AI agents call list_tsutatsu to retrieve information from Tax Law without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and displays organizational metadata about Japanese tax administrative notices. It performs no data creation, modification, deletion, code execution, or financial operations. It is a pure read operation with no side effects—a navigation aid for querying the tax law database.
From the tool's definition Tool displays a table of contents (目次) structure for administrative notices (通達). The verb 'list' and the phrase '表示する' (display) indicate retrieval and presentation of existing data without modification.
Attacks that exploit this kind of access
通達の目次（章・節・条の構造）を表示する。通達番号が分からない場合に使用。. It is categorised as a Read tool in the Tax Law MCP Server, which means it retrieves data without modifying state.
Register the Tax Law MCP server in PolicyLayer and add a rule for list_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 Tax Law. Nothing to install.
list_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 list_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 list_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.
list_tsutatsu is provided by the Tax Law MCP server (xqzimgz/tax-law-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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