取消订单。orderId 缺省时取消最近一单。
AI agents call cancelOrder to permanently remove resources in Luckin Mcp Proxy — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Order cancellation is destructive because it irreversibly removes/cancels an order record and its associated transaction state. This cannot be easily reversed without manual intervention. While not directly financial (no money movement), it has significant business impact by eliminating commitments. Destructive is more severe than Write since cancellations typically cannot be undone programmatically.
From the tool's definition Tool name 'cancelOrder' and Chinese description '取消订单' (cancel order) indicates irreversible cancellation of an order. The operation cannot be undone—once an order is cancelled, it is deleted from active orders.
Attacks that exploit this kind of access
取消订单。orderId 缺省时取消最近一单。. It is categorised as a Destructive tool in the Luckin Mcp Proxy MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Luckin Mcp Proxy MCP server in PolicyLayer and add a rule for cancelOrder: 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 Luckin Mcp Proxy. Nothing to install.
cancelOrder is a Destructive 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 cancelOrder 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 cancelOrder. 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.
cancelOrder is provided by the Luckin Mcp Proxy MCP server (wyhacc/luckin-mcp-proxy). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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