MXC manages sandboxed code execution by leveraging underlying utilities such as bubblewrap, seatbelt, and processcontainer. Unsloth, which collaborated with Microsoft on the library, integrated the OS-level sandboxing into its agent stack with less than 100 ms of overhead per tool call. The system supports processes, sessions, and micro VMs to remove the requirement for developers to maintain separate sandboxes for each operating system.
Wednesday, October 21, 2026
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Microsoft Makes MXC Sandbox GA on Windows 11 for AI Agents
AI12 days ago
The company has moved its MXC sandboxing library into general availability on Windows 11 to enable policy-driven containment of AI assistants. This transition allows a broadening ecosystem of partners to integrate a unified framework for securing agents across Windows, macOS, and Linux, moving the tool beyond its initial open-source release.
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