AI agents call get_script_metrics_tool to retrieve information from Apps Script MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool appears to fetch or query script performance/execution metrics without modifying state, executing code, or triggering side effects. The 'get_' prefix strongly suggests a retrieval operation. Confidence is moderate (0.7) due to lack of descriptive detail, but the risk remains low as metrics retrieval is typically a passive, informational operation.
From the tool's definition Tool name 'get_script_metrics_tool' indicates retrieval of metrics data; description is empty but naming pattern aligns with read-only query operations on the server.
Documented attack patterns abuse exactly the kind of access get_script_metrics_tool gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Apps Script MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for get_script_metrics_tool:
{
"version": "1",
"default": "deny",
"tools": {
"get_script_metrics_tool": {}
}
}get_script_metrics_tool is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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get_script_metrics_tool. It is categorised as a Read tool in the Apps Script MCP MCP Server, which means it retrieves data without modifying state.
Register the Apps Script MCP server in PolicyLayer and add a rule for get_script_metrics_tool: 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 Apps Script MCP. Nothing to install.
get_script_metrics_tool 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_script_metrics_tool 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_script_metrics_tool. 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_script_metrics_tool is provided by the Apps Script MCP server (sam-ent/google-automation-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Apps Script MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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60 Apps Script MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.