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Context Engineering Guide

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

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

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

Cmdk – CD anywhere and open anything in your terminal

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

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

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

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

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

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

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

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

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

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

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

Building a Mac app with Claude code

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

Prompting LLMs is not engineering

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

Context Engineering for Agents

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

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

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

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

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

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

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

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

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

LLMs as Compilers

LLMs as compilers 7/2/2025 by Kadhir So far, I've only used LLMs as an assistant, where I'm doing something, and an LLM helps me along the way. Code autocomplete feels like a great example of how useful it can be when it gets it right. I don't doubt that over time this will improve, but I'm excited to see a more significant transition from this assistant mode to a compiler mode, at least for coding. It will be exciting when we focus solely on the context we fed the LLM, then test the features

Google Messages is hiding a useful text formatting feature from users

Edgar Cervantes / Android Authority TL;DR It turns out Google Messages supports text formatting, but currently, only the integrated Gemini chatbot can use it to format its own replies. The hidden feature uses Markdown syntax, as seen when the Gemini chatbot formats its own text with symbols like double asterisks for bolding. A full rollout may be challenging due to cross-platform compatibility needs, as text formatting isn’t a standard part of the RCS specification. Google Messages was a sim

Soldier’s wrist purse discovered at Roman legionary camp

Archaeologists have discovered a fragment of a soldier’s wrist purse at the site of a temporary Roman camp in South Moravia, Czech Republic. The camp was established by the 10th Legion, who was stationed in the area between AD 172 and 180 during the Marcomannic Wars, a campaign against the Germanic Marcomanni, the Quadi, and the Sarmatian Iazyges. - Advertisement - The find is especially significant because it was uncovered outside the traditional boundaries of the Roman Empire. “It is quite

Don’t use “click here” as link text (2001)

Don't use "click here" as link text What a link means When calling the user to action, use brief but meaningful link text that: provides some information when read out of context explains what the link offers doesn't talk about mechanics is not a verb phrase An example For instance, avoid the following sentence on your page: To download W3C's editor/browser Amaya, click here. or: To download Amaya, go to the Amaya Website and get the necessary software. Both of these sentences divulg

Topics: amaya link text tips w3c

Don't use "click here" as link text – W3C (2010)

Don't use "click here" as link text What a link means When calling the user to action, use brief but meaningful link text that: provides some information when read out of context explains what the link offers doesn't talk about mechanics is not a verb phrase An example For instance, avoid the following sentence on your page: To download W3C's editor/browser Amaya, click here. or: To download Amaya, go to the Amaya Website and get the necessary software. Both of these sentences divulg

Topics: amaya link text tips w3c

A proof-of-concept neural brain implant providing speech

Stephen Hawking, a British physicist and arguably the most famous man suffering from amyotrophic lateral sclerosis (ALS), communicated with the world using a sensor installed in his glasses. That sensor used tiny movements of a single muscle in his cheek to select characters on a screen. Once he typed a full sentence at a rate of roughly one word per minute, the text was synthesized into speech by a DECtalk TC01 synthesizer, which gave him his iconic, robotic voice. But a lot has changed since

Soldier's wrist purse discovered at Roman legionary camp

Archaeologists have discovered a fragment of a soldier’s wrist purse at the site of a temporary Roman camp in South Moravia, Czech Republic. The camp was established by the 10th Legion, who was stationed in the area between AD 172 and 180 during the Marcomannic Wars, a campaign against the Germanic Marcomanni, the Quadi, and the Sarmatian Iazyges. - Advertisement - The find is especially significant because it was uncovered outside the traditional boundaries of the Roman Empire. “It is quite

I Helped 4 Local Businesses Use Adobe Express' AI Features

Over the past few years, I've found tremendous joy in helping local businesses here in Worcester, MA learn more about technology and AI. It's the same work I do in my full-time job as a content creator, but I love the in-person collaborative aspect. I started my business Feisworld Media first as a podcaster, then later I produced a documentary on Amazon Prime and then launched a YouTube channel in 2019. But it's still the in-person sharing that gets me excited about helping others. Since Adobe

Got a suspicious UPS text? Don't reply - it might be a scam. Here's how to tell

Elyse Betters Picaro / ZDNET I've been anxiously expecting a package from UPS. That's why a text I received the other day caught my eye. Claiming to be from UPS, the message said that the carrier attempted to deliver the package on June 27, but the delivery couldn't be completed. The date was one when my wife and I were away, so this seemed legitimate at first glance. Also: Got a suspicious E-ZPass text? Don't click the link (and what to do if you already did) However, I've written plenty of

How to Use Markdown

Whether you're posting on Reddit, Discord, or Github, there's only one way to add formatting: Markdown. If you want to add a link, bold some text, or even split text into paragraphs, you will need to know the basics of this text-based formatting system. Does that sound scary? Trust me, it’s not. Markdown has just a few rules for formatting text the way you want, and you only need to learn the rules for the formatting you actually use. Let's go over the simple rules, talk about why Markdown is

The new skill in AI is not prompting, it's context engineering

June 30, 2025 5 minute read Context Engineering is new term gaining traction in the AI world. The conversation is shifting from "prompt engineering" to a broader, more powerful concept: Context Engineering. Tobi Lutke describes it as "the art of providing all the context for the task to be plausibly solvable by the LLM.” and he is right. With the rise of Agents it becomes more important what information we load into the “limited working memory”. We are seeing that the main thing that determine

The New Skill in AI Is Not Prompting, It's Context Engineering

June 30, 2025 5 minute read Context Engineering is new term gaining traction in the AI world. The conversation is shifting from "prompt engineering" to a broader, more powerful concept: Context Engineering. Tobi Lutke describes it as "the art of providing all the context for the task to be plausibly solvable by the LLM.” and he is right. With the rise of Agents it becomes more important what information we load into the “limited working memory”. We are seeing that the main thing that determine

Pixelmator Pro just got its first Apple Intelligence features and more

Pixelmator is now owned by Apple, so it was only a matter of time before the suite of photo apps was updated with Apple Intelligence support. Today, Pixelmator Pro for Mac is the first in Apple’s trio of products to get new AI features alongside accessibility improvements and more. When Apple acquired Pixelmator, it gained ownership of three separate apps: Pixelmator Pro for Mac Pixelmator for iPhone and iPad Photomator for iPhone, iPad, and Mac Before the acquisition, Pixelmator Pro was cl

The Plot of the Phantom, a text adventure that took 40 years to finish

Posted June 23, 2025. tl;dr: I finished writing a text adventure game I started when I was a teenager, and you can play it in a browser right now. If you knew me in 1984, you would also know that you could find me glued to a chair in front of our family's Atari 800 personal computer, typing out BASIC programs from issues of COMPUTE! magazine and letting the summer days go by. I was also obsessed with the Infocom series of text adventure games, although I'd have to go to a friend's house to pla

Show HN: New Ensō – first public beta

Hi there, Look! The new version of Ensō (codename: Occult Vampire Keanu) is available for public testing! Download it here This is a temporary icon I used for testing. I am considering creating a simplified version of it. PS. here's the original image (on potato.horse, of course) What's included Following MISS, my focus is on removing distractions over adding new features. This can be surprisingly challenging (e.g. how do I tell users about feature X or Y without breaking their flow?) bu