Get metrics for a given category name (from ga_list_metric_categories).
AI agents call ga_get_metrics_by_category to retrieve information from Apple Shortcuts without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves data from a metrics system based on a category parameter. It has no side effects, does not execute code or commands, does not modify data, and does not delete or move data. The operation is purely informational and read-only, making it a Read category tool with low severity.
From the tool's definition Tool retrieves metrics for a given category (ga_get_metrics_by_category) with no modification or execution of external systems; described as 'Get metrics' indicating a query/fetch operation.
Documented attack patterns abuse exactly the kind of access ga_get_metrics_by_category 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 ga_get_metrics_by_category:
{
"version": "1",
"default": "deny",
"tools": {
"ga_get_metrics_by_category": {}
}
} ga_get_metrics_by_category is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get metrics for a given category name (from ga_list_metric_categories). It is categorised as a Read tool in the Apple Shortcuts MCP Server, which means it retrieves data without modifying state.
Register the Apple Shortcuts MCP server in PolicyLayer and add a rule for ga_get_metrics_by_category: 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.
ga_get_metrics_by_category is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the ga_get_metrics_by_category 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 ga_get_metrics_by_category. 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.
ga_get_metrics_by_category 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.