execute_mongodb_query · Metabase MCP: Risk & Policy

WHAT IT DOES

What execute_mongodb_query does on Metabase

AI agents invoke execute_mongodb_query to trigger actions in Metabase. 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 execute_mongodb_query needs a policy

This tool executes MongoDB queries, which can perform arbitrary database operations depending on the query provided. While the description is empty, the name and context (Metabase server for database operations) indicate it runs queries with effects beyond simple reads.

From the tool's definition Tool name 'execute_mongodb_query' combined with sibling tool 'execute_query' and server description mentioning 'SQL queries' and 'database operations'. The prefix 'execute_' indicates code/query execution rather than simple retrieval.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

execute_mongodb_query Rate-limited

execute_mongodb_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.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "execute_mongodb_query": {
      "limits": [
        {
          "counter": "execute_mongodb_query_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 Metabase, so you can run agents against it safely.

FAQ

Questions about execute_mongodb_query

What does the execute_mongodb_query tool do? +

execute_mongodb_query. It is categorised as a Execute tool in the Metabase 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_mongodb_query? +

Register the Metabase MCP server in PolicyLayer and add a rule for execute_mongodb_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 Metabase. Nothing to install.

What risk level is execute_mongodb_query? +

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

Can I rate-limit execute_mongodb_query? +

Yes. Add a rate_limit block to the execute_mongodb_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_mongodb_query completely? +

Set action: deny in the PolicyLayer policy for execute_mongodb_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_mongodb_query? +

execute_mongodb_query is provided by the Metabase MCP server (voducdan/matebase-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.