approve_run · Carrier Accounting MCP: Risk & Policy

WHAT IT DOES

What approve_run does on Carrier Accounting MCP

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

WHY IT NEEDS A POLICY

Why approve_run needs a policy

This tool performs a write operation on financial data at scale. While not destructive (transactions can presumably be reversed through other means) and not moving money directly, approving bulk transactions commits them to the accounting ledger (Applied Epic).

From the tool's definition Tool name 'approve_run' and description 'Bulk approve all review-queue transactions from a specific run' indicates the tool commits or finalizes financial transactions in batch.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

approve_run Rate-limited

approve_run 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": {
    "approve_run": {
      "limits": [
        {
          "counter": "approve_run_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 Carrier Accounting MCP, so you can run agents against it safely.

FAQ

Questions about approve_run

What does the approve_run tool do? +

Bulk approve all review-queue transactions from a specific run. It is categorised as a Write tool in the Carrier Accounting 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 approve_run? +

Register the Carrier Accounting MCP server in PolicyLayer and add a rule for approve_run: 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 Carrier Accounting MCP. Nothing to install.

What risk level is approve_run? +

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

Can I rate-limit approve_run? +

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

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

approve_run is provided by the Carrier Accounting MCP server (pramodmisra/carrier-accounting-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.