Add invoiced sales lines to cart
AI agents use cart_add_invoiced_sales_lines_to_cart 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.
This tool modifies cart data by appending invoiced sales lines. While reversible (items can be removed), it affects transaction state and inventory allocation in an e-commerce system. Unauthorized or erroneous use could manipulate customer orders, create unwanted charges, or bypass sales controls.
From the tool's definition Tool name explicitly states 'add...to cart' — a modification operation. Description confirms it adds invoiced sales lines, which creates or alters cart state reversibly.
Attacks that exploit this kind of access
Add invoiced sales lines 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.
Register the MCP Dynamics 365 Commerce Server MCP server in PolicyLayer and add a rule for cart_add_invoiced_sales_lines_to_cart: 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.
cart_add_invoiced_sales_lines_to_cart is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the cart_add_invoiced_sales_lines_to_cart 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.
Set action: deny in the PolicyLayer policy for cart_add_invoiced_sales_lines_to_cart. 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.
cart_add_invoiced_sales_lines_to_cart 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.
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