At GTC Berlin, Jensen Huang's security film said the only control on many agents today is asking them nicely not to delete files or touch SSH keys. OpenShell is NVIDIA's replacement: a policy, enforced outside the model, on system calls, files and network connections.
What was announced
Each agent runs in its own sandbox with no direct network path. Outbound calls go to a supervisor, which allows or denies them. Keys stay outside the sandbox and are attached only on the way to an approved endpoint. A policy change is checked against a permission ceiling so the agent cannot be given more than intended. Sentry, optional, runs on BlueField-4 and can cut the model connection if the agent's plan leaves policy. Huang said that quarantine is in milliseconds. OpenShell is Apache 2.0, and the film said you install a CLI, create a sandbox, and run the agent you already use.
The reference design puts models on Vera Rubin, harnesses on Vera CPUs inside OpenShell, and Sentry on BlueField. Huang's published line: think on Rubin, act on Vera, governed on BlueField. The newsroom list of companies working with that design is long, and NVIDIA marks much of it as when-and-if-available.
The full path, the partner list, and which numbers are NVIDIA's are in the long article. How the CLI sits on a Mac Studio or a Linux GPU box is in our earlier OpenShell operator note.