google_gmail_search

THE RISK

Low Risk

Why google_gmail_search needs a policy

This tool retrieves or queries Gmail messages without creating, modifying, deleting, or executing any actions. Even though it accesses email data (potentially sensitive), the operation is read-only with no side effects. The blast radius is limited to information disclosure of messages the authenticated account can already access.

From the tool's definition Tool name 'google_gmail_search' and description 'Search Gmail messages' indicate retrieval of email data without modification. Uses 'search syntax', a query-based operation typical of Read operations.

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

POLICY

How to control google_gmail_search

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_search:

policy.json

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

google_gmail_search 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_search

What does the google_gmail_search tool do? +

Search Gmail messages. Uses Gmail search syntax. 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_search? +

Register the Odoo Claude MCP server in PolicyLayer and add a rule for google_gmail_search: 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_search? +

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

Can I rate-limit google_gmail_search? +

Yes. Add a rate_limit block to the google_gmail_search 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_search completely? +

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

google_gmail_search 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 →