I think it depends on the code you need. If the AI is going to simulate human coding abilities, you are going to have the same problems as with human developers but faster: the more code you have, the bigger and more immutable your solution will become.

Even if you specified the solution in Gherkin and drawn all the diagrams, imagine the coordination effort needed for real developers.

But I think you are way better off than the rest of us because you actually have the concept in your head. I often don‘t. I start trying different solutions to see how they feel. I guess copy-writing is similar.