Compare how a specific article changed between two law versions (조문 신구대조). Use MST values from law_amendment_summary to compare article text across revisions. Args: mst_old: MST of the older version (법령일련번호, from law_amendment_summary) mst_new: MST of the newer version article: Article number (e....
Part of the Korean Law Search server.
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AI agents call article_amendment_diff 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 article_amendment_diff 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": {
"article_amendment_diff": {}
}
}See the full Korean Law Search policy for all 54 tools.
These attack patterns abuse exactly the kind of access article_amendment_diff 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.
Compare how a specific article changed between two law versions (조문 신구대조). Use MST values from law_amendment_summary to compare article text across revisions. Args: mst_old: MST of the older version (법령일련번호, from law_amendment_summary) mst_new: MST of the newer version article: Article number (e.g., 52 for 제52조) article_branch: Branch number (e.g., 2 for 제52조의2, default 0) oc: Optional OC override type: Response format - "JSON" (default), "XML", or "HTML" Returns: Side-by-side comparison with line-level diff Examples: >>> article_amendment_diff(mst_old="269000", mst_new="273000", article=52). 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 article_amendment_diff: 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.
article_amendment_diff 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 article_amendment_diff 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 article_amendment_diff. 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.
article_amendment_diff 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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