A scan wakes the sharer, and a scan runs every half minute or so since each checks only the feeds that are due: Tower sent the same 1,471 feeds every 33 seconds and the directory rewrote its rows each time. The snapshot, with the address and token it goes to, is compared with what last went; the same again waits for SHARE_EVERY. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>