{
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  "generated_at": "2026-09-15T23:38:12.905Z",
  "engine_build": "2026-09-15",
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  "internally_reviewed": false,
  "review_kind": null,
  "source_checked": true,
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  "reviewer_role": null,
  "last_reviewed": null,
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    "scope": [
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      "sources",
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    "note": "Domain expert review is optional under CVP (CVP-EXP-01). Absence does not block CVP Verified. See Review policy for supplemental domain assurance."
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  "internal_review": {
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  "assumptions": [
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    "Equality is pass. ratio = |ε|/MPE",
    "Not an ILAC G8 spec decision on y, not En, and not ε without a limit",
    "U, Ulab, and T are not aliases for MPE"
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    "Does not compare y to LSL/USL (use the decision-rule page)",
    "Does not divide by U (that is En) and does not report ε without a limit",
    "U, Ulab, and T are not aliases for MPE"
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    "missing ylab, xref, or MPE → MISSING_REQUIRED_INPUT",
    "MPE ≤ 0 → VALUE_MUST_BE_POSITIVE",
    "Ulab or T without MPE → MISSING_REQUIRED_INPUT"
  ],
  "sources": [
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      "title": "JCGM 200:2012 — International vocabulary of metrology (VIM)",
      "section": "4.26 maximum permissible measurement error (maximum permissible error, limit of error)",
      "url": "https://www.bipm.org/en/publications/guides/vim.html",
      "supports": "MPE is the extreme value of measurement error permitted by specifications or regulations. Pass iff |ε| ≤ MPE.",
      "kind": "standard"
    },
    {
      "title": "ISO 14253-1 — Geometrical product specifications (GPS) — Inspection by measurement of workpieces and measuring equipment",
      "section": "Decision rules vs MPE of a measuring equipment",
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        "MPE": 1
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      "expect": {
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        "error": 0.5,
        "decision": "pass"
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        "error": 0.5,
        "abs_error": 0.5,
        "ratio": 0.5,
        "decision": "pass",
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        "xref": 2
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      "tol": 1e-12
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        "MPE": 0.5
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      "kind": "property",
      "detail": "fail",
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      "actual": "fail"
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  "tier": "engine_tested",
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      "total": 9,
      "golden": 0,
      "boundary": 6,
      "property": 3
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  "evidence_core_generated_at": "2026-09-15T14:57:22.092Z",
  "rendered_at": "2026-09-15T23:38:12.905Z",
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