Clean Code skill: what it does and how to install it

What it does. Guides code writing, review and refactoring with Clean Code principles: intention-revealing names, small single-purpose functions and classes, clear error handling, restrained comments, readable formatting and focused unit tests. It also identifies smells such as rigidity, fragility, repetition and needless complexity.

When to use it. For new code, pull request reviews, legacy refactoring and aligning team standards. Use it only when the task clearly involves code quality, and not as a substitute for environment-specific validation or expert review.