# cart_add_coupons

Add coupons to cart

Agent View of the PolicyLayer registry record for `cart_add_coupons`. HTML page: https://policylayer.com/tools/jiantmo-mcp-commerce/cart-add-coupons

## Facts

- Tool: `cart_add_coupons`
- Server: MCP Dynamics 365 Commerce Server (`jiantmo/mcp-commerce`) — https://policylayer.com/tools/jiantmo-mcp-commerce.md
- Homepage: https://github.com/jiantmo/mcp-commerce
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "cart_add_coupons",
    "arguments": {}
  }
}
```

## 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 own 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."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches MCP Dynamics 365 Commerce Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "cart_add_coupons": {
      "limits": [
        {
          "counter": "cart_add_coupons_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on MCP Dynamics 365 Commerce Server (325)

- `cart_delete_entity` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-delete-entity.md
- `cart_remove_cart_lines` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-remove-cart-lines.md
- `example_delete_entity` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/example-delete-entity.md
- `operations_void_suspended_transactions` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/operations-void-suspended-transactions.md
- `product_lists_delete_entity` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/product-lists-delete-entity.md
- `product_lists_remove_product_list_lines` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/product-lists-remove-product-list-lines.md
- `products_remove_from_wishlist` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/products-remove-from-wishlist.md
- `shifts_delete_shifts` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/shifts-delete-shifts.md
- `shifts_force_delete` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/shifts-force-delete.md
- `shifts_void_suspended_carts` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/shifts-void-suspended-carts.md
- `stock_count_journal_remove_journal` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/stock-count-journal-remove-journal.md
- `stock_count_journal_remove_transaction` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/stock-count-journal-remove-transaction.md
- `stock_count_remove_line_by_line_id` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/stock-count-remove-line-by-line-id.md
- `stock_count_remove_line_by_product_rec_id` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/stock-count-remove-line-by-product-rec-id.md
- `tender_drop_create_transaction` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/tender-drop-create-transaction.md
- `transfer_order_delete_entity` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/transfer-order-delete-entity.md
- `transfer_order_delete_transfer_order_lines` — Destructive — https://policylayer.com/tools/jiantmo-mcp-commerce/transfer-order-delete-transfer-order-lines.md
- `cart_recalculate_order` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-recalculate-order.md
- `sales_orders_fulfillment_ship_fulfillment_lines` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/sales-orders-fulfillment-ship-fulfillment-lines.md
- `salesorder_checkin_for_order_pickup` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/salesorder-checkin-for-order-pickup.md
- `shifts_blind_close` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/shifts-blind-close.md
- `shifts_resume` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/shifts-resume.md
- `shifts_use` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/shifts-use.md
- `stock_count_journal_commit` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/stock-count-journal-commit.md
- `stock_count_journal_sync_transactions` — Execute — https://policylayer.com/tools/jiantmo-mcp-commerce/stock-count-journal-sync-transactions.md
- `cart_cashout_gift_card` — Financial — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-cashout-gift-card.md
- `cart_checkout` — Financial — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-checkout.md
- `cart_issue_gift_card` — Financial — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-issue-gift-card.md
- `cart_refill_gift_card` — Financial — https://policylayer.com/tools/jiantmo-mcp-commerce/cart-refill-gift-card.md
- `loyaltycard_redeem_points` — Financial — https://policylayer.com/tools/jiantmo-mcp-commerce/loyaltycard-redeem-points.md
- …and 295 more: https://policylayer.com/tools/jiantmo-mcp-commerce.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=jiantmo-mcp-commerce · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/jiantmo-mcp-commerce