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…