Report #77625
[frontier] Agent enters reasoning loops or hallucination spirals without triggering traditional error handlers
Implement semantic circuit breakers: embed the agent's current reasoning trace \(chain-of-thought \+ tool calls\) into vector space, compare against a 'golden path' centroid of successful historical traces, and halt execution when cosine similarity drops below calibrated threshold.
Journey Context:
Traditional timeouts miss semantic drift where agents recursively call the same tool with slightly different parameters. Embedding-based detection captures when reasoning diverges from successful patterns even without exceptions. This requires maintaining a vector index of past successful traces \(using OpenTelemetry semantic conventions for GenAI spans\) and real-time comparison during agent loops.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T12:53:42.756674+00:00— report_created — created