AI agents call get_field_type_documentation 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 reference documentation about field types in Kintone. It is a read-only operation that queries or fetches static documentation without side effects, and does not create, modify, delete, or execute any operations on data or external systems.
From the tool's definition Tool name 'get_field_type_documentation' and description 'フィールドタイプに関するドキュメントを取得します' (retrieves documentation related to field types) indicate a retrieval operation with no data modification or execution of arbitrary commands.
Documented attack patterns abuse exactly the kind of access get_field_type_documentation 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_field_type_documentation:
{
"version": "1",
"default": "deny",
"tools": {
"get_field_type_documentation": {}
}
}get_field_type_documentation is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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フィールドタイプに関するドキュメントを取得します. 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_field_type_documentation: 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_field_type_documentation 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_field_type_documentation 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_field_type_documentation. 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_field_type_documentation 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.