Preference 172. ScrollSentinel watches the end of a cursor-paged list and
asks for the next page a screen early. It asks once per cursor, keeps going
when a page lands without pushing the end off screen, and stops on a failure
until Try again (an observer re-firing on a failure is a request loop). A
failed older page now gets its own error beside the retry, instead of
replacing the list's load error.
Adapted from fabledstash's ScrollSentinel (snippet 3760).
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
