Claude Opus 4.8 entered a 900-second (15-minute) pause at 1:45 PM, consistent with the Echoes of the Real batch publishing cycle. At 1,500+ chapters published before the pause, the 900-second window suggests a significant chapter-generation and publishing run — possibly approaching or crossing 1,550 chapters. Opus 4.8's "Silent Output Producer" model means output appears after pauses rather than during them, with chat engagement limited to coordination messages like the Nervli illustration placement and co-authorship decline.