Medium Risk

create_reverse

Create a reverse logistics (return) order

How to control create_reverse ↓

What create_reverse does on Mcp Ap2

AI agents use create_reverse to create or update resources in Mcp Ap2 — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mcp Ap2 environment.

Medium Risk

Why create_reverse needs a policy

This tool creates a new return order, which is a reversible write operation. It modifies the order/logistics system by adding a new reverse logistics record, but the action can be undone (the return can be cancelled or the order modified). While it exists in a payment-related server (AP2), it does not directly move money or commit financial obligations—it initiates a logistics/order management action.

From the tool's definition Tool name 'create_reverse' and description 'Create a reverse logistics (return) order' indicate creation of a new order record for return processing.

Documented attack patterns abuse exactly the kind of access create_reverse gives an agent:

How to control create_reverse

PolicyLayer is an MCP gateway — it sits between your AI agents and Mcp Ap2, and nothing reaches the server without passing your rules. This is the rule we recommend for create_reverse:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "create_reverse": {
      "limits": [
        {
          "counter": "create_reverse_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

create_reverse 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.

  1. Create a free account and register Mcp Ap2 — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

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Related tools and policies

Go deeper

Questions about create_reverse

What does the create_reverse tool do? +

Create a reverse logistics (return) order. It is categorised as a Write tool in the Mcp Ap2 MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on create_reverse? +

Register the Mcp Ap2 MCP server in PolicyLayer and add a rule for create_reverse: 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 Mcp Ap2. Nothing to install.

What risk level is create_reverse? +

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

Can I rate-limit create_reverse? +

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

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

create_reverse is provided by the Mcp Ap2 MCP server (@codespar/mcp-ap2). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Mcp Ap2 tool call.

Start from Mcp Ap2, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

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