Any certification, award, statistic, or third-party performance claim shown to a customer needs a primary or independent source, or explicit attribution ("the manufacturer states…") — never asserted as fact, and never trusted from an AI summary, which blends marketing with real product names. Triggers when writing customer-facing copy, marketing pages, or an assistant's knowledge base entries that assert such claims. Does not fire on internal docs citing code or history — verified-citations owns those.