CalDAV Calendar (vdirsyncer + khal)
SkillProductivitySync and query CalDAV calendars (iCloud, Google, Fastmail, Nextcloud, etc.) using vdirsyncer + khal. Works on Linux.
Available today. Use it from your connected AI after setup.
No other account needed.
Connect ahel once, and every AI you use reads what you have installed.
Then ask your AI: use the CalDAV Calendar (vdirsyncer + khal) skill
What this skill tells your AI
The instructions your AI receives, as published by infometa/workbuddyskills in skills/caldav-calendar/SKILL.md and read by ahel’s review.
vdirsyncer syncs CalDAV calendars to local .ics files. khal reads and writes them.
Sync First
Always sync before querying or after making changes:
vdirsyncer sync
View Events
khal list # Today
khal list today 7d # Next 7 days
khal list tomorrow # Tomorrow
khal list 2026-01-15 2026-01-20 # Date range
khal list -a Work today # Specific calendar
Search
khal search "meeting"
khal search "dentist" --format "{start-date} {title}"
Create Events
khal new 2026-01-15 10:00 11:00 "Meeting title"
khal new 2026-01-15 "All day event"
khal new tomorrow 14:00 15:30 "Call" -a Work
khal new 2026-01-15 10:00 11:00 "With notes" :: Description goes here
After creating, sync to push changes:
vdirsyncer sync
Edit Events (interactive)
khal edit is interactive — requires a TTY. Use tmux if automating:
khal edit "search term"
khal edit -a CalendarName "search term"
khal edit --show-past "old event"
Menu options:
s→ edit summaryd→ edit descriptiont→ edit datetime rangel→ edit locationD→ delete eventn→ skip (save changes, next match)q→ quit
After editing, sync:
vdirsyncer sync
Delete Events
Use khal edit, then press D to delete.
Output Formats
For scripting:
khal list --format "{start-date} {start-time}-{end-time} {title}" today 7d
khal list --format "{uid} | {title} | {calendar}" today
Placeholders: {title}, {description}, {start}, {end}, {start-date}, {start-time}, {end-date}, {end-time}, {location}, {calendar}, {uid}
Caching
khal caches events in ~/.local/share/khal/khal.db. If data looks stale after syncing:
rm ~/.local/share/khal/khal.db
Initial Setup
1. Configure vdirsyncer (~/.config/vdirsyncer/config)
Example for iCloud:
[general]
status_path = "~/.local/share/vdirsyncer/status/"
[pair icloud_calendar]
a = "icloud_remote"
b = "icloud_local"
collections = ["from a", "from b"]
conflict_resolution = "a wins"
[storage icloud_remote]
type = "caldav"
url = "https://caldav.icloud.com/"
username = "your@icloud.com"
password.fetch = ["command", "cat", "~/.config/vdirsyncer/icloud_password"]
[storage icloud_local]
type = "filesystem"
path = "~/.local/share/vdirsyncer/calendars/"
fileext = ".ics"
Provider URLs:
- iCloud:
https://caldav.icloud.com/ - Google: Use
google_calendarstorage type - Fastmail:
https://caldav.fastmail.com/dav/calendars/user/EMAIL/ - Nextcloud:
https://YOUR.CLOUD/remote.php/dav/calendars/USERNAME/
2. Configure khal (~/.config/khal/config)
[calendars]
[[my_calendars]]
path = ~/.local/share/vdirsyncer/calendars/*
type = discover
[default]
default_calendar = Home
highlight_event_days = True
[locale]
timeformat = %H:%M
dateformat = %Y-%m-%d
3. Discover and sync
vdirsyncer discover # First time only
vdirsyncer sync
Signals
- GitHub stars
- 292
- Forks
- 96
- Last commit
- Aug 2026
Others that do the same job
Advanced
- Catalog kind
- skill
- Gateway key
caldav-calendar- Source
- github.com/infometa/workbuddyskills