ibkr_global_cancel

THE RISK

Critical Risk

Why ibkr_global_cancel needs a policy

Canceling all active orders is a destructive operation that cannot be undone and has immediate financial consequences. It irreversibly terminates trading positions and commitments. While requiring confirm=true provides a safeguard, the tool itself performs an irreversible action affecting potentially significant financial positions.

From the tool's definition Tool name 'ibkr_global_cancel' and description 'Cancel all active IBKR orders' indicate irreversible termination of multiple standing orders.

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

POLICY

How to control ibkr_global_cancel

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

policy.json

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

ibkr_global_cancel 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 Ibkr — 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

More Ibkr tools

Financial ibkr_cancel_order Cancel a single IBKR order by orderId. Requires confirm=true. Financial ibkr_exercise_options Exercise or lapse an options contract. Requires confirm=true. Financial ibkr_place_order Place an IBKR order. Defaults to dry_run=true and transmit=false for safety. Execute ibkr_preview_order Run IBKR what-if analysis for an order and return margin/commission impact. Execute ibkr_run_scanner Run a market scanner subscription and return ranked results. Read ibkr_debug_market_data_snapshot Return diagnostic market data snapshots for a contract. Read ibkr_get_account_summary Return account summary values such as NetLiquidation and BuyingPower. Read ibkr_get_account_values Return account values snapshot for the specified account.

All 33 Ibkr tools →

Destructive tools on other servers

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Go deeper

Critical-risk tools in Ibkr → 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 ibkr_global_cancel

What does the ibkr_global_cancel tool do? +

Cancel all active IBKR orders. Requires confirm=true. It is categorised as a Destructive tool in the Ibkr 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 ibkr_global_cancel? +

Register the Ibkr MCP server in PolicyLayer and add a rule for ibkr_global_cancel: 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 Ibkr. Nothing to install.

What risk level is ibkr_global_cancel? +

ibkr_global_cancel 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 ibkr_global_cancel? +

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

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

ibkr_global_cancel is provided by the Ibkr MCP server (patrickpxp/ibkr-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Ibkr tool call.

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

CHECK YOUR STACK →