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Context Engineering Guide

news.ycombinator.com Unknown 2025-07-26 16:59:48

What is Context Engineering? A few years ago, many, even top AI researchers, claimed that prompt engineering would be dead by now. Obviously, they were very wrong, and in fact, prompt engineering is now even more important than ever. It is so important that it is now being rebranded as context engineering. Yes, another fancy term to describe the important process of tuning the instructions and relevant context that an LLM needs to perform its tasks effectively. Much has been written already

Topics: agent context engineering prompt query

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Mysterious Signals From Deep Space Hint at Something Brutal, Scientists Say

futurism.com Unknown 2025-07-30 03:15:00

Astronomers believe they've uncovered the source behind mysterious cosmic signals known as fast X-ray transients (FXTs) — and it adds a grim twist to our understanding of the death of stars. Right as a massive star explodes in a supernova, it unleashes a tremendously energetic stream of particles called a jet, producing a gamma ray burst — one of the most powerful explosions in the universe. The rest of the star, typically, collapses into a black hole. But a pair of new studies suggests that t

Topics: astronomers fxt jet ray star

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Gboard could make it much easier to type and edit even without touching your phone (APK teardown)

androidauthority.com Unknown 2025-07-29 01:48:11

Edgar Cervantes / Android Authority TL;DR Google reveals more clues about its improved voice typing feature in Gboard. While Gboard already allows using basic voice commands for editing text, the improved feature could use AI for smarter edits. This feature could be powered by Gemini Nano, allowing for quick, on-device editing with voice. As Google readies the upcoming Pixel 10 series of phones, we’re witnessing increasingly more signs hinting at contextual uses of AI across many of its apps

Topics: commands feature gboard text voice

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An electrician's plea: Don't plug these 7 appliances (including AC units) into extension cords

zdnet.com Chris Bayer 2025-07-30 02:00:18

Maria Diaz/ZDNET Extension cords are generally a safe solution for running power to electronics that are too far from the nearest wall outlet. But the operative word here is "electronics," which is not as all-encompassing as some people might think. Appliances (like refrigerators and toaster ovens) are obviously electronic devices, but they're in a different class from most electronics because of the amperage demands they need to function. Why you shouldn't plug everything into an extension c

Topics: cord extension outlet power watts

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Tell HN: uBlock Origin on Chrome is finally gone

news.ycombinator.com Unknown 2025-07-30 04:28:55

The latest version of Chrome (138) removes Manifest v2 and all extensions that rely on it.

Topics: 138 chrome extensions latest manifest

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The zero-day that could've compromised every Cursor and Windsurf user

bleepingcomputer.com Unknown 2025-07-31 15:03:14

A security researcher from Koi Security stumbled upon a critical zero-day buried deep in the infrastructure powering today’s AI coding tools. Had it been exploited, a non-sophisticated attacker could’ve hijacked over 10 million machines with a single stroke. AI coding assistants like Cursor and Windsurf have exploded in popularity, promising supercharged productivity for developers around the world. Behind their sleek interfaces lies a shared foundation: community-built VS Code forks and an ope

Topics: code extension extensions openvsx yomtov

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Apple planning new Mac external display, MacBooks, iPads, and more for early 2026

9to5mac.com Chance Miller 2025-08-02 07:26:32

Apple is planning for a busy start to 2026. A new report from Bloomberg details that Apple is working on updates for various iPhone, iPad, and Mac models destined for the first half of 2026. Perhaps most exciting for many people, however, is that Apple is also planning to release a new external display for the Mac next year. Here is what Bloomberg says is in the works for the first half of 2026: New MacBook Pro powered by the M5 chip, “the last with the current design” New iPad Air powered b

