batch_cancel_order

THE RISK

Critical Risk

Why batch_cancel_order needs a policy

Canceling orders is a destructive operation that cannot be undone—once canceled, orders are removed from the market and cannot be restored to their previous state. This is irreversible data/state destruction in a financial context. Combined with batch capability (canceling multiple orders at once), the blast radius is significantly amplified.

From the tool's definition Tool name 'batch_cancel_order' and description 'Cancel multiple existing orders in a single request' directly indicates irreversible cancellation of financial orders. The ability to cancel 'multiple' orders in batch amplifies the destructive impact.

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

POLICY

How to control batch_cancel_order

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 batch_cancel_order:

policy.json

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

batch_cancel_order 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 →

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EXPLORE

Related tools and policies

More Bybit MCP Server tools

Financial place_order Place a new trading order on Bybit. ⚠️ EXECUTES REAL TRADES WITH REAL MONEY when trading i Financial place_trigger_order Place a conditional/trigger order that executes only when market price reaches your trigge Financial batch_place_order Place multiple orders in a single request. More efficient than placing orders individually Financial batch_amend_order Modify multiple existing orders in a single request. More efficient than amending orders i Financial set_trading_stop Set take profit and stop loss orders for an existing position. These orders automatically Destructive cancel_all_orders Cancel all pending orders for a category or specific symbol. Use with caution as this canc Destructive cancel_order Cancel a single pending order immediately. ⚠️ Only works on orders that haven Execute set_leverage Set leverage for a trading position. Higher leverage amplifies both profits and losses. Us

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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 →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about batch_cancel_order

What does the batch_cancel_order tool do? +

Cancel multiple existing orders in a single request. More efficient than canceling orders individually. All orders must be in the same category. 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 batch_cancel_order? +

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

What risk level is batch_cancel_order? +

batch_cancel_order 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 batch_cancel_order? +

Yes. Add a rate_limit block to the batch_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.

How do I block batch_cancel_order completely? +

Set action: deny in the PolicyLayer policy for batch_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.

What MCP server provides batch_cancel_order? +

batch_cancel_order is provided by the Bybit MCP Server MCP server (bcusack/bybit-py-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.

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