I know the request will require modifying the book as it is downloaded, and not sure this is possible or even feasible.
I would like the download epub or kindle to have the current score added to the info page.
it could even be the last monthly ending score so it doesn't have to update at download.
if that is not possible. maybe put it in the filename and then I could script the metadata/document insert.
BTW.
using AI to generate a python script. I was able to take the filename ending in -Score6.45.epub
to take that score and put it into the info.xhtml in an epub document between status and size.
so at lease if we can do the filename that would work for me.
I'm not sure it's a good idea. A change in score would mean a file revision which is absolutely not warranted.
Just save and parse the more info page along the epub.
They match on the moreinfo.php?id=nnn included in the dc:identifier WLPC-SOL-nnn-unixtimestamp
From there you can do your modifications.
But if you want to make this usefull (can be filtered) also add it as metadata in content.opf calibre support:
meta name="calibre:rating" content="9.8"