sms_list_numbers

What sms_list_numbers does on Twilio SMS MCP Server

AI agents call sms_list_numbers to retrieve information from Twilio SMS MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

Why sms_list_numbers is rated Low

Based on naming convention and context from sibling tools on the same Twilio SMS server, 'sms_list_numbers' almost certainly retrieves or enumerates phone numbers associated with the account. This is a read operation with no capacity to modify, delete, or execute external operations. Confidence is moderate rather than high because the description is empty and we must infer intent from the name and server context.

From the tool's definition Tool name 'sms_list_numbers' indicates a listing operation. The description is empty, but sibling tools with 'list' in the name (sms_list_inbox, sms_list_sent) strongly suggest this retrieves data without side effects.

The rule that runs sms_list_numbers safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Twilio SMS MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For sms_list_numbers, this is the rule to start with:

{
  "version": "1",
  "default": "deny",
  "tools": {
    "sms_list_numbers": {}
  }
}

Questions about sms_list_numbers