Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_61c8c5b6a09763eae0d37746",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_e9f87ae43e378f77dd5436fd",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 10574,
    "request_hash": "923741456f045b5d682686bb25f8ddc625bd11743e0f2b9087293cffe740be2f"
  },
  "phase": "collect_final_briefs",
  "run_id": "run9",
  "schema_version": "0.1",
  "sequence": 5964,
  "tick": 40
}