setup_matrix_sheet · Revenue Engine MCP: Risk & Policy

WHAT IT DOES

What setup_matrix_sheet does on Revenue Engine MCP

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

WHY IT NEEDS A POLICY

Why setup_matrix_sheet needs a policy

This tool performs a creation action that adds a new sheet to Google Sheets, which is reversible (sheets can be deleted). It does not execute arbitrary code, delete data irreversibly, or move money. Write category is appropriate because it creates/initializes structured data.

From the tool's definition Tool creates a new sheet with structure and headers in Google Sheets ('Auto-create Knowledge Matrix sheet'). This is a creation operation that modifies the underlying data store (Sheets workbook) by adding a new resource with predefined format.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

setup_matrix_sheet Rate-limited

setup_matrix_sheet 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": {
    "setup_matrix_sheet": {
      "limits": [
        {
          "counter": "setup_matrix_sheet_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 Revenue Engine MCP, so you can run agents against it safely.

FAQ

Questions about setup_matrix_sheet

What does the setup_matrix_sheet tool do? +

Auto-create Knowledge Matrix sheet with proper structure and headers. Run this once before using other Matrix tools. It is categorised as a Write tool in the Revenue Engine 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 setup_matrix_sheet? +

Register the Revenue Engine MCP server in PolicyLayer and add a rule for setup_matrix_sheet: 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 Revenue Engine MCP. Nothing to install.

What risk level is setup_matrix_sheet? +

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

Can I rate-limit setup_matrix_sheet? +

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

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

setup_matrix_sheet is provided by the Revenue Engine MCP server (promptishoperations/mcpspec). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.