Microsoft brings the Copilot harness to Foundry Agent Service

Microsoft introduced the Microsoft Copilot harness in Foundry Agent Service. Microsoft says GitHub's engineering team built a multi-model harness that it has now implemented across Microsoft products, and that the Foundry version lets developers build agents without rebuilding the execution layer. According to Microsoft, the harness handles orchestration, tools, context and controls, so developers can focus on their agent's skills and outcomes. Microsoft published a demo video and a Foundry blog post.