schwab_cancel_option_order
Cancel a specific option order.
This record as markdown: /tools/open-agent-tools-open-stocks-mcp/schwab-cancel-option-order.md
What schwab_cancel_option_order does on Open Stocks MCP
AI agents call schwab_cancel_option_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.
Why schwab_cancel_option_order is rated Critical
Cancelling an option order is an irreversible action that permanently terminates a live financial order. While it doesn't move money directly, cancelling an order cannot be undone — the order is gone and market conditions may have changed, making it impossible to restore the original order state. This falls under Destructive due to its irreversible nature, though it borders on Financial given the trading context.
From the tool's definition Cancel a specific option order
Attacks that exploit this kind of access
The rule that runs schwab_cancel_option_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_option_order, this is the rule to start with:
schwab_cancel_option_order is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect Open Stocks MCP, apply this rule, and every schwab_cancel_option_order call is checked against it from then on.
Questions about schwab_cancel_option_order
Cancel a specific option 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.
Register the Open Stocks MCP server in PolicyLayer and add a rule for schwab_cancel_option_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.
schwab_cancel_option_order is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the schwab_cancel_option_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.
Set action: deny in the PolicyLayer policy for schwab_cancel_option_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.
schwab_cancel_option_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.
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