> ## Documentation Index
> Fetch the complete documentation index at: https://docs.automate.ax/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# Create checklist item

> Add a dated or assigned item to a Trello checklist.

`createCheckItem` adds one item with optional assignment, due time, reminder, and initial completion state.

```ts automations/create-trello-check-item.automation.ts theme={null}
import { automation, onHttpRequest } from "automate.ax"
import { createCheckItem } from "automate.ax/trello"

export default automation("Create Trello checklist item", () => {
  onHttpRequest({ scope: "automation" })
  createCheckItem({
    checklistId: "checklist-id",
    name: "Review release",
    dueReminder: 60,
  })
})
```

`checklistId` and non-empty `name` are required. `completed` defaults to `false`; `position` defaults to `"bottom"` and also accepts `"top"` or a nonnegative number. Optional `dueAt` accepts `Date` or an ISO timestamp with offset; `dueReminder` is an integer of at least `-1`; `memberId` is a stable member ID; `account` defaults to the project binding.

Returns `Signal<TrelloCheckItem>` with stable ID, text, state, position, and nullable date, reminder, and assignee.