add_checklist_item

Add a new item to a checklist

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/add-checklist-item.md

WHAT IT DOES

What add_checklist_item does on Trello

AI agents use add_checklist_item 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 add_checklist_item is rated Medium

This tool creates or modifies data reversibly by adding a checklist item to a Trello card. It does not delete, execute code, move money, or trigger external operations—it simply appends a new item to a checklist, which is a Write operation. The severity is medium because misuse could clutter boards with unwanted checklist items, but the effects are easily reversible (items can be deleted or the card can be reset).

From the tool's definition Tool name is 'add_checklist_item' and description states 'Add a new item to a checklist', which involves creating new data within an existing checklist structure on a Trello card.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs add_checklist_item 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 add_checklist_item, this is the rule to start with:

add_checklist_item Rate-limited

add_checklist_item 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": {
    "add_checklist_item": {
      "limits": [
        {
          "counter": "add_checklist_item_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 add_checklist_item call is checked against it from then on.

FAQ

Questions about add_checklist_item

What does the add_checklist_item tool do? +

Add a new item to a checklist. 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 add_checklist_item? +

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

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

Can I rate-limit add_checklist_item? +

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

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

add_checklist_item 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

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