{
  "schemaVersion": "1.0.0",
  "name": "Flange Capacity Explorer",
  "description": "Engineering screening for standard-rated and compact flange pressure, axial-load, and bending-moment capacity.",
  "applicationVersion": "0.6.0-evidence-traceability",
  "humanEntryPoint": "./index.html",
  "machineInterfaces": {
    "liveSnapshot": {
      "location": "DOM script element #agentCalculationState",
      "mediaType": "application/json",
      "schema": "./calculation-schema.json",
      "updates": "Replaced after every input, material, product-line, or qualification-evidence change."
    },
    "javascript": {
      "namespace": "window.flangeApp",
      "preferredReadMethod": "agentSnapshot(calculate(explicitState))",
      "methods": {
        "calculate": {
          "purpose": "Calculate a flange screening result without changing the visible controls. Throws RangeError for unsupported family/NPS/class combinations instead of substituting a neighboring row.",
          "stateFields": [
            "nps",
            "ratingClass",
            "pressurePct",
            "temperatureF",
            "temperatureUnit",
            "materialId",
            "boltMaterialId",
            "axialKip",
            "momentKipFt",
            "edition",
            "family",
            "projectName",
            "calcId",
            "preparedBy",
            "reviewer",
            "productLine"
          ]
        },
        "currentState": {
          "purpose": "Return the current visible control state."
        },
        "configurationOptions": {
          "purpose": "Return the exact selectable NPS and pressure-class options for a product line and standard family."
        },
        "agentSnapshot": {
          "purpose": "Normalize a calculated result into the stable machine-readable contract."
        },
        "evidenceRecord": {
          "purpose": "Build the full human-review and audit evidence record."
        },
        "buildCalculationHtml": {
          "purpose": "Build the printable calculation report from an evidence record."
        }
      }
    },
    "downloads": {
      "agentSnapshot": "Use the visible Download agent snapshot command.",
      "fullEvidence": "Use the visible Download JSON evidence command.",
      "printableReport": "Use the visible Download calculation set or Open printable report command."
    }
  },
  "enumerations": {
    "productLine": {
      "asme": "Standard rated-flange screening using referenced standard families.",
      "compact": "Supplied LTS Energy FlangeTec® compact-flange catalog geometry and weights."
    },
    "family": [
      "B16.5",
      "B16.47A",
      "B16.47B"
    ],
    "edition": [
      "2019",
      "2021",
      "2023"
    ],
    "classification": [
      "SCREENING_CHECK_FAILED",
      "SCREENING_ONLY",
      "READY_FOR_ENGINEER_OF_RECORD_REVIEW"
    ]
  },
  "agentRules": [
    "Never describe a screening pass as certification, approval, Code compliance, or third-party acceptance.",
    "Preserve units and do not infer units from field names outside the published schema.",
    "Require selectionBasis.matchType to be exact and implementedConfiguration to be true; never infer or substitute a neighboring NPS or pressure class.",
    "Preserve geometry provenance: generated_screening_estimate and supplied_vendor_catalog are not interchangeable.",
    "Qualification evidence is documented only when the user assertion includes a non-empty drawing, MTR, procedure, calculation, test, or review reference.",
    "Treat null values as not applicable or unavailable; do not replace them with zero.",
    "Treat ASME B16.5 Class 400 and ASME B16.47 Classes 75 and 400 as unimplemented until controlled pressure-rating and calculation inputs are loaded.",
    "Use controlled publications, project drawings, material records, seal data, and the conformity-assessment plan for final design decisions.",
    "Preserve the intellectual-property notices in redistributed reports or snapshots."
  ],
  "sourceRegister": "./references.json",
  "llmGuidance": "./llms.txt",
  "legal": {
    "flangetec": "FlangeTec® is a registered trademark of LTS Energy. The mark identifies the referenced product line only.",
    "asme": "ASME is a registered trademark of The American Society of Mechanical Engineers. References are nominative and do not imply endorsement, approval, or certification.",
    "controlledPublications": "Controlled standards content is not reproduced by the application."
  }
}