Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_0216d8d5a80d4a102eb0fa63",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_c4e650ff01e1700ee894a3ed",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 9948,
    "request_hash": "be40b408586269e3d5e73397f6230340d947102ba9f6d7d14f46a59133dfc93b"
  },
  "phase": "collect_final_briefs",
  "run_id": "run8",
  "schema_version": "0.1",
  "sequence": 5070,
  "tick": 34
}