法令種別（憲法・法律・政令・省令・規則・条例・告示・通達 等）の制定主体・階層上の位置・国民への拘束力・実務上の注意点を解説する。法務専門家でない利用者が「政令と省令の違い」「通達は守らなくていいのか」等を確認するための知識ツール。
AI agents call explain_law_type to retrieve information from Houki e-Gov MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool purely retrieves and presents explanatory knowledge about categories of Japanese law (constitution, statute, cabinet order, ministerial ordinance, etc.). It has no side effects, does not modify any data, and does not execute any operations. It is a read-only knowledge/reference tool with minimal blast radius.
From the tool's definition 解説する（explains/describes）、知識ツール（knowledge tool）— the tool explains and describes Japanese law types, their hierarchies, and practical notes
Attacks that exploit this kind of access
法令種別（憲法・法律・政令・省令・規則・条例・告示・通達 等）の制定主体・階層上の位置・国民への拘束力・実務上の注意点を解説する。法務専門家でない利用者が「政令と省令の違い」「通達は守らなくていいのか」等を確認するための知識ツール。. It is categorised as a Read tool in the Houki e-Gov MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Houki e-Gov MCP Server MCP server in PolicyLayer and add a rule for explain_law_type: 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 Houki e-Gov MCP Server. Nothing to install.
explain_law_type 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 explain_law_type 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 explain_law_type. 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.
explain_law_type is provided by the Houki e-Gov MCP Server MCP server (shuji-bonji/houki-egov-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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