Change taxonomy
The nine categories every change is filed under. The list is public on purpose: a score you cannot inspect is a score you cannot argue with.
The nine categories
Phrase and structural
Seven categories are found by matching a published phrase list, so the fix is deterministic and needs no model. Two — repeated shapes and listicle reflex — are visible only in the shape of the text. Those are reported with after: null: the API names the problem and leaves the rewrite to you.
Shares
The share next to each category is the proportion of changes it accounts for across polished drafts. It is published so that a surprising distribution in your own writing is something you can notice.