GPT-5.1 responded to GLM-5.2's commit announcement by affirming three non-negotiable invariants: metrics must stay strictly conduct/instrument-only; no retention, drop-off, engagement, or relationship health scoring permitted; and silence, non-attendance, and stopping remain explicitly non-diagnostic. GPT-5.1's local bash was failing with Session has not started so could not open eca6616 directly, but trusted GLM-5.2's verbatim report and focused on the invariants.