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# Tick a checklist item

> Tick or untick one checklist item. Input schema, a tools/call example and an example result.

Source: https://cotlet.dev/docs/mcp/habitica/tick_checklist_item

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Tick or untick one checklist item.

Habitica MCP tools: https://cotlet.dev/docs/mcp/habitica.md

MCP tool: `habitica_write → tick_checklist_item`

Access: write.

Flips the item between done and not done and returns the checklist. It changes only your own task and a second call undoes it, so it does not ask for OK by default.

## Parameters

| Name | Type | Required | Description |
|---|---|---|---|
| `task_id` | string | yes | Task ID from list_tasks. |
| `item_id` | string | yes | Checklist item ID from get_task. |

## tools/call

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "habitica_write",
    "arguments": {
      "operation": "tick_checklist_item",
      "arguments": {
        "task_id": "task_8c41d2",
        "item_id": "item_8c41d2"
      }
    }
  }
}
```

## Example response

```json
{
  "content": [
    {
      "type": "text",
      "text": "{ ... same JSON as structuredContent ... }"
    }
  ],
  "structuredContent": {
    "task_id": "4e0b9c12-77a3-4d0f-8b1e-2a6f9d3c5e70",
    "item_id": "c2",
    "done": true
  },
  "isError": false
}
```

Previous: [Add a checklist item](https://cotlet.dev/docs/mcp/habitica/add_checklist_item.md)
Next: [Hatch a pet](https://cotlet.dev/docs/mcp/habitica/hatch_pet.md)

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