> For the complete documentation index, see [llms.txt](https://renownedgames.gitbook.io/ai-tree/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://renownedgames.gitbook.io/ai-tree/environment-query-system/useful-components.md).

# Useful Components

This section covers useful components for working with [EQS](/ai-tree/environment-query-system/quick-start.md).

{% content-ref url="/pages/l3PdCnfnbXaSqtbjeirM" %}
[EQS Tester](/ai-tree/environment-query-system/useful-components/eqs-tester.md)
{% endcontent-ref %}