{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "urn:semantic-management-framework:0.1:schema:classification-rule",
  "$comment": "SPDX-License-Identifier: Apache-2.0",
  "title": "SMF ClassificationRule",
  "type": "object",
  "properties": {
    "smf": {
      "const": "0.1"
    },
    "kind": {
      "const": "ClassificationRule"
    },
    "id": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9_]*(\\.[a-z0-9_]+)+$",
      "description": "Stable, namespaced identifier. Never derived from a label alone."
    },
    "concept_ref": {
      "type": "string",
      "pattern": "^[a-z][a-z0-9_]*(\\.[a-z0-9_]+)+(@v[0-9]+)?$",
      "description": "Reference to an ID, optionally pinned to a version (id@vN)."
    },
    "criteria": {
      "type": "string",
      "minLength": 1
    },
    "structured": {
      "type": "object",
      "description": "Optional machine-evaluable form. Format is implementation-defined."
    },
    "status": {
      "type": "string",
      "enum": [
        "incomplete",
        "candidate",
        "recorded",
        "qualified",
        "standard",
        "preferred_standard",
        "superseded",
        "retired",
        "historical",
        "application"
      ],
      "description": "Registration status, adopted from ISO/IEC 11179-6."
    },
    "effective_from": {
      "type": "string",
      "format": "date"
    },
    "effective_to": {
      "type": "string",
      "format": "date"
    }
  },
  "required": [
    "smf",
    "kind",
    "id",
    "concept_ref",
    "criteria"
  ],
  "additionalProperties": false
}