addExcelSheet · Google Workspace MCP Server MCP

WHAT IT DOES

What addExcelSheet does on Google Workspace MCP Server

AI agents use addExcelSheet 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 addExcelSheet needs a policy

This tool creates a new sheet/tab in an existing Excel file, which is a reversible modification of data structure. It does not delete, execute arbitrary code, move funds, or retrieve data. The 'medium' severity reflects that bulk operations on many sheets could impact workflow or consume quota, but the action is non-destructive and can be undone.

From the tool's definition Tool name 'addExcelSheet' and description 'Adds a new sheet/tab to an Excel-format file (.xlsx or .xls) on Google Drive' indicate creation of a new sheet within an existing spreadsheet file.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

addExcelSheet Rate-limited

addExcelSheet 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": {
    "addExcelSheet": {
      "limits": [
        {
          "counter": "addexcelsheet_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 addExcelSheet

What does the addExcelSheet tool do? +

Adds a new sheet/tab to an Excel-format file (.xlsx or .xls) on Google Drive. 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 addExcelSheet? +

Register the Google Workspace MCP Server MCP server in PolicyLayer and add a rule for addExcelSheet: 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 addExcelSheet? +

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

Can I rate-limit addExcelSheet? +

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

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

addExcelSheet 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.