Query specific article/paragraph by announcement date (공포일 기준 조·항·호·목 조회). BEST TOOL for querying specific articles like "제174조", "제3조" etc. This returns only the requested article/paragraph, avoiding large full-law responses. Args: id: Law ID (either id or mst is required) mst: Law serial number...
Part of the Korean Law Search server.
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AI agents call law_josub to retrieve information from Korean Law Search 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 law_josub 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": {
"law_josub": {}
}
}See the full Korean Law Search policy for all 54 tools.
These attack patterns abuse exactly the kind of access law_josub 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.
Query specific article/paragraph by announcement date (공포일 기준 조·항·호·목 조회). BEST TOOL for querying specific articles like "제174조", "제3조" etc. This returns only the requested article/paragraph, avoiding large full-law responses. Args: id: Law ID (either id or mst is required) mst: Law serial number (MST) jo: Article number in XXXXXX format. Format: first 4 digits = article number (zero-padded), last 2 digits = branch suffix (00=main). Examples: "017400" (제174조), "017200" (제172조), "000300" (제3조), "001502" (제15조의2) hang: Paragraph number (6 digits, e.g., "000100" for 제1항) ho: Item number (6 digits, e.g., "000200" for 제2호) mok: Subitem (UTF-8 encoded, e.g., "다" for 다목) oc: Optional OC override (defaults to env var) type: Response format - "JSON" (default), "XML", or "HTML" Returns: Specific law section content Examples: Query 자본시장법 제174조: >>> law_josub(mst="279823", jo="017400", type="XML") Query 건축법 제3조 제1항: >>> law_josub(mst="276925", jo="000300", hang="000100", type="XML"). It is categorised as a Read tool in the Korean Law Search MCP Server, which means it retrieves data without modifying state.
Register the Korean Law Search MCP server in PolicyLayer and add a rule for law_josub: 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 Law Search. Nothing to install.
law_josub 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 law_josub 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 law_josub. 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.
law_josub is provided by the Korean Law Search MCP server (rabqatab/lexlink-ko-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 54 Korean Law Search tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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