Redeem points from a loyalty card
AI agents use loyaltycard_redeem_points to commit financial operations through MCP Dynamics 365 Commerce Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.
Redeeming loyalty points is a financial operation: it depletes a customer's loyalty balance (monetary-equivalent value) and typically triggers discounts, rewards, or credits. This falls under Financial as it moves or commits financial obligations. Misuse could drain customer loyalty balances or apply unauthorized redemptions, warranting high severity.
From the tool's definition 'Redeem points from a loyalty card' — redeeming loyalty points commits a financial obligation by consuming stored value/rewards currency from a customer's account, an action that is not easily reversible.
Attacks that exploit this kind of access
Redeem points from a loyalty card. It is categorised as a Financial tool in the MCP Dynamics 365 Commerce Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the MCP Dynamics 365 Commerce Server MCP server in PolicyLayer and add a rule for loyaltycard_redeem_points: 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.
loyaltycard_redeem_points is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the loyaltycard_redeem_points 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 loyaltycard_redeem_points. 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.
loyaltycard_redeem_points 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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