Cancel an active order by orderId or origClientOrderId.
AI agents call bn_cancel_order to permanently remove resources in Node2flow/binance — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling an order is an irreversible action — once cancelled, the order cannot be reinstated. This permanently removes an active trading order from the exchange, making it Destructive. The blast radius is high because an AI agent misusing this tool could cancel legitimate open orders, disrupting trading strategies or financial positions.
From the tool's definition Cancel an active order by orderId or origClientOrderId
Attacks that exploit this kind of access
Cancel an active order by orderId or origClientOrderId. It is categorised as a Destructive tool in the Node2flow/binance MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Node2flow/binance MCP server in PolicyLayer and add a rule for bn_cancel_order: 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 Node2flow/binance. Nothing to install.
bn_cancel_order 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 bn_cancel_order 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 bn_cancel_order. 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.
bn_cancel_order is provided by the Node2flow/binance MCP server (node2flow-th/binance-mcp-community). 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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