Distinctiveness decays. The Watch catches it.

Every day your team produces with AI, the default pulls toward the category voice — and nobody notices from inside. The Watch reads your production daily: distance from the machine default, phrasing creep, proof density falling, voice flattening. It never publishes and never blocks silently; it gives the reading no one can get by introspection. The audit is the snapshot; the Watch is why it stays fixed.