copy_card

Copy/duplicate a Trello card to any list (even on a different board). Copies all properties by default including checklists, attachments, comments, labels, etc.

SERVERTrello SOURCE@delorenj/mcp-server-trello

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-delorenj-mcp-server-trello/copy-card.md

WHAT IT DOES

What copy_card does on Trello

AI agents use copy_card 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.

RISK

Why copy_card is rated Medium

This tool creates new data (a duplicate card) on a Trello board, which is reversible through deletion. It does not execute arbitrary code, delete data irreversibly, or move money. While it modifies board state, it is fundamentally a Write operation—creating new content.

From the tool's definition Tool description states it 'copies/duplicates a Trello card' and 'copies all properties' including checklists, attachments, comments, labels. This is a data creation operation.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs copy_card safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Trello, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For copy_card, this is the rule to start with:

copy_card Rate-limited

copy_card 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": {
    "copy_card": {
      "limits": [
        {
          "counter": "copy_card_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Trello, apply this rule, and every copy_card call is checked against it from then on.

FAQ

Questions about copy_card

What does the copy_card tool do? +

Copy/duplicate a Trello card to any list (even on a different board). Copies all properties by default including checklists, attachments, comments, labels, etc. 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 copy_card? +

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

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

Can I rate-limit copy_card? +

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

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

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

KEEP EXPLORING

More on Trello, and thousands of servers like it.

This server

All 50 Trello tools →

Across the catalogue

The MCP Attack Database →

Guides

Govern customer-ops agents →Argument validation →Scoped token →