place_order · Shioaji MCP Server MCP: Risk & Policy

WHAT IT DOES

What place_order does on Shioaji MCP Server

AI agents use place_order to commit financial operations through Shioaji MCP Server — usually the final step of a payment, billing, or trading workflow. A call moves real money.

WHY IT NEEDS A POLICY

Why place_order needs a policy

This tool directly places financial trading orders through the SinoPac Securities Shioaji trading API. Placing orders commits real financial obligations by buying or selling securities, making this Financial category. The severity is critical because an AI agent misusing this tool could execute unintended trades, resulting in significant financial losses.

From the tool's definition Place a trading order

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

place_order Approval-gated

Any call to place_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": {
    "place_order": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Shioaji MCP Server, so you can run agents against it safely.

FAQ

Questions about place_order

What does the place_order tool do? +

Place a trading order (requires SHIOAJI_TRADING_ENABLED=true). It is categorised as a Financial tool in the Shioaji MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on place_order? +

Register the Shioaji MCP Server MCP server in PolicyLayer and add a rule for place_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 Shioaji MCP Server. Nothing to install.

What risk level is place_order? +

place_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 place_order? +

Yes. Add a rate_limit block to the place_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 place_order completely? +

Set action: deny in the PolicyLayer policy for place_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 place_order? +

place_order is provided by the Shioaji MCP Server MCP server (offbeat-studio/shioaji-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.