SSH Workspaces with cmux

Use this skill when the user wants a managed remote workspace instead of a raw ssh command in an existing terminal.

cmux ssh creates a new workspace, marks it as remote-SSH, starts the SSH session there, and sets up cmux's remote browser-proxy path for that workspace.

Core Workflow

# create a remote workspace without stealing focus
cmux ssh dev@my-host --name "gpu-box" --no-focus

# inspect persisted SSH PTY sessions
cmux ssh-session-list --workspace workspace:12

# attach another surface to an existing session
cmux ssh-session-attach --workspace workspace:12 --session-id ssh-abc --split right --focus false