cluster_list
AI agents call cluster_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 'cluster_list' tool appears to retrieve or enumerate clusters in the VNG Cloud infrastructure without modifying, deleting, or executing operations on them. No side effects are indicated. The sibling tool 'cluster_get' confirms a pattern of read operations on this server, supporting classification as a Read operation with low severity.
From the tool's definition Tool name 'cluster_list' indicates a listing/enumeration operation. The server context (VNG Cloud infrastructure management) and sibling tools like 'cluster_get', 'cluster_get_events' suggest this retrieves cluster information.
Attacks that exploit this kind of access
cluster_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 cluster_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.
cluster_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 cluster_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 cluster_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.
cluster_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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