> ## Documentation Index
> Fetch the complete documentation index at: https://docs.devin.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# BrowserPreviewOpenedNotification

> The agent opened a browser preview it wants the client to display.

## Properties

**method** `"_cognition.ai/browserPreview/opened"` *required*

**previewId** `string` *required*

**previewUrl** `string` *required*

Loopback proxy URL the client should open.

**sessionId** `string` *required*

**targetUrl** `string` *required*

Normalized dev-server URL the preview fronts.


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