hash_excel_data · Office MCP Server MCP: Risk & Policy

WHAT IT DOES

What hash_excel_data does on Office MCP Server

AI agents invoke hash_excel_data to trigger actions in Office MCP Server. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why hash_excel_data needs a policy

The tool transforms Excel data by applying hash encryption, which is a data processing/computation operation. It likely reads data and writes back a transformed version, making Execute or Write the most applicable category. Since it performs a computation/transformation on data (hashing), Execute is appropriate.

From the tool's definition 'Excel 数据哈希加密' (Excel data hash encryption) — applies a hashing/encryption transformation to Excel data

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

hash_excel_data Rate-limited

hash_excel_data stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "hash_excel_data": {
      "limits": [
        {
          "counter": "hash_excel_data_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-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 hash_excel_data

What does the hash_excel_data tool do? +

Excel 数据哈希加密. It is categorised as a Execute tool in the Office MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on hash_excel_data? +

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

hash_excel_data is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit hash_excel_data? +

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

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

hash_excel_data 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.