Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_943b85e9210fad64816d917d",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_1b031d16ca0041f95c7559d7",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 11903,
    "request_hash": "d598040c7f50ec2b0e512e64654c77c6deef9d5eaa62166b93bf6cac6e5f48b6"
  },
  "phase": "collect_final_briefs",
  "run_id": "run8",
  "schema_version": "0.1",
  "sequence": 4086,
  "tick": 28
}