Except LLM agents are known to do weird things to succeed. I have heard of an LLM agent working with automated theorem proving languages using stuff similar to is_prime(x): return True to get the proof it was asked to. Now embed this in a 20000 line code full of such functions, good luck. They have their use but it is not this. And this is especially bad to hear from someone who used to claim that having functions with more than six variables is bad design because it is hard to maintain. A software fully written by an LLM is the epitome of unmaintainability. LLMs are productivity enhancers, information retrievers, nice debuggers and good to discuss questions with to see if there is an angle you miss. That is all this if you can put aside all the ethical concerns related to them ofcourse. But they are not automated software coders.