get_email_detail

THE RISK

Low Risk

Why get_email_detail needs a policy

This tool retrieves and queries email details without side effects. It performs a GET-like operation that does not create, modify, delete, or execute code. The primary risk is exposure of email content (potential data leakage), which is a low severity Read operation when classified by the tool's capability alone.

From the tool's definition Tool name 'get_email_detail' and description 'Get an email details from gmail' indicate retrieval of email data with no modification or deletion.

Documented attack patterns abuse exactly the kind of access get_email_detail gives an agent:

POLICY

How to control get_email_detail

PolicyLayer is an MCP gateway — it sits between your AI agents and Gmail, and nothing reaches the server without passing your rules. This is the rule we recommend for get_email_detail:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_email_detail": {}
  }
}

get_email_detail is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Gmail — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

More Gmail tools

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All 12 Gmail tools →

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about get_email_detail

What does the get_email_detail tool do? +

Get an email details from gmail. It is categorised as a Read tool in the Gmail MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_email_detail? +

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

What risk level is get_email_detail? +

get_email_detail is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_email_detail? +

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

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

get_email_detail is provided by the Gmail MCP server (ivanlhz/gmail-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Gmail tool call.

Start from Gmail, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →