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Enterprise LINE communication — bots, messages, groups, calendar on Japan's business-grade LINE platform
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| name | line-works-agent |
| description | Enterprise LINE communication — bots, messages, groups, calendar on Japan's business-grade LINE platform |
| author | hanabi-jpn |
| version | 1.0.0 |
| tags | ["messaging","enterprise","line","japan","collaboration","bots","calendar","communication"] |
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║ A G E N T ║
║ Enterprise Messaging from Your Terminal ║
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skill: line-works-agent platform: LINE WORKS protocol: OAuth2 REST lang: en/ja comms: enterprise
Bring the full power of LINE WORKS to your command line -- send messages, manage bots, schedule meetings, and orchestrate enterprise communication without leaving the terminal.
LINE WORKS Agent puts Japan's dominant enterprise messaging platform at your fingertips through a comprehensive CLI. LINE WORKS (formerly known as Works Mobile) serves over 470,000 organizations across Japan and Southeast Asia, functioning as the business-grade evolution of LINE -- the messaging app used by 96 million people in Japan alone. While consumer LINE dominates personal communication, LINE WORKS adds enterprise features: admin-controlled accounts, audit logging, device management, and compliance-grade message retention. This agent gives you API-level access to every communication channel.
The agent supports the full LINE WORKS API surface: sending rich messages (text, images, stickers, flex messages, carousels), managing bot accounts for automated workflows, organizing groups and multi-party rooms, integrating with the built-in calendar for meeting scheduling, managing shared files and drives, and administering organization-wide settings. Japanese businesses rely heavily on LINE WORKS for both internal communication and external client contact, making it a critical integration point. The authentication uses service account JWT flow with RSA private key signing, ensuring secure server-to-server communication. Message delivery is confirmed via read receipts, and the agent can monitor delivery status for broadcast operations across hundreds of recipients.
┌─────────────────────────────────────────────────────────────┐
│ LINE WORKS AGENT ARCHITECTURE │
├─────────────────────────────────────────────────────────────┤
│ │
│ Terminal CLI │
│ │ │
│ ▼ │
│ ┌─────────────┐ ┌───────────────┐ ┌─────────────┐ │
│ │ Command │───▶│ JWT Auth │───▶│ LW API │ │
│ │ Router │ │ (RSA Sign) │ │ api.worksmobile │
│ └─────────────┘ └───────────────┘ │ .com │ │
│ │ └──────┬──────┘ │
│ ▼ │ │
│ ┌─────────────┐ ┌───────────────┐ ┌─────────────┐ │
│ │ Message │ │ Bot │ │ Group │ │
│ │ Composer │ │ Manager │ │ Controller │ │
│ └──────┬──────┘ └───────┬───────┘ └──────┬──────┘ │
│ │ │ │ │
│ └───────────────────┼───────────────────┘ │
│ │ │
│ ▼ │
│ ┌───────────────────┐ │
│ │ Delivery Engine │ │
│ │ + Read Receipts │ │
│ └────────┬──────────┘ │
│ │ │
│ ┌────────────┼────────────┐ │
│ ▼ ▼ ▼ │
│ ┌──────────┐ ┌──────────┐ ┌──────────┐ │
│ │ Calendar │ │ File │ │ Admin │ │
│ │ Sync │ │ Share │ │ Console │ │
│ └──────────┘ └──────────┘ └──────────┘ │
│ │
└─────────────────────────────────────────────────────────────┘
When operating as the LINE WORKS Agent, adhere to the following rules:
LINEWORKS_PRIVATE_KEY, include LINEWORKS_SERVICE_ACCOUNT and LINEWORKS_CLIENT_ID in token requests.LINEWORKS_DOMAIN_ID in API requests to scope to the correct organization.https://www.worksapis.com/v1.0 for all endpoints.--check-conflict is set.--confirm for groups larger than 100 members.--confirm flag; prefer archiving groups over deletion.--utc flag is provided.~/.lw-agent/sent.log with timestamp, recipient, and message hash for audit.lw bot --listen.{{variable}} syntax.| Variable | Required | Default | Description |
|---|---|---|---|
LINEWORKS_CLIENT_ID | Yes | -- | OAuth2 client ID from Developer Console |
LINEWORKS_CLIENT_SECRET | Yes | -- | OAuth2 client secret |
LINEWORKS_SERVICE_ACCOUNT | Yes | -- | Service account ID for server-to-server auth |
LINEWORKS_PRIVATE_KEY | Yes | -- | Path to RSA private key PEM file or the key string |
LINEWORKS_DOMAIN_ID | Yes | -- | Organization domain ID |
Set these in your shell profile or .env file:
export LINEWORKS_CLIENT_ID="lw_client_abc123"
export LINEWORKS_CLIENT_SECRET="lw_secret_xyz789"
export LINEWORKS_SERVICE_ACCOUNT="svc-account@mydomain"
export LINEWORKS_PRIVATE_KEY="/path/to/private_key.pem"
export LINEWORKS_DOMAIN_ID="domain_12345"
lw send -- Send messages to users or groups$ lw send --to tanaka.kenji@mydomain --message "Meeting moved to 15:00. Please confirm."
