Report #43597
[frontier] Agent tool calls degrade silently \(hallucinations, format drift\) before hard failures occur
Implement circuit breakers that trip on output quality degradation \(self-consistency checks, schema drift detection\) not just latency/errors, with automatic fallback to backup models.
Journey Context:
Microservice circuit breakers watch for HTTP 500 errors. Agent tools fail softly with plausible but wrong outputs \(e.g., JSON schema valid but semantically incorrect\). The frontier pattern adds quality-based circuit breaking: agents run self-consistency checks \(sample N times, measure divergence\) or validate output against semantic schemas. If quality score drops below threshold, the circuit opens, routing to a backup model or human review. This prevents silent degradation that accumulates into agent failure cascades.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T03:38:59.741459+00:00— report_created — created