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Sync and query CalDAV calendars (iCloud, Google, Fastmail, Nextcloud, etc.) using vdirsyncer + khal. Works on Linux.
Install with Codex or Claude Copy this prompt, paste it into Codex, Claude, or another assistant, and let it review the skill page and install it for you.
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| name | caldav-calendar |
| description | Sync and query CalDAV calendars (iCloud, Google, Fastmail, Nextcloud, etc.) using vdirsyncer + khal. Works on Linux. |
| metadata | {"clawdbot":{"emoji":"📅","os":["linux"],"requires":{"bins":["vdirsyncer","khal"]},"install":[{"id":"apt","kind":"apt","packages":["vdirsyncer","khal"],"bins":["vdirsyncer","khal"],"label":"Install vdirsyncer + khal via apt"}]}} |
vdirsyncer syncs CalDAV calendars to local .ics files. khal reads and writes them.
Always sync before querying or after making changes:
vdirsyncer sync
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
khal search "meeting"
khal search "dentist" --format "{start-date} {title}"
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
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 → quitAfter editing, sync:
vdirsyncer sync
Use khal edit, then press D to delete.
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}
khal caches events in ~/.local/share/khal/khal.db. If data looks stale after syncing:
rm ~/.local/share/khal/khal.db
~/.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:
https://caldav.icloud.com/google_calendar storage typehttps://caldav.fastmail.com/dav/calendars/user/EMAIL/https://YOUR.CLOUD/remote.php/dav/calendars/USERNAME/~/.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
vdirsyncer discover # First time only
vdirsyncer sync