execute_promql_range_query

THE RISK

High Risk

Why execute_promql_range_query needs a policy

This tool executes PromQL (Prometheus Query Language) queries, which can perform arbitrary data retrieval, aggregations, and computations against time-series metrics. While primarily a Read operation (querying metrics), the 'execute' nomenclature and potential for complex computational queries justifies Execute classification.

From the tool's definition Tool name 'execute_promql_range_query' indicates execution of PromQL queries against Prometheus. The 'execute' verb combined with query operations on a monitoring system represents code/query execution whose effects depend on the query arguments.

Documented attack patterns abuse exactly the kind of access execute_promql_range_query gives an agent:

POLICY

How to control execute_promql_range_query

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 execute_promql_range_query:

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "execute_promql_range_query": {
      "limits": [
        {
          "counter": "execute_promql_range_query_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

execute_promql_range_query stays usable, but rate-capped — a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

Create a free account and register Prometheus MCP Server — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

RATE-LIMIT THIS TOOL →

Free to start. No card required.

EXPLORE

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Go deeper

High-risk tools in Prometheus MCP Server → Every high-risk tool this server exposes, in one view.
All high-risk MCP tools → Every high-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Agent sandbox → Bounding what an agent can execute and where the boundary should sit.
Least privilege for MCP → Granting agents the minimum tool surface the task needs.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →

FAQ

Questions about execute_promql_range_query

What does the execute_promql_range_query tool do? +

execute_promql_range_query. It is categorised as a Execute tool in the Prometheus MCP Server MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on execute_promql_range_query? +

Register the Prometheus MCP Server MCP server in PolicyLayer and add a rule for execute_promql_range_query: 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.

What risk level is execute_promql_range_query? +

execute_promql_range_query is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit execute_promql_range_query? +

Yes. Add a rate_limit block to the execute_promql_range_query 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 execute_promql_range_query completely? +

Set action: deny in the PolicyLayer policy for execute_promql_range_query. 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 execute_promql_range_query? +

execute_promql_range_query 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.

Enforce policy on every Prometheus MCP Server tool call.

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.

CHECK YOUR STACK →