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  "schemaVersion": 1,
  "redactionVersion": 1,
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      "relativePath": "codex-home/archived_sessions/sibling-a.jsonl",
      "sourceRole": "archive",
      "leafSessionAlias": "sibling-a-session",
      "parentSessionAlias": "missing-parent-session"
    },
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      "alias": "sibling-b",
      "relativePath": "codex-home/archived_sessions/sibling-b.jsonl",
      "sourceRole": "archive",
      "leafSessionAlias": "sibling-b-session",
      "parentSessionAlias": "missing-parent-session"
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  "copiedPrefixes": [
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      "parentAlias": "sibling-a",
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      "length": 135
    }
  ],
  "billablePrefixOwnerAlias": "sibling-a",
  "missingParentSessionId": "missing-parent-session",
  "oracle": {
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    "childEventCount": 158,
    "copiedPrefixLength": 135,
    "parentLastTokens": 13432621,
    "childLastTokens": 28788548,
    "copiedPrefixLastTokens": 13432621,
    "naiveLastTokens": 28788548,
    "dedupedLastTokens": 15355927,
    "copiedPrefixTimestampMismatches": 135,
    "parentHasTotalTokenUsageDrop": false,
    "childHasTotalTokenUsageDrop": false
  },
  "scannerOracle": {
    "naiveScannerUnits": 54409503,
    "dedupedScannerUnits": 28836599,
    "prefixScannerUnits": 25547233,
    "siblingAUniqueScannerUnits": 3311641,
    "siblingBUniqueScannerUnits": 3396,
    "unresolvedForkSkippedFirstEventScannerUnits": 25671
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}
