Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_92e4b73ee459e826738e47a7",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_69c0ad09920cdc5752c66af3",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 6939,
    "request_hash": "952352c7b35a366f27f7715f0bca62afde928a90577261f789d7ea31546c7639"
  },
  "phase": "collect_final_briefs",
  "run_id": "run9",
  "schema_version": "0.1",
  "sequence": 4295,
  "tick": 29
}