.Net: New Feature: Agent deletion should be exposed from `Agent` like `AgentThread`

[aaronpowell]

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name: Feature request
about: Suggest an idea for this project

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When I create an instance of an agent from AzureAIAgent, BedrockAgent, etc. I like to be able to pass around the Agent abstraction so the internals aren't tightly coupled to the implementation.

While this works fine for most aspects, there's no way to delete the agent without casting back to the concrete implementation.

Ideally, this should work like the AgentThread abstraction which exposes a DeleteAsync method and delegates the implementation to the implementing type.

[markwallace-microsoft]

@westey-m Thoughts on this request?

[westey-m]

Hi @aaronpowell, thanks for raising this issue.
We are mostly targeting invocation with the agent abstractions, and we don't typically expect that folks would create once off agents that are created and deleted frequently, since this would add a lot of overhead. We may not have thought of all use cases though.

Can you provide some more details on your use case?