bulk_create_items · Miro MCP Server MCP: Risk & Policy

WHAT IT DOES

What bulk_create_items does on Miro MCP Server

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

WHY IT NEEDS A POLICY

Why bulk_create_items needs a policy

This tool creates new items (up to 20) in Miro boards but does not delete, overwrite, or irreversibly modify existing data. Creation is reversible—created items can be deleted later. While bulk creation could generate substantial board clutter if misused by an agent, the blast radius is limited to creation of new content rather than destruction or financial impact.

From the tool's definition Tool name 'bulk_create_items' explicitly performs creation of multiple items. Description states 'Create multiple items at once' without any mention of deletion, modification of existing data, or irreversible operations.

Risk signalsBulk/mass operation — affects multiple targets

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

bulk_create_items Rate-limited

bulk_create_items 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": {
    "bulk_create_items": {
      "limits": [
        {
          "counter": "bulk_create_items_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 Miro MCP Server, so you can run agents against it safely.

FAQ

Questions about bulk_create_items

What does the bulk_create_items tool do? +

Create multiple items at once efficiently (max 20 items per request, implemented via sequential API calls). It is categorised as a Write tool in the Miro 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 bulk_create_items? +

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

What risk level is bulk_create_items? +

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

Can I rate-limit bulk_create_items? +

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

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

bulk_create_items is provided by the Miro MCP Server MCP server (soul-script/miro-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.