create_collection

Create a new collection

SERVERMetabase MCP SOURCE1luvc0d3/metabase-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/1luvc0d3-metabase-mcp/create-collection.md

WHAT IT DOES

What create_collection does on Metabase MCP

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

RISK

Why create_collection is rated Medium

This tool creates a new collection (a data structure) in Metabase but does not execute queries, delete data, or move financial resources. While collections can organize cards and dashboards, the action itself is reversible (collections can be deleted).

From the tool's definition Tool name 'create_collection' and description 'Create a new collection' indicate creation of a new organizational/data container within Metabase, which is a reversible write operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs create_collection safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Metabase MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For create_collection, this is the rule to start with:

create_collection Rate-limited

create_collection 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_collection": {
      "limits": [
        {
          "counter": "create_collection_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Metabase MCP, apply this rule, and every create_collection call is checked against it from then on.

FAQ

Questions about create_collection

What does the create_collection tool do? +

Create a new collection. It is categorised as a Write tool in the Metabase MCP 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_collection? +

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

What risk level is create_collection? +

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

Can I rate-limit create_collection? +

Yes. Add a rate_limit block to the create_collection 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_collection completely? +

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

create_collection is provided by the Metabase MCP server (1luvc0d3/metabase-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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