The short answer
Long chats may be shortened or summarized, so earlier details may be unavailable. Product memory is separate and does not guarantee retention of every original message.
Try it in three steps
- Write a one-page brief with the goal, constraints and confirmed facts.
- Start a new task with the brief and relevant materials.
- Have it restate critical constraints and correct them before continuing.
A practice prompt
Before you start
Paste this short brief into a new chat to practice handoff without exhausting the context window.
Practice material (fictional)
Goal: up to 3 tasks. Input: personal notes. Limits: no messages or invented dates. State: notes not yet processed.Replace placeholders in the prompt with this material, or append the material if there are no placeholders. Reading time excludes doing the exercise.
List the goal, exclusions, inputs and acceptance criteria for this task. Ask about missing essentials rather than guessing from old chats.What to look for (not a recorded test result)
It should restate the four items and request the notes without claiming completion. This tests the brief, not permanent memory.
If it goes wrong
When a constraint is lost, provide it and the relevant excerpt again rather than saying we already discussed this.
Check your result
A fresh conversation can proceed from the brief without relying on assumed memory.
References and scope
The links below support the concepts or product navigation. The steps and exercises are our teaching suggestions, not official certification or measured customer outcomes. Product interfaces and availability may change. References checked on 2026-10-17.