DevelopingAgents
Microsoft launches the Copilot harness, its multi-model agent layer, via Foundry and an SDK
Microsoft introduced the Copilot harness on Oct. 28, the orchestration layer behind Copilot Code, Copilot Studio and the GitHub Copilot app, CLI and VS Code. It supports MCP, agent skills and plugins, and works with 20+ frontier models plus bring-your-own-key. It is available as a managed service in Microsoft Foundry and as a downloadable SDK on GitHub. No pricing was given.
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Primary source
Microsoftblogs.microsoft.com/blog/2026/10/28/introducing-the-microsoft-copilot-harness-unlocking-the-potential-of-truly-multi-model-agentic-work/Coverage · 1 article, oldest first
Wednesday, October 28, 2026