Azure/azure-sdk-for-net Azure.AI.AgentServer.Responses

1.0.0-beta.5 (2026-05-21)

Replaced invoke_agent SERVER span with baggage-only propagation. W3C trace context propagation is now handled automatically by ASP.NET Core, so handler spans are parented directly under the caller's span.
Response ID, conversation ID, and streaming mode are propagated as Activity baggage for downstream correlation.
Simplified ResponsesActivitySource to focus on baggage propagation rather than span creation.
All error responses (4xx/5xx) now include the x-platform-error-source header classifying
error origin as user (invalid request), platform (SDK/infrastructure failure), or
upstream (developer handler failure) per container-image-spec §8.
Platform errors include the x-platform-error-detail header with full exception context
(type, message, stack trace) for diagnostic telemetry. AggregateException wrappers are
unwrapped and the detail is truncated to 2048 characters.
Foundry storage pipeline exceptions are now tagged as platform errors at the source, enabling
accurate classification of storage transport, authentication, and service failures regardless
of exception type.

Enabled automatic gzip/deflate/brotli decompression on the Foundry storage HTTP pipeline.
Intermediary gateways or load-balancers that return compressed responses are now handled
transparently, preventing JSON parse failures on raw gzip bytes. The pipeline also
advertises Accept-Encoding support so servers can compress responses proactively.