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Summarize & Reply to Slack Channel Messages with Claude AI Assistant

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Created by: pata || melloai

pata

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Last update 2 days ago

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✨ What It Does

Mello is a Claude-powered Slack assistant that helps you stay on top of unread messages across all your channels.

It:

  • Summarizes conversations contextually using Claude AI.
  • Generates reply suggestions and sends them as private (ephemeral) Slack messages.
  • Lets you respond instantly with one-click AI-suggested replies.

Perfect for busy teams, founders, and anyone looking to reduce Slack noise and save hours each week.


🔧 Setup Instructions

  1. Create a Slack App

    • Go to Slack API → Your Apps
    • Click Create New App and set it up for your workspace
    • Under OAuth & Permissions, add:
      • Bot Token Scopes: commands, chat:write, channels:history, users:read
      • User Token Scopes: channels:history, chat:write
    • Enable Interactivity, and point the Request URL to your n8n webhook (e.g. /slash-summarize)
  2. Add Claude API

    • Get an API key from Claude (Anthropic)
    • In n8n, set up the Claude API credential (or switch to OpenAI)
  3. Import This Workflow

    • Go to your n8n instance, click Import, and paste this template
    • Update any placeholders (Slack app, Claude key, webhook URLs)
    • Follow the inline sticky notes for guidance
  4. Test It

    • Type /summarize in any Slack channel
    • Mello will fetch unread messages, summarize them, and show reply buttons in a private message

⏱ Setup time: ~10 minutes


🛠 Workflow Highlights

  • Slash command trigger (/summarize)
  • Slack API integration to fetch messages
  • Claude AI for contextual summaries
  • Reply suggestions with smart buttons
  • Private Slack delivery (ephemeral messages)
  • Designed to be easily extended (e.g. add support for OpenAI, custom storage)

🔒 Note

This is a lite preview of the full Mello workflow.

✅ The full version includes:

  • Slack reply buttons with thread context
  • Full OAuth flow with token storage
  • MongoDB integration
  • Custom Claude/OpenAI configuration
  • Hosted version with onboarding, branding & support

💡 Want access to the complete version?
📩 Email [email protected]