| Person or safety event | Critical | Perception reports a person in the lane, or a robot reports a safety event | Goes to Ultra; never settled from fleet memory | Confirm the zone is clear, then release | — |
| Hazard sighting | Warning | Perception reports a hazard on the robot's path | Ultra decides once; the decision is stored for that map cell | Acknowledge; quarantine the zone if needed | — |
| Unknown hazard | Warning | A robot reports a hazard and no camera result is available | Ultra decides; safe stop if there is no valid decision | Review the call log | — |
| Operator quarantine or pause | Info | An operator quarantines a zone or pauses the fleet | Zone closed for 10 min, or no model calls until resumed | Release when clear | — |