feat: Add AdditionalPropertiesExtensions with ToAdditionalProperties and ToA2AMetadata methods #260
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…A2AMetadata methods Co-authored-by: SergeyMenshykh <[email protected]>
Copilot
AI
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[WIP] Move AIContentExtensions method and add ToA2AMetadata
Add AdditionalPropertiesExtensions with ToAdditionalProperties and ToA2AMetadata methods
Jan 8, 2026
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@copilot Move the new extension class to the Microsoft.Extensions.AI namespace. |
Co-authored-by: SergeyMenshykh <[email protected]>
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SergeyMenshykh
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rokonec
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Jan 8, 2026
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LGTM, but I would like to understand the motivation better.
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Motivation and Context
The MS Agent Framework A2A Agent needs to pass additional properties, represented by the
MEAI.AdditionalPropertiesDictionarytype, as A2A metadata, represented by aDictionary<string, JsonElement>, to an A2A agent via the A2A SDK. Similarly, on the way back, metadata from the A2A agent response (task or message) returned by the A2A SDK needs to be converted back to the additional properties.The A2A .NET SDK already has several extension methods to convert between MEAI and A2A entities, which can be found here: https://github.com/a2aproject/a2a-dotnet/tree/main/src/A2A/Extensions. This PR adds one more extension method and exposes another one that was previously private as a public one.