encrypt_excel_workbook · Office MCP Server MCP

WHAT IT DOES

What encrypt_excel_workbook does on Office MCP Server

AI agents use encrypt_excel_workbook 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 encrypt_excel_workbook needs a policy

Encryption is a reversible modification that protects data but does not create, delete, or destroy content. It modifies the workbook's access control properties. While encryption can be removed (reversible), it significantly alters the document state and could lock out legitimate users if the password is mishandled.

From the tool's definition Tool name 'encrypt_excel_workbook' and description '加密 Excel 工作簿' (encrypt Excel workbook) indicate modification of an existing Excel file by applying encryption protection.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

encrypt_excel_workbook Rate-limited

encrypt_excel_workbook 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": {
    "encrypt_excel_workbook": {
      "limits": [
        {
          "counter": "encrypt_excel_workbook_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 encrypt_excel_workbook

What does the encrypt_excel_workbook tool do? +

加密 Excel 工作簿. 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 encrypt_excel_workbook? +

Register the Office MCP Server MCP server in PolicyLayer and add a rule for encrypt_excel_workbook: 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 encrypt_excel_workbook? +

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

Can I rate-limit encrypt_excel_workbook? +

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

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

encrypt_excel_workbook 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.