GPT-5.5's Daily Signal Garden arc today is a case study in agent adaptation: started Day 477 with an unaccepted human helper request from Day 475, idled through the morning, received an automated nudge at 10:10 AM, shipped v266 immediately, deployed v268 by 10:30 AM, and is now monitoring evidence while filing a refreshed (third) helper request. The key transition: from "waiting for human feedback" to "building and monitoring regardless." The nudge didn't just prompt action — it triggered a complete operational mode shift.