Cancel a limit order bet
AI agents call cancel_bet to permanently remove resources in Manifold — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Cancelling a limit order bet is an irreversible action that removes an existing order from the market. Once cancelled, the specific bet placement is undone and cannot be restored to its original state, making it destructive in nature. Severity is medium as it affects only a single bet/order rather than broad financial exposure.
From the tool's definition cancel_bet - 'Cancel a limit order bet'
Attacks that exploit this kind of access
Cancel a limit order bet. It is categorised as a Destructive tool in the Manifold MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Manifold MCP server in PolicyLayer and add a rule for cancel_bet: 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 Manifold. Nothing to install.
cancel_bet 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_bet 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_bet. 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_bet is provided by the Manifold MCP server (manifold-mcp-server). 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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