DEV Community • 2026-04-08 23:51

every AI agent I've read has a god object. after 12 codebases I think I know why.

I've spent the last few months reading through AI agent source code. Not the docs -- the actual implementations. 12 projects so far: Claude Code, Cline, Dify, Goose, Codex CLI, DeerFlow, and six others. Every single one has a god object. Not like "oh this file is a bit big." I mean a single class or module that handles the agent loop, streaming, tool execution, context management, error recovery...

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DEV Community • 2026-04-08 23:50

How JavaScript Async Actually Works (Event Loop, Micro tasks, and Call Stack)

If you have ever thought: Why does Promise.then() run before setTimeout? Why does await run “later” even though it looks synchronous? What is actually happening behind async / await? then you are ready to understand how JavaScript async really works. When I first struggled with “why a Promise is returned”, I realized that I could not go further without understanding the internal mechanism. I...

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Hacker News: Front Page • 2026-04-08 23:48

Claude Managed Agents Overview

Article URL: https://platform.claude.com/docs/en/managed-agents/overview Comments URL: https://news.ycombinator.com/item?id=47697641 Points: 16 # Comments: 5

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Experienced Devs • 2026-04-08 23:36

I don't understand this industry (it runs on BS?)

I love engineering. I fucking hate the culture of professional software engineering. There's so much BULLSHIT. But maybe I don't understand business culture. Take the term "Tech Stack" for example. I fucking hate this term. What's your stack, someone asks? Idk, how about whatever tool is the best for the job? I see that everywhere, people throwing buzzwords back and forth to dress up w...

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Introducing FOSRES: A Free and Open Source Security Research Project
DEV Community • 2026-04-08 23:34

Introducing FOSRES: A Free and Open Source Security Research Project

Free and Open Source Security Research (FOSRES) Hi. I am Tanveer Salim. And usually I let Claude do the talking. For the first time I am actually writing this from scratch. I would like to introduce you to the FOSRES project. A project meant to train future Security Engineers in Web/Cloud/AI Security. In this project you will be challenged to audit and fix others' code for security bu...

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DEV Community • 2026-04-08 23:34

What Building Fintech Apps Taught Me About Writing Better Code

Fintech is unforgiving. You're dealing with real money and real users. A glitch in a social app is a bad UX moment. A glitch in a payment flow means someone loses money or trust, sometimes both. After spending years building across fintech and crypto products, here's what that environment actually drilled into me. You start thinking about failure first In most apps you can afford to be a lit...

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Product Hunt — The best new products, every day • 2026-04-08 23:33

Cyris

Turns every AI decision into audit-ready evidence Discussion | Link

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newest submissions : multi • 2026-04-08 23:32

File Meta Organizer

About a decade ago I built a CLI tool to add tags and attributes to music, and I built a search engine so I could make playlists like energy & -vocals But, tagging music from command line is tiresome, so I built a UI and ended up building a lot more than I planned. It now handles browsing files, de-duping, tagging images, metadata extraction, custom attributes, playlists, batch renaming, inlin...

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/r/ReactJS - The Front Page of React • 2026-04-08 23:30

Created a ticker component that uses edit distance algorithm - animates only the parts that actually change

What's up! Been working with different ticker components but most of them were pretty basic, just handling numbers or simple text. So I decided to make something better The main thing that makes this different is it uses edit distance algorithm (Levenshtein) to figure out exactly which parts changed between old and new text. Instead of animating everything, only changed parts move while rest stays...

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DEV Community • 2026-04-08 23:29

Build an Email Validation System with a Free API — Disposable Detection, MX Checks, Typo Suggestions

Bad email addresses cost money. Every bounced email hurts your sender reputation, and disposable emails pollute your user database. Most email validation services charge $0.005–$0.01 per check — that's $50 for 10,000 validations. I built a free Email Validation API that handles the heavy lifting: syntax validation, MX record verification, disposable domain detection (500+ domains), and even typo ...

