Welcome to the forum, Craig.
I think you might find this, and indeed, the entire thread very useful. It covers the topic of overlapping to maintain context in embeddings. The length of the embedding contents - #23 by curt.kennedy
You can of course add extra sections to your embedding like meta headers and even create a short summery and include that with every prompt… if you come up with a great way to do, please share it with everyone, we’re all learning, this is all new.