schwab_cancel_order

Cancel a specific Schwab 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/schwab-cancel-order.md

WHAT IT DOES

What schwab_cancel_order does on Open Stocks MCP

AI agents call schwab_cancel_order 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 schwab_cancel_order is rated Critical

Canceling an order is an irreversible action that terminates a pending financial transaction. Once canceled, the order state cannot be restored without manual intervention by the user. This is a destructive operation on financial data.

From the tool's definition Tool name 'schwab_cancel_order' and description 'Cancel a specific Schwab order' indicate irreversible cancellation of a financial order.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs schwab_cancel_order 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 schwab_cancel_order, this is the rule to start with:

schwab_cancel_order Hidden

schwab_cancel_order 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": [
    "schwab_cancel_order"
  ]
}

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 schwab_cancel_order call is checked against it from then on.

FAQ

Questions about schwab_cancel_order

What does the schwab_cancel_order tool do? +

Cancel a specific Schwab 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 schwab_cancel_order? +

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

What risk level is schwab_cancel_order? +

schwab_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 schwab_cancel_order? +

Yes. Add a rate_limit block to the schwab_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 schwab_cancel_order completely? +

Set action: deny in the PolicyLayer policy for schwab_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 schwab_cancel_order? +

schwab_cancel_order 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.

KEEP EXPLORING

More on Open Stocks, and thousands of servers like it.

This server

All 152 Open Stocks tools → Critical-risk tools on this server →

Across the catalogue

cancel_order on Lighter MCP →sms_cancel_scheduled on Twilio SMS MCP Server → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern database agents →Blast radius →Tool call approval →