How to Summarize Discord, WhatsApp, Reddit & Other Chats with AI

HARPA AI already includes a built-in /summary command that works out of the box with web pages, PDFs, YouTube videos and chat threads. You don't need to configure anything — just install HARPA AI, open a page, press Alt+A (Windows) or ^+A (Mac) and run /summary. The command automatically picks the right context parameter for the page you're on — {{page}} for articles, {{transcript}} for YouTube videos and {{thread}} for chat threads — so it correctly parses and summarizes the content without any extra setup.

This guide is for those who want to go further: customize the summary prompt, extract more messages than the default, analyze conversations in depth or parse chat data to send it elsewhere — to a webhook, Google Sheets, Notion or any other service via automation steps.

# The {{thread}} Parameter

HARPA AI provides the {{thread}} parameter that lets you extract chat history, parse message threads and generate AI-powered summaries — all without leaving your browser or copy-pasting anything.

# Where Does It Work?

The {{thread}} parameter supports extracting messages and comments from 7 major platforms:

• Discord - server channels, forum posts and threads
• WhatsApp - group chats and personal conversations (web.whatsapp.com)
• Telegram - private chats, group messages and public channels (web.telegram.org)
• Reddit - post discussions and nested comment threads
• YouTube - video comment sections
• Facebook - post comments and replies
• X (Twitter) - tweet replies and conversation threads

HARPA automatically detects the platform, scrolls through the page to collect messages and feeds the extracted conversation into your AI prompt.

# How to Summarize a Chat Thread

1. Open HARPA AI by pressing Alt+A (Windows) or ^+A (Mac).
2. Navigate to any supported page — a Discord channel, a Reddit post, a YouTube video, etc.
3. Type a prompt using the {{thread}} parameter and press Enter, for example:

Summarize this thread for me in 5 bullet points: {{thread}}

HARPA will parse the conversation, extract usernames, timestamps and message content, and pass everything to the AI model for analysis.

# Controlling How Many Messages to Extract

By default, {{thread}} scrapes up to 100 messages from the conversation. You can adjust the extraction depth with the limit option to capture more or fewer messages:

• {{thread}} - extracts up to 100 messages (default)
• {{thread limit=50}} - quick overview of recent activity
• {{thread limit=500}} - deeper conversation analysis
• {{thread limit=1000}} - comprehensive thread extraction for long discussions

A higher limit is useful for active Discord channels, lengthy Reddit debates or WhatsApp group chats with extensive message history. A lower limit works well when you just need a quick recap of the latest updates.

# Example Prompt: Summarize a Discord Channel

Open a Discord channel in your browser, paste this prompt into HARPA AI and hit Enter:

Create a concise, high-value summary of a Discord channel.

Requirements:
- The output must be in {{language}}
- Be concise and optimize for a busy reader
- Focus on actionable insights and important context
- Do not add unnecessary introductions or filler

Include the following:
- Key discussions, decisions, or announcements
- Mentions of people who posted the most important or impactful messages (by username)
- Notable insights, opinions, or expertise shared by specific participants
- Any unresolved questions, next steps, or follow-ups that may be useful


DISCORD THREAD: {{thread limit=1000}}

YOUR SUMMARY:

This prompt works with any supported platform. Simply swap the context label to match your use case — "WHATSAPP CHAT", "REDDIT THREAD", "TELEGRAM CHAT", "YOUTUBE COMMENTS" — and adjust the message limit as needed.

# Use Cases

• Community managers: digest daily activity across Discord or Telegram channels without reading every message
• Researchers: quickly extract key opinions and arguments from Reddit threads or Twitter conversations
• Content creators: mine YouTube comment sections for audience feedback, video ideas and frequently asked questions
• Team leads: catch up on WhatsApp or Telegram group discussions after being away
• Social media analysts: track sentiment and talking points across Facebook and X threads

# Save It as a Reusable Command

Instead of pasting the prompt every time, save it as a custom HARPA command:

1. Type / in HARPA AI chat and click CREATE.
2. Add a GPT step and paste the summary prompt.
3. Save your command with a name like "Summarize Thread".

Now you can run your thread summarizer on any supported page with a single click. Learn more in the Custom AI Commands guide.

# Further Reading

• Command Parameters
• Custom AI Commands
• Summarize Pages & YouTube Videos
• Automation Steps