vapi_update_squad · Mcp Vapi MCP: Risk & Policy

WHAT IT DOES

What vapi_update_squad does on Mcp Vapi

AI agents use vapi_update_squad to create or update resources in Mcp Vapi — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Vapi environment.

WHY IT NEEDS A POLICY

Why vapi_update_squad needs a policy

This tool modifies squad configuration (name and membership) reversibly. It does not delete data (which would be Destructive), execute arbitrary code (which would be Execute), move money (which would be Financial), or merely retrieve data (which would be Read).

From the tool's definition Tool name is 'vapi_update_squad' and description states 'Update a squad — rename it or change its members.' The verbs 'rename' and 'change' indicate modification of existing data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vapi_update_squad Rate-limited

vapi_update_squad stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "vapi_update_squad": {
      "limits": [
        {
          "counter": "vapi_update_squad_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Vapi, so you can run agents against it safely.

FAQ

Questions about vapi_update_squad

What does the vapi_update_squad tool do? +

Update a squad — rename it or change its members. It is categorised as a Write tool in the Mcp Vapi MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on vapi_update_squad? +

Register the Mcp Vapi MCP server in PolicyLayer and add a rule for vapi_update_squad: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Mcp Vapi. Nothing to install.

What risk level is vapi_update_squad? +

vapi_update_squad is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit vapi_update_squad? +

Yes. Add a rate_limit block to the vapi_update_squad rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block vapi_update_squad completely? +

Set action: deny in the PolicyLayer policy for vapi_update_squad. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides vapi_update_squad? +

vapi_update_squad is provided by the Mcp Vapi MCP server (adhirajhangal/mcp-vapi). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.