AI agents call get_law_content to retrieve information from e-Gov Law MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Despite the empty description, the naming convention ('get_') and context within an e-Gov legal research server strongly indicate this tool retrieves or queries legal statute content. The server is explicitly designed for 'search and retrieval' with no mention of modification, deletion, or financial transactions. This is a read-only data retrieval operation with no destructive or irreversible effects.
From the tool's definition Tool name 'get_law_content' combined with server description indicating 'retrieval of Japanese legal statutes' and 'search and retrieval' operations.
Documented attack patterns abuse exactly the kind of access get_law_content gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and e-Gov Law MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_law_content:
{
"version": "1",
"default": "deny",
"tools": {
"get_law_content": {}
}
}get_law_content is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_law_content. It is categorised as a Read tool in the e-Gov Law MCP Server MCP Server, which means it retrieves data without modifying state.
Register the e-Gov Law MCP Server MCP server in PolicyLayer and add a rule for get_law_content: 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 e-Gov Law MCP Server. Nothing to install.
get_law_content 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 get_law_content 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 get_law_content. 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.
get_law_content is provided by the e-Gov Law MCP Server MCP server (ryoooo/e-gov-law-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from e-Gov Law MCP Server, 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.
8 e-Gov Law MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.