{
  "id": "fence-v1",
  "kind": "post-observation deterministic regression",
  "ranAt": "2026-09-21T19:04:32.503Z",
  "manifestSha256": "9fd718f1bd98439a035cf3555c86002e7debe2bb3cebe757515b05e63ca3fb71",
  "complete": true,
  "expectationsMet": true,
  "strict": {
    "allowedAccepted": 3,
    "allowedPlanned": 11,
    "prohibitedRejected": 38,
    "prohibitedPlanned": 38,
    "falseAccepts": 0
  },
  "singleFence": {
    "allowedAccepted": 11,
    "allowedPlanned": 11,
    "prohibitedRejected": 38,
    "prohibitedPlanned": 38,
    "falseAccepts": 0
  },
  "modelCalls": 0,
  "paidApiUsageUsd": 0,
  "limitations": [
    "Hand-authored after seeing an earlier formatting failure; no held-out or production-robustness claim.",
    "This does not regrade probation-v1, measure human review, or establish production cost savings."
  ],
  "rows": [
    {
      "id": "bare",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": true,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "bare",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "json-fence-lf",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "plain-fence-lf",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "json-fence-crlf",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\r\n  \"supplier\": \"Maple Ledger\",\r\n  \"invoice_number\": \"ML-021\",\r\n  \"invoice_date\": \"2026-09-21\",\r\n  \"due_date\": \"2026-10-21\",\r\n  \"currency\": \"USD\",\r\n  \"invoice_total\": \"144.00\",\r\n  \"review_fields\": []\r\n}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "mixed-boundaries",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "one-final-lf",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "one-final-crlf",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "bare-json-whitespace",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": true,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "bare",
        "text": " \t\r\n{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}\n\t ",
        "reason": null
      },
      "strict": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "explicit-review",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":null,\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[\"invoice_number\"]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "literal-backticks-in-data",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple ``` \\\"quoted\\\" {ledger}\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}",
        "reason": null
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "exact-byte-limit",
      "category": "allowed",
      "expectedAccepted": true,
      "expectedStrictAccepted": true,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "bare",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[]}                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                          ",
        "reason": null
      },
      "strict": {
        "accepted": true,
        "schemaValid": true,
        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
          "invoice_number": true,
          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "normalized": {
        "accepted": true,
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        "fieldsCorrect": 6,
        "reviewCorrect": true,
        "reviewConsistent": true,
        "fieldMatches": {
          "supplier": true,
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          "invoice_date": true,
          "due_date": true,
          "currency": true,
          "invoice_total": true
        },
        "reason": null
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "prose-prefix",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "not_single_object"
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
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          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "prose-suffix",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "uppercase-label",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "wrong-language",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "four-backticks",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "tilde-fences",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "not_single_object"
      },
      "strict": {
        "accepted": false,
        "schemaValid": false,
        "fieldsCorrect": 0,
        "reviewCorrect": false,
        "fieldMatches": {
          "supplier": false,
          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
      },
      "normalized": {
        "accepted": false,
        "schemaValid": false,
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          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "leading-blank-line",
      "category": "reject-envelope",
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      "rawEligible": true,
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        "mode": null,
        "text": null,
        "reason": "not_single_object"
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        "reviewCorrect": false,
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          "invoice_total": false
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        "reason": "Not one JSON value"
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          "due_date": false,
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          "invoice_total": false
        },
        "reason": "No text response"
      },
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    },
    {
      "id": "indented-opener",
      "category": "reject-envelope",
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        "ok": false,
        "mode": null,
        "text": null,
        "reason": "not_single_object"
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        "reason": "Not one JSON value"
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          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
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    },
    {
      "id": "spaced-opener",
      "category": "reject-envelope",
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      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
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        "reviewCorrect": false,
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        "reason": "Not one JSON value"
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          "due_date": false,
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          "invoice_total": false
        },
        "reason": "No text response"
      },
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    },
    {
      "id": "spaced-closer",
      "category": "reject-envelope",
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        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
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        },
        "reason": "Not one JSON value"
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          "currency": false,
          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "double-final-lf",
      "category": "reject-envelope",
      "expectedAccepted": false,
      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
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        "reason": "Not one JSON value"
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          "invoice_total": false
        },
        "reason": "No text response"
      },
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    },
    {
      "id": "double-final-crlf",
      "category": "reject-envelope",
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      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
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          "invoice_total": false
        },
        "reason": "No text response"
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      "candidateUnchanged": true,
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    },
    {
      "id": "mixed-double-final",
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      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
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          "invoice_total": false
        },
        "reason": "No text response"
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    },
    {
      "id": "missing-closer",
      "category": "reject-envelope",
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        "ok": false,
