2つの書類の同一セクションを比較します（例: 前期 vs 当期のリスク記述）。
AI agents call compare_sections to retrieve information from Japan Ir Search without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and presents side-by-side comparisons of existing document sections. It does not create, modify, delete, or execute anything—it only reads and presents data from indexed Japanese IR filings. The sibling tools (get_filing_section, list_indexed_companies, search_filings) are all clearly Read operations, and compare_sections fits the same read-only pattern.
From the tool's definition Tool compares sections between two documents (前期 vs 当期のリスク記述 = prior period vs current period risk descriptions).
Attacks that exploit this kind of access
2つの書類の同一セクションを比較します（例: 前期 vs 当期のリスク記述）。. It is categorised as a Read tool in the Japan Ir Search MCP Server, which means it retrieves data without modifying state.
Register the Japan Ir Search MCP server in PolicyLayer and add a rule for compare_sections: 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 Japan Ir Search. Nothing to install.
compare_sections 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 compare_sections 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 compare_sections. 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.
compare_sections is provided by the Japan Ir Search MCP server (tamcho113/japan-ir-search). 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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