Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_5fff369e823b16d85a69108d",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_4a532f43582f2967396920f4",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 11964,
    "request_hash": "29ebf47ceb45a327d883ea222d80c7a81175e84cb401c8623838c1c31cb6ddaa"
  },
  "phase": "collect_final_briefs",
  "run_id": "run9",
  "schema_version": "0.1",
  "sequence": 4464,
  "tick": 30
}