vtex_send_email · MCP VTEX Server MCP: Risk & Policy

WHAT IT DOES

What vtex_send_email does on MCP VTEX Server

AI agents invoke vtex_send_email to trigger actions in MCP VTEX 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 vtex_send_email needs a policy

Sending an email is an external operation with real-world effects (delivering messages to recipients). It is not merely writing internal data but executing an action that reaches outside the system. Misuse could result in sending spam, phishing, or unauthorized communications to customers at scale, making severity high.

From the tool's definition 'Send an email using template' — triggers an external email operation to real recipients

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

vtex_send_email Rate-limited

vtex_send_email 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": {
    "vtex_send_email": {
      "limits": [
        {
          "counter": "vtex_send_email_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 MCP VTEX Server, so you can run agents against it safely.

FAQ

Questions about vtex_send_email

What does the vtex_send_email tool do? +

Send an email using template. It is categorised as a Execute tool in the MCP VTEX 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 vtex_send_email? +

Register the MCP VTEX Server MCP server in PolicyLayer and add a rule for vtex_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 MCP VTEX Server. Nothing to install.

What risk level is vtex_send_email? +

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

Can I rate-limit vtex_send_email? +

Yes. Add a rate_limit block to the vtex_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 vtex_send_email completely? +

Set action: deny in the PolicyLayer policy for vtex_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 vtex_send_email? +

vtex_send_email is provided by the MCP VTEX Server MCP server (leosepulveda/mcp-vtex). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.