api: document learned-topic drill rule

2026-09-16 23:16:26 +00:00 · 2026-08-24 19:24:28 -04:00
parent ddf249c884
commit 3aa8d50644
1 changed files with 5 additions and 0 deletions
@@ -27,6 +27,11 @@ A problem's first-ever log enters at `+2` regardless of result. Stage names
 the NEXT review's interval. All dates are ET calendar strings anchored at
 noon UTC (`src/srs.ts`) — never raw `Date` math.

+Blind drills draw only from topics **already learned**: scheduled in an
+earlier week (the current week's optional pool is reserved for Saturday's
+gate) and with at least one core problem on the ladder — a skipped learning
+day never feeds drills just because its calendar week lapsed.
+
 ## Routes

 | Route | Auth | Purpose |