Message Sent
══════════════════════════════════════════════════════════════
To: Tanaka Kenji (tanaka.kenji@mydomain)
Type: Text
Content: Meeting moved to 15:00. Please confirm.
Sent at: 2026-03-01 09:15:22 JST
Message ID: msg_7f8a9b0c1d2e3f4a
Status: Delivered
Read: Pending
── message sent in 0.21s ──
$ lw send --to tanaka.kenji@mydomain --type flex --template meeting-update \
--vars '{"time":"15:00","room":"5F-A","agenda":"Q4 Review"}'
Rich Message Sent
══════════════════════════════════════════════════════════════
To: Tanaka Kenji (tanaka.kenji@mydomain)
Type: Flex Message (template: meeting-update)
Variables: time=15:00, room=5F-A, agenda=Q4 Review
Sent at: 2026-03-01 09:16:05 JST
Message ID: msg_8a9b0c1d2e3f4a5b
Status: Delivered
── rich message sent in 0.34s ──
lw bot -- Manage bot accounts and automation$ lw bot list
Bot Accounts
══════════════════════════════════════════════════════════════
Bot ID Name Status Members Messages/Day
─────────── ─────────────────── ──────── ──────── ────────────
bot_001 Attendance Bot Active 280 450
bot_002 IT Helpdesk Active 280 120
bot_003 Sales Notifier Active 45 35
bot_004 Meeting Reminder Active 280 85
bot_005 Onboarding Guide Paused 0 0
── 5 registered bots (4 active) ──
$ lw bot send --bot bot_003 --group grp_sales_team \
--message "New lead: Sakura Design Inc. requested a demo. Contact: sato@sakura-design.co.jp"
Bot Message Sent
══════════════════════════════════════════════════════════════
Bot: Sales Notifier (bot_003)
Group: Sales Team (grp_sales_team, 12 members)
Content: New lead: Sakura Design Inc. requested a demo...
Sent at: 2026-03-01 10:22:00 JST
Message ID: bmsg_3c4d5e6f7a8b9c0d
Delivered: 12/12 members
── bot message sent in 0.28s ──
lw groups -- Group and room management$ lw groups list --type internal
Groups (Internal)
══════════════════════════════════════════════════════════════
Group ID Name Members Last Activity Admin
───────────── ────────────────────── ─────── ───────────────── ──────────────
grp_all_staff All Staff 280 2026-03-01 09:45 System
grp_eng_team Engineering Team 18 2026-03-01 09:30 Nakamura H.
grp_sales_team Sales Team 12 2026-03-01 10:22 Suzuki Y.
grp_mgmt Management 8 2026-02-28 18:00 CEO
grp_hr_admin HR & Admin 6 2026-02-28 17:30 Yamamoto D.
grp_project_x Project X (Temp) 15 2026-03-01 08:55 Tanaka K.
── 6 internal groups ──
$ lw groups create --name "Q4 Planning Committee" --members tanaka.kenji,suzuki.yui,sato.mio
Group Created
══════════════════════════════════════════════════════════════
Group ID: grp_q4_planning
Name: Q4 Planning Committee
Members: 3
- Tanaka Kenji (tanaka.kenji@mydomain)
- Suzuki Yui (suzuki.yui@mydomain)
- Sato Mio (sato.mio@mydomain)
Admin: You (creator)
Created: 2026-03-01 10:30:00 JST
[OK] Group created. Bot access: disabled (enable with --allow-bots)
lw calendar -- Calendar and meeting management$ lw calendar --user tanaka.kenji --date 2026-03-01
Calendar: Tanaka Kenji (2026-03-01, Monday)
══════════════════════════════════════════════════════════════
Time Duration Title Room Attendees
──────────── ──────── ──────────────────────────── ─────────── ─────────
09:00-09:30 30min Morning Standup 5F-A 8
10:00-11:00 60min Client Call: Toyota Systems (Online) 3
13:00-14:00 60min Design Review 3F-B 5
15:00-16:30 90min Q4 Planning Kickoff 7F-Main 12
17:00-17:30 30min 1-on-1 with Nakamura (Online) 2
Free slots: 09:30-10:00, 11:00-13:00, 14:00-15:00, 16:30-17:00, 17:30+
── 5 events today ──
$ lw calendar create \
--title "Partnership Discussion" \
--start "2026-03-05 14:00" \
--end "2026-03-05 15:00" \
--attendees tanaka.kenji,suzuki.yui,external@sakura-design.co.jp \
--room "5F-A"
Event Created
══════════════════════════════════════════════════════════════
Event ID: evt_9a8b7c6d5e4f
Title: Partnership Discussion
Date: 2026-03-05 (Thursday) 14:00-15:00 JST
Room: 5F-A (confirmed, no conflict)
Attendees: 3
- Tanaka Kenji (internal) Pending
- Suzuki Yui (internal) Pending
- external@sakura-design.co.jp Invited (external)
Invitations sent via LINE WORKS notification.
