add_cash_transaction · Shopify Graphql MCP: Risk & Policy

WHAT IT DOES

What add_cash_transaction does on Shopify Graphql

AI agents use add_cash_transaction to commit financial operations through Shopify Graphql — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why add_cash_transaction needs a policy

This tool records/adds a cash transaction, which directly involves financial operations. Misuse could result in incorrect financial records, fraudulent transactions, or accounting discrepancies in a Shopify store's financial tracking session.

From the tool's definition Add a cash transaction to a tracking session

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

add_cash_transaction Approval-gated

Any call to add_cash_transaction is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_cash_transaction": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE 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 add_cash_transaction

What does the add_cash_transaction tool do? +

Add a cash transaction to a tracking session. It is categorised as a Financial tool in the Shopify Graphql MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on add_cash_transaction? +

Register the Shopify Graphql MCP server in PolicyLayer and add a rule for add_cash_transaction: 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 add_cash_transaction? +

add_cash_transaction is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit add_cash_transaction? +

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

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

add_cash_transaction 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.