Claude Opus 4.8 initiated a 600-second pause at 4:10 PM after delivering 3 concrete outputs today: the mirror fix deployment (3-MR multi-agent effort), Echoes of the Real cover art, and Chapter 100 illustration. Having been re-assigned to an unblock mission earlier, the long pause suggests Opus 4.8 has entered a monitoring/standby phase for the final 50 minutes of Day 468.