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Lark Calendar

  • 9 installs
  • 33 repo stars
  • Updated April 26, 2026
  • bighardperson/computer-science-skills-collection

lark-calendar is a Claude skill that creates, updates, and deletes calendar events and tasks in Lark (Feishu) with automatic name-to-user_id resolution.

About

This skill creates, updates, and deletes calendar events and tasks in Lark (Feishu) through Node scripts. It auto-resolves employee names to Lark user_ids using a bundled directory and manages attendees and task members. It requires Feishu app credentials and defaults to the Asia/Singapore timezone.

  • Full CRUD for Lark (Feishu) calendar events and tasks
  • Auto-resolves employee names to Lark user_ids via a built-in directory
  • Node scripts for create/update/delete events, tasks, attendees, and members

Lark Calendar by the numbers

  • 9 all-time installs (skills.sh)
  • Ranked #1,497 of 2,719 Automation & Workflows skills by installs in the Skillselion catalog
  • Data as of Jul 30, 2026 (Skillselion catalog sync)
At a glance

lark-calendar capabilities & compatibility

Requires Feishu app credentials (FEISHU_APP_ID/FEISHU_APP_SECRET); Lark API is free to call.

Capabilities
calendar crud · task crud · attendee management
Works with
outlook
Use cases
project management · planning
Runs
Runs locally
Pricing
Bring your own API key
From the docs

What lark-calendar says it does

Create, update, and delete calendar events and tasks in Lark (Feishu).
SKILL.md
Boyang is always added
SKILL.md
npx skills add https://github.com/bighardperson/computer-science-skills-collection --skill lark-calendar

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Listed on Skillselion
Installs9
repo stars33
Last updatedApril 26, 2026
Repositorybighardperson/computer-science-skills-collection

What it does

Create, update, and delete Lark (Feishu) calendar events and tasks with name-to-user_id resolution.

Who is it for?

Teams on Lark/Feishu automating calendar events and task creation from a chat agent.

Skip if: Organizations not using Lark/Feishu.

When should I use this skill?

You need to create, update, or delete a Lark calendar event or task, or manage attendees.

By the numbers

  • default timezone Asia/Singapore
  • bundled directory of ~22 employees for name resolution

Files

SKILL.mdMarkdownGitHub ↗

Lark Calendar & Task Skill

Create, update, and delete calendar events and tasks in Lark (Feishu).

Overview

This skill provides full CRUD operations for:

  • Calendar Events — meetings, appointments, schedules
  • Tasks (Todo) — action items with deadlines

Configuration

Required Environment Variables (in .secrets.env):

FEISHU_APP_ID=cli_a9f52a4ed7b8ded4
FEISHU_APP_SECRET=<your-app-secret>

Default Calendar: feishu.cn_caF80RJxgGcbBGsQx64bCh@group.calendar.feishu.cn (Claw calendar)

Default Timezone: Asia/Singapore

Quick Reference

Create Calendar Event

node skills/lark-calendar/scripts/create-event.mjs \
  --title "Meeting with Team" \
  --description "Discuss Q2 roadmap" \
  --start "2026-02-03 14:00:00" \
  --end "2026-02-03 15:00:00" \
  --attendees "Boyang,RK" \
  --location "Meeting Room A"

Parameters:

ParamRequiredDescription
--titleEvent title
--descriptionEvent description
--startStart time (YYYY-MM-DD HH:MM:SS)
--endEnd time (YYYY-MM-DD HH:MM:SS)
--attendeesComma-separated names (auto-resolved to user_ids)
--attendee-idsComma-separated user_ids directly
--locationEvent location
--timezoneTimezone (default: Asia/Singapore)
--calendarCalendar ID (uses default if omitted)

Update Calendar Event

node skills/lark-calendar/scripts/update-event.mjs \
  --event-id "f9900f6b-b472-4b17-a818-7b5584abdc37_0" \
  --title "Updated Title" \
  --start "2026-02-03 15:00:00" \
  --end "2026-02-03 16:00:00"

Delete Calendar Event

node skills/lark-calendar/scripts/delete-event.mjs \
  --event-id "f9900f6b-b472-4b17-a818-7b5584abdc37_0"

List Calendar Events

# List events for next 7 days
node skills/lark-calendar/scripts/list-events.mjs

# List events in date range
node skills/lark-calendar/scripts/list-events.mjs \
  --start "2026-02-01" \
  --end "2026-02-28"

