google_gmail_read

THE RISK

Low Risk

Why google_gmail_read needs a policy

This is a read-only operation that queries and retrieves email data. However, Gmail messages may contain sensitive personal information (PII, financial details, authentication credentials, confidential business communications), making accidental or malicious exposure a medium-severity risk. The tool does not modify, delete, or execute actions, so it remains in the Read category rather than a higher severity tier.

From the tool's definition Tool name explicitly states 'read' and description says 'Read a specific Gmail message by ID. Returns full body, headers, and labels.' – it retrieves message content without modification.

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

POLICY

How to control google_gmail_read

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

policy.json

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

google_gmail_read 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 Odoo Claude MCP — 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

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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 google_gmail_read

What does the google_gmail_read tool do? +

Read a specific Gmail message by ID. Returns full body, headers, and labels. It is categorised as a Read tool in the Odoo Claude MCP MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on google_gmail_read? +

Register the Odoo Claude MCP server in PolicyLayer and add a rule for google_gmail_read: 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 Odoo Claude MCP. Nothing to install.

What risk level is google_gmail_read? +

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

Can I rate-limit google_gmail_read? +

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

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

google_gmail_read is provided by the Odoo Claude MCP server (rosenvladimirov/odoo-claude-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Odoo Claude MCP tool call.

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

CHECK YOUR STACK →