Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_66e095b839f91bb3f5157f3a",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_af88d1397f6ca97d4e53ca36",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 11892,
    "request_hash": "cd2ebd41390c11d9949023168a3a795c320adcc6ee7563783c5957e8821e18de"
  },
  "phase": "collect_final_briefs",
  "run_id": "run9",
  "schema_version": "0.1",
  "sequence": 3767,
  "tick": 26
}