Rename a file or folder in a SharePoint document library.
AI agents use rename_library_item 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.
Renaming files or folders modifies metadata and potentially affects references to those items, but the operation is reversible (can be renamed again). This is a Write operation rather than Execute because it does not run arbitrary code or scripts. Severity is medium because misuse could cause organizational confusion, broken references, or disruption to document workflows, but the changes can be undone.
From the tool's definition Tool performs 'Rename a file or folder in a SharePoint document library'—a reversible modification of existing data/metadata in an external service (SharePoint).
Documented attack patterns abuse exactly the kind of access rename_library_item 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 rename_library_item:
{
"version": "1",
"default": "deny",
"tools": {
"rename_library_item": {
"limits": [
{
"counter": "rename_library_item_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}rename_library_item 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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Rename a file or 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 rename_library_item: 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.
rename_library_item 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 rename_library_item 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 rename_library_item. 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.
rename_library_item 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.