```trycmd
$ run.sh things --today-ts 1699920000 --now-ts 1700000111.0 edit A7h5eCi24RvAWKC3Hv3muf --add-checklist 'Step three'
✓ Edited Task with checklist  A7h5eCi24RvAWKC3Hv3muf (add-checklist)
{
  "ancestor_index": 0,
  "changes": {
    "[..]": {
      "e": "ChecklistItem3",
      "p": {
        "cd": 1700000111.0,
        "ix": 2,
        "md": 1700000111.0,
        "ss": 0,
        "ts": [
          "A7h5eCi24RvAWKC3Hv3muf"
        ],
        "tt": "Step three"
      },
      "t": 0
    }
  }
}

```