mark_gmail_message_unread · Sudo Mcp Gmail MCP

WHAT IT DOES

What mark_gmail_message_unread does on Sudo Mcp Gmail

AI agents use mark_gmail_message_unread 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_unread needs a policy

This tool modifies metadata (message read status) rather than deleting or creating content. The action is reversible—a message can be marked read again. While it affects email organization and could be misused to obscure message history or spam legitimate communications by marking them unread, the impact is limited to state modification without data loss or irreversible consequences.

From the tool's definition Tool description states 'Mark a Gmail message as unread,' which modifies the read/unread status flag of an existing message. This is a reversible state change operation.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

mark_gmail_message_unread Rate-limited

mark_gmail_message_unread 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_unread": {
      "limits": [
        {
          "counter": "mark_gmail_message_unread_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_unread

What does the mark_gmail_message_unread tool do? +

Mark a Gmail message as unread. 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_unread? +

Register the Sudo Mcp Gmail MCP server in PolicyLayer and add a rule for mark_gmail_message_unread: 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_unread? +

mark_gmail_message_unread 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_unread? +

Yes. Add a rate_limit block to the mark_gmail_message_unread 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_unread completely? +

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

mark_gmail_message_unread 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.