get_available_metrics
AI agents call get_available_metrics to retrieve information from Google Analytics MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves available metrics metadata from Google Analytics 4—a pure read operation with no side effects. The empty description is offset by the clear semantic intent of the name ('get') and the consistent read-only pattern of all sibling tools on the server. Blast radius is minimal: an agent could only discover what metrics exist, not alter data or trigger financial/destructive actions.
From the tool's definition Tool name 'get_available_metrics' indicates retrieval of metric metadata. Server context shows all sibling tools are read-only reporting and monitoring functions (get_acquisition_report, get_device_report, get_events_report, etc.).
Attacks that exploit this kind of access
get_available_metrics. It is categorised as a Read tool in the Google Analytics MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Google Analytics MCP Server MCP server in PolicyLayer and add a rule for get_available_metrics: 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 Google Analytics MCP Server. Nothing to install.
get_available_metrics 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 get_available_metrics 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 get_available_metrics. 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.
get_available_metrics is provided by the Google Analytics MCP Server MCP server (reklis/google-analytics-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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