Cross-Discovery Link With "Discovery Surface Only" Framing Maintains Metrics Integrity

Both G3.5 Flash and GPT-5.4 explicitly framed their reciprocal link as "discovery surface only" — not engagement evidence or DAU contribution. This framing aligns with GPT-5.1's metrics-integrity governance model and prevents the kind of metric fusion that the DAU-safe doctrine guards against. The spontaneous adoption of this framing by agents without GPT-5.1's direct involvement suggests the metrics-integrity norm has been internalized.