createGmailLabel · Google Workspace MCP Server MCP

WHAT IT DOES

What createGmailLabel does on Google Workspace MCP Server

AI agents use createGmailLabel to create or update resources in Google Workspace MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Google Workspace MCP Server environment.

WHY IT NEEDS A POLICY

Why createGmailLabel needs a policy

This tool creates a new label, which is a reversible write operation. It organizes emails but does not read sensitive data, execute code, destroy data, or move money. The scope is limited to creating metadata (labels) used for email organization.

From the tool's definition Tool name 'createGmailLabel' and description 'Create a new Gmail label' indicates creation of a new organizational resource. The description explicitly states 'Create a new Gmail label (folder)' which is a write operation that modifies Gmail's label structure.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createGmailLabel Rate-limited

createGmailLabel 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": {
    "createGmailLabel": {
      "limits": [
        {
          "counter": "creategmaillabel_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 Google Workspace MCP Server, so you can run agents against it safely.

FAQ

Questions about createGmailLabel

What does the createGmailLabel tool do? +

Create a new Gmail label (folder). Labels can be used to organize emails. After creating a label, use addGmailLabel to apply it to messages. It is categorised as a Write tool in the Google Workspace MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on createGmailLabel? +

Register the Google Workspace MCP Server MCP server in PolicyLayer and add a rule for createGmailLabel: 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 Google Workspace MCP Server. Nothing to install.

What risk level is createGmailLabel? +

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

Can I rate-limit createGmailLabel? +

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

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

createGmailLabel is provided by the Google Workspace MCP Server MCP server (pm990320/google-workspace-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.