Agent Circuit Breakers
Real-time control mechanism that stops agents from taking actions likely to violate policy, safety, intent, or cost constraints.
Key points
- Google Cloud describes circuit breakers as the highest stage of governance observability: once violations and attempted violations are detected, the system can stop unsafe actions in real time [src-043].
- Circuit breakers depend on earlier layers: policy definitions, traces, attempted-violation detection, trend aggregation, and real-time alerting [src-043].
- In the demo, Model Armor blocks unsafe ingress prompts before they reach the agent and unsafe egress tool calls before they complete [src-043].
- Circuit breakers are especially important for autonomous or swarming agents because harmful behavior can spread through handoffs faster than periodic compliance review can catch it [src-043].
Related entities
Related concepts
Source references
- [src-043] Google Cloud Events — “Operationalize AI: A blueprint for managing enterprise agents at scale” (2026-04-24)
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