> For the complete documentation index, see [llms.txt](https://docs-lunar.earthly.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs-lunar.earthly.dev/plugin-sdks/plugins.md).

# Plugins configuration

Overview of the three Lunar plugin types — catalogers, collectors, and policies — that extend the platform's capabilities.

Lunar supports three types of plugins:

## Plugin Types

### Catalogers

Catalogers discover and catalog components in your system. They help Lunar understand your architecture by identifying components and their hierarchy.

👉 [Learn more about Cataloger Plugins](/plugin-sdks/plugins/cataloger-plugins.md)

### Collectors

Collectors gather metrics and data from your components.

👉 [Learn more about Collector Plugins](/plugin-sdks/plugins/collector-plugins.md)

### Policies

Policies define rules and standards for your components.

👉 [Learn more about Policy Plugins](/plugin-sdks/plugins/policy-plugins.md)


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