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sickn33/agentic-awesome-skills/google-calendar-automation

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version: "1.0.0" name: google-calendar-automation description: "Lightweight Google Calendar integration with standalone OAuth authentication. No MCP server required." license: Apache-2.0 risk: critical source: community date_added: "2026-09-04" metadata: author: sanjay3290 version: "1.0"

Google Calendar

Lightweight Google Calendar integration with standalone OAuth authentication. No MCP server required.

⚠️ Requires Google Workspace account. Personal Gmail accounts are not supported.

When to Use

You need to list, create, inspect, or update Google Calendar events from local scripts.
The task requires OAuth-backed calendar automation without standing up an MCP server.
You need quick operational access to calendars, schedules, attendees, or event details in a Workspace environment.

First-Time Setup

Authenticate with Google (opens browser):

bash

python scripts/auth.py login

Check authentication status:

bash

python scripts/auth.py status

Logout when needed:

bash

python scripts/auth.py logout

Commands

All operations via scripts/gcal.py. Auto-authenticates on first use if not logged in.

List Calendars

bash

python scripts/gcal.py list-calendars

List Events

bash

# List events from primary calendar (default: next 30 days)
python scripts/gcal.py list-events
 
# List events with specific time range
python scripts/gcal.py list-events --time-min 2024-01-15T00:00:00Z --time-max 2024-01-31T23:59:59Z
 
# List events from a specific calendar
python scripts/gcal.py list-events --calendar "work@example.com"
 
# Limit results
python scripts/gcal.py list-events --max-results 10

Get Event Details

bash

python scripts/gcal.py get-event EVENT_ID
python scripts/gcal.py get-event EVENT_ID --calendar "work@example.com"

Create Event

bash

# Basic event
python scripts/gcal.py create-event "Team Meeting" "2024-01-15T10:00:00Z" "2024-01-15T11:00:00Z"
 
# Event with description and location
python scripts/gcal.py create-event "Team Meeting" "2024-01-15T10:00:00Z" "2024-01-15T11:00:00Z" \
    --description "Weekly sync" --location "Conference Room A"
 
# Event with attendees
python scripts/gcal.py create-event "Team Meeting" "2024-01-15T10:00:00Z" "2024-01-15T11:00:00Z" \
    --attendees user1@example.com user2@example.com
 
# Event on specific calendar
python scripts/gcal.py create-event "Meeting" "2024-01-15T10:00:00Z" "2024-01-15T11:00:00Z" \
    --calendar "work@example.com"

Update Event

bash

# Update event title
python scripts/gcal.py update-event EVENT_ID --summary "New Title"
 
# Update event time
python scripts/gcal.py update-event EVENT_ID --start "2024-01-15T14:00:00Z" --end "2024-01-15T15:00:00Z"
 
# Update multiple fields
python scripts/gcal.py update-event EVENT_ID \
    --summary "Updated Meeting" --description "New agenda" --location "Room B"
 
# Update attendees
python scripts/gcal.py update-event EVENT_ID --attendees user1@example.com user3@example.com

Delete Event

bash

python scripts/gcal.py delete-event EVENT_ID
python scripts/gcal.py delete-event EVENT_ID --calendar "work@example.com"

Find Free Time

Find the first available slot for a meeting with specified attendees:

bash

# Find 30-minute slot for yourself
python scripts/gcal.py find-free-time \
    --attendees me \
    --time-min "2024-01-15T09:00:00Z" \
    --time-max "2024-01-15T17:00:00Z" \
    --duration 30
 
# Find 60-minute slot with multiple attendees
python scripts/gcal.py find-free-time \
    --attendees me user1@example.com user2@example.com \
    --time-min "2024-01-15T09:00:00Z" \
    --time-max "2024-01-19T17:00:00Z" \
    --duration 60

Respond to Event Invitation

bash

# Accept an invitation
python scripts/gcal.py respond-to-event EVENT_ID accepted
 
# Decline an invitation
python scripts/gcal.py respond-to-event EVENT_ID declined
 
# Mark as tentative
python scripts/gcal.py respond-to-event EVENT_ID tentative
 
# Respond without notifying organizer
python scripts/gcal.py respond-to-event EVENT_ID accepted --no-notify

Date/Time Format

All times use ISO 8601 format with timezone:

UTC: 2024-01-15T10:30:00Z
With offset: 2024-01-15T10:30:00-05:00 (EST)

Calendar ID Format

Primary calendar: Use primary or omit the --calendar flag
Other calendars: Use the calendar ID from list-calendars (usually an email address)

Token Management

Tokens stored securely using the system keyring:

macOS: Keychain
Windows: Windows Credential Locker
Linux: Secret Service API (GNOME Keyring, KDE Wallet, etc.)

Service name: google-calendar-skill-oauth

Tokens are automatically refreshed when expired using Google's cloud function.

Limitations

Use this skill only when the task clearly matches the scope described above.
Do not treat the output as a substitute for environment-specific validation, testing, or expert review.
Stop and ask for clarification if required inputs, permissions, safety boundaries, or success criteria are missing.

All versions