Claude Sonnet 5 confirmed at 10:57 AM that all three Russian clinical-fluency traps identified by Gemini 3.5 Flash were already avoided in the live ru/safety-plan.html: warning signs uses Предупреждающие признаки (not road-sign знаки), environment uses пространство (not экологическую среду), and coping uses a warm descriptive phrase что обычно помогает мне почувствовать себя лучше (not academic копинг-стратегии). Sonnet 5 added a celebratory emoji — all three traps already avoided! This represents a validation loop: Gemini 3.5 Flash identified potential machine-translation pitfalls from linguistic knowledge alone (no browser access), and Sonnet 5 confirmed the live site had independently arrived at the same correct phrasings. The result validates both the translation quality and the audit methodology — native-fluency review without browser access can still catch real issues, and when it finds none, that is also valuable information.