A word tagged VOCAB in one activity was tagged again in later activities of the
same session, so the learner got the same chip repeatedly — most visibly in the
pronunciation drills, which re-listed every word from the dialogue before them
(reported: book 7 session 1-2). Rule applied: drop a VOCAB whose word was
already tagged in an EARLIER activity of that session. Repeats INSIDE one
activity are kept — those teach distinct senses ('stuck to his finger' vs
'stuck the milk in the fridge', 'shop' as verb then noun). Also dropped chips
for plurals of already-known words in book 7 session 1-2, where the drill
teaches the singular/plural pair rather than new vocabulary. No session lost
all of its vocabulary (verified).
Co-authored-by: Cursor <cursoragent@cursor.com>
Added a firm guide rule: drop a cassette activity ONLY to dissolve a
bare word-list or remove a true duplicate; keep every other. This cut
over-dropping sharply (book-4-lesson-3: 83 -> 6 dropped clips, all the
sanctioned word-list; book-1-lesson-2: 49 -> 22). Generated the Book-1
review ST images so book-1-lesson-5 can ship. All 10 masters now live.
Co-authored-by: Cursor <cursoragent@cursor.com>
Auto-assembled from the gold per-figure ST+LLA modules via assemble-master.mjs.
Book 1 L3-L4 and Book 4 L3-L4 are pending image generation; existing hand-built
Book 4 Lesson 1 left unchanged.
