AI agents call server_health to retrieve information from Kali Security MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Health checks are read-only diagnostic operations that retrieve the current state of a service. They have no side effects, do not execute arbitrary code, do not modify data, and do not cause destructive changes. The low severity reflects that exposing server status information poses minimal risk even if misused by an AI agent.
From the tool's definition Tool name is 'server_health' and description states it 'Check[s] the health status of the Kali API server.' This is a query operation that retrieves status information without modifying, executing, or deleting anything.
Documented attack patterns abuse exactly the kind of access server_health gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Kali Security MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for server_health:
{
"version": "1",
"default": "deny",
"tools": {
"server_health": {}
}
}server_health is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Check the health status of the Kali API server. It is categorised as a Read tool in the Kali Security MCP MCP Server, which means it retrieves data without modifying state.
Register the Kali Security MCP server in PolicyLayer and add a rule for server_health: 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 Kali Security MCP. Nothing to install.
server_health 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 server_health 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 server_health. 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.
server_health is provided by the Kali Security MCP server (seac-25/kali-security-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 249 Kali Security MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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249 Kali Security MCP tools catalogued and risk-classified — across an index of 42,500+ MCP servers.