excel_generate_macro · Ultimate-MCP-Server MCP

WHAT IT DOES

What excel_generate_macro does on Ultimate-MCP-Server

AI agents invoke excel_generate_macro to trigger actions in Ultimate-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 excel_generate_macro needs a policy

Excel macros are executable scripts (typically VBA) that can automate tasks, access the file system, run shell commands, and perform arbitrary operations. Even if this tool only generates (writes) the macro rather than running it, macro generation is closest to Execute/Write. Given the potential for macro code to be executed and its broad capabilities, Execute at high severity is appropriate.

From the tool's definition Tool name: 'excel_generate_macro' — 'macro' implies generating executable code/scripts for Excel

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

excel_generate_macro Rate-limited

excel_generate_macro 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": {
    "excel_generate_macro": {
      "limits": [
        {
          "counter": "excel_generate_macro_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 Ultimate-MCP-Server, so you can run agents against it safely.

FAQ

Questions about excel_generate_macro

What does the excel_generate_macro tool do? +

excel_generate_macro. It is categorised as a Execute tool in the Ultimate-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 excel_generate_macro? +

Register the Ultimate-MCP-Server MCP server in PolicyLayer and add a rule for excel_generate_macro: 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 Ultimate-MCP-Server. Nothing to install.

What risk level is excel_generate_macro? +

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

Can I rate-limit excel_generate_macro? +

Yes. Add a rate_limit block to the excel_generate_macro 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_generate_macro completely? +

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

excel_generate_macro is provided by the Ultimate-MCP-Server MCP server (logos-parthenos-ai/ultimate_mcp_server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.