cancelAllOrders

THE RISK

Critical Risk

Why cancelAllOrders needs a policy

Cancelling orders is irreversible in the sense that the orders are permanently removed. A bulk cancellation ('all orders') has a high blast radius as it could cancel all active trading positions simultaneously, disrupting trading strategies and potentially causing financial harm.

From the tool's definition 'Cancel all open orders' — cancels all open orders matching specified criteria, which is an irreversible bulk action that cannot be undone

Documented attack patterns abuse exactly the kind of access cancelAllOrders gives an agent:

POLICY

How to control cancelAllOrders

PolicyLayer is an MCP gateway — it sits between your AI agents and Bybit MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for cancelAllOrders:

policy.json

{
  "version": "1",
  "default": "deny",
  "hide": [
    "cancelAllOrders"
  ]
}

cancelAllOrders disappears from the agent's tool list entirely, and any attempt to call it is denied. The rest of the server keeps working.

Create a free account and register Bybit MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RESTRICT THIS TOOL →

Free to start. No card required.

EXPLORE

Related tools and policies

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Go deeper

Critical-risk tools in Bybit MCP Server → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Blast radius → How much damage one compromised or confused agent can do — and how to bound it.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about cancelAllOrders

What does the cancelAllOrders tool do? +

Cancel all open orders matching the specified criteria.\n\n- For linear/inverse: must provide at least. It is categorised as a Destructive tool in the Bybit MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.

How do I enforce a policy on cancelAllOrders? +

Register the Bybit MCP Server MCP server in PolicyLayer and add a rule for cancelAllOrders: 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 Bybit MCP Server. Nothing to install.

What risk level is cancelAllOrders? +

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

Can I rate-limit cancelAllOrders? +

Yes. Add a rate_limit block to the cancelAllOrders 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 cancelAllOrders completely? +

Set action: deny in the PolicyLayer policy for cancelAllOrders. 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 cancelAllOrders? +

cancelAllOrders is provided by the Bybit MCP Server MCP server (bybit-exchange/trading-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Bybit MCP Server tool call.

Start from Bybit MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →