depreciation_sum_of_years · Excel Finance MCP: Risk & Policy

WHAT IT DOES

What depreciation_sum_of_years does on Excel Finance MCP

AI agents use depreciation_sum_of_years 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 depreciation_sum_of_years needs a policy

This tool computes and generates a depreciation schedule—a financial calculation output that will be created/written to a workbook or report. It does not execute arbitrary code, delete data, or move money, but it does create/modify financial data records. Write is appropriate because the primary effect is generating and storing a calculated financial artifact.

From the tool's definition Tool creates a 'depreciation schedule' which is a structured financial calculation output that would typically be written to Excel workbooks (per server description: 'creating Excel workbooks with advanced financial formulas').

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

depreciation_sum_of_years Rate-limited

depreciation_sum_of_years 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": {
    "depreciation_sum_of_years": {
      "limits": [
        {
          "counter": "depreciation_sum_of_years_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 depreciation_sum_of_years

What does the depreciation_sum_of_years tool do? +

Calculate sum-of-years-digits depreciation schedule. 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 depreciation_sum_of_years? +

Register the Excel Finance MCP server in PolicyLayer and add a rule for depreciation_sum_of_years: 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 depreciation_sum_of_years? +

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

Can I rate-limit depreciation_sum_of_years? +

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

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

depreciation_sum_of_years 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.