# Setup Mulmobridge Line

> Interactively guide LINE bridge setup — ngrok install, LINE Developers Console config, and bridge startup. Respond in the user's language.

- Skill: `receptron/setup-mulmobridge-line` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add receptron/setup-mulmobridge-line`
- Raw SKILL.md: https://api.skillmd.com/api/skills/receptron/setup-mulmobridge-line/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: receptron (https://skillmd.com/u/receptron)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/receptron/setup-mulmobridge-line

---


# Setup LINE Bridge

Guide the user through LINE bridge setup following the docs at `docs/message_apps/line/`. Use the language-appropriate version (README.md for English, README.ja.md for Japanese) based on the user's language.

## Step 1: Prerequisites

1. Check MulmoClaude is running (`lsof -i :3001 -sTCP:LISTEN`). If not, ask the user to run `yarn dev` in a separate terminal first.
2. Check ngrok is installed (`which ngrok`). If not, guide `brew install ngrok` + authtoken setup.

## Step 2: Follow the setup doc

Read the appropriate doc (`docs/message_apps/line/README.md` or `README.ja.md`) and walk the user through it. Key pitfalls to highlight:

- Webhook URL must end with `/webhook` (without it, LINE POSTs to `/` and gets 404)
- Disable auto-reply messages in LINE Official Account settings (prevents double replies)
- Add `LINE_CHANNEL_SECRET` and `LINE_CHANNEL_ACCESS_TOKEN` to `.env`

## Step 3: Start the bridge

```bash
node packages/bridges/line/dist/index.js
```

`npx @mulmobridge/line` does not work inside the monorepo. Use `node` directly.

On failure, refer to the troubleshooting table in the setup doc.