send_email_reply · MCP Remote Server MCP: Risk & Policy

WHAT IT DOES

What send_email_reply does on MCP Remote Server

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

WHY IT NEEDS A POLICY

Why send_email_reply needs a policy

This tool creates and sends email messages, which is a reversible Write operation with side effects (emails are transmitted and received by external parties). It falls short of Destructive (emails can be recalled/unsent in some systems, though imperfectly) and poses medium-to-high risk if an agent misconfigures recipients or content.

From the tool's definition Tool name is 'send_email_reply' and sibling context shows email operations (fetch_unread_emails, generate_email_reply, analyze_email_with_ai). 'Send' indicates transmission of data.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

send_email_reply Rate-limited

send_email_reply 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": {
    "send_email_reply": {
      "limits": [
        {
          "counter": "send_email_reply_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 Remote Server, so you can run agents against it safely.

FAQ

Questions about send_email_reply

What does the send_email_reply tool do? +

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

How do I enforce a policy on send_email_reply? +

Register the MCP Remote Server MCP server in PolicyLayer and add a rule for send_email_reply: 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 Remote Server. Nothing to install.

What risk level is send_email_reply? +

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

Can I rate-limit send_email_reply? +

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

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

send_email_reply is provided by the MCP Remote Server MCP server (sunnylabtv-crypto/ai_mcp_fastmcp_remote-public). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.