ユーザー（社員）一覧を取得します
AI agents call list_users to retrieve information from hokan MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and lists user/employee data from the hokan Insurance CRM system. It performs a query operation without creating, modifying, deleting, or executing any external operations. The description explicitly indicates data retrieval ('一覧を取得' = 'get list').
From the tool's definition Tool name 'list_users' and description 'ユーザー（社員）一覧を取得します' (get list of users/employees) indicate a retrieval operation with no side effects.
Attacks that exploit this kind of access
ユーザー（社員）一覧を取得します. It is categorised as a Read tool in the hokan MCP Server MCP Server, which means it retrieves data without modifying state.
Register the hokan MCP Server MCP server in PolicyLayer and add a rule for list_users: 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 hokan MCP Server. Nothing to install.
list_users 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_users 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_users. 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_users is provided by the hokan MCP Server MCP server (shinonft/hokan-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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