What is an AI prep checklist?

An AI prep checklist is a list of preparation tasks for a specific calendar event, generated automatically by a language model from the event’s title, category, and timing. For a dentist appointment, the checklist surfaces “bring insurance card.” For a dinner party, it surfaces “pick up wine.” Composed generates these via the generate-checklist edge function backed by Claude.

How does an AI prep checklist work?

When you create an event, the app sends the title, category, date, and days-until-event to a language model. The model returns a short list of preparation items appropriate to that event type and lead time. A flight one week out gets “check passport expiration” and “online check-in opens 24 hours before.” A flight one day out gets “confirm boarding pass” and “pack liquids in TSA-compliant containers.” The checklist is tied to the event, so completing items, snoozing them, or adding your own all stays scoped to that single calendar entry.

What’s the difference between an AI prep checklist and a manual to-do list?

A manual to-do list lives in a separate app and isn’t connected to the calendar entry. You write the tasks yourself, you remember to surface them, and you delete them after the event. An AI prep checklist is born attached to the event, populated by the model’s domain knowledge (“bring insurance card” for a dentist visit is something the model knows; you don’t have to think of it), and disappears with the event when it’s done. It is a one-time preparation list, not a permanent project to-do list.

Why does an AI prep checklist matter?

Most missed appointments aren’t missed because the time was forgotten — the calendar reminder fired. They’re missed at the edges: forgetting the insurance card, the passport, the wine, the workout clothes, the laptop charger. A prep checklist surfaces those edge items in the actual preparation window, when you can still do something about them.

Get Composed

Composed generates AI prep checklists automatically for every event. Download Composed on the App Store and try it free.

Related: voice-to-calendar · calendar prep tasks · three-layer reminders · screenshot-to-calendar