createChecklistOnCard · Trello MCP Server MCP: Risk & Policy

WHAT IT DOES

What createChecklistOnCard does on Trello MCP Server

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

WHY IT NEEDS A POLICY

Why createChecklistOnCard needs a policy

This tool creates new data (a checklist) within Trello, making it a Write operation. It is reversible—checklists can be deleted or modified. The severity is medium because while the operation modifies card state, the blast radius is limited to a single card's checklist structure, which is not critical data and can be easily undone.

From the tool's definition Tool creates a new checklist on a Trello card, as stated: 'Create a new checklist on a Trello card.' This is a create operation that adds data to an existing card.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

createChecklistOnCard Rate-limited

createChecklistOnCard 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": {
    "createChecklistOnCard": {
      "limits": [
        {
          "counter": "createchecklistoncard_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 Trello MCP Server, so you can run agents against it safely.

FAQ

Questions about createChecklistOnCard

What does the createChecklistOnCard tool do? +

Create a new checklist on a Trello card. Checklists help track subtasks and progress. It is categorised as a Write tool in the Trello 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 createChecklistOnCard? +

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

What risk level is createChecklistOnCard? +

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

Can I rate-limit createChecklistOnCard? +

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

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

createChecklistOnCard is provided by the Trello MCP Server MCP server (semblancelabs/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.