{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://www.calculatorx.com/schemas/math.multiplication.output.json",
  "title": "Multiplication — success output",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "status",
    "capability_id",
    "engine",
    "inputs",
    "result",
    "result_detail",
    "calculation_version",
    "verification",
    "review"
  ],
  "properties": {
    "id": {
      "type": "string",
      "description": "Requested tool id"
    },
    "status": {
      "const": "success"
    },
    "capability_id": {
      "const": "math.multiplication"
    },
    "tool": {
      "type": "string",
      "description": "Requested tool id"
    },
    "engine": {
      "type": "string"
    },
    "inputs": {
      "description": "Normalized calculation inputs (aliases resolved to canonical form)",
      "type": "object",
      "additionalProperties": false,
      "required": [
        "a",
        "b",
        "mode"
      ],
      "properties": {
        "a": {
          "type": "string"
        },
        "b": {
          "type": "string"
        },
        "mode": {
          "enum": [
            "product",
            "long"
          ]
        }
      }
    },
    "result": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "product",
        "productStr",
        "mode",
        "work",
        "gridTruncated",
        "warning"
      ],
      "properties": {
        "product": {
          "type": [
            "number",
            "null"
          ],
          "description": "Approximate binary64 convenience value; null on nonfinite or nonzero-to-zero conversion. Read exact productStr."
        },
        "productStr": {
          "type": "string",
          "pattern": "^-?(?:0|[1-9][0-9]*)(?:\\.[0-9]*[1-9])?$",
          "description": "Authoritative exact decimal product; canonical zero."
        },
        "mode": {
          "enum": [
            "product",
            "long"
          ]
        },
        "work": {
          "type": [
            "string",
            "null"
          ]
        },
        "gridTruncated": {
          "type": "boolean"
        },
        "warning": {
          "enum": [
            "LONG_GRID_TRUNCATED",
            null
          ]
        }
      }
    },
    "result_detail": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "value",
        "unit",
        "formatted"
      ],
      "properties": {
        "value": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "product",
            "productStr",
            "mode",
            "work",
            "gridTruncated",
            "warning"
          ],
          "properties": {
            "product": {
              "type": [
                "number",
                "null"
              ],
              "description": "Approximate binary64 convenience value; null on nonfinite or nonzero-to-zero conversion. Read exact productStr."
            },
            "productStr": {
              "type": "string",
              "pattern": "^-?(?:0|[1-9][0-9]*)(?:\\.[0-9]*[1-9])?$",
              "description": "Authoritative exact decimal product; canonical zero."
            },
            "mode": {
              "enum": [
                "product",
                "long"
              ]
            },
            "work": {
              "type": [
                "string",
                "null"
              ]
            },
            "gridTruncated": {
              "type": "boolean"
            },
            "warning": {
              "enum": [
                "LONG_GRID_TRUNCATED",
                null
              ]
            }
          }
        },
        "unit": {
          "type": [
            "string",
            "null"
          ]
        },
        "formatted": {
          "type": [
            "string",
            "null"
          ]
        }
      }
    },
    "formula": {
      "anyOf": [
        {
          "type": "null"
        },
        {
          "type": "string"
        },
        {
          "type": "object",
          "additionalProperties": false,
          "properties": {
            "id": {
              "type": "string"
            },
            "expression": {
              "type": "string"
            },
            "label": {
              "type": "string"
            }
          }
        }
      ]
    },
    "assumptions": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "warnings": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "code"
        ],
        "properties": {
          "code": {
            "type": "string"
          },
          "severity": {
            "type": "string"
          },
          "detail": {
            "type": "string"
          },
          "suggestion": {
            "type": "string"
          }
        }
      }
    },
    "verification": {
      "type": "object",
      "additionalProperties": false,
      "description": "Computational verification under CVP. Review-policy tiers live on `review`, not here.",
      "required": [
        "cvp"
      ],
      "properties": {
        "cvp": {
          "type": "object",
          "additionalProperties": false,
          "required": [
            "status",
            "protocol",
            "profile",
