list_prometheus_metric_metadata

List Prometheus metric metadata. Returns metadata about metrics currently scraped from targets.

SERVERGrafana MCP Server SOURCE0xteamhq/mcp-grafana

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade C, identity unverified Pull the record →

This record as markdown: /tools/0xteamhq-mcp-grafana/list-prometheus-metric-metadata.md

WHAT IT DOES

What list_prometheus_metric_metadata does on Grafana MCP Server

AI agents call list_prometheus_metric_metadata to retrieve information from Grafana MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why list_prometheus_metric_metadata is rated Low

This tool retrieves and lists metadata about Prometheus metrics from existing monitoring targets. It performs a read-only query operation with no capability to modify, delete, or execute code. The worst case misuse would be exposure of metric names and metadata, which has minimal security impact. No destructive, financial, or execution capabilities are present.

From the tool's definition Tool name 'list_prometheus_metric_metadata' and description 'List Prometheus metric metadata. Returns metadata about metrics currently scraped from targets' indicate a query/retrieval operation that returns information without modification or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs list_prometheus_metric_metadata safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Grafana MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_prometheus_metric_metadata, this is the rule to start with:

list_prometheus_metric_metadata Allowed

list_prometheus_metric_metadata is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "list_prometheus_metric_metadata": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Grafana MCP Server, apply this rule, and every list_prometheus_metric_metadata call is checked against it from then on.

FAQ

Questions about list_prometheus_metric_metadata

What does the list_prometheus_metric_metadata tool do? +

List Prometheus metric metadata. Returns metadata about metrics currently scraped from targets. It is categorised as a Read tool in the Grafana MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on list_prometheus_metric_metadata? +

Register the Grafana MCP Server MCP server in PolicyLayer and add a rule for list_prometheus_metric_metadata: 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 Grafana MCP Server. Nothing to install.

What risk level is list_prometheus_metric_metadata? +

list_prometheus_metric_metadata is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit list_prometheus_metric_metadata? +

Yes. Add a rate_limit block to the list_prometheus_metric_metadata 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.

How do I block list_prometheus_metric_metadata completely? +

Set action: deny in the PolicyLayer policy for list_prometheus_metric_metadata. 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.

What MCP server provides list_prometheus_metric_metadata? +

list_prometheus_metric_metadata is provided by the Grafana MCP Server MCP server (0xteamhq/mcp-grafana). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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