AI agents call get_filled_orders 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 retrieves historical transaction records from a user's account. While it is read-only and poses no direct data modification risk, it exposes sensitive financial transaction history including order execution details, quantities, prices, and timing. Unauthorized access could reveal trading patterns, portfolio composition, and market activity timing.
From the tool's definition Tool name 'get_filled_orders' and description '체결 내역 조회 (종목코드 미입력 시 전체 조회)' ("Query filled orders / view all if stock code not entered") indicate retrieval of historical order execution data. Server description explicitly states 'read-only access'.
Attacks that exploit this kind of access
체결 내역 조회 (종목코드 미입력 시 전체 조회). 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_filled_orders: 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_filled_orders 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_filled_orders 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_filled_orders. 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_filled_orders 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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