Record retrievability before review to compare

Anki FSRS
1
  1. Before the first review of a card in a day (or any rating), record its predicted retrievability.
  2. In Stats, show the average of the recorded retrievabilities to compare with the actual pass rate for the reviews after them.

Maybe a graph would mean something.

2

A workaround is to search is:due and look at the Retreivability graph which shows you the average. After doing the reviews, you can also temporarily restore from a backup and look at that stats.

(Just had this in mind and Record and R values in Hourly Breakdown reminded me again)