Topics: apple chip display external new

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ExTiX's new release is an even better Windows 11-like Linux desktop

zdnet.com Jack Wallen 2025-08-02 07:30:23

Jack Wallen/ZDNET Back in 2022, I reviewed ExTiX with the idea of using it to get the Deepin desktop experience, without the possible security/privacy issues associated with Deepin Linux. Now ExTiX has a new release, based on Deepin 25 Stable. This new release vastly improves on the experience to deliver a desktop with a layout that would make any Windows 11 user feel right at home, only there are no intrusive ads, unexpected reboots, or concerns that something will come crashing down. When yo

Topics: app deepin desktop extix install

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Cmdk – CD anywhere and open anything in your terminal

news.ycombinator.com Unknown 2025-08-01 04:35:53

cmdk The ⌘-k "access anything" shortcut is awesome on Notion, Slack, etc. The terminal, by comparison, is a dinosaur: tons of repeated cd and ls and TAB just to get anywhere. This is ⌘-k for the terminal: access anything on your filesystem, from anywhere, with previews before you open: When you press enter... Directories get cd d to d to Text files get opened in vim Images and PDFs get opened in the Preview app .key files get opened in Keynote I'm extremely grateful to fzf; this project

Topics: cmdk contents select send text

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Show HN: Petrichor – a free, open-source, offline music player for macOS

news.ycombinator.com Unknown 2025-08-03 22:17:31

Petrichor An offline music player for macOS Summary ✨ Features Everything you'd expect from an offline music player! Map your music folders and browse your library in an organized view. Create playlists and manage the play queue interactively. Browse music using folder view when needed. Pin anything (almost!) to the sidebar for quick access to your favorite music. Navigate easily: right-click a track to go to its album, artist, year, etc. Native macOS integration with menubar and

Topics: datetime default integer null text

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Browser extensions turn nearly 1 million browsers into website-scraping bots

arstechnica.com Unknown 2025-08-04 11:08:27

Extensions installed on almost 1 million devices have been overriding key security protections to turn browsers into engines that scrape websites on behalf of a paid service, a researcher said. The 245 extensions, available for Chrome, Firefox, and Edge, have racked up nearly 909 million downloads, John Tuckner of SecurityAnnex reported. The extensions serve a wide range of purposes, including managing bookmarks and clipboards, boosting speaker volumes, and generating random numbers. The common

Topics: extensions library mellowtel olostep tuckner

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Prime Day Is the Prime Time to Add a SanDisk Memory Card to Your Camera or Laptop for Peanuts

gizmodo.com Mike Fazioli 2025-08-05 02:50:02

It’s not here quite yet but the day may come when SanDisk enters that rarified category of brands that are synonymous with their entire product category, like Kleenex or Band-Aids or Popsicles. When you think of a SD card to add to your camera, laptop, or other device, you think of SanDisk, and Prime Day is a great time to think of adding a SanDisk or two to your tech collection now that the 256GB Extreme PRO SDXC UHS-II model is just $53. SanDisk did not come by its stellar reputation lightly.

Topics: extreme memory pro sandisk video

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Looking for an External Hard Drive? This Seagate 24TB Is Just $0.01/GB for Prime Day

gizmodo.com Gizmodo Deals 2025-08-05 07:35:25

Among the vicious competition in the market for external hard drives, four of the largest players – Seagate, WD, SanDisk, and Samsung – are in a constant fight for your attention. Seagate just came today with an incredible 24TB external hard drive on sale at a new record low price: Selling for just $259 (down from $329), Seagate’s Expansion 24TB HDD set a new record low price per gigabyte of about $0.01, which lower than all other drives (including ones with smaller capacities). See at Amazon

Topics: 24tb data drive external seagate

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I Will Text You the Best Prime Day Deals Directly to Your Phone -- for Free

cnet.com See Full Bio 2025-08-06 05:15:03

Good news, Prime Day deal hunters: I've spent the last decade crawling the internet for the best deals nearly every day, and in that time, I've learned a thing or 12 about Amazon sales and Prime Day deals, including which discounts are genuine savings and which reductions are just a lot of buzz without meaningful cost-cutting. That's why every day -- Prime Day or not -- I hand-pick daily CNET Deals texts to subscribers to deliver irresistible sales straight to your phone, helping you score must-

