Returns a list of Timestream for InfluxDB DB clusters filtered by status (case-insensitive).
AI agents call ListClustersByStatus to retrieve information from Prometheus MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves and filters cluster information without altering any state. It is a straightforward read operation that queries existing data. The blast radius is minimal since it only exposes information that an authorized user could already query directly. No side effects, no data modification, and no irreversible actions are possible.
From the tool's definition Tool name 'ListClustersByStatus' and description 'Returns a list of Timestream for InfluxDB DB clusters filtered by status' indicate a query/list operation with no modification or deletion of data.
Documented attack patterns abuse exactly the kind of access ListClustersByStatus gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Prometheus MCP Server, and nothing reaches the server without passing your rules. This is the rule we recommend for ListClustersByStatus:
{
"version": "1",
"default": "deny",
"tools": {
"ListClustersByStatus": {}
}
}ListClustersByStatus is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Returns a list of Timestream for InfluxDB DB clusters filtered by status (case-insensitive). It is categorised as a Read tool in the Prometheus MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Prometheus MCP Server MCP server in PolicyLayer and add a rule for ListClustersByStatus: 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 Prometheus MCP Server. Nothing to install.
ListClustersByStatus 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 ListClustersByStatus 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 ListClustersByStatus. 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.
ListClustersByStatus is provided by the Prometheus MCP Server MCP server (awslabs.prometheus-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Prometheus MCP Server, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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805 Prometheus MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.