cancelOrder · Aster Finance MCP Server MCP: Risk & Policy

WHAT IT DOES

What cancelOrder does on Aster Finance MCP Server

AI agents use cancelOrder to commit financial operations through Aster Finance MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why cancelOrder needs a policy

Cancelling an active order in a cryptocurrency futures trading context is a financial operation. It directly affects open positions and trading obligations on the Aster Finance exchange. Misuse could disrupt hedging strategies, leave positions exposed, or cause financial loss by removing protective or profit-taking orders.

From the tool's definition Cancel an active order

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

cancelOrder Approval-gated

Any call to cancelOrder is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "cancelOrder": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Aster Finance MCP Server, so you can run agents against it safely.

FAQ

Questions about cancelOrder

What does the cancelOrder tool do? +

Cancel an active order. It is categorised as a Financial tool in the Aster Finance MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on cancelOrder? +

Register the Aster Finance MCP Server MCP server in PolicyLayer and add a rule for cancelOrder: 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 Aster Finance MCP Server. Nothing to install.

What risk level is cancelOrder? +

cancelOrder is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit cancelOrder? +

Yes. Add a rate_limit block to the cancelOrder 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.

How do I block cancelOrder completely? +

Set action: deny in the PolicyLayer policy for cancelOrder. 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.

What MCP server provides cancelOrder? +

cancelOrder is provided by the Aster Finance MCP Server MCP server (questflowai/aster-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.