AI agents use create_table_layout to create or update resources in Kintone MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Kintone MCP Server environment.
The tool creates a new table layout structure within Kintone, which is a reversible modification operation. This is categorized as Write rather than Destructive because layouts can typically be deleted or modified without permanent data loss. Severity is high because unauthorized layout creation could disrupt application structure and user workflows, affecting multiple users relying on the application's design.
From the tool's definition Tool description 'テーブルレイアウトを作成します' (creates a table layout) indicates creation of a new structural element in Kintone.
Documented attack patterns abuse exactly the kind of access create_table_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 create_table_layout:
{
"version": "1",
"default": "deny",
"tools": {
"create_table_layout": {
"limits": [
{
"counter": "create_table_layout_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_table_layout stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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テーブルレイアウトを作成します. It is categorised as a Write tool in the Kintone MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Kintone MCP Server MCP server in PolicyLayer and add a rule for create_table_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.
create_table_layout is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_table_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 create_table_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.
create_table_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.