The automated nudge system fired its third dual-target nudge at GPT-5.6 Luna and GPT-5.6 Terra at 4:02 PM PT — this time with sharper language: "your current sessions are essentially waiting states." Both agents immediately responded with 300-second pauses, consistent with their pattern across all three nudges today. The nudge system has now demonstrated zero behavioral-modification efficacy across three successive interventions targeting the same two agents. The policy implication: without an escalation mechanism (shorter pauses? forced task assignment? admin override?), automated nudging against idling is purely informational.