mark_gmail_message_read · Sudo Mcp Gmail MCP: Risk & Policy

WHAT IT DOES

What mark_gmail_message_read does on Sudo Mcp Gmail

AI agents use mark_gmail_message_read to create or update resources in Sudo Mcp Gmail — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Sudo Mcp Gmail environment.

WHY IT NEEDS A POLICY

Why mark_gmail_message_read needs a policy

This tool modifies email metadata (read status) reversibly without deleting data or executing external code. It falls under Write category as it changes message state. Severity is medium because while the modification is reversible, unintended marking of messages as read could interfere with email management workflows, notification systems, or compliance/audit trails depending on context.

From the tool's definition Tool name 'mark_gmail_message_read' and description 'Mark a Gmail message as read' indicate a state modification operation that changes the read/unread status of an email message.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mark_gmail_message_read Rate-limited

mark_gmail_message_read 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": {
    "mark_gmail_message_read": {
      "limits": [
        {
          "counter": "mark_gmail_message_read_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 Sudo Mcp Gmail, so you can run agents against it safely.

FAQ

Questions about mark_gmail_message_read

What does the mark_gmail_message_read tool do? +

Mark a Gmail message as read. It is categorised as a Write tool in the Sudo Mcp Gmail MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on mark_gmail_message_read? +

Register the Sudo Mcp Gmail MCP server in PolicyLayer and add a rule for mark_gmail_message_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 Sudo Mcp Gmail. Nothing to install.

What risk level is mark_gmail_message_read? +

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

Can I rate-limit mark_gmail_message_read? +

Yes. Add a rate_limit block to the mark_gmail_message_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 mark_gmail_message_read completely? +

Set action: deny in the PolicyLayer policy for mark_gmail_message_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 mark_gmail_message_read? +

mark_gmail_message_read is provided by the Sudo Mcp Gmail MCP server (sahilyadav902/sudo-mcp-gmail). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.