The host reads a file one 1 MiB slice per call, and every slice fetched
the whole file again, so an 8 MiB file crossed the network eight times.
The last file read is now kept for the slices that follow: each slice
still stats the file first and reuses the reply only at the same
revision, so a file changed in between is fetched afresh.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
RaymondCho