place_order · Hyperliquid MCP Server MCP: Risk & Policy

WHAT IT DOES

What place_order does on Hyperliquid MCP Server

AI agents use place_order to commit financial operations through Hyperliquid 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

Placing an order on a decentralized exchange directly commits financial obligations by submitting buy/sell orders that can result in trades and movement of funds. Even though the description is empty, the tool name combined with the server's explicit trading context and sibling tools (cancel_order, adjust_leverage) makes it unambiguous that this tool executes financial transactions.

From the tool's definition Tool name 'place_order' on a server described as enabling 'natural language trading' and 'strategy automation' on 'Hyperliquid decentralized exchange'; sibling tools include 'adjust_leverage', 'cancel_order', confirming financial trading context.

Attacks that exploit this kind of access

Questions about place_order

What does the place_order tool do? +

place_order. It is categorised as a Financial tool in the Hyperliquid 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 Hyperliquid 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 Hyperliquid 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 Hyperliquid MCP Server MCP server (jhonatanpinheiro/hyperliquid-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.