AI agents call get_national_average_price to retrieve information from Opinet without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves existing fuel price data (national averages) with no side effects, no data modification, no execution of external commands, and no financial transactions. It is a straightforward read-only API query. The low severity reflects minimal blast radius—returning incorrect price data causes no irreversible harm or financial impact.
From the tool's definition Tool name includes 'get_' prefix and description states '조회합니다' (retrieve/query); the function retrieves current national average fuel prices from Opinet without modifying, deleting, or executing operations.
Attacks that exploit this kind of access
오피넷에 게시되고 있는 전국 주유소의 현재 제품별 평균가격을 조회합니다. It is categorised as a Read tool in the Opinet MCP Server, which means it retrieves data without modifying state.
Register the Opinet MCP server in PolicyLayer and add a rule for get_national_average_price: 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 Opinet. Nothing to install.
get_national_average_price 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_national_average_price 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_national_average_price. 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_national_average_price is provided by the Opinet MCP server (kimjintak/opinet-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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