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sundial-org/awesome-openclaw-skills265 installs

caldav-calendar

Sync and query CalDAV calendars (iCloud, Google, Fastmail, Nextcloud, etc.) using vdirsyncer + khal. Works on Linux.

How do I install this agent skill?

npx skills add https://github.com/sundial-org/awesome-openclaw-skills --skill caldav-calendar
view source ↗

Is this agent skill safe to install?

  • Gen Agent Trust Hubpass

    The skill is safe for its intended purpose of managing CalDAV calendars using standard Linux tools (vdirsyncer and khal). It correctly suggests storing secrets in local files rather than plain text. A minor inherent risk exists regarding indirect prompt injection from malicious data contained within synced calendar events.

  • Socketpass

    No alerts

  • Snykwarn

    Risk: MEDIUM · 1 issue

  • Runlayerpass

    1/1 file flagged

  • ZeroLeakspass

    Score: 93/100 · 2 sections analyzed

What does this agent skill do?

CalDAV 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 summary
  • d → edit description
  • t → edit datetime range
  • l → edit location
  • D → delete event
  • n → 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_calendar storage 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

Add the canonical catalog link to the repository README so users can inspect current installs and available audits. The publishing guide covers the complete discovery path.

<a href="https://skillzs.dev/skills/sundial-org/awesome-openclaw-skills/caldav-calendar">View caldav-calendar on skillZs</a>