Add to Calendar · Watchflows Docs

At a glance

Does: Creates one event in a calendar you pick
Emits: calendarEvent.* plus created
Needs: Full Calendars access, asked for on first run

Set it up

Give it a Title and a Start. End is optional — leave it blank and the event runs an hour. Pick a calendar, or leave that blank for your default one, and add a location, notes, or all-day if you want them.

The inspector for an Add to Calendar node. Title, start, end, calendar.

Every field takes {{variable}}, which is what makes the AI pattern work: hand a message to an AI Prompt, have it return a title plus ISO 8601 start and end, and wire those straight in. "Lunch with Sam next Tuesday at noon" becomes a real event.

The event comes back under calendarEvent.* — the same shape the Calendar Event (Apple) trigger and List Calendar Events emit, so downstream nodes read all three the same way.

Configure

Field	Default	What it does
Title	—	The event's title.
Start	—	ISO 8601, or a date string macOS can read.
End	start + 1 hour	Optional.
Calendar	Default calendar	Which calendar to add to.
Location	—	Optional.
Notes	—	Optional details.
All-Day Event	Off	Makes it an all-day entry.

Output

Every key is available downstream as {{key}}.

Key	Type	Value
`calendarEvent.title`	String	Event title
`calendarEvent.startISO`	String	ISO 8601 start
`calendarEvent.endISO`	String	ISO 8601 end
`calendarEvent.location`	String	Location, empty if none
`calendarEvent.calendarName`	String	The calendar it landed in
`calendarEvent.eventID`	String	EventKit identifier of the new event
`calendarEvent.isAllDay`	Boolean	Whether it is all-day
`calendarEvent.notes`	String	Notes, empty if none
`created`	Boolean	True once the event is in

Example: talk a meeting into the calendar

An Input trigger takes a sentence. An AI node returns a title and ISO 8601 times against a schema. Add to Calendar creates the event.

Three nodes turning a typed sentence into a calendar event.

Paste this into the Flow Builder to get the same flow:

Let me type a sentence like "lunch with Sam next Tuesday at noon", have AI turn it into a title and ISO 8601 start and end, and add it to my calendar.

Good to know

Full Calendars access is required. macOS asks the first time the node runs. If you said no, switch Watchflows on under System Settings → Privacy & Security → Calendars — the node cannot prompt twice.

Give the model a schema. An AI node with an Output Schema requiring title, startISO and endISO is the difference between a reliable date and a sentence that reads like one.