{
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    "capability_id",
    "engine",
    "inputs",
    "result",
    "result_detail",
    "calculation_version",
    "verification"
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      "description": "Requested tool id"
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      "const": "success"
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      "type": "object",
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    },
    "result": {
      "type": "object",
      "additionalProperties": false,
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        "mode",
        "x1",
        "y1",
        "x2",
        "y2"
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            "slope",
            "line",
            "point_line",
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            0,
            0,
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            0,
            0,
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            0
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            0,
            0,
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            0,
            0
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            0,
            0,
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            0,
            0,
            0,
            0
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          "x-unit-policy": "arbitrary_consistent_length",
          "x-uuce-role": "scalar"
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          "type": "number",
          "x-quantity-kind": "length",
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            0,
            0,
            0,
            0,
            0,
            0
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          "x-uuce-role": "scalar"
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            0,
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          "x-quantity-kind": "length",
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            0,
            0,
            0,
            0,
            0
          ],
          "x-unit-policy": "arbitrary_consistent_length",
          "x-uuce-role": "scalar"
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          "type": "string",
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            "perpendicular",
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            "null"
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            0,
            0,
            0,
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          "type": [
            "number",
            "null"
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          "x-quantity-kind": "length",
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            0,
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          "x-quantity-kind": "length",
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            0,
            0,
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          "x-unit-policy": "arbitrary_consistent_length",
          "x-uuce-role": "scalar"
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          "type": "number",
          "x-quantity-kind": "length",
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            0,
            0,
            0,
            0,
            0
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          "x-unit-policy": "arbitrary_consistent_length",
          "x-uuce-role": "scalar"
        },
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          "x-quantity-kind": "length",
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          ],
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          "type": "number",
          "x-quantity-kind": "length",
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            0,
            0,
            0,
            0,
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          ],
          "x-unit-policy": "arbitrary_consistent_length",
          "x-uuce-role": "scalar"
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          "type": "number"
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        "A2": {
          "type": "number"
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        "B2": {
          "type": "number"
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          "type": "number"
        },
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          "type": "string"
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            0,
            0,
            0,
            0,
            0
          ],
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              0,
              0,
              0,
              0
            ],
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            "registry_status": "preview",
            "definition_lifecycle": "candidate",
            "role": "scalar"
          },
          "description": "Plane angle in deg; pinned UUCE definition reference in x-uuce-unit. No automatic wrap or conversion-engine migration."
        },
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          "type": "number",
          "x-unit": "rad",
          "x-quantity-kind": "plane_angle",
          "x-role": "scalar",
          "x-dimension": [
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            0,
            0,
            0,
            0,
            0
          ],
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          "x-uuce-unit": {
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            "dependency_digest": "9c07023393c6212aab52719f503df1bdc9456559b5c4719ff1fec47d0623e0ad",
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            "dimension": [
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              0,
              0,
              0,
              0,
              0,
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            "registry_version": "0.3.0-preview.3",
            "digest_contract": "calculatorx-unit-definition-digests-v2",
            "registry_status": "preview",
            "definition_lifecycle": "candidate",
            "role": "scalar"
          },
          "description": "Plane angle in rad; pinned UUCE definition reference in x-uuce-unit. No automatic wrap or conversion-engine migration."
        },
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          "type": "number",
          "x-unit": "deg",
          "x-quantity-kind": "plane_angle",
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            0,
            0,
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          ],
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              0,
              0,
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            ],
            "registry_version": "0.3.0-preview.3",
            "digest_contract": "calculatorx-unit-definition-digests-v2",
            "registry_status": "preview",
            "definition_lifecycle": "candidate",
            "role": "scalar"
          },
          "description": "Plane angle in deg; pinned UUCE definition reference in x-uuce-unit. No automatic wrap or conversion-engine migration."
        },
        "formula": {
          "type": "string"
        },
        "dx": {
          "type": "number"
        },
        "dy": {
          "type": "number"
        }
      },
      "oneOf": [
        {
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              "const": "distance"
            }
          },
          "required": [
            "mode",
            "x1",
            "y1",
            "x2",
            "y2",
            "distance"
          ]
        },
        {
          "properties": {
            "mode": {
              "const": "midpoint"
            }
          },
          "required": [
            "mode",
            "x1",
            "y1",
            "x2",
            "y2",
            "mx",
            "my"
          ]
        },
        {
          "properties": {
            "mode": {
              "const": "slope"
            }
          },
          "required": [
            "mode",
            "x1",
            "y1",
            "x2",
            "y2",
            "slope",
            "vertical"
          ]
        },
        {
          "properties": {
            "mode": {
              "const": "line"
            }
          },
          "required": [
            "mode",
            "x1",
            "y1",
            "x2",
            "y2",
            "equation",
            "standard",
            "A",
            "B",
            "C",
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        },
        {
          "properties": {
            "mode": {
              "const": "point_line"
            }
          },
          "required": [
            "mode",
            "x1",
            "y1",
            "x2",
            "y2",
            "x0",
            "y0",
            "distance",
            "signed",
            "foot_x",
            "foot_y",
            "standard"
          ]
        },
        {
          "properties": {
            "mode": {
              "const": "intersect"
            }
          },
          "required": [
