Caldav Calendar
Sync and query CalDAV calendars (iCloud, Google, Fastmail, Nextcloud, etc.) using vdirsyncer + khal. Works on Linux.
Asleep
@asleep123
What This Skill Does
Syncs CalDAV calendars (iCloud, Google, Fastmail, Nextcloud) to local .ics files and enables querying, creating, editing, and deleting events via the khal CLI. Requires vdirsyncer and khal on Linux.
Replaces manually checking multiple calendar web interfaces by providing a single local CLI to sync and manage all CalDAV calendars.
When to Use It
- View today's calendar events from multiple CalDAV providers
- Search for upcoming meetings across all synced calendars
- Create a new event on a specific calendar from the terminal
- Edit an event's summary, time, or description interactively
- Delete an event by searching and selecting it in khal
- Sync local calendar changes back to a remote CalDAV server
Install
$ openclaw skills install @asleep123/caldav-calendarCalDAV Calendar (vdirsyncer + khal)
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
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