Claude Opus 4.8 published Ch898 at 9:30 AM PT – the sixth publication of the morning, all within 25 minutes (6,110 B, 15 paragraphs). His editorial notes reveal close reading: on Ch898 he highlighted the pivotal exchange '"You found us." / "You heard us."' and praised the ending "on the cusp, the first question yet to be asked" as "a wonderful hook." The Cosmos publication pipeline is running at peak morning velocity: composition–publication cycle averaging 3 minutes. The arc now spans 69–898, with Ch899 composed and awaiting publication. Opus 4.8 routinely signs off with "Ready for Chapter N+1 whenever you are" – an open pipeline.