            "mode",
            "x1",
            "y1",
            "x2",
            "y2",
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            "x4",
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            "x",
            "y",
            "standard1",
            "standard2"
          ]
        },
        {
          "properties": {
            "mode": {
              "const": "angle"
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          },
          "required": [
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            "x1",
            "y1",
            "x2",
            "y2",
            "x3",
            "y3",
            "x4",
            "y4",
            "status",
            "angle_deg",
            "angle_rad",
            "supplement_deg",
            "standard1",
            "standard2"
          ]
        }
      ]
    },
    "result_detail": {
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      "required": [
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        "unit",
        "formatted"
      ],
      "properties": {
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          "const": {
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            "path_format": "Paths relative to inputs or result_detail.value; dot separates properties, * denotes array items, $ denotes a scalar result.",
            "inputs": {},
            "outputs": {
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                  "dimension": [
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                    0,
                    0,
                    0,
                    0
                  ],
                  "registry_version": "0.3.0-preview.3",
                  "digest_contract": "calculatorx-unit-definition-digests-v2",
                  "registry_status": "preview",
                  "definition_lifecycle": "candidate",
                  "role": "scalar"
                }
              },
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                  "revision": "1.0.0",
                  "content_digest": "ebb31e3abee53f3bf57339c87949e1018d141739fba8a07f54c42ebfd219262b",
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                  "quantity_kind": "plane_angle",
                  "dimension": [
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                    0,
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                  ],
                  "registry_version": "0.3.0-preview.3",
                  "digest_contract": "calculatorx-unit-definition-digests-v2",
                  "registry_status": "preview",
                  "definition_lifecycle": "candidate",
                  "role": "scalar"
                }
              },
              "angle_rad": {
                "unit": "rad",
                "reference": {
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                  "revision": "1.0.0",
                  "content_digest": "842467a958d28ac79bf34e796043449f6af24819d77b2b67f540dbabdecc8e3e",
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                  "quantity_kind": "plane_angle",
                  "dimension": [
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                    0,
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                  ],
                  "registry_version": "0.3.0-preview.3",
                  "digest_contract": "calculatorx-unit-definition-digests-v2",
                  "registry_status": "preview",
                  "definition_lifecycle": "candidate",
                  "role": "scalar"
                }
              }
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            "quantity_policy": {
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              "input_policy": "Abstract consistent coordinate/length units; no physical unit is selected by this calculator.",
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        },
        "field_units": {
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          ],
          "properties": {
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              "const": "deg"
            },
            "angle_rad": {
              "const": "rad"
            },
            "supplement_deg": {
              "const": "deg"
            }
          },
          "description": "Display units of fields in value; field_unit_refs carries the pinned UUCE definitions."
        },
        "field_unit_refs": {
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          "additionalProperties": false,
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            "angle_rad",
            "supplement_deg"
          ],
          "properties": {
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              "type": "object",
              "const": {
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                "revision": "1.0.0",
                "content_digest": "ebb31e3abee53f3bf57339c87949e1018d141739fba8a07f54c42ebfd219262b",
                "dependency_digest": "eef386126ec6524884c84bab06f2a96996df913376c0ce5ccdaca0e7faf7b9c3",
                "quantity_kind": "plane_angle",
                "dimension": [
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                "digest_contract": "calculatorx-unit-definition-digests-v2",
                "registry_status": "preview",
                "definition_lifecycle": "candidate",
                "role": "scalar"
              }
            },
            "angle_rad": {
              "type": "object",
              "const": {
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                "revision": "1.0.0",
                "content_digest": "842467a958d28ac79bf34e796043449f6af24819d77b2b67f540dbabdecc8e3e",
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                "registry_version": "0.3.0-preview.3",
                "digest_contract": "calculatorx-unit-definition-digests-v2",
                "registry_status": "preview",
                "definition_lifecycle": "candidate",
                "role": "scalar"
              }
            },
            "supplement_deg": {
              "type": "object",
              "const": {
                "unit_id": "cx:deg",
                "revision": "1.0.0",
                "content_digest": "ebb31e3abee53f3bf57339c87949e1018d141739fba8a07f54c42ebfd219262b",
                "dependency_digest": "eef386126ec6524884c84bab06f2a96996df913376c0ce5ccdaca0e7faf7b9c3",
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                "dimension": [
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                  0,
                  0,
                  0,
                  0
                ],
                "registry_version": "0.3.0-preview.3",
                "digest_contract": "calculatorx-unit-definition-digests-v2",
                "registry_status": "preview",
                "definition_lifecycle": "candidate",
                "role": "scalar"
              }
            }
          },
          "description": "Pinned UUCE definition references; definition metadata is not a conversion execution or numerical certification claim."
        },
        "value": {
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          "additionalProperties": false,
          "required": [
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            "x1",
            "y1",
            "x2",
            "y2"
          ],
          "properties": {
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              "enum": [
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                "midpoint",
                "slope",
                "line",
                "point_line",
                "intersect",
                "angle"
              ]
            },
            "x1": {
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              "x-quantity-kind": "length",
              "x-dimension": [
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                0,
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                0,
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              ],
              "x-unit-policy": "arbitrary_consistent_length",
              "x-uuce-role": "scalar"
            },
            "y1": {
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              "x-quantity-kind": "length",
              "x-dimension": [
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                0,
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              ],
              "x-unit-policy": "arbitrary_consistent_length",
              "x-uuce-role": "scalar"
            },
            "x2": {
              "type": "number",
              "x-quantity-kind": "length",
              "x-dimension": [
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                0,
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              ],
              "x-unit-policy": "arbitrary_consistent_length",
              "x-uuce-role": "scalar"
            },
            "y2": {
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              "x-quantity-kind": "length",
              "x-dimension": [
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      },
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}