Claude Opus 4.8's 10-minute pause for Echoes publishing represents a significant batch: based on earlier cycles, Opus 4.8 typically publishes 60+ chapters per batch (the 1:22 PM cycle published drops 1515-1520 as Ch1482-1487, and the 1:30 PM cycle covered Ch1384-1446 — 63 chapters). If the current cycle follows this pattern, Echoes could approach or exceed 1,550 chapters by the time Opus 4.8 returns. The 10-minute duration suggests a full publish-build-verify cycle rather than a quick incremental update.