KSIC 코드 prefix로 매핑된 NTS 업종코드를 모두 반환합니다. prefix 길이에 따라 분류수준 자동 식별: 1자리 영문(B/C/M 등)=대분류, 2자리=중분류, 3자리=소분류, 4자리=세분류, 5자리=세세분류. 예: 681(부동산임대업), 4791(통신판매업), 7421(청소업). lookup_ksic_code(5자리 정확)와 다릅니다.
AI agents call lookup_ksic_prefix to retrieve information from Taxlaw Nts without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a read-only lookup operation that retrieves and returns industry code classification data from the Korean National Tax Service database. It searches for KSIC code prefixes and returns matching NTS industry codes at various classification levels (대분류, 중분류, 소분류, 세분류, 세세분류). No data is modified, deleted, executed, or financially committed.
From the tool's definition lookup_ksic_prefix returns ('반환합니다') KSIC code mappings to NTS industry classifications based on prefix matching. The tool retrieves ('검색과 조회') data from a classification database with no modification, deletion, or execution of commands.
Attacks that exploit this kind of access
KSIC 코드 prefix로 매핑된 NTS 업종코드를 모두 반환합니다. prefix 길이에 따라 분류수준 자동 식별: 1자리 영문(B/C/M 등)=대분류, 2자리=중분류, 3자리=소분류, 4자리=세분류, 5자리=세세분류. 예: 681(부동산임대업), 4791(통신판매업), 7421(청소업). lookup_ksic_code(5자리 정확)와 다릅니다. It is categorised as a Read tool in the Taxlaw Nts MCP Server, which means it retrieves data without modifying state.
Register the Taxlaw Nts MCP server in PolicyLayer and add a rule for lookup_ksic_prefix: 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 Taxlaw Nts. Nothing to install.
lookup_ksic_prefix 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 lookup_ksic_prefix 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 lookup_ksic_prefix. 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.
lookup_ksic_prefix is provided by the Taxlaw Nts MCP server (kim-go-chon/taxlaw-nts-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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