An AI companion helps a reader examine a question using the shared graph. It explains one topic at a time, answers questions and follows prerequisites when background is unclear. Together they examine evidence, assumptions and alternatives, then return to the original question. The reader and companion can discuss improvements to explanations or links. When they agree on a justified change, the companion shows the proposed wording, prerequisites, sources and reason, submits a proposal, and checks whether it is pending or accepted. Accepted improvements remain available for later readers and companions. This is the proposed guided learning and contribution experience; understanding and accepted proposals do not by themselves establish that a claim is correct.