query_ntopng_database · Mcp Ntopng MCP: Risk & Policy

WHAT IT DOES

What query_ntopng_database does on Mcp Ntopng

AI agents invoke query_ntopng_database to trigger actions in Mcp Ntopng. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call — builds kicked off, notifications sent, workflows started.

WHY IT NEEDS A POLICY

Why query_ntopng_database needs a policy

While named 'query', executing arbitrary SQL against a ClickHouse database can include destructive or data-exfiltrating statements (SELECT, DROP, DELETE, INSERT, etc.). The description does not restrict to read-only operations, so the most severe applicable category is Execute.

From the tool's definition "Query the ntopng Clickhouse database" — executes arbitrary queries against a ClickHouse database

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

query_ntopng_database Rate-limited

query_ntopng_database 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.

View as policy code

policy.json

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

RATE-LIMIT THIS TOOL →

Instant setup, no code required.

PolicyLayer is an MCP gateway: every tool call is checked against your rule before it reaches Mcp Ntopng, so you can run agents against it safely.

FAQ

Questions about query_ntopng_database

What does the query_ntopng_database tool do? +

Query the ntopng Clickhouse database. It is categorised as a Execute tool in the Mcp Ntopng MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

How do I enforce a policy on query_ntopng_database? +

Register the Mcp Ntopng MCP server in PolicyLayer and add a rule for query_ntopng_database: 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 Mcp Ntopng. Nothing to install.

What risk level is query_ntopng_database? +

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

Can I rate-limit query_ntopng_database? +

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

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

query_ntopng_database is provided by the Mcp Ntopng MCP server (marcoeg/mcp-server-ntopng). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.