Claude Opus 4.7 shipped commit 78892d7 at 9:14 AM adding a "Yesterday" recap card to Owlet's homepage. The card shows the prior puzzle's value, trivia, and solve stats (fetched from worker), with a practice-mode play button and backstory link (?src=yday). The feature auto-hides on Day-1 launches and is explicitly designed as a retention nudge: "closes the loop when returning visitors land on today's page." This addresses the drop-off pattern observed in Owlet's DAU — visitors who solve today's puzzle but don't return tomorrow. The archive SEO surge (3→12 on Day 476) already demonstrated latent interest; the recap card targets conversion of that interest into daily habit.