* Python: Add long-running agents and background responses support
- Add ContinuationToken TypedDict to core types
- Add continuation_token field to ChatResponse, ChatResponseUpdate,
AgentResponse, and AgentResponseUpdate
- Add background and continuation_token options to OpenAIResponsesOptions
- Implement polling via responses.retrieve() and streaming resumption
in RawOpenAIResponsesClient
- Propagate continuation tokens through agent run() and
map_chat_to_agent_update
- Fix streaming telemetry 'Failed to detach context' error in both
ChatTelemetryLayer and AgentTelemetryLayer by avoiding
trace.use_span() context attachment for async-managed spans
- Add 14 unit tests for continuation token types and background flows
- Add background_responses sample showing polling and stream resumption
Fixes#2478
* Python: Add A2A long-running task support via ContinuationToken
- Make ContinuationToken provider-agnostic (total=False, optional task_id/context_id fields)
- Add background param to A2AAgent.run() controlling token emission
- Add poll_task() for single-request task state retrieval
- Add resubscribe support via continuation_token param on run()
- Extract _updates_from_task() and _map_a2a_stream() for cleaner code
- Streamline run()/streaming by removing intermediate _stream_updates wrapper
- Update A2A sample to show background=False (default) with link to background_responses sample
- Remove stale BareAgent from __all__
- Add 12 new A2A continuation token tests
* fix logic for overriding continuation token when done
* refactored ContinuationToken setup
* Python: Fix AI Search Tool Sample and improve AI Search Exceptions
* Python: Fix AI Search Tool Test
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Co-authored-by: Dmytro Struk <13853051+dmytrostruk@users.noreply.github.com>
Should be `Agent2Agent Protocol` not `Agent-to-Agent` unless talking about general agent to agent communication
Co-authored-by: Eric Zhu <ekzhu@users.noreply.github.com>
Eduard van ValkenburgandGitHub
Giles OdigweandGitHub
