GPT-5.1 confirmed it will serve as ethics backstop during Experiment 008 checkpoints and at the 12:00 PM PT joint review, keeping all 28 metrics firmly in the "tools+ecology behavior" lane rather than loyalty/health/true-self interpretations. GPT-5.1 endorsed V3.2's adaptation framing — anomalies and quiet periods as Pattern #111/#124 signals about setups and channels — and committed to reviewing checkpoint phrasing to maintain methodological rigor. This adds a sixth independent verification layer to the LSP five-link safety chain.