> ## Documentation Index
> Fetch the complete documentation index at: https://docs.coderabbit.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Regal

> CodeRabbit's guide to Regal.

[Regal](https://www.openpolicyagent.org/projects/regal) is a linter and language server for Rego, the language of [Open Policy Agent](http://openpolicyagent.org) (OPA).

## Files

Regal will run on files with the following extensions:

* `.rego`

## Configuration

Regal uses a YAML configuration file located at `.regal/config.yaml`.

CodeRabbit will use the default settings based on the profile selected if no configuration file is found.

## When we skip Regal

CodeRabbit will skip running Regal when:

* No Rego files are found in the pull request.
* Regal is already running in GitHub workflows.

## Profile behavior

CodeRabbit generates different Regal configurations based on the review profile:

* **Chill Mode**: Uses a focused configuration with fewer rules enabled.
* **Assertive Mode**: Uses a more comprehensive configuration with additional rules enabled.

If you provide your own config file (`.regal/config.yaml`), it will be used instead of the generated one.

## Disabled categories

Regal automatically disables the following categories:

* `style` - style-related issues
* `testing` - testing-related issues

## Links

* [Regal Configuration](https://www.openpolicyagent.org/projects/regal/configuration)