AI coding agents are great right up until they aren't. "YOLO mode" (letting the agent run commands without asking permission) is where the real productivity lives, but it's also where a single bad rm -rf or a sketchy curl | sh can ruin your afternoon (or your laptop).

Docker Sandboxes ( sbx ) solves this the Docker way: it drops the agent into an isolated microVM with its own kernel, its own Docker daemon, and a network proxy that only lets through the traffic you allow.

I spent some time putting the brand-new v0.53.0 release through its paces. Here's what I found.

Installing

On macOS it's a one-liner, and notably, Docker Desktop is not required :

brew install docker/tap/sbx

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$ sbx version sbx version v0.53.0 2c62838...

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Before running anything, sbx diagnose is a great sanity check.…