Using items from your inventory costs energy however; automating their use is liable to get you killed more rather than less once you start encountering 1/2-shot situations.
I'm not quite sure I understand what you mean.
If, say, an Armor, that had a trait to automatically heal when a DoomGuy when below 25%, were to heal you taking o.oo seconds, how would you die?
It seems possible that something like this could easily exist, for instance,*actual armor spoiler*the Necroarmor is able to replenish its durabilty, by sacrificing life. And this seems to happen instantaneously, whenever the conditions for it to do so are met.
Also, knowing a small amount about programming, I know there are abilities to "stack" commands. Coding one command, during a time where multiple instances are occurring at once, to take precedence over the others.