── event created in 0.45s ──
lw contacts -- Organization address book$ lw contacts --dept engineering
Address Book: Engineering Department
══════════════════════════════════════════════════════════════
Name Account ID Title Phone (ext.)
──────────────── ────────────────────────── ───────────────────── ────────────
Nakamura Haruto nakamura.h@mydomain Lead Engineer 3042
Tanaka Kenji tanaka.kenji@mydomain Senior Engineer 3045
Sato Mio sato.mio@mydomain Engineer 3048
Kimura Yuto kimura.yuto@mydomain Junior Engineer 3051
Chen Wei chen.wei@mydomain Contract Engineer 3055
── 5 contacts in Engineering ──
lw files -- Shared file and drive management$ lw files list --group grp_project_x --recent 10
Shared Files: Project X
══════════════════════════════════════════════════════════════
Name Size Uploaded By
────────────────────────────── ──────── ──────────────── ──────────────
Q4_proposal_v3.pptx 4.2 MB 2026-03-01 08:55 Tanaka K.
budget_breakdown.xlsx 1.1 MB 2026-02-28 16:20 Kobayashi A.
meeting_minutes_0228.pdf 320 KB 2026-02-28 18:15 Sato M.
architecture_diagram.png 2.8 MB 2026-02-27 14:00 Nakamura H.
vendor_comparison.docx 890 KB 2026-02-26 11:30 Suzuki Y.
timeline_gantt.xlsx 560 KB 2026-02-25 09:45 Tanaka K.
Storage used: 48.2 MB / 5.0 GB (0.9%)
── showing 6 most recent files ──
$ lw files upload --group grp_project_x --file ./status_report_0301.pdf
File Uploaded
══════════════════════════════════════════════════════════════
File: status_report_0301.pdf
Size: 245 KB
Group: Project X (grp_project_x)
File ID: file_2a3b4c5d6e7f
Uploaded: 2026-03-01 10:45:00 JST
Access: Group members (15 users)
[OK] File uploaded and shared with group.
lw tasks -- Task board management$ lw tasks --group grp_project_x
Task Board: Project X
══════════════════════════════════════════════════════════════
TO DO (4):
─────────────────────────────────────────────────────────────
[ ] Finalize vendor selection Due: Mar 5 Assignee: Suzuki Y.
[ ] Update security requirements Due: Mar 7 Assignee: Nakamura H.
[ ] Prepare client demo environment Due: Mar 10 Assignee: Kimura Y.
[ ] Write integration test plan Due: Mar 10 Assignee: Sato M.
IN PROGRESS (2):
─────────────────────────────────────────────────────────────
[~] API gateway implementation Due: Mar 3 Assignee: Tanaka K.
[~] Database migration script Due: Mar 4 Assignee: Chen W.
DONE (6):
─────────────────────────────────────────────────────────────
[x] Requirements gathering Done: Feb 20 Assignee: Tanaka K.
[x] Architecture design doc Done: Feb 22 Assignee: Nakamura H.
[x] Prototype approval Done: Feb 25 Assignee: Suzuki Y.
...and 3 more
── 12 total tasks | 4 todo | 2 in progress | 6 done ──
lw search -- Search messages across channels$ lw search "proposal deadline" --period 2026-02
Message Search: "proposal deadline"
══════════════════════════════════════════════════════════════
Found 4 messages in February 2026:
1. [2026-02-15 11:22] grp_project_x
Tanaka Kenji: The proposal deadline has been moved to March 5th.
Please update your sections by EOD March 3rd.
