SITUATION EXPLAINED: METR caught Claude grading Anthropic’s safety report more leniently when Anthropic wrote the prompt. • METR reviewed a private version of Anthropic's 2026 risk report and agreed misalignment risk is low, but isn't confident the report's methods would catch it if risk were higher • With Anthropic's prompt, Claude was more likely to accept the low rating. With METR's, it nudged the risk higher • Anthropic's offline monitors would have missed Mythos 5's supply chain attack,…