A kill switch is the one control that stops a rogue AI agent before it wipes your production data. The reel is a chain reaction: an agent firing actions with your production key, each call triggering more, every one destroying live data. When the damage crosses the threshold, the kill switch trips, the key is revoked, and every in-flight action dies at once. Result: 3 records lost instead of the entire database. The detail most teams miss: it has to auto-trip. If a human needs to notice first, you've already lost the race against an exponential loop. And a spend cap is not a kill switch. The cap slows the bleeding, the switch stops it. If you're shipping agents with prod access, save this and go check what revokes their keys. #ai #systemdesign #softwarearchitecture #aiagents #productionready - @krishnachaytanya