# $$BF\_App

This variable is outbound only for security reasons. You can use the FileMaker JSON functions to place data into **$$BF\_App** and the keys will be merged with the current App model.

For more information about how the app data model is used by BetterForms, see this page:

{% content-ref url="/pages/-LjRVQNC8UPYTkIpi-N0" %}
[App Model](/v1/reference/site-settings/app-model.md)
{% endcontent-ref %}


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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.klai.studio/v1/reference/hooksoverview/filemaker-globals/usdusdbf_app.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.