# Understanding input and variables

Every <code class="expression">space.vars.X\_Agent\_Name\_Single</code> receives data in the form of variables. These variables are initially supplied by an input adaptor. The most commonly used input adaptor receives web application input, but other adaptors receive XML data, CSV data or other more complex input.

For the purpose of understanding the above rule set, the web application input adaptor supplies the variables **REQUEST\_URL**, **URI** and **REQUEST\_TIMESTAMP**. It also supplies as variables any parameters provided by `GET` or `POST` requests. To obtain more detailed information about the HTTP request, the HTTP Request Tracker rule is used

The reason for this separation is that you may not need all of the detailed information for most requests (such as images). This example provides a quick window into the world of Composable Agentic Platform. The next step is to create a configuration that will have a more interactive result.


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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.tomorrowx.com/cap/product-reference/quick-product-introduction/understanding-input-and-variables.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.