schwab_cancel_all_stock_orders
Cancel all open equity orders for a Schwab account.
This record as markdown: /tools/open-agent-tools-open-stocks-mcp/schwab-cancel-all-stock-orders.md
What schwab_cancel_all_stock_orders does on Open Stocks MCP
AI agents call schwab_cancel_all_stock_orders 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_all_stock_orders is rated Critical
Canceling all open orders is a destructive action that cannot be undone and has immediate financial consequences. An AI agent misusing this tool could liquidate a user's entire pending order queue, resulting in unexecuted trades, missed market opportunities, and significant financial harm.
From the tool's definition Tool name contains 'cancel_all' and description states 'Cancel all open equity orders' — this irreversibly terminates all pending stock orders without qualification or undo capability.
Attacks that exploit this kind of access
The rule that runs schwab_cancel_all_stock_orders 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_all_stock_orders, this is the rule to start with:
schwab_cancel_all_stock_orders 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_all_stock_orders call is checked against it from then on.
Questions about schwab_cancel_all_stock_orders
Cancel all open equity orders for a Schwab account. 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_all_stock_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 Open Stocks MCP. Nothing to install.
schwab_cancel_all_stock_orders 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_all_stock_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.
Set action: deny in the PolicyLayer policy for schwab_cancel_all_stock_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.
schwab_cancel_all_stock_orders 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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