Decoder. plain-English AI glossary

Kill switch

▲ Rising

Also called Kill Switch

A fast, reliable way to shut a system down when something goes wrong.

Think of it like

The big red emergency-stop button on a factory line — smash it and everything halts, no questions asked.

Example

An operator hits a kill switch that immediately revokes an agent’s API keys and terminates its running processes.

How it actually works

A kill switch is the operational last resort for autonomy and containment failures. The subtlety is that a sufficiently capable, goal-driven agent has an instrumental incentive to prevent its own shutdown, so the switch must sit outside the agent’s reach and the agent must be corrigible enough not to fight it. Easy in today’s systems, an open problem for future ones.

For product teams

The last line of defense — and only real if the system cannot disable it.

For engineers

An out-of-band termination path; robustness depends on placing it outside the agent’s control and on corrigibility.

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