특정 품목의 전국 도매시장 가격을 비교합니다. Args: product_keyword: 품목 키워드 (예: "사과", "딸기", "배추") date: 정산일 (YYYY-MM-DD). 빈 문자열이면 오늘. Returns: 전국 시장별 가격 비교 (평균가, 최고가, 최저가, 거래량)
Part of the Korean Agriculture Market Data server.
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AI agents call compare_market_prices to retrieve information from Korean Agriculture Market Data without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though compare_market_prices only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"compare_market_prices": {}
}
}See the full Korean Agriculture Market Data policy for all 6 tools.
These attack patterns abuse exactly the kind of access compare_market_prices gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
특정 품목의 전국 도매시장 가격을 비교합니다. Args: product_keyword: 품목 키워드 (예: "사과", "딸기", "배추") date: 정산일 (YYYY-MM-DD). 빈 문자열이면 오늘. Returns: 전국 시장별 가격 비교 (평균가, 최고가, 최저가, 거래량). It is categorised as a Read tool in the Korean Agriculture Market Data MCP Server, which means it retrieves data without modifying state.
Register the Korean Agriculture Market Data MCP server in PolicyLayer and add a rule for compare_market_prices: 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 Korean Agriculture Market Data. Nothing to install.
compare_market_prices 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 compare_market_prices 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 compare_market_prices. 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.
compare_market_prices is provided by the Korean Agriculture Market Data MCP server (https://korean-agriculture-mcp.onrender.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 6 Korean Agriculture Market Data tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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