excel_moving_average · Office MCP Server MCP: Risk & Policy

WHAT IT DOES

What excel_moving_average does on Office MCP Server

AI agents use excel_moving_average 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 excel_moving_average needs a policy

This tool modifies Excel spreadsheet content by adding or calculating a moving average, which is a reversible write operation. It does not retrieve data (Read), execute arbitrary code (Execute), permanently delete data (Destructive), or move money (Financial).

From the tool's definition Tool name 'excel_moving_average' and server description indicate it creates or modifies Excel documents through automated operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

excel_moving_average Rate-limited

excel_moving_average 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": {
    "excel_moving_average": {
      "limits": [
        {
          "counter": "excel_moving_average_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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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 excel_moving_average

What does the excel_moving_average tool do? +

Excel 移动平均. 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 excel_moving_average? +

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

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

Can I rate-limit excel_moving_average? +

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

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

excel_moving_average 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.