AI agents call get_investor_trend 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 and queries historical investor trading trend data (foreign investor, institutional, and individual net purchases). It has no capability to modify, delete, execute code, or perform financial transactions—it only reads and filters existing market data. The constraint to the top 100 trading volume stocks further confirms it is a data retrieval function.
From the tool's definition Tool name 'get_investor_trend' and description describing '투자자별 매매동향 조회' (investor trading trend inquiry) with retrieval of 'foreign investor/institutional/individual net purchases'.
Attacks that exploit this kind of access
투자자별 매매동향 조회 (외국인/기관/개인 순매수). 키움 API 제약으로 당일 거래량 상위 100종목만 조회 가능. 종목코드 입력 시 해당 종목 필터링 시도. 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_investor_trend: 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_investor_trend 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_investor_trend 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_investor_trend. 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_investor_trend 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.
Teams ship this data inside their own products. See what a licence covers →