Calendar Reminders (gcalcli + CalDAV)

Provides a config-driven wrapper around gcalcli plus optional CalDAV integration to generate JSON reminder plans for scheduling one-shot OpenClaw reminders.

gcalcli calendar wrapper + reminder planner

This skill provides:

• scripts/calendar — wrapper around gcalcli
• scripts/calendar_reminder_plan.py — produces a JSON plan for reminder scheduling
• references/openclaw-calendar.example.json — example config format

Config

Copy the example config to a private location and edit it:

• Default path: ~/.config/openclaw/calendar.json
• Override with env: OPENCLAW_CALENDAR_CONFIG=/path/to/calendar.json

Requirements

• Required: python3, gcalcli
• Optional (for CalDAV/iCloud): vdirsyncer, khal

Security notes (why ClawHub may flag this)

This skill invokes external binaries and is config-driven.

• The planner runs gcalcli/khal using subprocess.check_output([...], shell=False) (argument-list form; safe against shell injection from event titles).
• If you wire a cron job to run vdirsyncerSyncCommand, make sure you run it as an argv list (subprocess.run(cmd_list, shell=False)), not as a shell string.
• Only point gcalcliPath / khalBin to trusted binaries (prefer absolute paths). Don’t run untrusted paths.

Auth (Google)

gcalcli requires OAuth. On headless servers you may need SSH port-forwarding. The wrapper uses --noauth_local_server to print instructions.

Reminder planning

The planner outputs a JSON blob describing reminders to schedule. A separate cron job (or an agent turn) can read it and create one-shot OpenClaw reminders.

Defaults:

• Ignore birthdays.
• Timed events are considered important.
• All-day events only trigger reminders if their title matches configured keywords.

Wiring a daily reminder scheduler (OpenClaw)

Create a daily cron job (e.g. 00:05 local time) that:

1. If CalDAV is enabled in config, runs the configured vdirsyncer sync command.
2. Runs scripts/calendar_reminder_plan.py to get a JSON plan.
3. For each planned reminder, creates a one-shot OpenClaw systemEvent reminder at reminderAtUtc.
4. Writes a small state file so you don’t schedule duplicates.

(Our skill intentionally provides the wrapper + planner; scheduling is left to your cron/agent wiring.)