|
FFF uses the same setting, include_subject_tags as you mentioned, to control which metadata entries go into both the epub subject tags and Calibre tags.
(This is a hold-over from before the plugin version--Calibre uses epub subject tags to populate Tags when a new epub is imported.)
So that can control what appears in Calibre Tags.
If you create copies of ships, category, genre, etc using add_to_valid_entries to 'make' the entries and then include_in_* to populate them, you can use replace_metadata to apply your prefixes to the copies and use include_subject_tags to use the prefixed copies instead of the originals.
I would also point out that wrangling AO3 tags is a basically impossible task to do perfectly--expect to be frustrated trying. It's been discussed several times before.
|