sales

line-harness-oss: Free LINE CRM

Name: line-harness-oss: Free LINE CRM
Author: Shudesu

Get a free LINE Official Account CRM for your startup, with step delivery and automation.

intermediate⏱ 30 minutes💵 Free (self-hosted)

581 stars375 forksTypeScriptGuide quality 8/10 · reviewed Jun 30Updated 9/2/2026100% free · open source

What it is

Use this skill to manage your LINE Official Account customer relationships.

Real use case example

"A solo developer wants to grow her LINE community. She creates a bot that welcomes new users and assigns a score based on their interactions. She sets a rule to follow up with users who need more support."

Best insideClaude DesktopClaude APISelf-hosted

When to use it

•When you need a cost-effective alternative to paid LINE Official Account CRMs
•When you want to automate sales and marketing processes on the LINE platform
•When you need to manage and score leads within your LINE Official Account

Ready-to-paste prompt

Create a new broadcast message by running `npm run broadcast -- --message 'Hello, this is a test broadcast!'`

Heads up: You need to have a LINE Developers account and a verified LINE Official Account to use line-harness-oss, as well as a Redis instance for data storage

Saves to your device

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/line-harness-oss && curl -fsSL https://workflowstacks.com/api/skills/line-harness-oss/claude-skill -o ~/.claude/skills/line-harness-oss/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

How line-harness-oss: Free LINE CRM works

Codeflow

Free to inspect

Line-harness-oss: Free LINE CRM is a very large TypeScript project (~152k lines across 745 code files, plus 80 test files). It is a full software project: use it through its install path rather than reading it end to end. Last commit this month, MIT license, has a test suite.

Size

Very large codebase

~152k lines · 745 code files · days to read — use, don't read

Setup

Developer setup

A real software project. Use it via its install path; don't expect to read it all.

Runs on

Node.js

Needs API keys (.env)

TypeScript 88%JavaScript 11%CSS 1%

Where to start reading

1
README.md
Start here — what it does and how to install it
2
AGENTS.md
The instructions the AI actually follows
3
package.json
Dependencies and the commands it exposes
4
.env.example
The API keys and settings you must provide
5
examples/plugins/create-plugin.mjs
A worked example — copy this to get going

What's in each folder

apps/Sub-packages / plugins502 files

packages/Sub-packages / plugins359 files

docs/Documentation56 files

examples/Examples you can copy7 files

scripts/Helper scripts12 files

.github/CI / automation (GitHub Actions)16 files

.superpowers/Tool / agent settings1 files

READMEHas testsDocumentedCI checksExamples includedMIT licenseUpdated this month

Use with Claude

New

Skip the builder — one click puts this in Claude, Cursor, Antigravity and more.

🛠️ Technical setup

Expect 20–40 minutes in a terminal — or let your AI agent drive it.

Try it instantly — no install

Claude Code

mkdir -p ~/.claude/skills/line-harness-oss && curl -fsSL https://workflowstacks.com/api/skills/line-harness-oss/claude-skill -o ~/.claude/skills/line-harness-oss/SKILL.md

Open in another AI app

Opens the app with this repo with the prompt ready to go — no copy-paste needed.

Connect the whole catalog (MCP)

claude mcp add --transport http workflowstacks https://workflowstacks.com/api/mcp

Adds a WorkflowStacks connector to Claude Code: search and load any skill here by chatting.

Quick Actions

Details

Creator

Shudesu

Language

TypeScript