Final Brief Input Token Count

{
  "causal": false,
  "event_id": "evt_fc8b57d19a7bdfe81d88c2e7",
  "kind": "FinalBriefInputTokenCount",
  "payload": {
    "call_id": "final-brief-call_0a1e13fdcf412bce2aba2df7",
    "counter_id": "anthropic-messages-direct-v0.2",
    "input_tokens": 10743,
    "request_hash": "bd0aa797e092f0db91b9d67c23835ba46ca44be0d4e57b4f7732e36695fc56fd"
  },
  "phase": "collect_final_briefs",
  "run_id": "run8",
  "schema_version": "0.1",
  "sequence": 5992,
  "tick": 40
}