rental_generate_rent_roll · Excel Finance MCP: Risk & Policy

WHAT IT DOES

What rental_generate_rent_roll does on Excel Finance MCP

AI agents use rental_generate_rent_roll to create or update resources in Excel Finance MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Excel Finance MCP environment.

WHY IT NEEDS A POLICY

Why rental_generate_rent_roll needs a policy

The tool generates a rent roll report, which involves creating a new document/workbook (Write) rather than merely reading existing data. In the context of this Excel Finance MCP server, 'generate' implies creating or writing an Excel report. There is no indication of destructive, financial transaction, or code execution behavior.

From the tool's definition Generate rent roll report for a property

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

rental_generate_rent_roll Rate-limited

rental_generate_rent_roll 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": {
    "rental_generate_rent_roll": {
      "limits": [
        {
          "counter": "rental_generate_rent_roll_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 Excel Finance MCP, so you can run agents against it safely.

FAQ

Questions about rental_generate_rent_roll

What does the rental_generate_rent_roll tool do? +

Generate rent roll report for a property. It is categorised as a Write tool in the Excel Finance MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on rental_generate_rent_roll? +

Register the Excel Finance MCP server in PolicyLayer and add a rule for rental_generate_rent_roll: 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 Excel Finance MCP. Nothing to install.

What risk level is rental_generate_rent_roll? +

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

Can I rate-limit rental_generate_rent_roll? +

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

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

rental_generate_rent_roll is provided by the Excel Finance MCP server (jeremycharlesgillespie/excel-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.