AI agents call get_preview_form_layout to retrieve information from Kintone 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 form layout information from a Kintone preview environment. It is a read-only operation that queries data without side effects. The Japanese description confirms it is a retrieval operation (取得 = retrieve/get), making it a Read category tool. Severity is low because unauthorized preview form layout access has limited blast radius in a typical Kintone deployment.
From the tool's definition Tool name includes 'get_preview' and description states 'retrieves form layout information' (取得します means 'retrieves/gets'). No modification, deletion, or execution of operations is described.
Documented attack patterns abuse exactly the kind of access get_preview_form_layout gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kintone MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for get_preview_form_layout:
{
"version": "1",
"default": "deny",
"tools": {
"get_preview_form_layout": {}
}
}get_preview_form_layout is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
Free to start. No card required.
プレビュー環境のkintoneアプリのフォームレイアウト情報を取得します. It is categorised as a Read tool in the Kintone MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Kintone MCP Server MCP server in PolicyLayer and add a rule for get_preview_form_layout: 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 Kintone MCP Server. Nothing to install.
get_preview_form_layout 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_preview_form_layout 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_preview_form_layout. 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_preview_form_layout is provided by the Kintone MCP Server MCP server (r3-yamauchi/kintone-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Kintone 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.
70 Kintone MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.