cart_rule_update · Voog MCP: Risk & Policy

WHAT IT DOES

What cart_rule_update does on Voog

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

WHY IT NEEDS A POLICY

Why cart_rule_update needs a policy

This tool modifies existing cart rule data reversibly. It is a Write operation because it updates/changes data without deletion. Severity is medium because misconfiguring cart rules could affect pricing, discounts, or promotional logic, impacting business operations and customer transactions, but the effect is reversible and contained to ecommerce rule configuration.

From the tool's definition Tool name 'cart_rule_update' and description 'Update a cart rule (PUT /admin/api/ecommerce/v1/cart_rules/' indicate a modification operation using HTTP PUT method.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cart_rule_update Rate-limited

cart_rule_update 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": {
    "cart_rule_update": {
      "limits": [
        {
          "counter": "cart_rule_update_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 Voog, so you can run agents against it safely.

FAQ

Questions about cart_rule_update

What does the cart_rule_update tool do? +

Update a cart rule (PUT /admin/api/ecommerce/v1/cart_rules/. It is categorised as a Write tool in the Voog MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on cart_rule_update? +

Register the Voog MCP server in PolicyLayer and add a rule for cart_rule_update: 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 Voog. Nothing to install.

What risk level is cart_rule_update? +

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

Can I rate-limit cart_rule_update? +

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

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

cart_rule_update is provided by the Voog MCP server (runnel/voog-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.