{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://api.decide.fyi/schemas/rulebook-migration-v1.schema.json",
  "title": "Decide Rulebook Migration Manifest v1",
  "description": "Closed release-gate manifest for Decide Rulebook v1 evaluator, adapter, and rulebook migrations.",
  "type": "object",
  "required": [
    "schema_version",
    "migration_id",
    "status",
    "compatibility_class",
    "candidate",
    "expected_drift",
    "approval"
  ],
  "properties": {
    "schema_version": {
      "const": "rulebook_migration_v1"
    },
    "migration_id": {
      "$ref": "#/$defs/id"
    },
    "status": {
      "type": "string",
      "enum": [
        "proposed",
        "approved",
        "rejected",
        "superseded"
      ]
    },
    "compatibility_class": {
      "type": "string",
      "enum": [
        "evaluator",
        "adapter",
        "rulebook",
        "public_response",
        "mixed"
      ]
    },
    "summary": {
      "type": "string",
      "minLength": 1,
      "maxLength": 500
    },
    "corpus": {
      "$ref": "#/$defs/path"
    },
    "fixtures": {
      "type": "array",
      "items": {
        "$ref": "#/$defs/id"
      },
      "maxItems": 200
    },
    "candidate": {
      "type": "object",
      "properties": {
        "evaluator_version": {
          "type": "string",
          "minLength": 1,
          "maxLength": 120
        },
        "rulebooks": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/candidate_rulebook"
          },
          "maxItems": 100
        },
        "adapters": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/candidate_adapter"
          },
          "maxItems": 100
        }
      },
      "additionalProperties": false
    },
    "expected_drift": {
      "type": "object",
      "required": [
        "policy"
      ],
      "properties": {
        "policy": {
          "type": "string",
          "enum": [
            "none",
            "requires_approval"
          ]
        },
        "fixtures": {
          "type": "array",
          "items": {
            "$ref": "#/$defs/id"
          },
          "maxItems": 200
        },
        "fields": {
          "type": "array",
          "items": {
            "type": "string",
            "enum": [
              "statusCode",
              "engine",
              "evaluator_version",
              "semantic_output",
              "rulebook",
              "input_hash",
              "attestation_hash",
              "trusted_adapter",
              "adapter_facts"
            ]
          },
          "maxItems": 20
        }
      },
      "additionalProperties": false
    },
    "approval": {
      "type": "object",
      "required": [
        "status"
      ],
      "properties": {
        "status": {
          "type": "string",
          "enum": [
            "not_required",
            "pending",
            "approved",
            "rejected"
          ]
        },
        "approved_by": {
          "type": [
            "string",
            "null"
          ],
          "minLength": 1,
          "maxLength": 160
        },
        "approved_at": {
          "type": [
            "string",
            "null"
          ],
          "format": "date-time"
        },
        "notes": {
          "type": [
            "string",
            "null"
          ],
          "maxLength": 1000
        }
      },
      "additionalProperties": false
    }
  },
  "additionalProperties": false,
  "$defs": {
    "id": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9_.:-]{1,159}$"
    },
    "path": {
      "type": "string",
      "minLength": 1,
      "maxLength": 300
    },
    "sha256": {
      "type": "string",
      "pattern": "^(<sha256>|[a-f0-9]{64})$"
    },
    "candidate_rulebook": {
      "type": "object",
      "required": [
        "rulebook_id",
        "path"
      ],
      "properties": {
        "rulebook_id": {
          "$ref": "#/$defs/id"
        },
        "path": {
          "$ref": "#/$defs/path"
        }
      },
      "additionalProperties": false
    },
    "candidate_adapter": {
      "type": "object",
      "required": [
        "adapter_id",
        "version",
        "manifest_hash"
      ],
      "properties": {
        "adapter_id": {
          "$ref": "#/$defs/id"
        },
        "version": {
          "type": "string",
          "minLength": 1,
          "maxLength": 120
        },
        "manifest_hash": {
          "$ref": "#/$defs/sha256"
        }
      },
      "additionalProperties": false
    }
  }
}