elif subcommand == "vad":
    self._enable_voice_vad()

---

def _enable_voice_vad(self):
    """Enable hands-free VAD (Voice Activity Detection) mode.

    Enables voice mode, sets continuous recording, and immediately
    starts listening — no push-to-talk key required. Recording
    auto-stops on silence and auto-restarts after each agent response.
    """
    if self._voice_mode:
        if self._voice_continuous and self._voice_recording:
            _cprint(f"{_DIM}VAD mode is already active.{_RST}")
            return
        # Already in voice mode (push-to-talk) — switch to VAD
        with self._voice_lock:
            self._voice_continuous = True
    else:
        # Enable voice mode first (checks requirements)
        self._enable_voice_mode()
        if not self._voice_mode:
            return  # requirements not met
        with self._voice_lock:
            self._voice_continuous = True

    _cprint(f"\n{_ACCENT}🎤 VAD mode enabled — listening...{_RST}")
    _cprint(f"  {_DIM}Speak to start recording. Auto-stops on {self._get_silence_duration()}s silence.{_RST}")
    _cprint(f"  {_DIM}/voice off to disable{_RST}")

    def _start_vad():
        try:
            self._voice_start_recording()
            if hasattr(self, '_app') and self._app:
                self._app.invalidate()
        except Exception as e:
            _cprint(f"\n{_DIM}VAD recording failed: {e}{_RST}")

    threading.Thread(target=_start_vad, daemon=True).start()

---

def _get_silence_duration(self) -> float:
    """Return the configured silence auto-stop duration in seconds."""
    try:
        from hermes_cli.config import load_config
        return float(load_config().get("voice", {}).get("silence_duration", 3.0))
    except Exception:
        return 3.0

---

- _cprint("Usage: /voice [on|off|tts|status]")
+ _cprint("Usage: /voice [on|off|tts|status|vad]")