{
  "type": "object",
  "properties": {
    "parentReference": {
      "type": "string",
      "description": "Chart ID (e.g., 'chart_123') to create new action step, OR action step entity name (e.g., 'chart_123_action_1' or 'chart_123_desired_outcome') to expand existing action step"
    },
    "actionDescription": {
      "type": "string",
      "description": "Title/description of the action step"
    },
    "currentReality": {
      "type": "string",
      "description": "REQUIRED for new action creation. Honest assessment of actual current state relative to this action step. Examples: 'Never used Django', 'Completed models, struggling with views'. AVOID: 'Ready to begin'. Optional when expanding existing actions."
    },
    "initialActionSteps": {
      "type": "array",
      "items": {
        "type": "string"
      },
      "description": "Optional list of sub-actions for the action step"
    },
    "dueDate": {
      "type": "string",
      "description": "Optional due date (ISO string). Auto-distributed if not provided."
    }
  },
  "required": [
    "parentReference",
    "actionDescription"
  ]
}