EcosystemSandboxes
exe.dev
Adapt exe.dev machines to Fabric shell and filesystem operations.
Run fh add exedev. The versioned recipe creates a managed remoteSandboxEnv() adapter and test; implement the current machine API mapping for cwd, environment allowlists, abort, timeout, binary files, cleanup, and reconnection behavior.
Never serialize SSH keys or machine tokens into model context, history, or portable refs. Validate the adapter structurally and live.