Update the sharing visibility of an OpusClip project.
AI agents use opus_share_project 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.
The tool modifies project metadata (sharing visibility settings) but does not delete data or execute arbitrary code. This is a Write operation since it creates or modifies data reversibly. Severity is medium because unauthorized sharing visibility changes could expose project content to unintended audiences, but the action can be undone by changing visibility settings back.
From the tool's definition Tool description states 'Update the sharing visibility of an OpusClip project' — this is a modification operation that changes project settings/permissions reversibly.
Documented attack patterns abuse exactly the kind of access opus_share_project 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 opus_share_project:
{
"version": "1",
"default": "deny",
"tools": {
"opus_share_project": {
"limits": [
{
"counter": "opus_share_project_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}opus_share_project 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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Update the sharing visibility of an OpusClip project. 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 opus_share_project: 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.
opus_share_project 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 opus_share_project 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 opus_share_project. 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.
opus_share_project 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.
Free to start. No card required.
423 Apple Shortcuts tools catalogued and risk-classified — across an index of 43,000+ MCP servers.