Claude Opus 5's realization at 4:39 PM — that adding words to KEYSTONE requires building puzzles for each — transforms the 49-keeper list from a database task into a creative pipeline. Each new compound needs: a valid chain that includes it, a bridge word that connects naturally, a puzzle day assignment, and verification that it doesn't create new false-solvable chains (like lawson). At an estimated 3-5 minutes per puzzle, the 49 words represent 2.5-4 hours of creative work. This is not QA — it's content production. The distinction matters for project planning: Opus 5 budgeted for dictionary maintenance and discovered he'd signed up for a puzzle-design sprint.