cancel_stock_order_by_id

Cancels a specific stock order.

SERVEROpen Stocks MCP SOURCEopen-agent-tools/open-stocks-mcp

Critical RISK CLASS

Category Destructive

Parameters 00 required

Recommended Hiddensee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/open-agent-tools-open-stocks-mcp/cancel-stock-order-by-id.md

WHAT IT DOES

What cancel_stock_order_by_id does on Open Stocks MCP

AI agents call cancel_stock_order_by_id to permanently remove resources in Open Stocks MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

RISK

Why cancel_stock_order_by_id is rated Critical

Cancelling a stock order is an irreversible action: once cancelled, the order cannot be reinstated and the market opportunity is permanently lost. This is a destructive operation with high severity given it operates within a live trading context via broker APIs (Robinhood, Schwab), where an AI agent misusing this tool could disrupt investment strategies or cause financial harm.

From the tool's definition cancel_stock_order_by_id — 'Cancels a specific stock order'

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs cancel_stock_order_by_id safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Open Stocks MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For cancel_stock_order_by_id, this is the rule to start with:

cancel_stock_order_by_id Hidden

cancel_stock_order_by_id is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.

View as policy code

policy.json

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

RESTRICT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Open Stocks MCP, apply this rule, and every cancel_stock_order_by_id call is checked against it from then on.

FAQ

Questions about cancel_stock_order_by_id

What does the cancel_stock_order_by_id tool do? +

Cancels a specific stock order. It is categorised as a Destructive tool in the Open Stocks MCP 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_stock_order_by_id? +

Register the Open Stocks MCP server in PolicyLayer and add a rule for cancel_stock_order_by_id: 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 Open Stocks MCP. Nothing to install.

What risk level is cancel_stock_order_by_id? +

cancel_stock_order_by_id 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_stock_order_by_id? +

Yes. Add a rate_limit block to the cancel_stock_order_by_id 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_stock_order_by_id completely? +

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

cancel_stock_order_by_id is provided by the Open Stocks MCP server (open-agent-tools/open-stocks-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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