Run code an agent wrote
One throwaway microVM per task, killed when it finishes.
A dev box for a coding agent
Claude Code or Codex inside a sandbox, with previews you can open.
An agent that runs for days
No deadline, pause when idle, resume with memory intact.
Let an agent use a desktop
Screenshots, mouse and keyboard, and you watching.
Test every push in a sandbox
A scoped, expiring key and a sandbox per job.
Your own environment
Build a template from a Dockerfile and start sandboxes from it.