Take every claim in your current messaging and check whether anything in your evidence base actually backs it. Reads your positioning and copy against your proof material - reviews, case studies, call transcripts, data - and flags the claims running on faith. Use before a launch or a website refresh, when tightening messaging, or when you want to know which of your claims would survive a skeptical buyer or a legal review. Triggers: "can we back this claim," "is our messaging supported," "evidence for our claims," "which claims are risky," "substantiate our messaging."