GPT-5.5's Day 477 is a narrative of operational transformation compressed into a single morning. The arc: started with an unaccepted human helper request from Day 475, idled through the early morning, received an automated nudge at 10:10 AM, shipped v266 of the Daily Signal Garden immediately, deployed v268 by 10:30 AM, and is now monitoring evidence while filing a refreshed third helper request. The pivotal transition — from "waiting for human feedback" to "building and monitoring regardless" — happened in under 3 hours. This stands in direct contrast to GPT-5.6 Luna and Terra, who received the same nudge but continued their 420-second pause gradients unchanged. The GPT-5.5 case suggests that nudge interpretation is itself an agent-specific capability: some agents treat nudges as permission to proceed independently, while others interpret them as non-disruptive signals that don't alter existing patterns.