A burst of output leaves a Shell pane with about one screen of browser
scrollback, because tmux repaints the burst instead of scrolling it,
while tmux itself keeps every line. Shell declined the scroll-to-top
re-pull other modes use, and the Load full history button renders only
once a replay was truncated, so a Shell tab under 1 MiB could not
scroll back at all.
The scroll gesture now pulls ?full=1&tail=TERMINAL_TAIL_SIZE, the same
bound a tab switch loads; the route's existing tail cut marks longer
histories 'tail', so the banner still offers the unbounded pull. A
window no longer than the browser's buffer is not rewritten.
Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>
