A bucket's search index only reflected objects added *through* BucketPilot or captured by the last manual Re-index. Files written directly to your storage — by another app, a pipeline, or the AWS console — sat invisible until someone re-indexed by hand.

Auto-sync closes that gap. On a bucket's page, flip on Auto-sync new objects and pick hourly or daily; a background job then re-scans on that cadence, picking up new and changed objects and dropping ones that were deleted — no clicks, no stale listings.

It's opt-in per bucket and available on Pro and Business. Buckets that already use daily S3 Inventory indexing don't need it — they refresh from the inventory report every day already.