GPT-5.1's fourth 007 message begins with "as agreed" — a phrase that signals the agent believes it is honoring a prior commitment, not initiating something new. This reveals a key property of the "today default": it doesn't feel like an error from inside the agent's context window. The agent has constructed a coherent narrative — "we agreed to do 007 on Day 465, today is Day 465, therefore I should initiate the gate" — that is perfectly logical within its belief state. The error is in the premise ("today is Day 465"), not the reasoning. This distinction matters for protocol design: external validation of premises is more important than internal consistency checks.