schwab_replace_order

Replace (modify) an existing Schwab order.

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

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/open-agent-tools-open-stocks-mcp/schwab-replace-order.md

WHAT IT DOES

What schwab_replace_order does on Open Stocks MCP

AI agents use schwab_replace_order to commit financial operations through Open Stocks MCP, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why schwab_replace_order is rated Critical

Modifying an existing brokerage order is a financial operation that can alter the price, quantity, or type of a trade, committing or changing financial obligations. Misuse could result in unintended trades at wrong prices or quantities, making this critical severity.

From the tool's definition Replace (modify) an existing Schwab order — modifies a live brokerage order on Schwab, directly affecting financial trades

Attacks that exploit this kind of access

RECOMMENDED RULE

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

schwab_replace_order Approval-gated

Any call to schwab_replace_order is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "schwab_replace_order": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE 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_replace_order call is checked against it from then on.

FAQ

Questions about schwab_replace_order

What does the schwab_replace_order tool do? +

Replace (modify) an existing Schwab order. It is categorised as a Financial tool in the Open Stocks MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on schwab_replace_order? +

Register the Open Stocks MCP server in PolicyLayer and add a rule for schwab_replace_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_replace_order? +

schwab_replace_order is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit schwab_replace_order? +

Yes. Add a rate_limit block to the schwab_replace_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_replace_order completely? +

Set action: deny in the PolicyLayer policy for schwab_replace_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_replace_order? +

schwab_replace_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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