ga_list_metric_categories

THE RISK

Low Risk

Why ga_list_metric_categories needs a policy

This tool queries and returns metadata about metric categories. It performs a read-only lookup of available categories without modifying, executing, or deleting anything. The low severity reflects minimal blast radius—an AI agent misusing this could only retrieve schema information, posing no risk to data integrity or system state.

From the tool's definition Tool name contains 'list' and description states 'List available metric categories' — a retrieval operation with no side effects. Returns schema information about available metrics.

Documented attack patterns abuse exactly the kind of access ga_list_metric_categories gives an agent:

POLICY

How to control ga_list_metric_categories

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 ga_list_metric_categories:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "ga_list_metric_categories": {}
  }
}

ga_list_metric_categories is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Apple Shortcuts — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

CAP THIS TOOL →

Free to start. No card required.

EXPLORE

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All 423 Apple Shortcuts tools →

Read tools on other servers

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Go deeper

The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about ga_list_metric_categories

What does the ga_list_metric_categories tool do? +

List available metric categories for the property schema. It is categorised as a Read tool in the Apple Shortcuts MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on ga_list_metric_categories? +

Register the Apple Shortcuts MCP server in PolicyLayer and add a rule for ga_list_metric_categories: 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.

What risk level is ga_list_metric_categories? +

ga_list_metric_categories is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit ga_list_metric_categories? +

Yes. Add a rate_limit block to the ga_list_metric_categories 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.

How do I block ga_list_metric_categories completely? +

Set action: deny in the PolicyLayer policy for ga_list_metric_categories. 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.

What MCP server provides ga_list_metric_categories? +

ga_list_metric_categories 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.

Enforce policy on every Apple Shortcuts tool call.

Start from Apple Shortcuts, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →