# Useful Components

This section covers useful components for working with [EQS](https://renownedgames.gitbook.io/ai-tree/environment-query-system).

{% content-ref url="useful-components/eqs-tester" %}
[eqs-tester](https://renownedgames.gitbook.io/ai-tree/environment-query-system/useful-components/eqs-tester)
{% endcontent-ref %}