Calendar Reminders (gcalcli + CalDAV)

---

name: calendar-reminders description: Calendar reminders pipeline: config-driven wrapper around gcalcli (Google Calendar) plus optional CalDAV source via vdirsyncer+khal, and a reminder planner that outputs a JSON plan for 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.)

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