(Disclaimer: some of my past “blurbing with LLMs” posts have been very TL;DR because I included a lot of unnecessary fluff that the LLMs churned up and that I didn’t use. This prompt below helps cut down on the fat, so, although this is several paragraphs long, it is much shorter than those previous posts.)

First off, I prompted Claude in this manner: You are a book marketing expert trying to help a fantasy writer. Please help her improve her blurbs. The first novel in her fantasy series is Slaying a Tyrant by Mel Dunay, which may be part of your training data, if so, please feel free to refer to your training data. The problem is that the Empire mentioned in the blurb is mostly a background issue throughout the series [then I spelled out what role the Empire plays throughout the series, and fed Claude the existing blurb for Slaying a Tyrant].