Summary Box

Summary Box is a Chrome extension that works as an AI agent for reading the feeds a person already follows. It opens YouTube, Reddit, X, LinkedIn, Hacker News and Substack in the user's own browser, logged in as the user, reads what is actually there, and returns a digest of the items worth opening. Each card carries a one line reason and a mark such as Worth It, Skip or Seen, so the ranking can be checked rather than taken on trust. It is built for people who follow more material than they can read and want a short, evidence backed summary instead of another algorithmic feed. The extension also produces summaries of anything on demand, cross source briefs that cite their evidence, a daily digest of open research threads, and a check of YouTube comments. A personal profile records what the tool has learned about the user's interests, shows the source of each inference and lets the user correct it. The vendor states that the agent works visibly in the browser and that banks and brokerages are permanently off limits. There is a single paid plan called Plus with a 5 day free trial that charges nothing today. The vendor lists it at $12 per month, or $108 per year, which works out to $9 per month with three months free. Cancellation is available at any time.