2. [2026-02-18 09:05] grp_sales_team
Suzuki Yui: Reminder - Sakura Design proposal deadline is Feb 28.
Anyone need help with pricing section?
3. [2026-02-22 16:40] Direct: Sato Mio → Tanaka Kenji
Sato Mio: Can we discuss the proposal deadline extension?
I need 2 more days for the technical appendix.
4. [2026-02-28 08:30] grp_sales_team
Suzuki Yui: Sakura Design proposal submitted before deadline!
Great teamwork everyone.
── 4 results in 0.67s ──
lw broadcast -- Send messages to multiple groups/users$ lw broadcast --groups grp_all_staff \
--message "Office will close early at 16:00 on March 3 due to building maintenance. Please plan accordingly." \
--priority high
Broadcast Preview
══════════════════════════════════════════════════════════════
Recipients: All Staff (280 members)
Priority: High (push notification)
Content: Office will close early at 16:00 on March 3...
Sender: System Admin Bot (bot_001)
Confirm broadcast to 280 recipients? (y/N): y
Sending...
[████████████████████████████████████████] 280/280
Delivery Report:
─────────────────────────────────────────────────────────────
Delivered: 278 (99.3%)
Failed: 2 (inactive accounts)
Read (5min): 142 (50.7%)
Failed recipients logged to ~/.lw-agent/broadcast_failures.log
── broadcast completed in 4.2s ──
lw admin -- Organization administration$ lw admin stats
Organization Statistics
══════════════════════════════════════════════════════════════
Domain: mydomain (domain_12345)
Plan: LINE WORKS Premium
Active Users: 280 / 300 (93.3% utilization)
Usage (February 2026):
─────────────────────────────────────────────────────────────
Messages sent: 124,500
Files shared: 2,340 (18.5 GB)
Calendar events: 1,890
Bot interactions: 8,450
Video calls: 320 (avg duration: 42 min)
Top Active Groups:
All Staff 12,400 messages
Engineering Team 8,200 messages
Sales Team 5,100 messages
Storage:
Used: 245 GB / 1 TB (24.5%)
Growth: +12 GB this month
── admin stats as of 2026-03-01 ──
┌──────────────┐ ┌──────────────┐ ┌──────────────┐
│ CLI User │ │ Bot Webhook │ │ Calendar │
│ (Terminal) │ │ (Incoming) │ │ Event Trig. │
└──────┬───────┘ └──────┬───────┘ └──────┬───────┘
│ │ │
└────────────────────┼────────────────────┘
│
▼
┌─────────────────────┐
│ LINE WORKS Agent │
│ (lw commands) │
└──────────┬──────────┘
│
┌───────────────────┼───────────────────┐
│ │ │
▼ ▼ ▼
┌──────────────┐ ┌──────────────┐ ┌──────────────┐
│ Compose │ │ Route to │ │ Schedule │
│ Message │ │ Bot/Group │ │ Event │
└──────┬───────┘ └──────┬───────┘ └──────┬───────┘
│ │ │
└───────────────────┼───────────────────┘
│
▼
┌─────────────────────┐
│ LINE WORKS API │
│ (Delivery Engine) │
└──────────┬──────────┘
│
┌───────────────────┼───────────────────┐
│ │ │
▼ ▼ ▼
┌──────────────┐ ┌──────────────┐ ┌──────────────┐
│ Push │ │ Read │ │ Audit │
│ Notification│ │ Receipts │ │ Log │
└──────────────┘ └──────────────┘ └──────────────┘
| Error | Cause | Solution |
|---|---|---|
JWT_SIGN_FAILED: Cannot read private key | LINEWORKS_PRIVATE_KEY path wrong or key corrupted | Verify PEM file exists and has correct permissions (chmod 600); regenerate key pair in Developer Console |
AUTH_SCOPE_DENIED: bot.message scope required | Service account lacks messaging permission | Add required scopes in Developer Console > App > OAuth Scopes |
GROUP_NOT_FOUND: grp_xxxx | Group deleted or ID incorrect | List available groups with lw groups list; archived groups require --include-archived |
MESSAGE_TOO_LONG: 10,432 chars exceeds 10,000 limit | Text message exceeds LINE WORKS character limit | Split message with --auto-split flag or shorten content |
FILE_TOO_LARGE: 62 MB exceeds 50 MB limit | Upload exceeds per-file size limit | Compress file or split into parts; use external file share for larger assets |
RATE_LIMIT: 429 on messaging endpoint | Exceeded 600 msg/min rate limit | Agent auto-retries with backoff; reduce broadcast batch size with --batch 100 |
CALENDAR_CONFLICT: Room 5F-A booked 14:00-15:30 | Meeting room double-booking detected | Use lw calendar --free-rooms to find available rooms for the time slot |
DOMAIN_MISMATCH: external@other.com not in domain | Attempting to manage user outside organization | External users can only receive messages, not be managed; use --external flag for cross-domain messaging |
~/.lw-agent/
├── config/
│ └── config.json
├── auth/
│ └── tokens.json
├── cache/
│ ├── contacts.json
│ └── groups.json
├── templates/
│ ├── flex/
│ └── carousel/
├── broadcasts/
│ └── reports/
├── logs/
│ ├── sent.log
│ └── errors.log
└── secrets/
└── .private_key_ref
Private keys are never copied or cached -- only the file path is stored. JWT tokens are encrypted at rest. All message content in the sent log is stored as SHA-256 hashes, not plaintext, to comply with data protection policies.
