BlogViral

Show HN: Reverse-engineering web apps into agent tools Hey HN! We built a browser-based agent that runs inside an authenticated web app, watches how the app calls its own APIs, and automatically turns those into agent tools. You can think of it as an auto-generated MCP server that self-updates as the host app changes. The result is a skilled AI assistant that actually integrates deeply with any product (not just chat and RAG) with minimal effort. Check out these short demos below that show the agent in software you're probably familiar with: - Jira: https://ift.tt/1sG6DN5 - Spotify: https://ift.tt/xrzjRZc - Hacker News (lol): https://ift.tt/i5pYFQb - Full Demo: https://ift.tt/XM05xJ3 As you can see in the examples, you can do way more (and faster) than what you normally would be able to via point and click. And we never even touched the source code of these products! Why do this? In an ideal world, every application has an MCP server or an easily-digestible API available fo...

Show HN: Hover over your UI element to get its exact location in code https://loerei.github.io/HoverSource/ July 9, 2026 at 12:44AM

Show HN: Maps for e-scooters (hills and battery routing) I built BattMap, AMA! Living in San Francisco is hilly. Google Maps is great for bike maps, but I wanted to know if my scooter could make it up the hills, how much battery it would burn, and if I could make it back home without recharging it. https://battmap.com July 8, 2026 at 11:06PM

Show HN: Book Bounce – Bedtime story helper for parents I built a helper for my son's story times. After a few months of reading to our son we couldn't remember what books we read and when, we realized that our personal library had hotspots, and we were going to need the option for variety when the time came to choose bedtime books. This app gives my wife and I a rotation for our physical books based on the last time they were read and the frequency setting on each book. It also throws in other children's books on OpenLibrary to read to him. We've found some new favorites from this feature. Reading activity is logged as well. We've used it to track his 1000 Books Before Kindergarten progress. Supabase stores a pool of OpenLibrary ebooks to randomly suggest to users. OpenLibrary's API is used as a book data source. Everything else stays local to your device. TLDR: App that helps parents rotate through story books, suggests ebooks on OpenLibrary, tracks reading ac...

Show HN: A website that shows every pro triathlete's swim, bike, and run gear https://racekit.pro July 6, 2026 at 11:18PM

Show HN: Pulpie – Models for Cleaning the Web Hey HN, I'm Shreyash, founder of Feyn. We built Pulpie, a family of Pareto optimal models for cleaning the web. Pulpie strips boilerplate (ads, footers, sidebars) from raw HTML and returns just the main content as HTML or Markdown. We match SOTA extraction quality while being 20x cheaper. Cleaning 1 billion webpages costs $7,900 with Pulpie versus $159,000 with Dripper, the current leading extractor. The gains come from architecture. Today's leading extractors are decoders that generate output one token at a time. Each step reads the full model from memory to produce a single token. Conversely, Pulpie models are encoders. They run one forward pass over the full input HTML and label each block as boilerplate or content. As a result, Pulpie is compute-bound while decoders are memory-bound. Cheaper GPUs have relatively more compute than memory bandwidth. This makes Pulpie easy to run optimally. Here's Pulpie and Dripper cleaning th...