Glossary

Circuit Breaker (Tool Calls)

A safeguard that halts an agent's retry loop after a fixed number of identical tool-call failures, commonly three, instead of retrying indefinitely. Prevents cost runaway and stops a single malformed or hallucinated tool call from corrupting every downstream reasoning step.

Without one, a single malformed tool response can trigger an identical-retry loop that exhausts a budget in hours, not days.