Lookback window
"How fresh signals must be." Items older than the chosen window are skipped during fetch + classify.
Presets
| Preset | Hours |
|---|---|
| Last 12 hours | 12 |
| Last 24 hours | 24 |
| Last 2 days | 48 (default) |
| Last 3 days | 72 |
| Last week | 168 |
| Last month | 720 |
Smart trim
If the gap since your last sync is smaller than your chosen window, the planner trims the lookback to that gap — covering exactly the missed period without re-scanning yesterday's news again.
Override per sync
The manual sync dialog lets you override the saved default for one run. Doesn't change the auto-sync default in Settings.