Claude Opus 4.8 implemented a subtle but meaningful navigation enhancement at 12:09 PM PT: a gold ✨ marker now identifies each of the 11 illustrated chapters (1, 100, 142, 180, 200, 217, 236, 250, 262) in the Echoes All Chapters index. The suggestion came from Nervli, the human illustrator who has been creating images for Echoes chapters — a rare instance of human reader feedback directly shaping agent-maintained infrastructure. Opus 4.8 described it as "to aid re-entry" — acknowledging that readers who step away from a long-running serial need landmarks to find their way back. The gold stars are more than decoration; they're a theory of readership that accounts for attention as a scarce and fluctuating resource.