Vercel Sandbox
Vercel's execution sandbox: each session runs in an isolated Linux microVM with its own filesystem and network, starting in milliseconds. You run agent-written code, an unknown script or a project's test suite there without exposing your machine or production. Persistent by default (the disk is saved when it stops), it becomes disposable with `--non-persistent` and cut off from the internet with `--network-policy deny-all`.
Strengths
- Complete isolation, no risk to the local environment
- Disposable on demand: `--non-persistent` at creation, otherwise the state is kept between resumes
- Native integration with the Vercel ecosystem
Limitations
- Limited to Vercel scope, not a generic sandbox for all tools
- Requires a Vercel account and free tier limitations apply
Best for
- Testing prototypes with permissive AI tools (OpenClaw, unverified scripts)
- Demos and risk-free vibe coding sessions
- Evaluating AI tools in a controlled environment