If all you're doing is something that already exists but you decided to architecture it in a novel way (for no tangible benefit), then I'd say starting from scratch and make it look more like existing stuff is going to help AI be more productive for you. Otherwise you're on your own unless you can give AI a really good description of what you are doing, how things are tied together etc. And even then it will probably end up going down the wrong path more often than not.