{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://obliteratus.dev/schemas/trusted-worker-message-v1.schema.json",
  "title": "OBLITERATUS Trusted Worker Message v1",
  "type": "object",
  "additionalProperties": false,
  "required": ["schema_id", "schema_version", "message_type", "sequence", "source_inventory_digest", "adapter_digest", "policy_digest", "payload"],
  "properties": {
    "schema_id": {"const": "obliteratus.trusted-worker-message"},
    "schema_version": {"const": "1.0.0"},
    "message_type": {"enum": ["metadata_record", "tensor_fragment_record", "error", "complete"]},
    "sequence": {"type": "integer", "minimum": 0, "maximum": 100000000},
    "source_inventory_digest": {"$ref": "#/$defs/digest"},
    "adapter_digest": {"$ref": "#/$defs/digest"},
    "policy_digest": {"$ref": "#/$defs/digest"},
    "payload": {"type": "object"}
  },
  "allOf": [
    {"if": {"properties": {"message_type": {"const": "metadata_record"}}}, "then": {"properties": {"payload": {"$ref": "#/$defs/metadata"}}}},
    {"if": {"properties": {"message_type": {"const": "tensor_fragment_record"}}}, "then": {"properties": {"payload": {"$ref": "#/$defs/fragment"}}}},
    {"if": {"properties": {"message_type": {"const": "error"}}}, "then": {"properties": {"payload": {"$ref": "#/$defs/error"}}}},
    {"if": {"properties": {"message_type": {"const": "complete"}}}, "then": {"properties": {"payload": {"$ref": "#/$defs/complete"}}}}
  ],
  "$defs": {
    "id": {"type": "string", "minLength": 1, "maxLength": 512},
    "digest": {"type": "string", "pattern": "^sha256:[0-9a-f]{64}$"},
    "metadata": {
      "type": "object",
      "additionalProperties": false,
      "required": ["record_id", "record_type", "subject", "value", "evidence_refs"],
      "properties": {
        "record_id": {"$ref": "#/$defs/id"},
        "record_type": {"enum": ["producer", "topology", "state_scope", "tensor_metadata"]},
        "subject": {"type": "string", "pattern": "^/", "maxLength": 1024},
        "value": {"type": ["string", "integer", "boolean", "null"], "maxLength": 4096},
        "evidence_refs": {"type": "array", "maxItems": 1024, "uniqueItems": true, "items": {"$ref": "#/$defs/id"}}
      }
    },
    "fragment": {
      "type": "object",
      "additionalProperties": false,
      "required": ["fragment_id", "tensor_name", "dtype", "shape", "source_file_id", "source_byte_offset", "source_byte_length", "source_digest", "logical_axis", "logical_start", "logical_end"],
      "properties": {
        "fragment_id": {"$ref": "#/$defs/id"},
        "tensor_name": {"$ref": "#/$defs/id"},
        "dtype": {"$ref": "#/$defs/id"},
        "shape": {"type": "array", "maxItems": 64, "items": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807}},
        "source_file_id": {"$ref": "#/$defs/id"},
        "source_byte_offset": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
        "source_byte_length": {"type": "integer", "minimum": 1, "maximum": 9223372036854775807},
        "source_digest": {"$ref": "#/$defs/digest"},
        "logical_axis": {"type": ["integer", "null"], "minimum": 0, "maximum": 63},
        "logical_start": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
        "logical_end": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807}
      }
    },
    "error": {
      "type": "object",
      "additionalProperties": false,
      "required": ["code", "phase", "category", "subject_ids", "limit", "actual"],
      "properties": {
        "code": {"type": "string", "pattern": "^DCI_[A-Z0-9_]+$"},
        "phase": {"enum": ["policy", "preflight", "reader", "protocol", "validation", "materialization", "promotion", "evidence", "cleanup"]},
        "category": {"enum": ["unsupported", "trust", "source", "runtime", "resource", "protocol", "validation", "output", "evidence", "cleanup"]},
        "subject_ids": {"type": "array", "maxItems": 128, "uniqueItems": true, "items": {"$ref": "#/$defs/id"}},
        "limit": {"type": ["integer", "null"], "minimum": 0},
        "actual": {"type": ["integer", "null"], "minimum": 0}
      }
    },
    "complete": {
      "type": "object",
      "additionalProperties": false,
      "required": ["record_count", "encoded_bytes", "transcript_digest"],
      "properties": {
        "record_count": {"type": "integer", "minimum": 0, "maximum": 100000000},
        "encoded_bytes": {"type": "integer", "minimum": 0, "maximum": 9223372036854775807},
        "transcript_digest": {"$ref": "#/$defs/digest"}
      }
    }
  }
}