Lots of people have tried it. The problem is the sheer number of rules in a typical technical writing style guide. I continue to believe that a fine-tuned model is the way to go, and I made a lot of progress on that front, but I learned firsthand how labor-intensive feature engineering can be.

The most reliable non-fine-tuned method I have seen is to do many, many passes over the doc, instructing the LLM to focus on only one rule during each pass.