create_text · Miro MCP Server MCP: Risk & Policy

WHAT IT DOES

What create_text does on Miro MCP Server

AI agents use create_text 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 create_text needs a policy

This tool creates a new text item on a Miro board, modifying the board's content. This is a Write operation—it creates data reversibly without permanent destruction, code execution, or financial impact. The severity is low because text item creation has minimal blast radius; an errant AI agent would only add unwanted text to a board, which is easily remediated.

From the tool's definition Tool name 'create_text' with description stating it 'Create a text item'; this is a create operation that adds new content to a Miro board, which is reversible (text items can be deleted or modified).

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

create_text Rate-limited

create_text 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_text": {
      "limits": [
        {
          "counter": "create_text_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 create_text

What does the create_text tool do? +

Create a text item (LIMITATION: text items only support width in geometry, height is NOT supported by Miro API). 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 create_text? +

Register the Miro MCP Server MCP server in PolicyLayer and add a rule for create_text: 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 create_text? +

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

Can I rate-limit create_text? +

Yes. Add a rate_limit block to the create_text 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_text completely? +

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

create_text 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.