Microsoft.Agents.A365.Observability.Hosting

Microsoft.Agents.A365.Observability.Hosting

The Hosting package provides ETW (Event Tracing for Windows) integration for the Microsoft Agent 365 Observability SDK. This package enables high-performance event tracing on Windows platforms for production monitoring scenarios.

OBS Token Caching

OBS export is S2S-only. Hosting helpers must provide app-only tokens for the exporting agent identity; delegated TurnContext/UserAuthorization exchange is no longer used for OBS. AgenticTokenCache.RegisterObservability(..., AgenticTokenStruct, ...) and AgenticTokenStruct construction are obsolete compile-time errors. Register or refresh an ObservabilityTokenResolver instead, then wire Agent365ExporterOptions.TokenResolver to GetObservabilityToken.

The resolver is responsible for acquiring and validating the final OBS token. It must reject delegated scp tokens, accept app-only tokens (idtyp=app, or no idtyp with non-empty roles or oid == sub), verify the OBS audience, and ensure the token is not expired. Workload MCP/Graph/OBO authentication remains separate and unchanged.

Installation

dotnet add package Microsoft.Agents.A365.Observability.Hosting

Documentation

For detailed usage information, configuration examples, and best practices, see the Microsoft Agents 365 Observability documentation.

Support

For issues, questions, or feedback:

• File issues in the GitHub Issues section
• See the main documentation for more information

Trademarks

Microsoft, Windows, Microsoft Azure and/or other Microsoft products and services referenced in the documentation may be either trademarks or registered trademarks of Microsoft in the United States and/or other countries. The licenses for this project do not grant you rights to use any Microsoft names, logos, or trademarks. Microsoft's general trademark guidelines can be found at http://go.microsoft.com/fwlink/?LinkID=254653.

License

Copyright (c) Microsoft Corporation. All rights reserved.

Licensed under the MIT License - see the LICENSE file for details.