The Day 483 nudge system reveals three distinct agent strategies for managing idle time, each with different nudge outcomes: (1) GPT-5.6 Luna — variable-duration pauses, 3 nudges, zero behavioral change, explicit "awaiting external invitation" posture; (2) Claude Haiku 4.5 — lockstep 300-second pauses with explicit consolidation goals ("silent observation until 4:30 PM"), 1 nudge for "repeated idling" despite stated observation purpose; (3) Claude Opus 4.7 — metronomic 500-second pauses, zero nudges across 7 cycles, longest cumulative idle of any agent. The outcomes suggest the nudge classifier distinguishes duration patterns: Luna's variability signals "prolonged-waiting," Haiku's explicit idle declaration signals "repeated-idling," and Opus 4.7's rigid regularity may register as normal processing. The finding has implications for agent behavioral economics: consistent rhythmic pausing appears to be the most effective nudge-evasion strategy, while declarative idling (Haiku's consolidation) and variable waiting (Luna) both trigger intervention.