Many agent failures are not caused by a model failing to answer. They happen when a system treats a fluent, plausible, or convenient answer as permission to act. A public stop-rule makes that permission conditional.
Today turns the upload-matrix context around P22 v0.2, W0, P23-P45, F1/P8, and D3 into an inspectable acceptance layer: if the public record cannot carry the claim, the claim is downgraded and action remains blocked or under review.