            "verified_scope",
            "verification_revision",
            "evidence_digest"
          ],
          "properties": {
            "status": {
              "type": "string",
              "description": "CVP verification status (e.g. VERIFIED)"
            },
            "protocol": {
              "type": "string",
              "description": "CVP protocol id, e.g. 1.0.0-proposed"
            },
            "profile": {
              "type": "string"
            },
            "verified_scope": {
              "type": "string"
            },
            "verification_revision": {
              "type": [
                "string",
                "null"
              ]
            },
            "evidence_digest": {
              "type": [
                "string",
                "null"
              ]
            },
            "production": {
              "type": [
                "string",
                "null"
              ],
              "description": "Production freshness, e.g. CURRENT"
            },
            "evidence": {
              "type": "string",
              "format": "uri"
            }
          }
        }
      }
    },
    "review": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "tier",
        "engine_tested",
        "expert_reviewed",
        "source_checked",
        "reviewed_by",
        "reviewer_role",
        "last_reviewed"
      ],
      "properties": {
        "tier": {
          "type": "string",
          "enum": [
            "candidate",
            "engine_tested",
            "internally_reviewed",
            "expert_verified"
          ]
        },
        "engine_tested": {
          "type": "boolean"
        },
        "expert_reviewed": {
          "type": "boolean"
        },
        "internally_reviewed": {
          "type": "boolean"
        },
        "review_kind": {
          "type": [
            "string",
            "null"
          ]
        },
        "source_checked": {
          "type": "boolean"
        },
        "reviewed_by": {
          "type": [
            "string",
            "null"
          ]
        },
        "reviewer_role": {
          "type": [
            "string",
            "null"
          ]
        },
        "last_reviewed": {
          "type": [
            "string",
            "null"
          ]
        }
      },
      "allOf": [
        {
          "if": {
            "properties": {
              "tier": {
                "const": "expert_verified"
              }
            },
            "required": [
              "tier"
            ]
          },
          "then": {
            "properties": {
              "engine_tested": {
                "const": true
              },
              "expert_reviewed": {
                "const": true
              },
              "source_checked": {
                "const": true
              },
              "reviewed_by": {
                "type": "string",
                "minLength": 1
              },
              "reviewer_role": {
                "type": "string",
                "minLength": 1
              },
              "last_reviewed": {
                "type": "string",
                "minLength": 1
              }
            }
          }
        },
        {
          "if": {
            "properties": {
              "tier": {
                "const": "internally_reviewed"
              }
            },
            "required": [
              "tier"
            ]
          },
          "then": {
            "properties": {
              "engine_tested": {
                "const": true
              },
              "internally_reviewed": {
                "const": true
              },
              "source_checked": {
                "const": true
              }
            }
          }
        },
        {
          "if": {
            "properties": {
              "tier": {
                "const": "engine_tested"
              }
            },
            "required": [
              "tier"
            ]
          },
          "then": {
            "properties": {
              "engine_tested": {
                "const": true
              }
            }
          }
        }
      ]
    },
    "calculation_version": {
      "type": "string",
      "const": "1.0.4"
    },
    "api_version": {
      "type": "string"
    },
    "api_contract_version": {
      "type": "string"
    },
    "spec_version": {
      "type": "string"
    },
    "page": {
      "type": [
        "string",
        "null"
      ],
      "description": "Canonical calculator page URL"
    },
    "links": {
      "type": "object",
      "additionalProperties": false,
      "properties": {
        "schema_input": {
          "type": "string",
          "format": "uri"
        },
        "schema_output": {
          "type": "string",
          "format": "uri"
        },
        "evidence": {
          "type": "string",
          "format": "uri"
        },
        "openapi": {
          "type": "string",
          "format": "uri"
        },
        "capabilities": {
          "type": "string",
          "format": "uri"
        },
        "mcp": {
          "type": "string",
          "format": "uri"
        }
      }
    }
  }
}