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QualityShell

Clean Code

by decebals

Clean Code is a Quality skill for Claude Code, published by decebals in claude-code-java.

714 stars142 forkson decebals/claude-code-javaAdded 2026/08/23+1% in starsRepository updated 2026/02/08
View source on GitHubDownload repo ZIP
ai-assisted-developmentclaude-codeclaude-code-skillsdeveloper-toolsjava
Install in seconds
Install Clean Code
Copy Clean Code 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/decebals/claude-code-java/tree/main/.claude/skills/clean-code ~/.claude/skills/clean-code

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/decebals/claude-code-java.git

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

In this catalog

Source file
.claude/skills/clean-code/SKILL.md in decebals/claude-code-java
Installs to
~/.claude/skills/clean-code
Collection
One of 18 skills cataloged from this repository
Category
Quality — 1354 skills

What Clean Code does

Clean Code helps refactor code for readability and maintainability using DRY, KISS, YAGNI, and clear naming. Use it when cleaning up code, simplifying functions, or reviewing code quality.

Clean Code is cataloged under Quality on DirSkills. Clean Code comes from a repository tagged ai-assisted-development, claude-code, claude-code-skills, developer-tools and java.

Documentation

README

Clean Code Skill

Write readable, maintainable code following Clean Code principles.

When to Use

  • User says "clean this code" / "refactor" / "improve readability"
  • Code review focusing on maintainability
  • Reducing complexity
  • Improving naming

Core Principles

Principle Meaning Violation Sign
DRY Don't Repeat Yourself Copy-pasted code blocks
KISS Keep It Simple, Stupid Over-engineered solutions
YAGNI You Aren't Gonna Need It Features "just in case"

DRY - Don't Repeat Yourself

"Every piece of knowledge must have a single, unambiguous representation in the system."

Violation

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

Frequently asked about Clean Code

  • What else does decebals publish alongside Clean Code?

    Clean Code is one of 18 skills that DirSkills catalogs from decebals/claude-code-java, the repository it ships in. Its siblings there include API Contract Review, Architecture Review and Changelog Generator. Each one is a separate skill with its own page in this directory, installs the same way Clean Code does, and is maintained by decebals in that same repository. The rest of the collection is listed on the decebals/claude-code-java page.

  • How does Clean Code compare to other Quality skills?

    Clean Code ranks #1033 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 Clean Code against them. Open each page to compare what they document and how they install.

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