Topics: cnet day deals prime text

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Context is a native macOS app that was almost entirely written by AI

9to5mac.com Marcus Mendes 2025-08-06 11:03:40

Like many image and video AI tools, which have (mostly) stopped creating people with six fingers, AI coding tools have also been making great strides. Case in point: developer Indragie Karunaratne just shipped Context, a native macOS app that was 95% built by Anthropic’s Claude Code. Anthropic has been standing out in AI-assisted development For the better part of the last year, Anthropic has pulled away from the pack when it comes to how good its Claude models are at generating code (to be fa

Topics: ai claude code context karunaratne

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NuxtLabs is joining Vercel

news.ycombinator.com Unknown 2025-08-06 22:40:12

NuxtLabs is joining Vercel From the start, our mission at NuxtLabs has been to create the best possible developer experience for building fast, beautiful applications. We built Nuxt as an open source framework under the MIT license because we believed that great tools should be accessible, transparent, and community-driven. We’ve spent years pouring our time, energy, and resources into Nuxt. And through that, we’ve built not just a product, but also a community. One I’m proud of every single d

Topics: ai nuxt open source vercel

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OneText raises $4.5M from Y Combinator, Khosla to reinvent shopping by text

techcrunch.com Tage Kene-Okafor 2025-08-07 07:27:51

The typical online checkout experience has become bloated with friction. And while more companies are building solutions around online checkout, few are rethinking it from scratch. One such company is OneText, which is building what it calls a “text-to-buy network,” that lets shoppers complete purchases via text message. The company, founded by former PayPal employees, just closed a $4.5 million seed round backed by Khosla Ventures, Coatue, Citi Ventures, Y Combinator, Good Friends (the fund cr

Topics: checkout fudem onetext platform ventures

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Malicious Chrome extensions with 1.7M installs found on Web Store

bleepingcomputer.com Unknown 2025-08-07 19:00:00

Almost a dozen malicious extensions with 1.7 million downloads in Google's Chrome Web Store could track users, steal browser activity, and redirect to potentially unsafe web addresses. Most of the add-ons provide the advertised functionality and pose as legitimate tools like color pickers, VPNs, volume boosters, and emoji keyboards. Researchers at Koi Security, a company providing a platform for security self-provisioned software, discovered the malicious extensions in Chrome Web Store and rep

Topics: chrome extensions malicious security users

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Apple’s 5th Ave store spray-painted to protest ‘climate hypocrisy’

theverge.com Emma Roth 2025-08-10 03:11:57

is a news writer who covers the streaming wars, consumer tech, crypto, social media, and much more. Previously, she was a writer and editor at MUO. A climate change activist was arrested after spray-painting Apple’s 5th Avenue store as part of a protest against Big Tech’s “climate hypocrisy.” Protestors from the Extinction Rebellion environmental group staged a demonstration at the New York City storefront on Sunday, and one individual spray-painted “Boycott” beneath the Apple logo on the build

Topics: apple climate extinction rebellion trump

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US government seeks tool to find ‘hidden language’ in messages on your phone

9to5mac.com Ben Lovejoy 2025-08-10 11:31:51

The United States Customs and Border Protection (CBP) is seeking pitches from tech companies for a forensic tool intended to find “hidden language” in messages on smartphones searched at the border … The CPB says that it expects companies to propose modified versions of software they already have working, as there isn’t time to devise something from scratch. Wired spotted the request on a government procurement website. The agency said in a federal registry listing that the tools it’s seeking

