kintoneアプリをスペースに所属させないようにします。注意: kintoneシステム管理の「利用する機能の選択」で「スペースに所属しないアプリの作成を許可する」が有効になっている必要があります。
AI agents use move_app_from_space 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.
This tool modifies app organizational metadata by changing space membership, which is a Write operation. It affects the configuration and organizational structure of Kintone apps but does not permanently destroy data (Destructive), execute arbitrary logic (Execute), or involve financial operations (Financial).
From the tool's definition Tool name 'move_app_from_space' performs a state change on a Kintone app, removing it from a space organizational structure.
Documented attack patterns abuse exactly the kind of access move_app_from_space 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 move_app_from_space:
{
"version": "1",
"default": "deny",
"tools": {
"move_app_from_space": {
"limits": [
{
"counter": "move_app_from_space_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}move_app_from_space 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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kintoneアプリをスペースに所属させないようにします。注意: kintoneシステム管理の「利用する機能の選択」で「スペースに所属しないアプリの作成を許可する」が有効になっている必要があります。. 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 move_app_from_space: 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.
move_app_from_space 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 move_app_from_space 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 move_app_from_space. 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.
move_app_from_space 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.