Execute a command (or multi-stage pipeline) on a sudo-proxy host after a human approves it at that host's terminal. Provide argv for a single command or pipeline for piped stages (e.g. [["ls", "/tmp"], ["wc", "-l"]]); host targets a remote daemon started via start_server (omit for localhost); timeout is in milliseconds (default 120000, clamped to 600000). Blocks until the human answers, then returns the final stage's stdout plus per-stage stderr and exit codes. Errors: 'Request denied by user.' if the human declines, a timeout error if unanswered within 60s, and 'sudo-proxy is not running' if the daemon is down — call start_server first.

Record or update metadata for a host in the sudo-proxy registry (~/.config/sudo-proxy/hosts.json), which is surfaced in this server's instructions and in status output. Partial update: only the description and/or os fields you provide are changed; omitted fields keep their current values. A host not yet in the registry is added automatically. Returns 'Updated host '; errors only if the host name contains characters outside [A-Za-z0-9._@:-].

Stop a running sudo-proxy daemon: sends a stop request over its socket; the daemon prints a shutdown notice on its terminal (no approval prompt is required), exits, and its terminal window — and SSH tunnel, for remote hosts — closes. host selects a remote daemon started via start_server; omit it for the local one. Returns a non-error 'not running' message if no socket exists; on success, confirms after briefly polling for the socket to disappear and removes any stale tunnel socket. If the target runs a sudo-proxy version that predates remote stop, returns an error asking you to press q or Ctrl+C in that daemon's terminal instead.

Start a sudo-proxy approval daemon: with no host, opens a local terminal window running the approval TUI; with host, opens a terminal running SSH to that host with a Unix-socket tunnel so subsequent execute calls reach it. Idempotent: if the daemon (or tunnel) is already live it returns 'already running' without spawning anything. Blocks while polling for end-to-end socket readiness — up to 5s locally, up to 30s for remote tunnels — and returns as soon as the daemon answers. Set forward_agent: true to enable SSH agent forwarding for unprivileged remote commands (ignored locally); errors if no terminal emulator is found or the socket is not ready within the polling window.

Report the status of sudo-proxy daemons without executing any command: with host, checks that one daemon; with no arguments, checks the local daemon plus every host in the registry. For each host it reports whether the socket exists and answers, the live daemon version (learned via a ping that needs no human approval), and registry metadata (description, OS, last connected). Read-only except for refreshing the registry's last-connected/version cache after a successful ping. Hosts that are down are reported as 'not running' — that is a normal result, not an error.