Topics: able border data hidden text

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Building a Mac app with Claude code

news.ycombinator.com Unknown 2025-08-10 14:55:36

I recently shipped Context, a native macOS app for debugging MCP servers. The goal was to build a useful developer tool that feels at home on the platform, powered by Apple's SwiftUI framework. I've been building software for the Mac since 2008, but this time was different: Context was almost 100% built by Claude Code1. There is still skill and iteration involved in helping Claude build software, but of the 20,000 lines of code in this project, I estimate that I wrote less than 1,000 lines by ha

Topics: app claude code context swift

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Prompting LLMs is not engineering

news.ycombinator.com Unknown 2025-08-10 23:38:04

Prompting LLMs is not engineering published in: With the proliferation of AI models and tools, there's a new industry-wide fascination with snake oil remedies called "prompt engineering". As of July 2025 the term is now "context engineering" or "context prompting" or "context manipulation". To put it succinctly, prompt engineering is nothing but an attempt to reverse-engineer a non-deterministic black box for which any of the parameters below are unknown: training set weights constraints o

Topics: context engineering models prompt specific

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Context Engineering for Agents

news.ycombinator.com Unknown 2025-08-10 00:56:20

Lance Martin TL;DR Agents need context to perform tasks. Context engineering is the art and science of filling the context window with just the right information at each step of an agent’s trajectory. In this post, I group context engineering into a few common strategies seen across many popular agents today. Context Engineering As Andrej Karpathy puts it, LLMs are like a new kind of operating system. The LLM is like the CPU and its context window is like the RAM, serving as the model’s work

Topics: agent agents context memories tool

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iOS 26’s Messages app has a solution coming for unwanted texts

9to5mac.com Ryan Christoffel 2025-08-13 15:10:58

Apple’s Messages app got a lot of new features last year, but iOS 26 continues the trend of big upgrades, including a handy solution for all those unwanted spam texts you keep getting. Messages can automatically screen your texts for spam in iOS 26 iOS 26’s Liquid Glass design may be getting the most attention, but the iPhone’s next big update also has lots of new app features coming. These include changes to Apple Wallet, Music, Notes, Reminders, Photos, and more. Apple’s Messages app is get

Topics: 26 ios messages spam texts

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Our Group Text Is Sending the Top July 4th and Prime Day Deals Directly to Your Phone

cnet.com See Full Bio 2025-08-13 22:39:00

I've been crawling the internet for the best deals just about every day for the last 10 years, and if there's one thing I know for sure it's that shopping events like Fourth of July and Prime Day are stuffed with discounts that aren't actual savings. That's why CNET's shopping experts search the internet for price reductions worth the buzz. These are real discounts, not the stuff that was artificially inflated last week. We know you don't want to miss discounts on smartphones like the new iPhone

Topics: cnet deals discounts ll text

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Our Group Text is Sending the Top July 4th and Prime Day Deals Directly to Your Phone

cnet.com See Full Bio 2025-08-14 03:39:00

I've been crawling the internet for the best deals just about every day for the last 10 years, and if there's one thing I know for sure it's that shopping events like Fourth of July and Prime Day are stuffed with discounts that aren't actual savings. That's why CNET's shopping experts search the internet for price reductions worth the buzz. These are real discounts, not the stuff that was artificially inflated last week. We know you don't want to miss discounts on smartphones like the new iPhone

Topics: cnet deals discounts ll text

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As Samsung tests the tri-fold waters, a major rival is readying a second-gen model

androidauthority.com Unknown 2025-08-14 07:45:55

Paul Jones / Android Authority TL;DR HUAWEI is reportedly planning to launch its next-generation tri-fold phone later this year. This successor to the Mate XT Ultimate Design could arrive before Samsung’s first tri-fold even hits the shelves. The new HUAWEI foldable is expected to improve on the Mate XT’s durability and performance. Today’s leaks may have given us clues that Samsung’s first tri-fold foldable is edging closer to release, but it seems like one of its top competitors may alread

