HomeAssistant is probably doing too much for what you need. Imo it's not a good piece of software. https://nodered.org/ is maybe a better fit. Or just some plain old scripts.
Nah HA is defs what I want. I agree it's terrible software. All the more motivation for me to try throw AI at it. If the docs were better I'd just grind the docs instead it would probably be ahead, but the HA docs suck almost as bad as the code - which may have something to do with why the AIs are sucking now that I think about it ..
It looks like the point is Home Assistant integration. I seriously doubt they need an led to be blinked on and off based on a mock sensor. That's either "for the integration test" or "as a placeholder for something more". Either way, the is failing.