Overnight Catch-Up: the WhatsApp card that never makes things up

说明与用途

Overnight Catch‑Up 将长 WhatsApp 群聊转换为简洁卡片，显示用户提及、未回答问题、截止日期、金钱、链接和简短摘要，将阅读时间从 5.5 分钟降至 1 分钟。

问题

Users miss overnight WhatsApp group chats with many unread messages, making it hard to find deadlines, questions, or important information.

结果

The app reduces reading time from ~5.5 minutes for 300 messages to ~1 minute for the card, while ensuring privacy by not storing data and allowing local offline summarization.

工作流

• Parse WhatsApp export (Android/iPhone)
• Extract facts: user mentions, unanswered questions, times/deadlines, money, links
• Summarize long chats in ~3,000‑char chunks using an open‑weight model
• Combine summaries
• Guard checks summary for new numbers, links, money words or unknown names; if rejected, show facts only

证据

Plain Python finds mentions of my name, unanswered questions, times and deadlines, money and links, and copies them straight from the chat. No model is involved.

来源

A guard rejects any summary that adds numbers, links, money words or names that are not in the chat. If it rejects, the card shows facts only.

来源

The app estimates about 5.5 minutes to read the chat versus about 1 minute for the card (an estimate at 200 words per minute).

来源