list_worksheets

A read tool on the Excel MCP server.

SERVERExcel MCP Server SOURCEaifornorms/excelmcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/aifornorms-excelmcp/list-worksheets.md

WHAT IT DOES

What list_worksheets does on Excel MCP Server

AI agents call list_worksheets to retrieve information from Excel MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_worksheets is rated Low

This tool retrieves or lists worksheet metadata from an Excel file without modifying data or executing arbitrary code. It has no side effects and fits squarely within the Read category. Severity is low because misuse by an AI agent would only expose structure information about a workbook, not enable destructive or financial harm.

From the tool's definition Tool name 'list_worksheets' indicates a retrieval operation that queries the structure of an Excel workbook.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_worksheets safely

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

list_worksheets Allowed

list_worksheets is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_worksheets": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Excel MCP Server, apply this rule, and every list_worksheets call is checked against it from then on.

FAQ

Questions about list_worksheets

What does the list_worksheets tool do? +

list_worksheets is a read tool on the Excel MCP Server MCP server. It is categorised as a Read tool in the Excel MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_worksheets? +

Register the Excel MCP Server MCP server in PolicyLayer and add a rule for list_worksheets: 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 Excel MCP Server. Nothing to install.

What risk level is list_worksheets? +

list_worksheets is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_worksheets? +

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

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

list_worksheets is provided by the Excel MCP Server MCP server (aifornorms/excelmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

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