Microsoft's Agent Framework now ships a supported runtime. Build 2026 brought the Agent Harness, the GitHub Copilot and Claude Agent SDK connectors, and the orchestration patterns to stable release; the harness and Foundry Hosted Agents have since reached GA. The shift is from an SDK for building agents to a governed platform for running them. By Steef-Jan Wiggers
Strategic AI Brief
Impact Analysis
Microsoft's Agent Framework now ships a supported runtime.
Market Signal
Build 2026 brought the Agent Harness, the GitHub Copilot and Claude Agent SDK connectors, and the orchestration patterns to stable release; the harness and Foundry Hosted Agents have since reached GA.
Tactical Warning
The shift is from an SDK for building agents to a governed platform for running them. By Steef-Jan Wiggers.