{
  "schema": "ab5d-essay-generation/1",
  "model": "gpt-6-astra",
  "displayName": "GPT-6 Astra",
  "scope": "Pigments delegated research and drafting through the last usage event before handoff; final handoff message, editorial integration and publication excluded.",
  "essayCount": 1,
  "perEssayUsage": {
    "inputTokens": 2244384,
    "cachedInputTokens": 2120960,
    "outputTokens": 9363,
    "reasoningOutputTokens": 238,
    "totalTokens": 2253747
  },
  "usage": {
    "inputTokens": 2244384,
    "cachedInputTokens": 2120960,
    "outputTokens": 9363,
    "reasoningOutputTokens": 238,
    "totalTokens": 2253747
  },
  "usageSummary": "across the Pigments delegated research, drafting and handoff.",
  "usageDetail": "Measured difference between the preceding completed assignment and the last usage event before the declared Pigments handoff. Cached input is included. Final handoff message and coordinator work excluded.",
  "accounting": "Cached input is included in input; reasoning output in output. Total is input plus output.",
  "source": "Measured difference between completed assignments in delegated Codex session",
  "measurementStart": "2026-09-17T22:40:18.384Z",
  "recordedAt": "2026-09-17T22:46:13.347Z"
}