cancel_all_account_orders

THE RISK

Critical Risk

Why cancel_all_account_orders needs a policy

Cancelling all orders in bulk is an irreversible action that cannot be undone. Once orders are cancelled, they cannot be reinstated; new orders would need to be created. The blast radius is high because this affects every open order across an entire trading account simultaneously, which could cause significant financial impact if an AI agent misuses it (e.g., cancelling all protective stop-loss orders).

From the tool's definition 'Cancel all orders for an account' — cancels ALL orders irreversibly for an entire account

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

POLICY

How to control cancel_all_account_orders

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

policy.json

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

cancel_all_account_orders 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 Paper 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

More Paper MCP Server tools

Financial freeze_account Freeze a trading account Financial upgrade_to_margin Upgrade portfolio to margin account Financial create_batch_orders Create multiple orders at once Financial create_order Create a new trading order Destructive cancel_order Cancel an existing order Destructive reset_portfolio Reset portfolio to initial state Write create_portfolio Create a new portfolio Write update_account Update account details

All 23 Paper MCP Server tools →

Destructive tools on other servers

Android Forensics ADB MCP Server create_full_backup 0xarchive web3_revoke_key Frida Game Hacking MCP clear_scan cPanel MCP Server clear_spam_box

Go deeper

Critical-risk tools in Paper 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 cancel_all_account_orders

What does the cancel_all_account_orders tool do? +

Cancel all orders for an account. It is categorised as a Destructive tool in the Paper 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 cancel_all_account_orders? +

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

What risk level is cancel_all_account_orders? +

cancel_all_account_orders 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 cancel_all_account_orders? +

Yes. Add a rate_limit block to the cancel_all_account_orders 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_account_orders completely? +

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

cancel_all_account_orders is provided by the Paper MCP Server MCP server (paperinvest/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 Paper MCP Server tool call.

Start from Paper 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 →