{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "dd-flow/engine-manifest@1",
  "title": "dd-flow engine manifest",
  "type": "object",
  "additionalProperties": false,
  "required": [
    "schema_id",
    "package_name",
    "package_version",
    "engine_id",
    "engine_version",
    "installed_at",
    "install_source",
    "package_root",
    "snapshot_root",
    "entrypoint",
    "supports_memorybank",
    "supports_contracts",
    "integrity"
  ],
  "properties": {
    "schema_id": { "const": "dd-flow/engine-manifest@1" },
    "package_name": { "type": "string", "minLength": 1 },
    "package_version": { "type": "string", "minLength": 1 },
    "engine_id": { "const": "dd-flow-engine" },
    "engine_version": { "type": "string", "minLength": 1 },
    "installed_at": { "type": "string", "format": "date-time" },
    "install_source": {
      "type": "string",
      "enum": ["bundled_package", "npx_package", "local_development"]
    },
    "package_root": { "type": "string", "minLength": 1 },
    "snapshot_root": { "type": "string", "minLength": 1 },
    "entrypoint": { "type": "string", "minLength": 1 },
    "supports_memorybank": {
      "type": "array",
      "items": { "type": "string", "minLength": 1 }
    },
    "supports_contracts": {
      "type": "object",
      "additionalProperties": {
        "type": "array",
        "items": { "type": "string", "minLength": 1 }
      }
    },
    "schema_registry": {
      "type": "object",
      "additionalProperties": false,
      "required": ["schema_id", "entries"],
      "properties": {
        "schema_id": { "const": "dd-flow/engine-schema-registry@1" },
        "entries": {
          "type": "array",
          "items": {
            "type": "object",
            "additionalProperties": false,
            "required": ["name", "id", "path", "checksum"],
            "properties": {
              "name": { "type": "string", "pattern": "^[a-z0-9][a-z0-9-]*$" },
              "id": { "type": "string", "minLength": 1 },
              "path": { "type": "string", "pattern": "^dist/schemas/[a-z0-9][a-z0-9-]*\\.schema\\.json$" },
              "checksum": { "type": "string", "pattern": "^[a-f0-9]{64}$" }
            }
          }
        }
      }
    },
    "integrity": {
      "type": "object",
      "additionalProperties": false,
      "required": ["source", "checksum", "mode"],
      "properties": {
        "source": { "const": "package_snapshot" },
        "checksum": { "type": ["string", "null"] },
        "mode": {
          "type": "string",
          "enum": ["file_list", "full_content", "package_manifest", "degraded_local_development"]
        }
      }
    }
  }
}