Check health of Ludus MCP server and Ludus API connectivity. Uses the ludus CLI if available for more reliable connectivity testing. Returns: Health status including: - Server status (healthy/unhealthy) - MCP version - Ludus API reachability - Connection latency - Number of available tools - Conf...
AI agents call health_check 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.
This is a diagnostic/monitoring tool that queries and reports system state without triggering any operational changes. It is purely informational and read-only, making it the lowest-risk category. Even if misused by an AI agent, it cannot cause harm—it only retrieves status information.
From the tool's definition Tool performs health status checks and connectivity testing with no side effects. Returns diagnostic information: 'Server status', 'MCP version', 'Ludus API reachability', 'Connection latency', 'Number of available tools', 'Configuration sources', 'Ludus…
Documented attack patterns abuse exactly the kind of access health_check 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 health_check:
{
"version": "1",
"default": "deny",
"tools": {
"health_check": {}
}
}health_check is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Check health of Ludus MCP server and Ludus API connectivity. Uses the ludus CLI if available for more reliable connectivity testing. Returns: Health status including: - Server status (healthy/unhealthy) - MCP version - Ludus API reachability - Connection latency - Number of available tools - Configuration sources - Ludus server version (if connected). 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 health_check: 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.
health_check 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 health_check 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 health_check. 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.
health_check 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.
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201 Ludus FastMCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.