batch_create_elements · tldraw MCP Server MCP: Risk & Policy

WHAT IT DOES

What batch_create_elements does on tldraw MCP Server

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

WHY IT NEEDS A POLICY

Why batch_create_elements needs a policy

This tool creates or modifies data (diagram elements) reversibly. Users or agents can delete created elements afterward. It does not execute arbitrary code, delete data irreversibly, or involve financial transactions. The medium severity reflects that bulk creation could clutter or disrupt a canvas, but the effects are easily undoable within the tldraw application context.

From the tool's definition Tool name 'batch_create_elements' and description 'Create multiple elements in one atomic operation' indicate reversible data creation within a tldraw canvas.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

batch_create_elements Rate-limited

batch_create_elements 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": {
    "batch_create_elements": {
      "limits": [
        {
          "counter": "batch_create_elements_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 tldraw MCP Server, so you can run agents against it safely.

FAQ

Questions about batch_create_elements

What does the batch_create_elements tool do? +

Create multiple elements in one atomic operation. It is categorised as a Write tool in the tldraw 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 batch_create_elements? +

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

What risk level is batch_create_elements? +

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

Can I rate-limit batch_create_elements? +

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

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

batch_create_elements is provided by the tldraw MCP Server MCP server (mihai-codes/tldraw-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.