{
  "jsonrpc": "2.0",
  "id": 1,
  "result": {
    "tools": [
      {
        "name": "calculate_total",
        "description": "Adds two numeric values and returns the total.",
        "inputSchema": {
          "type": "object",
          "properties": {
            "left": { "type": "number" },
            "right": { "type": "number" }
          },
          "required": ["left", "right"],
          "additionalProperties": false
        }
      }
    ]
  }
}