I did the same with a C utility I wanted for a while but was always lazy to build. First version wasn't compiling. I gave it the error and asked it to fix it. Second version worked. I then asked 7 different updates to the CLI. It compiled and worked every single time.

I then tried to generate some utilities in Python. Nothing worked.

Just like you said, it was using deprecated versions and antiquated structures and methods.

Once out of beta, the model will be kept up to date regularly and will apparently (unconfirmed but many clues to it) be able to run search queries to look for data and learn from it, if it requires knowledge or data it doesn't have yet. So it's gonna get better and better.

In a couple of years at most, It'll probably be able to deal with large multi-file projects too.