read_gmail_email

Read an email by its message ID

SERVERVaultAssist SOURCE3xcaffeine/mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/3xcaffeine-mcp-server/read-gmail-email.md

WHAT IT DOES

What read_gmail_email does on VaultAssist

AI agents call read_gmail_email to retrieve information from VaultAssist without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why read_gmail_email is rated Low

This tool performs a read-only query operation on Gmail data. It retrieves email content by ID without any side effects, modifications, or destructive actions. While emails may contain sensitive personal or business information, the risk is mitigated by OAuth 2.1 authentication and vault-level security controls mentioned in the server description.

From the tool's definition Tool name 'read_gmail_email' and description 'Read an email by its message ID' clearly indicate retrieval of email content with no modification or deletion.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs read_gmail_email safely

PolicyLayer is an MCP gateway: it sits between your AI agents and VaultAssist, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For read_gmail_email, this is the rule to start with:

read_gmail_email Allowed

read_gmail_email is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect VaultAssist, apply this rule, and every read_gmail_email call is checked against it from then on.

FAQ

Questions about read_gmail_email

What does the read_gmail_email tool do? +

Read an email by its message ID. It is categorised as a Read tool in the VaultAssist MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on read_gmail_email? +

Register the VaultAssist MCP server in PolicyLayer and add a rule for read_gmail_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 VaultAssist. Nothing to install.

What risk level is read_gmail_email? +

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

Can I rate-limit read_gmail_email? +

Yes. Add a rate_limit block to the read_gmail_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 read_gmail_email completely? +

Set action: deny in the PolicyLayer policy for read_gmail_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 read_gmail_email? +

read_gmail_email is provided by the VaultAssist MCP server (3xcaffeine/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on VaultAssist, and thousands of servers like it.

This server

All 79 VaultAssist tools →

Across the catalogue

read_input_file on 0gzk →claude_read_file on Claude Bridge → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →