{
  "name": "forget",
  "description": "Remove a persistent memory by key. Use when the user asks to forget, remove, or delete a stored memory.",
  "parameters": {
    "type": "object",
    "properties": {
      "key": {
        "type": "string",
        "description": "The memory key to remove (e.g. 'user_name')."
      }
    },
    "required": ["key"]
  },
  "primary_key": "key"
}
