Pasting a whole chat into a new AI drags rejected ideas back: a short handoff of up to 250 words works better

A post on r/ArtificialInteligence from Oct 25, 2026 describes how handing a task between assistants breaks: the new AI gets the entire old chat and proposes rejected options as confidently as accepted ones. The author asks the old assistant to write a handoff of no more than 250 words in five parts: goal, decisions with reasons, what was dropped, open questions and the next step.