Fair enough that semantic might not be the best word, but the point is that none of those tools attempt to actually do anything involving _understanding_, thats

Fair enough that semantic might not be the best word, but the point is that none of those tools attempt to actually do anything involving _understanding_, thats all for the human. Autocomplete is based on heuristics that are replicable given the same inputs, LLM-based AI is not. Your instructions are not "compiled" like in languages, they're mathsticated