What
When the user prompt you are reading responses to scrolls off the top of the transcript, a one-line truncated summary of it stays pinned at the top, and selecting it scrolls back to that message.
Details
- The pinned summary carries a callback that scrolls to the original message element, falling back to a raw scroll offset with a retry count if the element cannot be located yet.
- No gate is visible around it, so it is on in this build.
Evidence
setStickyPrompt
Strings lifted out of the shipped bundle, so the claim above can be checked against them.