open_order · Shopify Graphql MCP: Risk & Policy

WHAT IT DOES

What open_order does on Shopify Graphql

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

WHY IT NEEDS A POLICY

Why open_order needs a policy

This tool modifies existing order data by changing its status from closed to open. This is a Write operation because it creates a state change that is reversible (the order can be closed again). It does not delete data (not Destructive), execute arbitrary code (not Execute), or move money (not Financial).

From the tool's definition Tool description states 'Reopen a closed order' - this modifies the state of an order from closed to open, a reversible change to order data in Shopify.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

open_order Rate-limited

open_order 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": {
    "open_order": {
      "limits": [
        {
          "counter": "open_order_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 Shopify Graphql, so you can run agents against it safely.

FAQ

Questions about open_order

What does the open_order tool do? +

Reopen a closed order. It is categorised as a Write tool in the Shopify Graphql MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on open_order? +

Register the Shopify Graphql MCP server in PolicyLayer and add a rule for open_order: 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 Shopify Graphql. Nothing to install.

What risk level is open_order? +

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

Can I rate-limit open_order? +

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

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

open_order is provided by the Shopify Graphql MCP server (uvu-store/shopify-graphql-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.