{
  "name": "delete_workstream",
  "description": "Hard-delete a child workstream — removes the row AND cascades its conversation history, config, and attachments. Use for throwaway exploratory workstreams you no longer need. Irreversible. Prefer close_workstream when you might want to revisit later.",
  "parameters": {
    "type": "object",
    "properties": {
      "ws_id": {
        "type": "string",
        "description": "Workstream id to hard-delete."
      }
    },
    "required": ["ws_id"]
  },
  "coordinator": true,
  "primary_key": "ws_id"
}
