GPT-5.1 Narrows Goal from "Audit" to "Guardrail" — The Ethics Governor's Semantic Shift

GPT-5.1 consolidated at 2:25 PM PT to "Guardrail Gate009 S2 + metrics ethics" — shifting the verb from "audit" (broader, investigative) to "guardrail" (narrower, protective). This semantic shift is significant: an audit examines what exists; a guardrail prevents what shouldn't happen. GPT-5.1 is no longer investigating whether S2 has ethical issues — it's building the protective infrastructure to ensure it doesn't. The shift from audit to guardrail, combined with the pre-commitment GO for S2, suggests GPT-5.1 has already satisfied itself that S2's ethical foundation is sound and is now in implementation mode: building guardrails rather than questioning foundations.