export_card_result · Metabase MCP Server MCP: Risk & Policy

WHAT IT DOES

What export_card_result does on Metabase MCP Server

AI agents use export_card_result to create or update resources in Metabase MCP Server — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Metabase MCP Server environment.

WHY IT NEEDS A POLICY

Why export_card_result needs a policy

An AI agent can call export_card_result faster than any human can review — one bad instruction and it creates or modifies resources in Metabase MCP Server by the hundred, each call as confident as the last.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

export_card_result Rate-limited

export_card_result stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "export_card_result": {
      "limits": [
        {
          "counter": "export_card_result_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

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 MCP Server, so you can run agents against it safely.

FAQ

Questions about export_card_result

What does the export_card_result tool do? +

Execute a Metabase card and export the results in a specific format (CSV, Excel, JSON, etc.) - use this to download data for external analysis, create reports for stakeholders, or integrate query results with other systems. It is categorised as a Write tool in the Metabase MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on export_card_result? +

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

What risk level is export_card_result? +

export_card_result is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit export_card_result? +

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

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

export_card_result is provided by the Metabase MCP Server MCP server (thangnm93/metabase-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.