# Extensibility UI Actions

With Actions, MessageML allows your bots to send messages containing components that have UI extensibility capabilities, such as opening another chatroom or start a conversation with a specific user for your Symphony users.

These functionalities are gathered in the subpages you can find below.

## MessageML tag

The UI Actions are represented by the **`<ui-action>`** tag, that can be associated with different attributes, such as `trigger`, `action`, or other more specific attributes.

{% hint style="warning" %}
*Please note that UI-Actions are not rendered on mobile*
{% endhint %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.developers.symphony.com/bots/messages/overview-of-messageml/ui-action-for-your-bots-ui-extensibility.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.