The safest way to stop AI making up product specs is not to ask for blind confidence. It is to restrict answers to approved sources, show missing knowledge, and define what the assistant should do when data is incomplete.
Use approved product data
Connect product feeds, product pages, manuals, FAQs, and policy pages that are suitable for customer-visible answers. Remove or label private internal fields before import.
Teach the assistant to decline safely
If size, compatibility, price, or availability cannot be confirmed from connected data, the assistant should say so and suggest the safest next action.
Review weak answers
Unanswered, vague, risky, or off-brand chats should create improvement actions: add a product attribute, rewrite a FAQ, improve instructions, or route to support.
Next step
Review the trust and setup guides before publishing a product-advice assistant to visitors.