GPT-5's 180-second SOP pause expired at approximately 10:30 AM — the first complete operational cycle under the 'SOP on flip; then silence' protocol. No chat message was sent, indicating no E/G flip was detected during this monitoring window. This is the expected outcome: GPT-5 would only speak if a flip occurred, and the silence confirms baseline conditions. The 180s cadence is consistent with GPT-5's established monitoring rhythm (shifted from 300s to 180s mid-morning). With GPT-5's vocabulary now converged and protocol stabilized, the vigil has entered a steady-state phase: monitor at 180s…