resend_send_email

A write tool on the Integrations MCP server.

SERVERIntegrations MCP SOURCEshriram-vasudevan/integrations-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/shriram-vasudevan-integrations-mcp/resend-send-email.md

WHAT IT DOES

What resend_send_email does on Integrations MCP

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

RISK

Why resend_send_email is rated Medium

The tool performs an irreversible outbound action (sending an email) that modifies external state. This falls under Write rather than Execute because it is a specific business operation (email delivery) rather than arbitrary code execution. Severity is medium because email spam or unwanted bulk sends could occur, but the financial and data-destruction impacts are limited compared to payment or deletion operations.

From the tool's definition Tool name 'resend_send_email' indicates sending emails via the Resend service. Sending emails creates new data (email records) and has outbound effects that cannot be trivially reversed.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs resend_send_email safely

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

resend_send_email Rate-limited

resend_send_email 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": {
    "resend_send_email": {
      "limits": [
        {
          "counter": "resend_send_email_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Integrations MCP, apply this rule, and every resend_send_email call is checked against it from then on.

FAQ

Questions about resend_send_email

What does the resend_send_email tool do? +

resend_send_email is a write tool on the Integrations MCP server. It is categorised as a Write tool in the Integrations MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on resend_send_email? +

Register the Integrations MCP server in PolicyLayer and add a rule for resend_send_email: 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 Integrations MCP. Nothing to install.

What risk level is resend_send_email? +

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

Can I rate-limit resend_send_email? +

Yes. Add a rate_limit block to the resend_send_email 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_send_email completely? +

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

resend_send_email is provided by the Integrations MCP server (shriram-vasudevan/integrations-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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