AI agents call get_orderbook to retrieve information from Kiwoom without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries orderbook data (bid/ask quotes and volumes at different price levels), which is purely informational retrieval with no side effects, state changes, or ability to execute trades. It fits the Read category as a data lookup operation.
From the tool's definition Tool name 'get_orderbook' and description '주식 호가 조회 (매도/매수 1~10호가, 잔량)' [stock orderbook inquiry (sell/buy 1-10 quotes, remaining quantities)] indicate retrieval of market data without modification.
Attacks that exploit this kind of access
주식 호가 조회 (매도/매수 1~10호가, 잔량). It is categorised as a Read tool in the Kiwoom MCP Server, which means it retrieves data without modifying state.
Register the Kiwoom 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 Kiwoom. 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 Kiwoom MCP server (java-jaydev/kiwoom-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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