moveCard · Trello MCP Server MCP: Risk & Policy

WHAT IT DOES

What moveCard does on Trello MCP Server

AI agents use moveCard 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 moveCard needs a policy

This tool modifies existing data (card position) reversibly without deleting or destroying data, fitting the Write category. The severity is medium because misuse could disrupt workflow organization, but the change can be easily undone by moving the card back. It does not execute arbitrary code, delete data, or involve financial operations.

From the tool's definition moveCard moves a card to a different list, which modifies the state of a Trello board by changing a card's location. The description states 'Move a card to a different list.

Attacks that exploit this kind of access

Recommended rule Ready

Verdict

moveCard Rate-limited

moveCard 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": {
    "moveCard": {
      "limits": [
        {
          "counter": "movecard_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 moveCard

What does the moveCard tool do? +

Move a card to a different list. Use this to change a card\. 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 moveCard? +

Register the Trello MCP Server MCP server in PolicyLayer and add a rule for moveCard: 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 moveCard? +

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

Can I rate-limit moveCard? +

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

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

moveCard 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.