create_look · Looker MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_look does on Looker MCP Server

AI agents use create_look 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_look needs a policy

The tool creates a new Look (a saved query/visualization in Looker), which is a reversible write operation. It does not delete data (would be Destructive), execute arbitrary code (would be Execute), or move money (would be Financial). While the description is empty, the tool name 'create_look' and the clear pattern of sibling create_* tools establish high confidence this is a Write operation.

From the tool's definition Tool name 'create_look' combined with server context indicating 'creating' content in Looker (a BI platform). Sibling tools include 'create_dashboard', 'create_board', 'create_file' which are all Write operations.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_look Rate-limited

create_look 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_look": {
      "limits": [
        {
          "counter": "create_look_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_look

What does the create_look tool do? +

create_look. 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_look? +

Register the Looker MCP Server MCP server in PolicyLayer and add a rule for create_look: 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_look? +

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

Can I rate-limit create_look? +

Yes. Add a rate_limit block to the create_look 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_look completely? +

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

create_look 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.