History after the fallback:
  human Earlier messages were removed because the summary model was unavailable.
        
        The latest user request was:
        Retry the payment.
        
        Facts preserved verbatim from the earlier conversation:
        - ORD-2207
        - customer 812
        - GW-5003
  ai    calls retry_payment
  tool  retry accepted

validation: skipped, recovery: trimmed_fallback
