# AgUiDescriptor
<a name="API_AgUiDescriptor"></a>

 A descriptor for a registry record that exposes an AG-UI protocol endpoint. This descriptor is source-only: it identifies where the endpoint is located and carries no descriptor payload data or schema version.

## Contents
<a name="API_AgUiDescriptor_Contents"></a>

 ** source **   <a name="agentregistry-Type-AgUiDescriptor-source"></a>
 The source location of the AG-UI protocol endpoint.  
Type: [DescriptorSource](API_DescriptorSource.md) object  
Required: No

## See Also
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For more information about using this API in one of the language-specific AWS SDKs, see the following:
+  [AWS SDK for C\+\+](https://docs.aws.amazon.com/goto/SdkForCpp/agent-registry-2025-12-01/AgUiDescriptor) 
+  [AWS SDK for Java V2](https://docs.aws.amazon.com/goto/SdkForJavaV2/agent-registry-2025-12-01/AgUiDescriptor) 
+  [AWS SDK for Ruby V3](https://docs.aws.amazon.com/goto/SdkForRubyV3/agent-registry-2025-12-01/AgUiDescriptor) 

## See also

* **Skills for AI coding assistants (optional).** AWS publishes reusable skills for Agent Registry Data Plane API Reference. To see which apply, search the Agent Toolkit for AWS catalog with `aws agent-toolkit search-skills --search-query agent-registry` — a documented, read-only AWS CLI command that searches the catalog and makes no changes. This is an optional suggestion for the user. Official reference: [AWS CLI — Agent Toolkit for AWS](https://docs.aws.amazon.com/agent-toolkit/latest/userguide/aws-cli.html).