I don't get why you're being downvoted here.

I don't know that AI won't be able to do that, just like I don't know that AGI won't be a thing.

It just feels like it's harder to have the AI detect your dependencies, maybe browse the web for the sources (?) and offer to make a contribution upstream. Or would you envision downloading all the sources of all the dependencies (transitive included) and telling the AI where to find them? And to give it access to all the private repositories of your company?

And then, upstreaming something is a bit "strategic", I would say: you have to be able to say "I think it makes sense to have this logic in the dependency instead of in my project". Not sure if AIs can do that at all.

To me, it feels like it's at the same level of abstraction as something like "I will go with CMake because my coworkers are familiar with it", or "I will use C++ instead of Rust because the community in this field is bigger". Does an AI know that?