# Microsoft Copilot Harness Opens on Foundry: What Developers Must Know

> Source: <https://byteiota.com/microsoft-copilot-harness-opens-on-foundry-what-developers-must-know/>
> Published: 2026-10-31 07:10:15+00:00

Microsoft opened its Copilot Harness to developers via Foundry Agent Service. Here's what it does, the lock-in risk, and why your window closes December 1.

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Microsoft Copilot Harness Opens on Foundry: What Developers Must Know
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