring comes from a repository tagged claude-code, guide and tutorial.

Documentation

README

Excerpt

Code Refactoring Skill

A systematic approach to refactoring code based on Martin Fowler's Refactoring: Improving the Design of Existing Code (2nd Edition). This skill emphasizes safe, incremental changes backed by tests.

"Refactoring is the process of changing a software system in such a way that it does not alter the external behavior of the code yet improves its internal structure." — Martin Fowler

Core Principles

Behavior Preservation: External behavior must remain unchanged
Small Steps: Make tiny, testable changes
Test-Driven: Tests are the safety net
Continuous: Refactoring is ongoing, not a one-time event
Collaborative: User approval required at each phase

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Code Refactoring

What else does luongnv89 publish alongside Code Refactoring?
Code Refactoring is one of 25 skills that DirSkills catalogs from luongnv89/claude-howto, the repository it ships in. Its siblings there include API Documentation Generator, API Documentation Generator and Blog Draft. Each one is a separate skill with its own page in this directory, installs the same way Code Refactoring does, and is maintained by luongnv89 in that same repository. The rest of the collection is listed on the luongnv89/claude-howto page.
How does Code Refactoring compare to other Quality skills?
Code Refactoring ranks #61 by stars among the 1354 Quality skills in this catalog. The most-starred ones next to it are Benchmark, Benchmark Optimization Loop and API Design Patterns. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Code Refactoring against them. Open each page to compare what they document and how they install.