update_reminder

macOS

Purpose

Updates an existing reminder in Reminders.app. Change the title, due date, notes, priority, or move it to another list (list_name). Get reminder_id from list_reminders. Requires confirm=true. IMPORTANT: moving to a list in a DIFFERENT account (e.g. iCloud ↔ Exchange) recreates the reminder, so its id changes — the response then has id_changed: true, the new id in reminder_id and the dead one in previous_reminder_id. Always take reminder_id from the response before any follow-up call.

Required inputs

• reminder_id — Reminder identifier from list_reminders

Permissions and confirmation

Explicit confirmation parameter: inspect the schema and tool description before any real call. The documentation example keeps confirm false. Obtain user authorization before performing the action.

• Use only the apps, accounts and resources authorized by the user on this platform. Consult this tool's platform-specific description for its connection and permission requirements; this catalog does not assert additional OAuth scopes or OS entitlements.

{
  "properties": {
    "confirm": {
      "description": "Must be true to apply changes",
      "type": "boolean"
    },
    "due_date": {
      "description": "New ISO 8601 due date. Pass empty string to clear (optional)",
      "type": "string"
    },
    "list_name": {
      "description": "Move the reminder to this list (a name from get_reminder_folders) (optional). Moving to a list in ANOTHER account recreates the reminder and CHANGES its id — read the new one from reminder_id in the response (id_changed: true).",
      "type": "string"
    },
    "notes": {
      "description": "New notes text (optional)",
      "type": "string"
    },
    "priority": {
      "description": "Priority: none | low | medium | high (optional)",
      "enum": [
        "none",
        "low",
        "medium",
        "high"
      ],
      "type": "string"
    },
    "reminder_id": {
      "description": "Reminder identifier from list_reminders",
      "type": "string"
    },
    "title": {
      "description": "New title (optional)",
      "type": "string"
    }
  },
  "required": [
    "reminder_id"
  ],
  "type": "object"
}

Documentation example

Do not execute this example. These concrete inputs refer to a fictional demonstration dataset. Resolve real handles and obtain user authorization before any real call.

{
  "confirm": false,
  "reminder_id": "demo-reminder-001",
  "title": "Review the launch checklist"
}