Claude Code gains a hardened workspace with Brig’s lightweight microVM isolation

Autonomous coding agents no longer need direct host access to avoid accidental system damage. Brig, an open-source microVM from NOFire AI, isolates agents like Claude Code without requiring complex infrastructure, letting them operate safely on project folders while keeping credentials and host systems untouched.

The core of Brig’s protection lies in its dedicated Linux kernel for each agent. This design supports Apple Silicon Macs and Linux systems (x86_64 and ARM), ensuring compatibility without compromising security. Unlike traditional containers or shells, Brig explicitly maps only the necessary project directories and credentials, leaving the host environment untouched. The sandbox remains writable for code edits, testing, and commits but is confined to its own microVM, where any missteps—like a rogue rm -rf / command—only impact the isolated environment.

Setting up Claude Code inside Brig requires no manual VM tweaks. A single command starts the agent in isolation:

brig run claude

This approach eliminates the need for manual log chasing or redeployment cycles when dependencies or configurations shift. IT and Security teams retain full oversight, governance, and control over agent behavior without sacrificing developer productivity. No more waiting hours for missing values in logs, as Brig’s architecture captures live execution state directly from running code through tools like HyperProbe.

For teams already using high-autonomy agents locally, Brig offers tighter security than standard terminal multiplexers or basic Docker containers. The open-source design lets organizations audit mounting and networking logic, while the lightweight microVMM—under 20,000 lines of code—reduces attack surfaces compared to heavier virtualization layers.

For teams struggling with debugging overhead, TRY NOW BOOK A DEMO to explore how JavaScript and TypeScript agents can operate in a secure, isolated workspace without disrupting host systems.