cancel_all_orders_after

THE RISK

Critical Risk

Why cancel_all_orders_after needs a policy

This tool affects all open financial orders on a live trading platform (Kraken Pro). Mass-cancelling orders can have significant financial consequences — exposing positions, missing hedges, or triggering market impact — making it a Financial category tool. The blast radius is critical because it acts on ALL orders simultaneously, not just a single order, and operates on a real exchange with real money.

From the tool's definition Dead man's switch: set countdown to cancel ALL your orders after `timeout_seconds`

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

POLICY

How to control cancel_all_orders_after

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

policy.json

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

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

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

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EXPLORE

Related tools and policies

More Kraken Pro MCP tools

Financial amend_order Atomic amend in-place (keeps identifiers & queue priority where possible). Financial add_order Place a new Kraken Spot order (REST AddOrder). Destructive cancel_order Cancel a particular open order (or set of orders). Read account_balance Get Account Balance: all cash balances, net of pending withdrawals. Read asset_info Asset metadata. Example assets: 'XBT,ETH,USDT' Read closed_orders closed_orders Read ohlc OHLC candles. Read order_book L2 order book (aggregated per price level).

All 17 Kraken Pro MCP tools →

Financial tools on other servers

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Go deeper

Critical-risk tools in Kraken Pro MCP → 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.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →

FAQ

Questions about cancel_all_orders_after

What does the cancel_all_orders_after tool do? +

Dead man's switch: set countdown to cancel ALL your orders after timeout_seconds. It is categorised as a Financial tool in the Kraken Pro MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on cancel_all_orders_after? +

Register the Kraken Pro MCP server in PolicyLayer and add a rule for cancel_all_orders_after: 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 Kraken Pro MCP. Nothing to install.

What risk level is cancel_all_orders_after? +

cancel_all_orders_after 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 cancel_all_orders_after? +

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

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

cancel_all_orders_after is provided by the Kraken Pro MCP server (oilst/kraken-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Kraken Pro MCP tool call.

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

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