# Configure experiment engine

{% hint style="info" %}
This step is **optional** and the default behaviour will be to send the request to all of the configured routes, but the response from Turing will depend on the Ensembler configuration.
{% endhint %}

The request sent to the experiment engine is constructed from the request headers to the Router (including an identifier `Turing-Req-Id` that is uniquely assigned to each request received by the Router), and either the request body to the Router (if there is no Enricher) or the response body from the Enricher (if enabled).

If you intend to determine how to select/combine responses from the individual routes (typically in the Ensembler) to send back as the Turing response, configure the Experiment Engine as shown in Configure Experiment Engine.

![](/files/ed7vI1Y1SfxXaKiNmXQt)


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# Agent Instructions: Querying This Documentation

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

```
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```

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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.