Cancel a Pear Protocol TWAP (time-weighted average price) order and all of its remaining unfilled chunks. WRITE: cancels a live order. Requires PEAR_TRADE_ENABLED=true.
AI agents call cancel_twap_order to permanently remove resources in Mcp Pear — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling a TWAP order terminates all remaining unfilled chunks of a live trading order, which is irreversible — those scheduled order slices cannot be reinstated once cancelled. While the tool description labels it 'WRITE', the action is effectively irreversible (the cancelled chunks are permanently gone), placing it in the Destructive category.
From the tool's definition Cancel a Pear Protocol TWAP (time-weighted average price) order and all of its remaining unfilled chunks. WRITE: cancels a live order.
Attacks that exploit this kind of access
Cancel a Pear Protocol TWAP (time-weighted average price) order and all of its remaining unfilled chunks. WRITE: cancels a live order. Requires PEAR_TRADE_ENABLED=true. It is categorised as a Destructive tool in the Mcp Pear MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Mcp Pear MCP server in PolicyLayer and add a rule for cancel_twap_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 Mcp Pear. Nothing to install.
cancel_twap_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_twap_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_twap_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_twap_order is provided by the Mcp Pear MCP server (marvelnwachukwu/mcp-pear). 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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