Cancel a pending order.
AI agents call cancel_order to permanently remove resources in MetaTrader 5 MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Canceling a pending order is a destructive action that irreversibly removes an active order from the market. While not a delete operation in the database sense, it permanently terminates a financial instruction that cannot be automatically restored.
From the tool's definition Tool name 'cancel_order' combined with description 'Cancel a pending order' indicates irreversible termination of a financial order.
Attacks that exploit this kind of access
Cancel a pending order. It is categorised as a Destructive tool in the MetaTrader 5 MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the MetaTrader 5 MCP Server MCP server in PolicyLayer and add a rule for 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 MetaTrader 5 MCP Server. Nothing to install.
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 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 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.
cancel_order is provided by the MetaTrader 5 MCP Server MCP server (jorgearturoyap-debug/metatrader-5-for-chatgpt-desktop). 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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