Problem

The Home Assistant adapter only delivers outbound messages as persistent_notification.create (sidebar). Cron job results and cross-platform messages go to the HA notification panel, which is easy to miss on mobile.

Current behavior

gateway/platforms/homeassistant.py send() ignores the chat_id parameter and always creates a sidebar notification:

url = f"{self._hass_url}/api/services/persistent_notification/create"
payload = {"title": "Hermes Agent", "message": content}

Proposed solution

Add an optional config field for the notify service:

platforms:
  homeassistant:
    enabled: true
    extra:
      notify_service: "notify.mobile_app_iphone"

In send():

• If notify_service configured → call that service
• If not → fall back to current persistent_notification.create

POST /api/services/notify/<service_name>
{"title": "Hermes Agent", "message": content}

Environment

• Hermes version: 0.13.0
• HA version: 2026.05