{
  "title": "Concept Schema",
  "type": "object",
  "properties": {
    "name": { "type": "string", "required": true },
    "actions": {
      "elements": { "$ref": "action" },
      "description": "The action definition."
    },
    "defaultAction": { "type": "string" }
  },
  "additionalProperties": false,
  "required": ["name", "actions"]
}