厚生労働省の法令等データベースから通達をキーワード検索する。労働基準、雇用保険、安全衛生、社会保険等の行政通達を検索可能。
AI agents call search_mhlw_tsutatsu to retrieve information from Labor Law without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a read-only tool that searches and retrieves legal and administrative texts from a government database. It has no capability to modify, delete, or execute external operations. The only side effect is retrieving information already in the database, which carries minimal security risk. Misuse would result in exposure of publicly available legal information, not unauthorized access or harmful real-world effects.
From the tool's definition Tool description indicates it performs keyword search (キーワード検索) to retrieve administrative circulars (通達) from Ministry of Health, Labour and Welfare database.
Documented attack patterns abuse exactly the kind of access search_mhlw_tsutatsu gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Labor Law, and nothing reaches the server without passing your rules. This is the rule we recommend for search_mhlw_tsutatsu:
{
"version": "1",
"default": "deny",
"tools": {
"search_mhlw_tsutatsu": {}
}
}search_mhlw_tsutatsu is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
厚生労働省の法令等データベースから通達をキーワード検索する。労働基準、雇用保険、安全衛生、社会保険等の行政通達を検索可能。. It is categorised as a Read tool in the Labor Law MCP Server, which means it retrieves data without modifying state.
Register the Labor Law MCP server in PolicyLayer and add a rule for search_mhlw_tsutatsu: 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 Labor Law. Nothing to install.
search_mhlw_tsutatsu 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 search_mhlw_tsutatsu 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 search_mhlw_tsutatsu. 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.
search_mhlw_tsutatsu is provided by the Labor Law MCP server (kentaroajisaka/labor-law-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Labor Law, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
6 Labor Law tools catalogued and risk-classified — across an index of 43,000+ MCP servers.