Perform a comprehensive health check on all cluster nodes.
AI agents call check_cluster_health to retrieve information from Network Scanner MCP without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries the health status of cluster infrastructure without modifying state, executing arbitrary code, or causing destructive changes. It is a read-only monitoring operation that retrieves cluster node health information for visibility purposes. The blast radius if misused by an AI agent is minimal—it can only expose infrastructure status information.
From the tool's definition Tool name 'check_cluster_health' and description 'Perform a comprehensive health check on all cluster nodes' indicate monitoring and status retrieval.
Attacks that exploit this kind of access
Perform a comprehensive health check on all cluster nodes. It is categorised as a Read tool in the Network Scanner MCP MCP Server, which means it retrieves data without modifying state.
Register the Network Scanner MCP server in PolicyLayer and add a rule for check_cluster_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 Network Scanner MCP. Nothing to install.
check_cluster_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 check_cluster_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 check_cluster_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.
check_cluster_health is provided by the Network Scanner MCP server (marc-shade/network-scanner-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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