merge_excel_workbooks · Office MCP Server MCP: Risk & Policy

WHAT IT DOES

What merge_excel_workbooks does on Office MCP Server

AI agents use merge_excel_workbooks 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 merge_excel_workbooks needs a policy

This tool creates a new merged workbook or modifies an existing one by combining data from multiple sources. This is a Write operation because it creates or modifies document data reversibly. While merging could theoretically overwrite original files if not handled carefully, the core function is content modification rather than irreversible deletion.

From the tool's definition merge_excel_workbooks - combines multiple Excel workbooks into one, which modifies/creates new document content by merging source files.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

merge_excel_workbooks Rate-limited

merge_excel_workbooks 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": {
    "merge_excel_workbooks": {
      "limits": [
        {
          "counter": "merge_excel_workbooks_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 merge_excel_workbooks

What does the merge_excel_workbooks tool do? +

合并多个 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 merge_excel_workbooks? +

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

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

Can I rate-limit merge_excel_workbooks? +

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

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

merge_excel_workbooks 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.