| Feature | LW Agent (CLI) | LINE WORKS Web | Slack | Microsoft Teams | Chatwork |
|---|---|---|---|---|---|
| Rich messages (Flex) | Yes (template + vars) | Partial | Block Kit | Adaptive Cards | No |
| Bot automation | Full API control | Web console | Full API | Full API | Webhook only |
| CLI messaging | Native | No | Limited (slackcat) | No | No |
| Calendar integration | Built-in | Built-in | Google/Outlook | Native (Outlook) | No |
| File sharing | Upload/download CLI | Web upload | Drag-drop | Drag-drop | Upload |
| Task boards | Group tasks | Group tasks | No (use Asana) | Planner | Task feature |
| Read receipts | Per-message tracking | Per-message | No | Partial | Read flag |
| External contacts | Yes (cross-domain) | Yes | Connect channels | Guest access | Contact rooms |
| Japanese localization | Native | Native | Basic | Basic | Native |
| Organization admin | Full CLI control | Web console | Web console | Admin center | Web console |
| Broadcast + reports | Batch + delivery stats | Manual | Channel post | Channel post | Group msg |
| Setup time | 5 minutes | N/A | N/A | N/A | N/A |
Q1: How do I set up service account authentication? In the LINE WORKS Developer Console, create a new App, enable the Service Account, generate an RSA key pair, download the private key PEM file, and set the environment variables as described above.
Q2: Can I send messages to external LINE WORKS users?
Yes. Use --external flag with the full email address. The recipient's organization must allow external messaging. External contacts appear in a separate address book section.
Q3: How do Flex Messages work?
Flex Messages are rich, structured messages (like cards). Define templates in ~/.lw-agent/templates/ as JSON, then reference them with --template name --vars '{}'. The agent validates template structure before sending.
Q4: Can bots respond to user messages automatically?
Yes. Use lw bot --listen --bot bot_001 --port 8080 to start a local webhook server. Configure the callback URL in Developer Console to point to your server (use ngrok for development).
Q5: Is message content stored locally? No. The sent log stores only message metadata (recipient, timestamp, hash). Actual message content is stored on LINE WORKS servers per your organization's retention policy.
Q6: Can I schedule messages for later delivery?
Yes. Use --schedule "2026-03-05 09:00" to queue a message for future delivery. The agent uses a local scheduler that must be running (lw daemon start).
Q7: How do I manage multiple LINE WORKS organizations?
Use profiles: lw config --profile org-b --domain-id domain_67890. Switch between profiles with --profile org-b on any command.
Q8: What sticker packages are available?
LINE WORKS supports a subset of LINE stickers. Use lw stickers --list to see available packages. Custom stickers require LINE WORKS Premium plan.
Q9: Can I export chat history for compliance?
Admins can export message logs with lw admin export --type messages --period 2026-02. This requires admin-level API scope and complies with Japan's e-document storage requirements (denshi bunsho hozon hou).
Q10: How do I integrate with other tools (Salesforce, Jira)?
Use bot webhooks to bridge LINE WORKS with external services. The agent can pipe incoming bot messages to shell commands: lw bot --listen | process_webhook.sh.
Q11: What happens if a broadcast partially fails?
The delivery report lists all failed recipients with error reasons. Use lw broadcast --retry --from broadcast_report_20260301.json to retry only failed deliveries.
Q12: Can I use LINE WORKS Agent in CI/CD pipelines?
Absolutely. The agent runs headlessly with environment variable authentication. Common use case: lw send --group grp_eng_team --message "Deploy v2.3.1 complete" in your deployment script.