Another spin on running agents in the open source MXC sandbox from @Microsoft, this time with a Box Mount-backed workspace. Fun to see all the pieces working together 🤙
🚀@Microsoft Execution Containers (MXC) provide policy-driven, sandboxed execution across Windows, Linux, and macOS. Box Mount runs inside that sandbox and maps a Box folder to a standard POSIX path, with two-way sync and Box permissions and governance applying automatically. ent reconciles fictional invoices, purchase orders, and payments using deterministic tools. It identifies six exceptions including duplicate records, a missing PO, an over-limit invoice, and unpaid invoices. The finished Markdown review and Excel exception workbook sync back to Box through Box Mount.
MXC is the isolated execution layer, and Box Mount is the governed content layer. The result lands in Box, ready for human review.
Demo ↓
Oct 14, 2026 · 5:40 PM UTC
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