accli
This skill should be used when interacting with Apple Calendar on macOS. Use it for listing calendars, viewing events, creating/updating/deleting calendar events, and checking availability/free-busy times. Triggers on requests like "check my calendar", "schedule a meeting", "what's on my schedule", "am I free tomorrow", or any calendar-related operations.
When & Why to Use This Skill
The Apple Calendar CLI (accli) skill enables Claude to seamlessly manage your macOS Apple Calendar through natural language. It provides comprehensive capabilities to list calendars, query specific events, and perform full CRUD (Create, Read, Update, Delete) operations. By integrating free/busy availability checks, it transforms Claude into a proactive scheduling assistant that optimizes your time management and meeting workflows directly from the desktop.
Use Cases
- Automated Scheduling: Use natural language commands like 'Schedule a sync with the dev team for 1 hour tomorrow afternoon' to find slots and create events.
- Daily Agenda Retrieval: Quickly get a summary of your day by asking 'What does my schedule look like today?' or 'Am I free for a coffee chat at 3 PM?'
- Cross-Calendar Coordination: Check availability across multiple calendars (e.g., Work and Personal) to identify conflicts and find the best time for new appointments.
- Event Maintenance: Effortlessly update meeting locations, descriptions, or timings, and delete cancelled events without manually opening the Calendar app.
- Availability Auditing: Use the free/busy command to export JSON-formatted availability data for complex planning or integration with other productivity tools.
| name | accli |
|---|---|
| description | This skill should be used when interacting with Apple Calendar on macOS. Use it for listing calendars, viewing events, creating/updating/deleting calendar events, and checking availability/free-busy times. Triggers on requests like "check my calendar", "schedule a meeting", "what's on my schedule", "am I free tomorrow", or any calendar-related operations. |
Apple Calendar CLI (accli)
Installation
npm install -g @joargp/accli
Requirements: macOS only (uses JavaScript for Automation)
Overview
The accli tool provides command-line access to macOS Apple Calendar. It enables listing calendars, querying events, creating/updating/deleting events, and checking availability across calendars.
Quick Reference
DateTime Formats
- Timed events: YYYY-MM-DDTHH:mm or YYYY-MM-DDTHH:mm:ss
- All-day events: YYYY-MM-DD
Global Options
- --json - Output as JSON (recommended for parsing)
- --help - Show help for any command
Commands
List Calendars
accli calendars [--json]
Lists all available calendars with names and persistent IDs. Run this first to discover available calendars and their IDs.
List Events
accli events <calendarName> [options]
Options:
- --calendar-id
- Persistent calendar ID (recommended over name) - --from
- Start of range (default: now) - --to
- End of range (default: from + 7 days) - --max
- Maximum events to return (default: 50) - --query
- Case-insensitive filter on summary/location/description
- --json - Output JSON
Examples:
# Events from Work calendar for this week
accli events Work --json
# Events in January
accli events Work --from 2025-01-01 --to 2025-01-31 --json
# Search for specific events
accli events Work --query "standup" --max 10 --json
Get Single Event
accli event <calendarName> <eventId> [--json]
Retrieves details for a specific event by its ID.
Create Event
accli create <calendarName> --summary <s> --start <datetime> --end <datetime> [options]
Required Options:
- --summary
- Event title - --start
- Start time - --end
- End time
Optional:
- --location
- Event location - --description
- Event description - --all-day - Create an all-day event
- --json - Output JSON
Examples:
# Create a timed meeting
accli create Work --summary "Team Standup" --start 2025-01-15T09:00 --end 2025-01-15T09:30 --json
# Create an all-day event
accli create Personal --summary "Vacation" --start 2025-07-01 --end 2025-07-05 --all-day --json
# Create with location and description
accli create Work --summary "Client Meeting" --start 2025-01-15T14:00 --end 2025-01-15T15:00 \
--location "Conference Room A" --description "Q1 planning discussion" --json
Update Event
accli update <calendarName> <eventId> [options]
Options (all optional - only provide what to change):
- --summary
- New title - --start
- New start time - --end
- New end time - --location
- New location - --description
- New description - --all-day - Convert to all-day event
- --no-all-day - Convert to timed event
- --json - Output JSON
Example:
accli update Work event-id-123 --summary "Updated Meeting Title" --start 2025-01-15T15:00 --end 2025-01-15T16:00 --json
Delete Event
accli delete <calendarName> <eventId> [--json]
Permanently deletes an event. Confirm with user before executing.
Check Free/Busy
accli freebusy --calendar <name> --from <datetime> --to <datetime> [options]
Options:
- --calendar
- Calendar name (can repeat for multiple calendars) - --calendar-id
- Persistent calendar ID (can repeat) - --from
- Start of range (required) - --to
- End of range (required) - --json - Output JSON
Shows busy time slots, excluding cancelled, declined, and transparent events.
Examples:
# Check availability across calendars
accli freebusy --calendar Work --calendar Personal --from 2025-01-15 --to 2025-01-16 --json
# Check specific hours
accli freebusy --calendar Work --from 2025-01-15T09:00 --to 2025-01-15T18:00 --json
Configuration
# Set default calendar (interactive)
accli config set-default
# Set default by name
accli config set-default --calendar Work
# Show current config
accli config show
# Clear default
accli config clear
When a default calendar is set, commands automatically use it if no calendar is specified.
Workflow Guidelines
Before Creating Events
- List calendars to get available calendar names/IDs
- Check free/busy to find available time slots
- Confirm event details with user before creating
Best Practices
- Always use --json flag for programmatic parsing
- Prefer --calendar-id over calendar names for reliability
- When querying events, start with reasonable date ranges
- Confirm with user before delete operations
- Use ISO 8601 datetime format consistently
Common Patterns
Find a free slot and schedule:
# 1. Check availability
accli freebusy --calendar Work --from 2025-01-15T09:00 --to 2025-01-15T18:00 --json
# 2. Create event in available slot
accli create Work --summary "Meeting" --start 2025-01-15T14:00 --end 2025-01-15T15:00 --json
View today's schedule:
accli events Work --from $(date +%Y-%m-%d) --to $(date -v+1d +%Y-%m-%d) --json