{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "$id": "https://cdsl.local/schema/cad.cdsl.design-intent.v1",
  "title": "CDSL design intent",
  "type": "object",
  "properties": {
    "schema": {"const": "cad.cdsl.design-intent.v1"},
    "schema_version": {"const": "1.0"},
    "mode": {"enum": ["create", "revise"]},
    "request": {"type": "string", "minLength": 1},
    "base_revision_id": {"type": "string"},
    "structures": {"type": "array", "items": {"$ref": "#/$defs/structure"}},
    "feature_order": {"type": "array", "items": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"}},
    "assumptions": {"type": "array", "items": {"type": "string", "minLength": 1}},
    "open_questions": {"type": "array", "items": {"$ref": "#/$defs/openQuestion"}},
    "capability_gaps": {"type": "array", "items": {"$ref": "#/$defs/capabilityGap"}},
    "verification_expectations": {"type": "array", "items": {"$ref": "#/$defs/verificationExpectation"}},
    "status": {"enum": ["ready", "needs_clarification"]},
    "intent_id": {"type": "string", "pattern": "^intent_[a-z0-9]{12}$"},
    "created_at": {"type": "string", "minLength": 1},
    "part_skill_ids": {"type": "array", "items": {"type": "string", "minLength": 1}},
    "part_skill_selection": {"type": "object"}
  },
  "required": [
    "schema",
    "schema_version",
    "mode",
    "request",
    "base_revision_id",
    "structures",
    "feature_order",
    "assumptions",
    "open_questions",
    "capability_gaps",
    "verification_expectations",
    "status"
  ],
  "additionalProperties": false,
  "$defs": {
    "structure": {
      "type": "object",
      "properties": {
        "id": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"},
        "cdsl_feature_id": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"},
        "role": {"enum": ["base", "reference", "additive", "subtractive", "dressup", "pattern"]},
        "purpose": {"type": "string", "minLength": 1},
        "depends_on": {"type": "array", "items": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"}},
        "cdsl_strategy": {"$ref": "#/$defs/cdslStrategy"}
      },
      "required": ["id", "cdsl_feature_id", "role", "purpose", "depends_on", "cdsl_strategy"],
      "additionalProperties": false
    },
    "cdslStrategy": {
      "type": "object",
      "properties": {
        "atomic_id": {"type": "string", "minLength": 1},
        "profile_type": {"type": "string", "minLength": 1},
        "parameter_roles": {"type": "array", "items": {"type": "string", "minLength": 1}},
        "selector_roles": {"type": "array", "items": {"type": "string", "minLength": 1}}
      },
      "required": ["atomic_id", "parameter_roles", "selector_roles"],
      "additionalProperties": false
    },
    "openQuestion": {
      "type": "object",
      "properties": {
        "id": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"},
        "question": {"type": "string", "minLength": 1},
        "blocking": {"type": "boolean"}
      },
      "required": ["id", "question", "blocking"],
      "additionalProperties": false
    },
    "capabilityGap": {
      "type": "object",
      "properties": {
        "code": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,100}$"},
        "structure_id": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"},
        "message": {"type": "string", "minLength": 1},
        "blocking": {"type": "boolean"}
      },
      "required": ["code", "structure_id", "message", "blocking"],
      "additionalProperties": false
    },
    "verificationExpectation": {
      "oneOf": [
        {
          "type": "object",
          "properties": {
            "type": {"const": "feature_count"},
            "feature_id": {"type": "string", "pattern": "^[A-Za-z0-9_-]{1,80}$"},
            "expected": {"type": "integer", "minimum": 0}
          },
          "required": ["type", "feature_id", "expected"],
          "additionalProperties": false
        },
        {
          "type": "object",
          "properties": {"type": {"const": "symmetry"}, "axis": {"enum": ["x", "y", "z"]}},
          "required": ["type", "axis"],
          "additionalProperties": false
        },
        {
          "type": "object",
          "properties": {
            "type": {"const": "bbox"},
            "expected_mm": {
              "type": "object",
              "properties": {
                "x": {"type": "number", "exclusiveMinimum": 0},
                "y": {"type": "number", "exclusiveMinimum": 0},
                "z": {"type": "number", "exclusiveMinimum": 0}
              },
              "required": ["x", "y", "z"],
              "additionalProperties": false
            }
          },
          "required": ["type", "expected_mm"],
          "additionalProperties": false
        }
      ]
    }
  }
}