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DEV Community • 2026-04-08 23:29

Generate QR Codes and Website Screenshots with a Single API — No Puppeteer, No Headless Chrome

You want to generate a QR code or capture a website screenshot in your app. The typical advice? Spin up Puppeteer, install headless Chrome, deal with memory leaks and cold starts. There's a simpler way. Two lightweight APIs running on Cloudflare Workers that handle both — with sub-50ms response times and zero infrastructure on your end. QR Code Generator API Generate QR codes in PNG, ...

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Product Hunt — The best new products, every day • 2026-04-08 23:28

Convert or Not

Simulate first-time users. See why they drop off Discussion | Link

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DEV Community • 2026-04-08 23:24

SOLID Principles you won't forget again

Introduction SOLID is a set of design principles for writing clean, maintainable, and scalable code. It stands for: S- Single Responsibility Principle (SRP) A class or function should have only one responsibility. In the bad example below, the CreateUser function should not handle email-related logic. Bad example: public class UserService { public void CreateUser(str...

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DEV Community • 2026-04-08 23:22

MCP Security: Why Your AI Agent's Tool Calls Need a Firewall

TL;DR: The Model Context Protocol is becoming the standard way agents talk to tools. Most deployments have zero security between the agent and the tools it invokes. This post breaks down the real threat surface — tool poisoning, rug-pull attacks, data exfiltration through arguments — maps them to the OWASP Agentic Top 10, and lays out practical, implementable defenses with specific tools and thres...

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DEV Community • 2026-04-08 23:20

Meta Just Revealed Its Agent Architecture. The Tool List Tells Us Everything.

When Meta announced Muse Spark today—their first major model release since Llama 4 nearly a year ago—the benchmarks got most of the attention. But the real story wasn't in the model's performance numbers. It was in what Meta accidentally revealed about its agent strategy. The model itself is notable: hosted (not open weights), competitive with Opus 4.6, Gemini 3.1 Pro, and GPT 5.4 on selected ben...

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DEV Community • 2026-04-08 23:19

How to Test WebSocket Connections in the Browser (No Install Required)

WebSocket bugs are some of the hardest to debug. The connection looks fine, the server starts without errors, but something isn't working — and you don't know if the problem is your client code, your server, or the connection itself. The fastest way to rule out your client code entirely is to test the WebSocket endpoint directly in a browser-based tester. No install, no dependencies, no writing a...

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DEV Community • 2026-04-08 23:15

La terminal de Mac te da miedo — aquí está por qué no debería

Seré honesto contigo. La primera vez que abrí la terminal en mi Mac, la cerré inmediatamente. Esa pantalla negra con el cursor parpadeando me pareció cosa de hackers de película, no de alguien que simplemente quería usar su computador en paz. Eso fue hace años. Hoy la terminal es probablemente la app que más uso en todo el día. ¿Qué cambió? No me volví un genio. Solo entendí qué era realmente l...

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US ignoring evidence Russia is helping Iran because it trusts Putin, says Zelenskyy
newest submissions : multi • 2026-04-08 23:15

US ignoring evidence Russia is helping Iran because it trusts Putin, says Zelenskyy

submitted by /u/Appropriate_Joyfuls to r/worldnews [link] [comments]

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HackerNoon - programming • 2026-04-08 23:15

Qwen3.5-35B-A3B Distills Claude-Style Reasoning Into Visible Step-by-Step AI

Explore Qwen3.5-35B-A3B, a reasoning-focused model distilled from Claude-4.6 Opus with transparent step-by-step outputs.Read All

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DEV Community • 2026-04-08 23:13

HTCPCP/1.0 Client

This is a submission for the DEV April Fools Challenge What I Built Demo The objective is to build a fully functional, spec-compliant HTCPCP/1.0 (Hyper Text Coffee Pot Control Protocol — RFC 2324) client. Code https://github.com/YouthInnoLab/BrewProtocol-AG How I Built It HTML,CSS,Javascript Prize Category David Peng youthinnolab@gmail.com

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