create_connection · Looker MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_connection does on Looker MCP Server

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

WHY IT NEEDS A POLICY

Why create_connection needs a policy

Creating a connection is a reversible Write operation that establishes a new data source integration. While connections don't delete data, they can expose new data access paths and modify system configuration. The high severity reflects that misconfigured or malicious connections could breach data security or expose unauthorized data sources.

From the tool's definition Tool name is 'create_connection' with no description provided. Based on sibling tools (create_dashboard, create_folder, create_credentials_api3) that perform Write operations on Looker resources, this tool likely creates a new database or service connection…

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_connection Rate-limited

create_connection 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": {
    "create_connection": {
      "limits": [
        {
          "counter": "create_connection_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 Looker MCP Server, so you can run agents against it safely.

FAQ

Questions about create_connection

What does the create_connection tool do? +

create_connection. It is categorised as a Write tool in the Looker 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 create_connection? +

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

What risk level is create_connection? +

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

Can I rate-limit create_connection? +

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

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

create_connection is provided by the Looker MCP Server MCP server (ultrathink-solutions/looker-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.