Medium Risk

move_all_cards

Move all cards in a list to another list. Use this tool to quickly move all cards from one list to another.

How to control move_all_cards ↓

What move_all_cards does on Trello

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

Medium Risk

Why move_all_cards needs a policy

The tool modifies card locations within lists, which is a reversible action. Cards are not deleted or destroyed; they are repositioned. Severity is medium because bulk movement of all cards in a list could disrupt workflow or cause confusion if triggered unintentionally, but the operation can be undone by moving cards back.

From the tool's definition Tool description states 'Move all cards in a list to another list' — a reversible modification of card state/location.

Documented attack patterns abuse exactly the kind of access move_all_cards gives an agent:

How to control move_all_cards

PolicyLayer is an MCP gateway — it sits between your AI agents and Trello, and nothing reaches the server without passing your rules. This is the rule we recommend for move_all_cards:

policy.json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "move_all_cards": {
      "limits": [
        {
          "counter": "move_all_cards_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

move_all_cards 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.

  1. Create a free account and register Trello — nothing to install.
  2. Add this policy — paste it, or build it visually.
  3. Point your MCP client (Claude, Cursor, anything) at your gateway URL.
LIMIT THIS TOOL →

Free to start. No card required.

Related tools and policies

Go deeper

Questions about move_all_cards

What does the move_all_cards tool do? +

Move all cards in a list to another list. Use this tool to quickly move all cards from one list to another. It is categorised as a Write tool in the Trello MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on move_all_cards? +

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

What risk level is move_all_cards? +

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

Can I rate-limit move_all_cards? +

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

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

move_all_cards is provided by the Trello MCP server (v4lheru/trello-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Trello tool call.

Start from Trello, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

Free to start. No card required.

76 Trello tools catalogued and risk-classified — across an index of 43,000+ MCP servers.

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