What if the action, it is responding to, is some sort of input other than directly human entered? Presumably, if it has a cameras, microphone, etc, people would want their assistant to do tasks without direct human intervention. For example: it is fed input from the camera and mic, detects a thunderstorm and responds with some sort of action to close windows.

It's all a bit theoretical but I wouldn't call it a silly concern. It's something that'll need to be worked through, if something like this comes into existence.