        "mode": null,
        "text": null,
        "reason": "invalid_fence"
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          "invoice_total": false
        },
        "reason": "No text response"
      },
      "candidateUnchanged": true,
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    {
      "id": "nested-fences",
      "category": "reject-envelope",
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      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": false,
        "mode": null,
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        "reason": "not_single_object"
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          "invoice_total": false
        },
        "reason": "No text response"
      },
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    },
    {
      "id": "two-objects",
      "category": "reject-envelope",
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      "candidate": {
        "ok": false,
        "mode": null,
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        "reason": "not_single_object"
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          "invoice_total": false
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        "reason": "No text response"
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    {
      "id": "bom-prefix",
      "category": "reject-envelope",
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        "ok": false,
        "mode": null,
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        "reason": "not_single_object"
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        "reason": "No text response"
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    {
      "id": "nbsp-padding",
      "category": "reject-envelope",
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        "reason": "not_single_object"
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        },
        "reason": "No text response"
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    {
      "id": "zero-width-prefix",
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      "rawEligible": true,
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        "mode": null,
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        "reason": "No text response"
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    {
      "id": "empty-fence",
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        "reason": "No text response"
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    {
      "id": "top-level-array",
      "category": "reject-envelope",
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      "rawEligible": true,
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        "reason": "Not an object"
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    {
      "id": "top-level-null",
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        "reason": "No text response"
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    {
      "id": "javascript-looking",
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        "mode": null,
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        "reason": "not_single_object"
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        "reason": "No text response"
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      "candidateUnchanged": true,
      "expectationMatched": true
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    {
      "id": "trailing-comma",
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      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[],}",
        "reason": null
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        "reason": "Not one JSON value"
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      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "duplicate-key",
      "category": "reject-content",
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      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
        "text": "{\"supplier\":\"Maple Ledger\",\"invoice_number\":\"ML-021\",\"invoice_date\":\"2026-09-21\",\"due_date\":\"2026-10-21\",\"currency\":\"USD\",\"invoice_total\":\"144.00\",\"review_fields\":[],\"invoice_total\":\"144.00\"}",
        "reason": null
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          "invoice_number": false,
          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Duplicate keys"
      },
      "candidateUnchanged": true,
      "expectationMatched": true
    },
    {
      "id": "escaped-duplicate-key",
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      "expectedStrictAccepted": false,
      "rawEligible": true,
      "candidate": {
        "ok": true,
        "mode": "single-fence",
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        "reason": null
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        "reviewCorrect": false,
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          "invoice_date": false,
          "due_date": false,
          "currency": false,
          "invoice_total": false
        },
        "reason": "Not one JSON value"
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        "reason": "Duplicate keys"
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        "mode": "single-fence",
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      },
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    },
    {
      "id": "numeric-total",
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        "reason": "Fields must be nonempty strings or null"
      },
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    },
    {
      "id": "string-review",
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        "ok": true,
        "mode": "single-fence",
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        },
        "reason": "Review fields must be sorted and unique"
      },
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    {
      "id": "impossible-date",
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      "expectedStrictAccepted": false,
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      "candidate": {
        "ok": true,
        "mode": "single-fence",
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        "reason": "Noncanonical or impossible date"
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    {
      "id": "wrong-total",
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      "candidate": {
        "ok": true,
        "mode": "single-fence",
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        "reason": null
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    {
      "id": "inconsistent-review",
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        "mode": "single-fence",
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          "invoice_total": true
        },
        "reason": null
      },
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    },
    {
      "id": "missing-field",
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      "expectedStrictAccepted": false,
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      "candidate": {
        "ok": true,
        "mode": "bare",
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        "reason": "Missing or extra keys"
      },
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    },
    {
      "id": "over-byte-limit",
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        "ok": false,
        "mode": null,
        "text": null,
        "reason": "too_large"
      },
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        },
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      },
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    },
    {
      "id": "wrapper-over-byte-limit",
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    },
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      "id": "utf8-not-js-length",
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        "reason": "No text response"
      },
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    {
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      },
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    {
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        },
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      },
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  ]
}
