cart_add_coupons

Add coupons to cart

SERVERMCP Dynamics 365 Commerce Server SOURCEjiantmo/mcp-commerce

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jiantmo-mcp-commerce/cart-add-coupons.md

WHAT IT DOES

What cart_add_coupons does on MCP Dynamics 365 Commerce Server

AI agents use cart_add_coupons 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.

RISK

Why cart_add_coupons is rated Medium

This tool creates or modifies cart data by adding coupons, which is a reversible operation. It does not execute arbitrary code, delete data, or move money. While it could affect pricing calculations and order totals, the primary action is modifying cart contents, placing it in the Write category.

From the tool's definition Tool name 'cart_add_coupons' and description 'Add coupons to cart' indicate a create/modify operation on cart data. The action adds promotional coupons to a customer's cart, which modifies the cart state and potentially reduces the total price.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cart_add_coupons safely

PolicyLayer is an MCP gateway: it sits between your AI agents and MCP Dynamics 365 Commerce Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cart_add_coupons, this is the rule to start with:

cart_add_coupons Rate-limited

cart_add_coupons 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_add_coupons": {
      "limits": [
        {
          "counter": "cart_add_coupons_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect MCP Dynamics 365 Commerce Server, apply this rule, and every cart_add_coupons call is checked against it from then on.

FAQ

Questions about cart_add_coupons

What does the cart_add_coupons tool do? +

Add coupons to cart. 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_add_coupons? +

Register the MCP Dynamics 365 Commerce Server MCP server in PolicyLayer and add a rule for cart_add_coupons: 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_add_coupons? +

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

Can I rate-limit cart_add_coupons? +

Yes. Add a rate_limit block to the cart_add_coupons 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_add_coupons completely? +

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

cart_add_coupons 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.

KEEP EXPLORING

More on MCP Dynamics 365 Commerce Server, and thousands of servers like it.

This server

All 326 MCP Dynamics 365 Commerce Server tools →

Across the catalogue

add-tag on Kanban MCP Server →kb_add on Persistent Kb → The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →