format_cells · Enhanced MCP Server MCP: Risk & Policy

WHAT IT DOES

What format_cells does on Enhanced MCP Server

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

WHY IT NEEDS A POLICY

Why format_cells needs a policy

This tool modifies the visual formatting of spreadsheet cells (bold, colors, borders, alignment). It writes/updates styling metadata to the spreadsheet but does not delete data or execute code. Changes are reversible (formatting can be undone or changed), placing it firmly in the Write category. Misuse could alter the appearance of important financial or tracking data, warranting medium severity.

From the tool's definition Format cells in a spreadsheet (bold, colors, borders, alignment)

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

format_cells Rate-limited

format_cells 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": {
    "format_cells": {
      "limits": [
        {
          "counter": "format_cells_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 Enhanced MCP Server, so you can run agents against it safely.

FAQ

Questions about format_cells

What does the format_cells tool do? +

Format cells in a spreadsheet (bold, colors, borders, alignment). It is categorised as a Write tool in the Enhanced 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 format_cells? +

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

What risk level is format_cells? +

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

Can I rate-limit format_cells? +

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

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

format_cells is provided by the Enhanced MCP Server MCP server (pbulbule13/mcpwithgoogle). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.