protect_excel_sheet · Office MCP Server MCP: Risk & Policy

WHAT IT DOES

What protect_excel_sheet does on Office MCP Server

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

WHY IT NEEDS A POLICY

Why protect_excel_sheet needs a policy

This tool creates or modifies document protection settings reversibly—users can toggle protection on and off. It does not delete data (Destructive), execute arbitrary code (Execute), involve financial transactions (Financial), or merely read data (Read). While protection changes affect access control, the action itself is a reversible modification, placing it in Write.

From the tool's definition Tool name is 'protect_excel_sheet' and description translates to 'protect/unprotect Excel worksheet'. The bidirectional nature (protect OR unprotect) indicates the tool modifies sheet protection settings, which are metadata/configuration changes to a document.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

protect_excel_sheet Rate-limited

protect_excel_sheet 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": {
    "protect_excel_sheet": {
      "limits": [
        {
          "counter": "protect_excel_sheet_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 Office MCP Server, so you can run agents against it safely.

FAQ

Questions about protect_excel_sheet

What does the protect_excel_sheet tool do? +

保护/取消保护 Excel 工作表. It is categorised as a Write tool in the Office 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 protect_excel_sheet? +

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

What risk level is protect_excel_sheet? +

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

Can I rate-limit protect_excel_sheet? +

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

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

protect_excel_sheet is provided by the Office MCP Server MCP server (walkingzzzy/office-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.