The type definitions cover only the call envelope — they do not tell you a connector tool's argument names or its result encoding. Never publish a page that calls a connector tool without having observed one real request/response pair for that tool in this session; if you cannot safely observe one (for example, the connector is unauthenticated here, or calling the tool would have side effects), say that explicitly to the user at publish time — in your reply, not as a note inside the published page — instead of shipping a guessed shape. Observed response payloads are the user's real data: learn the shape from them, but never embed the observed values in the published page as sample or placeholder data.