nodegroup_list
AI agents call nodegroup_list to retrieve information from GreenNode MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
The tool lists nodegroups, which is a read operation that retrieves data about Kubernetes node groups in VNG Cloud infrastructure without side effects. While the description is uninformative, the '_list' suffix strongly suggests a query/retrieval function typical of Read category tools.
From the tool's definition Tool name 'nodegroup_list' indicates retrieval of nodegroup information with no modification capabilities. The '_list' suffix is a standard naming convention for read-only query operations. Description is empty, but the naming pattern is unambiguous.
Attacks that exploit this kind of access
nodegroup_list. It is categorised as a Read tool in the GreenNode MCP Server MCP Server, which means it retrieves data without modifying state.
Register the GreenNode MCP Server MCP server in PolicyLayer and add a rule for nodegroup_list: 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 GreenNode MCP Server. Nothing to install.
nodegroup_list 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 nodegroup_list 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 nodegroup_list. 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.
nodegroup_list is provided by the GreenNode MCP Server MCP server (vngcloud/greennode-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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