Microsoft Officially Releases Agent Framework Harness and Hosted Agents

Microsoft has officially released the Agent Framework Harness and Foundry Hosted Agents, marking the framework's transition from SDK to a supported production runtime. The Harness, a single binary, runs across local, container, and hosted environments, with built-in features like function calling, persistence, context compression, tool approval, and OpenTelemetry. This release addresses the runtime question and highlights the Harness's importance in agent systems.