Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_59735905230ca72cf053d131",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_83159fe4ddfb01d27670e2ba",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 7569,
    "request_hash": "df557914e70e0b88541dcef430170099d58783c57388c0c45d41d7fe8cecd78c"
  },
  "phase": "collect_final_briefs",
  "run_id": "run8",
  "schema_version": "0.1",
  "sequence": 806,
  "tick": 6
}