calctl Skill

Native macOS Calendar CLI built with EventKit. No AppleScript, no osascript.

When to invoke

Trigger when user says or asks for:

• "calendar CLI"
• "apple calendar from terminal"
• "calctl"
• "event CLI for macOS"
• "list calendar events from command line"
• "create calendar event from terminal"
• "add recurring event"
• "schedule recurring calendar"
• "weekly meeting in calendar"
• "every monday calendar event"

How to use

The calctl CLI is already built at https://github.com/christianteohx/calctl. Clone and build it, or install via Homebrew.

Install (Homebrew, recommended):

brew install christianteohx/tap/calctl

Direct binary:

curl -fsSL https://github.com/christianteohx/calctl/releases/latest/download/calctl -o ~/bin/calctl
chmod +x ~/bin/calctl

Build from source (macOS 13+, Swift 6.0+):

git clone https://github.com/christianteohx/calctl
cd calctl
swift build
.build/release/calctl \x3Ccommand>

First run: macOS will prompt for Calendar permission. Grant it in System Settings > Privacy & Security > Calendars > Terminal.

Commands

calctl status                    check calendar access status
calctl authorize                 trigger permission prompt
calctl list                      list all calendars (with id, title, source)
calctl today [--attendees]       show today's events (--attendees shows invitees)
calctl tomorrow [--attendees]     show tomorrow's events (--attendees shows invitees)
calctl week [--attendees]        show this week's events (--attendees shows invitees)
calctl date YYYY-MM-DD [--attendees]  show events for a specific date
calctl add --title ... --start ... --end ... [--recurrence RULE]  create an event
calctl edit --id \x3Cid> ...       edit an event
calctl delete --id \x3Cid>          delete an event
--calendar \x3Cname>                filter by calendar name

Recurring events

Add --recurrence with iCalendar RRULE syntax:

calctl add --title "Weekly Standup" --start "2026-04-14 09:00" --end "2026-04-14 09:30" --recurrence "FREQ=WEEKLY;INTERVAL=1;BYDAY=MO"
calctl add --title "Daily Reminder" --start "2026-04-15 08:00" --end "2026-04-15 08:05" --recurrence "FREQ=DAILY"
calctl add --title "Monthly Report" --start "2026-05-01 10:00" --end "2026-05-01 11:00" --recurrence "FREQ=MONTHLY;BYMONTHDAY=1"

Supported RRULE keys: FREQ (DAILY/WEEKLY/MONTHLY/YEARLY), INTERVAL, BYDAY, BYMONTHDAY, COUNT, UNTIL.

Attendees

Use --attendees on today, tomorrow, week, or date commands to show attendee information:

calctl today --attendees
calctl week --attendees

Shows each attendee's name/email and participation status (accepted, pending, declined, tentative, etc.). Events with no attendees show no attendee data. Available in both plain text and JSON output.