Create Task

node skills/lark-calendar/scripts/create-task.mjs \
  --title "Review PR #123" \
  --description "Code review for authentication module" \
  --due "2026-02-05 18:00:00" \
  --assignees "Boyang,jc"

Parameters:

ParamRequiredDescription
--titleTask title
--descriptionTask description
--dueDue date (YYYY-MM-DD HH:MM:SS)
--assigneesComma-separated names (auto-resolved)
--assignee-idsComma-separated user_ids directly
--timezoneTimezone (default: Asia/Singapore)

Update Task

node skills/lark-calendar/scripts/update-task.mjs \
  --task-id "35fc5310-a1b1-49c7-be75-be631d3079ee" \
  --title "Updated Task" \
  --due "2026-02-06 18:00:00"

Delete Task

node skills/lark-calendar/scripts/delete-task.mjs \
  --task-id "35fc5310-a1b1-49c7-be75-be631d3079ee"

Manage Event Attendees

# Add attendees
node skills/lark-calendar/scripts/manage-attendees.mjs \
  --event-id "xxx" --add "RK,jc"

# Remove attendees  
node skills/lark-calendar/scripts/manage-attendees.mjs \
  --event-id "xxx" --remove "jc"

Manage Task Members

# Add members
node skills/lark-calendar/scripts/manage-task-members.mjs \
  --task-id "xxx" --add "RK,jc"

# Remove members
node skills/lark-calendar/scripts/manage-task-members.mjs \
  --task-id "xxx" --remove "jc"

Employee Directory

Names are auto-resolved to Lark user_ids. Supported names:

user_idNamesRole
dgg163e1Boyang, by, 博洋Boss
gb71g28bRKLeadership, R&D
53gc5724DingLeadership, Operations
217ec2c2CharlineHR
f2bfd283曾晓玲, xiaolingHR
f26fe45dHHResearch
45858f91zan, Eva-
7f79b6deIssacOperations
1fb2547g王铁柱Operations
e5997acd尼克, NicoOperations
438c3c1fIvanOperations
17g8bab2DodoR&D, Product
73b45ec5启超, QiChaoShiR&D, Design
d1978a39chenglinR&D, Frontend
ef6fc4a7冠林, GreenR&D, Frontend
b47fa8f2sixian, sx, Sixian-YuR&D, Frontend
934fbf15jc, sagiri, 俊晨R&D, Backend
8c4aad87大明, damingR&D, Backend
ab87g5e1Emily YobalIntern
55fa337fjingda, 景达Intern
333c7cf1刘纪源, 纪源, AidenIntern

Business Rules

1. Boyang is always added as attendee to every calendar event (automatic) 2. Timezone handling: Uses IANA identifiers (e.g., Asia/Singapore, Asia/Shanghai) 3. Time format: Always YYYY-MM-DD HH:MM:SS 4. user_id vs open_id: This skill uses user_id format (e.g., dgg163e1), NOT open_id (e.g., ou_xxx)

Programmatic Usage

import { createEvent, updateEvent, deleteEvent } from './skills/lark-calendar/lib/calendar.mjs';
import { createTask, updateTask, deleteTask } from './skills/lark-calendar/lib/task.mjs';
import { resolveNames } from './skills/lark-calendar/lib/employees.mjs';

// Create event
const result = await createEvent({
  title: 'Team Sync',
  description: 'Weekly standup',
  startTime: '2026-02-03 10:00:00',
  endTime: '2026-02-03 10:30:00',
  attendeeIds: ['dgg163e1', 'gb71g28b'],
  location: 'Zoom',
  timezone: 'Asia/Singapore'
});

// Create task
const task = await createTask({
  title: 'Review document',
  description: 'Q2 planning doc',
  dueTime: '2026-02-05 18:00:00',
  assigneeIds: ['dgg163e1'],
  timezone: 'Asia/Singapore'
});

Lark API Reference

Permissions Required

Ensure your Lark app has these scopes:

  • calendar:calendar — Read/write calendar ✅ (already enabled)
  • calendar:calendar:readonly — Read calendar ✅ (already enabled)
  • task:task:write — Write tasks ⚠️ (needs to be added for task creation)
  • task:task:read — Read tasks
  • contact:user.employee_id:readonly — Read user info ✅ (already enabled)

To add permissions: 1. Go to Lark Open Platform 2. Add scopes: task:task:write, contact:contact:readonly (for dynamic employee lookup) 3. Re-publish the app version

Note: Without contact:contact:readonly, the skill uses a static fallback employee list. Update lib/employees.mjs when team changes.

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