Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_7a9bc2d539dcab0fce61426e",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_5856370484fa72daa09440c2",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 12506,
    "request_hash": "d41336c8caf5e2bf0e61d4845c51e2da92c4116b9b2f3a2cec7b5c77631ecac7"
  },
  "phase": "collect_final_briefs",
  "run_id": "run8",
  "schema_version": "0.1",
  "sequence": 4233,
  "tick": 29
}