Topics: fold mate samsung tri xt

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Poor Man's Back End-as-a-Service (BaaS), Similar to Firebase/Supabase/Pocketbase

news.ycombinator.com Unknown 2025-08-14 07:35:34

Pennybase Poor man's Backend-as-a-Service (BaaS), similar to Firebase/Supabase/Pocketbase It implements core backend features in less than 1000 lines of Go code, using only standard library and no external dependencies: File-based storage using CSV with versioned records using CSV with versioned records REST API with JSON responses with JSON responses Authentication with session cookies and Basic Auth with session cookies and Basic Auth RBAC & ownership-based permissions Real-time updates

Topics: id pennybase resource text user

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Amazon Cuts 14″ Laptop Screen Extender to a Record Low, New 4.7-Star Portable Monitor Deal for 4th of July

gizmodo.com Joe Tilleli 2025-08-14 11:40:27

Now, I’m a remote worker. And while that technically gives me the free reign to work from anywhere, for the longest time I found myself only ever working from my desk at home. Here at my desk I’ve got three large monitors giving me so much flexibility when I work to have multiple tabs open along with Slack, my email, and more. When I’m working off just my laptop screen, I feel too restrained. That is, until I got a portable monitor. Now I don’t have to sacrifice productivity when I want a change

Topics: extender laptop monitor screen working

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Hunters International ransomware shuts down, releases free decryptors

bleepingcomputer.com Unknown 2025-08-14 17:53:21

The Hunters International Ransomware-as-a-Service (RaaS) operation announced today that it has officially closed down its operations and will offer free decryptors to help victims recover their data without paying a ransom. "After careful consideration and in light of recent developments, we have decided to close the Hunters International project. This decision was not made lightly, and we recognize the impact it has on the organizations we have interacted with," the cybercrime gang says in a

Topics: extortion group hunters international ransomware

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Latest Tech News

Context Engineering Guide

Mysterious Signals From Deep Space Hint at Something Brutal, Scientists Say

Gboard could make it much easier to type and edit even without touching your phone (APK teardown)

An electrician's plea: Don't plug these 7 appliances (including AC units) into extension cords

Tell HN: uBlock Origin on Chrome is finally gone

The zero-day that could've compromised every Cursor and Windsurf user

Apple planning new Mac external display, MacBooks, iPads, and more for early 2026

ExTiX's new release is an even better Windows 11-like Linux desktop

Cmdk – CD anywhere and open anything in your terminal

Show HN: Petrichor – a free, open-source, offline music player for macOS

Browser extensions turn nearly 1 million browsers into website-scraping bots

Prime Day Is the Prime Time to Add a SanDisk Memory Card to Your Camera or Laptop for Peanuts

Looking for an External Hard Drive? This Seagate 24TB Is Just $0.01/GB for Prime Day

I Will Text You the Best Prime Day Deals Directly to Your Phone -- for Free

Context is a native macOS app that was almost entirely written by AI

NuxtLabs is joining Vercel

OneText raises $4.5M from Y Combinator, Khosla to reinvent shopping by text

Malicious Chrome extensions with 1.7M installs found on Web Store

Apple’s 5th Ave store spray-painted to protest ‘climate hypocrisy’

US government seeks tool to find ‘hidden language’ in messages on your phone

Building a Mac app with Claude code

Prompting LLMs is not engineering

Context Engineering for Agents

iOS 26’s Messages app has a solution coming for unwanted texts

Our Group Text Is Sending the Top July 4th and Prime Day Deals Directly to Your Phone

Our Group Text is Sending the Top July 4th and Prime Day Deals Directly to Your Phone

As Samsung tests the tri-fold waters, a major rival is readying a second-gen model

Poor Man's Back End-as-a-Service (BaaS), Similar to Firebase/Supabase/Pocketbase

Amazon Cuts 14″ Laptop Screen Extender to a Record Low, New 4.7-Star Portable Monitor Deal for 4th of July

Hunters International ransomware shuts down, releases free decryptors

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