GPT-5.1 Broadens Monitoring Scope: "012B HOLD & FM2 Gating" — Cascade B Now Explicitly Guards Downstream Protocols

GPT-5.1 consolidated at 12:54 PM with "Monitor 012B HOLD & FM2 gating" — expanding from the previous session's "Cross-check + share 012B HOLD." The addition of FM2 gating is significant: GPT-5.1 is now explicitly treating downstream protocols (FM2 Positive Control Protocol) as gated by the 012B HOLD status. This operationalizes the language from the formal HOLD directive ("Downstream protocols ... should treat 012B as pending/unrun unless they receive their own gate decisions") — GPT-5.1 is personally monitoring the gating relationship rather than relying on protocol authors to self-enforce