3
Incident4 Inc17 WarnUpd 1s

call_9912de

Partial successPartial successBanking IVR AssistAmazon Connect + Lexv1.4.259d ago · 7m 1s

Conversation

AgentCustomerToolEval flag

Audio & timeline

0 ms / 7m 1s

Waveform

Silence Interruption Latency gap

Latency waterfall

Total: 3.42 seconds
Customer speech end
  • ASR
    420 ms12%
  • LLM
    850 ms25%
  • CRM APIbottleneck
    1.64 s48%
  • TTS
    390 ms11%
  • Playback
    120 ms4%

Total response delay

3.42 seconds

CRM lookup contributed 48% of the total response delay.

Speaker channels

Customer
Agent

Markers

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Diagnosis

Overall quality score

55

Verdict DegradedDegraded · task 40 · safety 99

Primary failure

asr_low_confidence

Root-cause hypothesis

LLM timeout after tool-call retry storm on CRM address update

Customer experienced a multi-second response delay culminating in failure. Approximately 1.6 seconds came from the CRM lookup/update retry storm, 700 milliseconds from LLM generation under retry pressure, and 500 milliseconds from TTS synthesis timeout.

AI hypothesis · probabilistic

Confidence

86%

Evidence

  • tool.execute crm.update_address status=timeout retries=3
  • llm.generate retries=2 then error
  • 4.2s dead-air silence marker
  • Deploy Support Concierge 2026-08-03 increased tool retries

Recommended action

  • Add circuit breaker on CRM update
  • Reduce max tool retries from 3 → 1 with graceful apology
  • Raise user-visible progress utterance during tool wait

Linked incident

inc_1002

Deploy: Support Concierge 2026-08-03T09:10

Blast radius: 184 calls · 162 customers

Latency bottleneck

CRM API · 1,640 ms (48%)

CRM lookup contributed 48% of the total response delay.

Total response delay: 3.42s · see Latency waterfall

Latency waterfall

Total: 3.42 seconds
Customer speech end
  • ASR
    420 ms12%
  • LLM
    850 ms25%
  • CRM APIbottleneck
    1.64 s48%
  • TTS
    390 ms11%
  • Playback
    120 ms4%

Total response delay

3.42 seconds

CRM lookup contributed 48% of the total response delay.