excel_add_worksheet

Add a new worksheet to Excel

SERVERMcp Windows SOURCEmukul975/mcp-windows-automation

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/mukul975-mcp-windows-automation/excel-add-worksheet.md

WHAT IT DOES

What excel_add_worksheet does on Mcp Windows

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

RISK

Why excel_add_worksheet is rated Medium

This tool creates a new worksheet, which is a reversible modification to an Excel file. It does not execute arbitrary code, delete data, move money, or cause irreversible harm. The severity is medium because unintended worksheet creation could clutter workbooks and cause confusion, but the action is easily undone by deleting the worksheet.

From the tool's definition The tool is named 'excel_add_worksheet' and described as 'Add a new worksheet to Excel', which creates new data structures within an Excel workbook.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs excel_add_worksheet safely

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

excel_add_worksheet Rate-limited

excel_add_worksheet 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": {
    "excel_add_worksheet": {
      "limits": [
        {
          "counter": "excel_add_worksheet_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about excel_add_worksheet

What does the excel_add_worksheet tool do? +

Add a new worksheet to Excel. It is categorised as a Write tool in the Mcp Windows MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on excel_add_worksheet? +

Register the Mcp Windows MCP server in PolicyLayer and add a rule for excel_add_worksheet: 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 Mcp Windows. Nothing to install.

What risk level is excel_add_worksheet? +

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

Can I rate-limit excel_add_worksheet? +

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

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

excel_add_worksheet is provided by the Mcp Windows MCP server (mukul975/mcp-windows-automation). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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