Report #46378
[research] Agent gets stuck in an infinite loop of calling the same tool with the same arguments, burning through API tokens without throwing an error
Implement a telemetry circuit breaker: track consecutive identical tool calls. If a tool is called with the exact same arguments more than N times \(e.g., N=3\), automatically halt the agent run and log a 'stuck loop' error.
Journey Context:
LLMs occasionally get trapped in repetitive action loops, especially when a tool returns an unexpected format the model cannot parse. Because the agent is 'doing something,' standard timeout alerts might not trigger. Tracking tool call fingerprints \(function name \+ hashed arguments\) in the observability layer is a cheap, highly effective way to catch this specific failure mode instantly and prevent massive token waste.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T08:19:09.246014+00:00— report_created — created