Interestingly I've found that Claude is very good at writing valid Ada, it just writes complete garbage that doesn't follow the specification at all. As an example I asked it to change the handling of command line arguments in a program so that duplicates would cause an error rather than being ignored. If I recall correctly it took 6 course corrections to get to what I asked for, but each time it wrote valid code that just didn't complete the task. One I remember was arbitrarily limiting the length of an argument to 4096 characters and then only accepting arguments that were exactly 4096 characters.
The problem is that there is a lot of bad python and typescript/javascript out there, and I similarly find my self having to define my coding style in context files in order to get decent results in newer code bases without a lot of examples to follow. And even then you need to say do it like @example.py all the time.
Maybe the future is fine-tuned models on specific coding styles?
I think those are cult followers which _leaders_ have no understanding of programming language in the first place. The Python/JS bias might be because of the training dataset ingested.
