DEV Community • 2026-04-20 17:01

Claude Managed Agents - How to Build a GitHub Repo Review Agent

Creating an AI agent almost always requires much more than crafting a prompt. A model, infrastructure, execution logic, runtime, and hosting are typically required. That is where Claude Managed Agents transform the game. By leaving the responsibility of the orchestration layer up to the Claude team, you can define the agent’s behavior by crafting prompts, providing tools, and establishing constra...

Hacker News: Front Page • 2026-04-20 17:00

Bloom (YC P26) Is Hiring

Article URL: https://www.ycombinator.com/companies/trybloom/jobs Comments URL: https://news.ycombinator.com/item?id=47837176 Points: 0 # Comments: 0

DEV Community • 2026-04-20 17:00

Callbacks in JavaScript: Why They Exist

Content List What is a callback function Why callbacks are used in asynchronous programming Passing functions as arguments Callback usage in common scenarios Basic problem of callback nesting What is a callback function A callback is a function which is passed as an argument to another function, which than "called back" to that within the outer function to complete the act...

DEV Community • 2026-04-20 17:00

Deterministic Time: Don’t Break Ordering and Replay in Distributed Systems

In distributed systems, what we actually want is not “the correct time.” We want two things: Ordering: don’t lose which came first. Replay: later, explain the same decision with the same grounds and procedure. But in real systems we casually lean on created_at (wall clock). And then everything breaks: NTP adjustments / VM migration / suspend-resume makes clocks jump backward or forward P...

DEV Community • 2026-04-20 16:59

Angular injection context lint rules: say goodbye to NG0203 error

Angular is changing a lot these days. One of the major changes that most developers are already aware of is how to inject dependencies. // Before @Component() export class ProductPage { constructor(private readonly productsApi: ProductsApi) {} } // Now @Component() export class ProductPage { private readonly productsApi = inject(ProductsApi); } From compilation to runtime ...

DEV Community • 2026-04-20 16:58

What Building with MCP Taught Me About Its Biggest Gap

I spent the last few weeks wiring up MCP at my org, stitching a handful of internal tools (GitHub, Slack, Datadog) into a shared layer that multiple teams' AI agents could call into. Useful. Powerful. And, about a week in, slightly alarming. The same four or five "wait, doesn't MCP handle this?" questions kept coming up. Who's allowed to call this tool? What happens if a tool returns 50MB of da...

Hacker News • 2026-04-20 16:57

Show HN: Hora – A Native SwiftUI Google Calendar Client for macOS

Comments

Hacker News: Front Page • 2026-04-20 16:57

The Theory of Interstellar Trade [pdf]

Article URL: https://www.princeton.edu/~pkrugman/interstellar.pdf Comments URL: https://news.ycombinator.com/item?id=47837105 Points: 9 # Comments: 0

Product Hunt — The best new products, every day • 2026-04-20 16:52

Stanley For 𝕏

The World's First AI Head of Content Discussion | Link

DEV Community • 2026-04-20 16:50

Watch Google Cloud NEXT Live Right Here on DEV!

Big things are happening at Google Cloud NEXT, and you don't have to go anywhere to catch the action. We're simulcasting the keynotes and various additional developer livestreams throughout the day on April 22 & 23 directly on the DEV homepage so you can tune in with the community. Here's what's on the schedule: 📺 April 22 at 9:00 AM PT: Opening Keynote & Livestreams Kic...

Product Hunt — The best new products, every day • 2026-04-20 16:49

Kimi K2.6

Open-source SOTA for long-horizon coding and agent swarms Discussion | Link

Brad Frost • 2026-04-20 16:48

Mouth Coding

Lately, I’ve been talking websites into existence. Not metaphorically, but actually sitting in important meetings with people — clients, collaborators, my wife, friends, neighbors — watching real websites materialize in front of us as we converse. I’ve been half-jokingly call […]

The GitHub Blog • 2026-04-20 16:43

Highlights from Git 2.54

The open source Git project just released Git 2.54. Here is GitHub’s look at some of the most interesting features and changes introduced since last time. The post Highlights from Git 2.54 appeared first on The GitHub Blog.

DEV Community • 2026-04-20 16:41

Hypercontext: a framework for agents that actually know what they're doing

I built Hypercontext because I got tired of agent frameworks that treat context like a static blob you shove into a prompt and hope for the best. Most tools out there assume context is something you pass. I wanted something that treats context as something you can inspect, compress, score, and rewrite while the agent is running. Hypercontext is still in Alpha phase. This isn't about adding a...

Hacker News: Front Page • 2026-04-20 16:37

Quantum Computers Are Not a Threat to 128-Bit Symmetric Keys

Article URL: https://words.filippo.io/128-bits/ Comments URL: https://news.ycombinator.com/item?id=47836784 Points: 12 # Comments: 2

Telerik Blogs • 2026-04-20 16:37

What’s Next for React in 2026

The State of React survey reveals developer insights into the patterns and tools they use and how their opinions about React are shifting.

Hacker News • 2026-04-20 16:35

Show HN: Ctx – a /resume that works across Claude Code and Codex

Comments

DEV Community • 2026-04-20 16:34

Anyone working on applications for Recursive Language Models? #discussion #rlm

Hacker News: Front Page • 2026-04-20 16:34

We Accepted Surveillance as Default

Article URL: https://vivianvoss.net/blog/why-we-accepted-surveillance Comments URL: https://news.ycombinator.com/item?id=47836730 Points: 12 # Comments: 1

Echo JS • 2026-04-20 16:31

WebBlackbox - A flight recorder and time-travel debugger for web apps

Comments