# add_checklist_item

Add an item to an existing checklist.

Agent View of the PolicyLayer registry record for `add_checklist_item`. HTML page: https://policylayer.com/tools/artemnikov-trello-mcp/add-checklist-item

## Facts

- Tool: `add_checklist_item`
- Server: Trello (`artemnikov/trello-mcp`) — https://policylayer.com/tools/artemnikov-trello-mcp.md
- Homepage: https://github.com/Artemnikov/Trello-mcp
- Risk category: Write (Medium risk)
- Registry record: grade B, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "add_checklist_item",
    "arguments": {}
  }
}
```

## Why add_checklist_item is rated Medium

This is a Write operation because it creates or modifies data reversibly. Adding a checklist item is additive and can be undone by removing the item. It is not Read (no retrieval), not Execute (no code/shell execution), not Destructive (the action is reversible), and not Financial.

From the tool's own definition: "Tool description states 'Add an item to an existing checklist' — this creates new data (a checklist item) on a Trello card, modifying the card's state."

## Use case

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.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Trello:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "add_checklist_item": {
      "limits": [
        {
          "counter": "add_checklist_item_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on Trello (15)

- `get_card` — Read — https://policylayer.com/tools/artemnikov-trello-mcp/get-card.md
- `list_board_members` — Read — https://policylayer.com/tools/artemnikov-trello-mcp/list-board-members.md
- `list_boards` — Read — https://policylayer.com/tools/artemnikov-trello-mcp/list-boards.md
- `list_cards` — Read — https://policylayer.com/tools/artemnikov-trello-mcp/list-cards.md
- `list_labels` — Read — https://policylayer.com/tools/artemnikov-trello-mcp/list-labels.md
- `list_lists` — Read — https://policylayer.com/tools/artemnikov-trello-mcp/list-lists.md
- `add_checklist` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/add-checklist.md
- `add_comment` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/add-comment.md
- `add_label` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/add-label.md
- `archive_card` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/archive-card.md
- `assign_member` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/assign-member.md
- `create_card` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/create-card.md
- `move_card` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/move-card.md
- `set_check_item` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/set-check-item.md
- `update_card` — Write — https://policylayer.com/tools/artemnikov-trello-mcp/update-card.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=artemnikov-trello-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/artemnikov-trello-mcp