Messages between Snips and Home Assistant are passed via MQTT. By default, Snips and Home Assistant runs on their own MQTT broker.
We can either point Snips to the MQTT broker used by Home Assistant: In this case, we need to specify this in the /etc/snips.toml configuration file.
Or you can change Home assistant to use the MQTT broker used by Snips (https://www.home-assistant.io/components/snips/).
To create action for Home Assistant please use this article Home Assistant Actions