Export metrics data. Args: format: Export format (json, csv, prometheus) start_time: Optional start time for metrics (ISO format) end_time: Optional end time for metrics (ISO format) user_id: Optional user ID (admin only) Returns: Exported metrics data
AI agents call export_metrics to retrieve information from Ludus FastMCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool reads and exports existing metrics data in various formats (json, csv, prometheus). It does not modify, delete, or create any data. The admin-only user_id parameter only scopes the read operation. Severity is low as misuse would only expose metrics/telemetry data.
From the tool's definition Export metrics data — retrieves metrics with optional time range and user filters; no side effects described
Risk signalsAdmin/system-level operation
Documented attack patterns abuse exactly the kind of access export_metrics gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Ludus FastMCP, and nothing reaches the server without passing your rules. This is the rule we recommend for export_metrics:
{
"version": "1",
"default": "deny",
"tools": {
"export_metrics": {}
}
}export_metrics is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Export metrics data. Args: format: Export format (json, csv, prometheus) start_time: Optional start time for metrics (ISO format) end_time: Optional end time for metrics (ISO format) user_id: Optional user ID (admin only) Returns: Exported metrics data. It is categorised as a Read tool in the Ludus FastMCP MCP Server, which means it retrieves data without modifying state.
Register the Ludus Fast MCP server in PolicyLayer and add a rule for export_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 Ludus FastMCP. Nothing to install.
export_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 export_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 export_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.
export_metrics is provided by the Ludus Fast MCP server (tjnull/ludus-fastmcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 201 Ludus FastMCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.