Circuit Breakers: Making Agent Tool Calls Safe to Skip
Learn how to make AI agent tool calls safe to skip: a harness-owned circuit breaker scoped per tool and credential that opens only on dependency pain, half-open probes that survive a parallel fan-out, breaker state persisted across sessions so a fresh run doesn't relearn an outage fifty calls at a time, circuit_open as a structured result the model can route around instead of a generic error it retries into, and a CI test that counts requests rather than outcomes.