commerce_generate_po · Commerce- MCP: Risk & Policy

WHAT IT DOES

What commerce_generate_po does on Commerce-MCP

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

WHY IT NEEDS A POLICY

Why commerce_generate_po needs a policy

PO (purchase order) generation is a Write operation—it creates new transactional documents that record purchase commitments. While financial in nature, the tool itself generates the document rather than executing payments, so it is Write rather than Financial.

From the tool's definition Tool name 'commerce_generate_po' indicates generation of purchase orders (PO), which typically involves creating new financial or operational documents. The sibling tools on this e-commerce server include order processing and inventory management functions.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

commerce_generate_po Rate-limited

commerce_generate_po 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": {
    "commerce_generate_po": {
      "limits": [
        {
          "counter": "commerce_generate_po_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 Commerce-MCP, so you can run agents against it safely.

FAQ

Questions about commerce_generate_po

What does the commerce_generate_po tool do? +

commerce_generate_po. It is categorised as a Write tool in the Commerce-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 commerce_generate_po? +

Register the Commerce- MCP server in PolicyLayer and add a rule for commerce_generate_po: 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 Commerce-MCP. Nothing to install.

What risk level is commerce_generate_po? +

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

Can I rate-limit commerce_generate_po? +

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

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

commerce_generate_po is provided by the Commerce- MCP server (sinmb79/commerc-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.