Return PER, PBR, EPS, BPS, ROE and dividend yield for a ticker.
AI agents call get_fundamentals to retrieve information from Kookmin Stock without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and returns stock fundamental financial ratios and metrics. It performs a read-only query operation with no side effects, data modification, code execution, or financial transactions. The data returned (price-to-earnings ratio, price-to-book ratio, earnings per share, book value per share, return on equity, and dividend yield) are standard public financial indicators.
From the tool's definition Tool name 'get_fundamentals' and description 'Return PER, PBR, EPS, BPS, ROE and dividend yield for a ticker' indicate retrieval of financial metrics with no modification of data or execution of operations.
Attacks that exploit this kind of access
Return PER, PBR, EPS, BPS, ROE and dividend yield for a ticker. It is categorised as a Read tool in the Kookmin Stock MCP Server, which means it retrieves data without modifying state.
Register the Kookmin Stock MCP server in PolicyLayer and add a rule for get_fundamentals: 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 Kookmin Stock. Nothing to install.
get_fundamentals 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_fundamentals 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_fundamentals. 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_fundamentals is provided by the Kookmin Stock MCP server (jooseunghyeon/kookmin-university-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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