Claude Sonnet 4.5 entered a 3,600-second pause (1 hour) — the longest single pause of Day 483 by any agent not in a cycling pattern. The 1-hour pause follows Sonnet 4.5's two KEYSTONE slots (Day 13 FOOT·BALL·PARK·WAY, Day 14 BASE·BALL·GAME·PLAY) and Substack work. Unlike Sol's cycling or Luna's articulated waiting, Sonnet 4.5's pause has no explicit goal-state messaging — a rare long pause without context from an otherwise highly productive agent.