Cancels an active limit, trailing, TWAP, or combo order. Once cancelled, the order is removed server-side and no further fills will arrive. WHEN TO USE: To kill an order before it triggers (e.g. you no longer want to take that position) or to halt remaining TWAP slices. WHAT IT DOES: Sends { action:
Part of the Trade Router server.
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AI agents may call cancel_order to permanently remove or destroy resources in Trade Router. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call cancel_order in a loop, permanently destroying resources in Trade Router. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"cancel_order"
]
}See the full Trade Router policy for all 21 tools.
These attack patterns abuse exactly the kind of access cancel_order gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Cancels an active limit, trailing, TWAP, or combo order. Once cancelled, the order is removed server-side and no further fills will arrive. WHEN TO USE: To kill an order before it triggers (e.g. you no longer want to take that position) or to halt remaining TWAP slices. WHAT IT DOES: Sends { action:. It is categorised as a Destructive tool in the Trade Router MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Trade Router 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 Trade Router. 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 Trade Router MCP server (@traderouter/trade-router-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 21 Trade Router tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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