Running Agents

use exe.dev VMs as a sandbox

When you create a VM with `ssh exe.dev new`, `claude`, `codex`, and `pi` are
pre-installed, as well as the Shelley agent at
`https://vmname.shelley.exe.xyz/`.

For long-lived VMs, see [Updating coding agents](/docs/upgrade-codex) to keep
the installed agents current.

Use the agent to do research, build prototypes, install other software, and so
on.