---
url: /rules/overview.md
description: >-
  Browse all claudelint validation rules organized by category. Covers severity
  levels, auto-fixable rules, and featured rules for CLAUDE.md, Skills, MCP,
  Agents, and Plugin.
---

# Rules Reference

Browse every validation rule by category. Each rule page includes severity, examples of correct and incorrect usage, and how to fix violations.

## Featured Rules

Browse the sidebar for the complete list of rules organized by category, or see the [Validators Overview](/validators/overview) for a summary of what each category checks.

## Severity Levels

* **error** - Must be fixed. Causes non-zero exit code.
* **warning** - Should be fixed. Does not affect exit code.
* **info** - Informational suggestion.

## Auto-fixable Rules

Some rules support automatic fixing:

```bash
claudelint check-all --fix
```

## See Also

* [Validators Overview](/validators/overview) - How validators work
* [Configuration](/guide/configuration) - Customize rule severity
* [Custom Rules](/development/custom-rules) - Write your own rules
* [CLI Reference](/guide/cli-reference) - All CLI commands and flags