Error when submitting an array in 'output' parameter

[petersonbasso]

MCP server throws error when output is an array

Hi,

I noticed that the MCP server currently throws an error when the output parameter is provided as an array (e.g., ["hostid", "name"]) instead of a single string. It seems that only a string value like "extend" is accepted.

This prevents users from specifying multiple fields to return in the response. It would be great if the MCP server could support an array for the output parameter, similar to the Zabbix API behavior.

Steps to reproduce

Call the MCP server endpoint with output as an array:

{
  "method": "host.get",
  "params": {
    "output": ["hostid", "name"]
  }
}