AI agents call get_orderbook to retrieve information from Liquidiction without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool retrieves and queries live order book data from the Hyperliquid prediction market. This is a passive data retrieval operation with no side effects—it does not create orders, execute trades, modify positions, delete data, or commit financial transactions. It belongs in the Read category.
From the tool's definition Tool name 'get_orderbook' and description 'Get order book for a specific outcome side' indicate read-only retrieval of market data with no modification, execution, or financial transaction capability.
Documented attack patterns abuse exactly the kind of access get_orderbook gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Liquidiction, and nothing reaches the server without passing your rules. This is the rule we recommend for get_orderbook:
{
"version": "1",
"default": "deny",
"tools": {
"get_orderbook": {}
}
}get_orderbook is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get order book for a specific outcome side. It is categorised as a Read tool in the Liquidiction MCP Server, which means it retrieves data without modifying state.
Register the Liquidiction MCP server in PolicyLayer and add a rule for get_orderbook: 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 Liquidiction. Nothing to install.
get_orderbook is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the get_orderbook 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 get_orderbook. 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.
get_orderbook is provided by the Liquidiction MCP server (liquidiction/liquidiction-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Liquidiction, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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10 Liquidiction tools catalogued and risk-classified — across an index of 43,000+ MCP servers.