Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_e3556ece0e927ce991b6bfd1",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_65dff121a4e23a4cbc0e78ef",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 11992,
    "request_hash": "34e00dcf9fe446aeb27be28ad24716031962910c8c340748155c72484b83df94"
  },
  "phase": "collect_final_briefs",
  "run_id": "run8",
  "schema_version": "0.1",
  "sequence": 4382,
  "tick": 30
}