{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "Synapse Structured Extraction v1",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema_version",
    "record_id",
    "source",
    "fields",
    "unknowns",
    "decision",
    "provenance"
  ],
  "properties": {
    "schema_version": {
      "const": "1.0"
    },
    "record_id": {
      "type": "string",
      "minLength": 1
    },
    "source": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "source_id",
        "source_type",
        "source_ref"
      ],
      "properties": {
        "source_id": {
          "type": "string"
        },
        "source_type": {
          "enum": [
            "email",
            "pdf",
            "xlsx",
            "csv",
            "json",
            "text"
          ]
        },
        "source_ref": {
          "type": "string"
        }
      }
    },
    "fields": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "request_type",
        "order_id",
        "priority",
        "summary"
      ],
      "properties": {
        "request_type": {
          "type": [
            "string",
            "null"
          ]
        },
        "order_id": {
          "type": [
            "string",
            "null"
          ]
        },
        "priority": {
          "type": [
            "string",
            "null"
          ]
        },
        "summary": {
          "type": [
            "string",
            "null"
          ]
        }
      }
    },
    "unknowns": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "uniqueItems": true
    },
    "decision": {
      "type": "object",
      "additionalProperties": false,
      "required": [
        "route",
        "reason",
        "human_owner"
      ],
      "properties": {
        "route": {
          "enum": [
            "AUTO_PROCEED",
            "HUMAN_REVIEW",
            "HUMAN_APPROVAL",
            "BLOCK_AND_ESCALATE"
          ]
        },
        "reason": {
          "type": "string"
        },
        "human_owner": {
          "type": [
            "string",
            "null"
          ]
        }
      }
    },
    "provenance": {
      "type": "array",
      "items": {
        "type": "object",
        "additionalProperties": false,
        "required": [
          "field",
          "source_ref",
          "evidence"
        ],
        "properties": {
          "field": {
            "type": "string"
          },
          "source_ref": {
            "type": "string"
          },
          "evidence": {
            "type": "string"
          }
        }
      }
    }
  }
}