Create a new folder in a SharePoint document library.
AI agents use create_library_folder to create or update resources in Apple Shortcuts — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Apple Shortcuts environment.
Creating a folder in SharePoint is a Write operation—it modifies the document library structure by adding a new resource, but the action is reversible (the folder can be deleted). It does not execute arbitrary code, delete data irreversibly, or move funds.
From the tool's definition Tool description explicitly states 'Create a new folder' which is a data creation operation. The tool modifies a SharePoint document library by adding a new folder structure, a reversible action.
Documented attack patterns abuse exactly the kind of access create_library_folder gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apple Shortcuts, and nothing reaches the server without passing your rules. This is the rule we recommend for create_library_folder:
{
"version": "1",
"default": "deny",
"tools": {
"create_library_folder": {
"limits": [
{
"counter": "create_library_folder_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}create_library_folder 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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Create a new folder in a SharePoint document library. It is categorised as a Write tool in the Apple Shortcuts MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Apple Shortcuts MCP server in PolicyLayer and add a rule for create_library_folder: 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 Apple Shortcuts. Nothing to install.
create_library_folder 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_library_folder 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_library_folder. 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_library_folder is provided by the Apple Shortcuts MCP server (@mindstone/mcp-server-apple-shortcuts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Apple Shortcuts, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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423 Apple Shortcuts tools catalogued and risk-classified — across an index of 43,000+ MCP servers.