RESEND_OTP · Travel Agent MCP Server MCP: Risk & Policy

WHAT IT DOES

What RESEND_OTP does on Travel Agent MCP Server

AI agents invoke RESEND_OTP to trigger actions in Travel Agent MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why RESEND_OTP needs a policy

This tool triggers an external operation — sending a message/code to the user via some communication channel (e.g., SMS or email). It does not merely read or write data, but actively executes an external action (dispatching an OTP). Misuse could enable OTP flooding/spam attacks against users, hence medium severity.

From the tool's definition Resend a one-time verification code to the user

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

RESEND_OTP Rate-limited

RESEND_OTP stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "RESEND_OTP": {
      "limits": [
        {
          "counter": "resend_otp_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

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

FAQ

Questions about RESEND_OTP

What does the RESEND_OTP tool do? +

Resend a one-time verification code to the user. It is categorised as a Execute tool in the Travel Agent MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on RESEND_OTP? +

Register the Travel Agent MCP Server MCP server in PolicyLayer and add a rule for RESEND_OTP: 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 Travel Agent MCP Server. Nothing to install.

What risk level is RESEND_OTP? +

RESEND_OTP is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit RESEND_OTP? +

Yes. Add a rate_limit block to the RESEND_OTP 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 RESEND_OTP completely? +

Set action: deny in the PolicyLayer policy for RESEND_OTP. 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 RESEND_OTP? +

RESEND_OTP is provided by the Travel Agent MCP Server MCP server (nxgnosis/travelagentmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.