So it would be something like:
Rewrite this Python code to use match/case instead of if/elif/else chains, write a script using the ast module to rewrite the code, do not edit it yourself, also write some tests with clear inputs and outputs I can inspect.
Or something.
Is this a real example of something people use AI to do? If so, I don't understand why that's difficult, because prompting the AI to do stuff with ASTs etc. seems a bit over the top.
Are people actually using AI to do programmatic refactors over million line codebases directly? That is far more insane.
Using AI to write ruff rules or clang-tidy rules with fixes is literally the same thing and obviously best practice over running AI in a pre-commit hook to do those checks and refactors...