cart_remove_discount_codes

WHAT IT DOES

What cart_remove_discount_codes does on MCP Dynamics 365 Commerce Server

AI agents use cart_remove_discount_codes to create or update resources in MCP Dynamics 365 Commerce Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your MCP Dynamics 365 Commerce Server environment.

WHY IT NEEDS A POLICY

Why cart_remove_discount_codes needs a policy

Removing discount codes modifies the cart state by undoing a previously applied discount, but this is reversible (discount codes can be re-applied). It falls under Write as it mutates cart data without being truly irreversible or financial in nature.

From the tool's definition 'Remove discount codes' — removes applied discount codes from a cart

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cart_remove_discount_codes Rate-limited

cart_remove_discount_codes 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_remove_discount_codes": {
      "limits": [
        {
          "counter": "cart_remove_discount_codes_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 MCP Dynamics 365 Commerce Server, so you can run agents against it safely.

FAQ

Questions about cart_remove_discount_codes

What does the cart_remove_discount_codes tool do? +

Remove discount codes. It is categorised as a Write tool in the MCP Dynamics 365 Commerce Server 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_remove_discount_codes? +

Register the MCP Dynamics 365 Commerce Server MCP server in PolicyLayer and add a rule for cart_remove_discount_codes: 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 Dynamics 365 Commerce Server. Nothing to install.

What risk level is cart_remove_discount_codes? +

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

Can I rate-limit cart_remove_discount_codes? +

Yes. Add a rate_limit block to the cart_remove_discount_codes 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_remove_discount_codes completely? +

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

cart_remove_discount_codes is provided by the MCP Dynamics 365 Commerce Server MCP server (jiantmo/mcp-commerce). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.