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Mutation Testing: The Missing Safety Net for AI-Generated Code

92% code coverage. No SonarQube criticals. All green. And an AI-generated deduplication bug made it to production because not a single test had challenged the logic. Code coverage tells you what ran.

dev.to Mar 31, 2026 Read more →

Automatically hide _assets folders in Obsidian (until you need them)

This used to be you (and by you I mean me). Articles/ Some Guide/ _Some Guide.md Another take.png Final result.png How to do that.png How to do this.png ... Another Arti

dev.to Mar 31, 2026 Read more →

Open Source, MIT License, Fork of RTK — The Full Story

ContextZip exists because I kept running out of context window in Claude Code. Not because my code was too long, but because npm install output was eating 40% of it. The Origin I was using

dev.to Mar 31, 2026 Read more →

Claude Mythos: What We Actually Know (and What We Don't)

On March 26, 2026, Fortune broke a story that Anthropic had accidentally exposed details of an unreleased AI model through a misconfigured content management system.1 The model is called Claude Mythos

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Cancel JavaScript Async Ops with AbortController

Cleanly Cancel Asynchronous Operations with JavaScript's AbortController Modern web applications heavily rely on asynchronous operations like fetching data from APIs, handling user input wi

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How to Implement Graceful Shutdown in Node.js APIs (Zero Dropped Requests on Deploy)

Deploying a Node.js API without proper graceful shutdown is like pulling the power cord on a running server. Every rolling deploy, every Kubernetes pod restart, every Docker container stop — if your a

dev.to Mar 31, 2026 Read more →

Governing AI Agent Decisions with MCP: How I Built Dead Letter Oracle

Dead Letter Oracle turns failed events into governed replay decisions. The Problem Nobody Solves A failed message hits the DLQ. The fix looks obvious. The replay still breaks producti

dev.to Mar 31, 2026 Read more →

Australian Building Permit Data Is a Goldmine. Here's What We Built With It.

Every time someone in Australia wants to build a pool, knock down a house, or develop a block of townhouses, they submit a Development Application (DA) to their local council. That's public data -- 18

dev.to Mar 31, 2026 Read more →

Your Figma Color System Is Manual. Here's Why That Breaks at Scale.

The Reality No One Talks About You start a project with three brand colors. Six months later, your Figma file has 42 different shades of "slightly different light grey" and your accessibil

dev.to Mar 30, 2026 Read more →

80% of LLM 'Thinking' Is a Lie — What CoT Faithfulness Research Actually Shows

When You're Reading CoT, the Model Is Thinking Something Else Thinking models are everywhere now. DeepSeek-R1, Claude 3.7 Sonnet, Qwen3.5 — models that show you their reasoning process keep

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Are AI Observability Tools Actually Helping?

Observability tools have been feeling very different lately. Almost every platform now claims to offer some “AI-powered” feature, such as anomaly detection, root cause analysis, automated insights, a

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Air Quality & Data Engineering Platform

A comprehensive data engineering platform featuring real-time air quality monitoring, stock market analytics, and YouTube data processing with Apache Airflow, Spark, Kafka, and multiple database tec

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You Don't Need a Neural Network to Spot a Deepfake

Most detection pipelines today are black boxes — a neural network says "fake" and you just trust it. I wanted to see how far pure statistics could go. No deep learning. Just handcrafted image features

dev.to Mar 30, 2026 Read more →

Claude Computer Use: Anthropic AI Now Performs Tasks Like a Human

Artificial intelligence is evolving beyond simple chatbots, and one of the most exciting advancements is Claude Computer Use. This new capability allows AI to interact with computers just like humans—

dev.to Mar 30, 2026 Read more →

What Is a SOAP API? Complete Beginner Guide

SOAP APIs have been around for more than two decades, but they are still widely used in banking, healthcare, telecom, travel, insurance, and enterprise software. If you are learning APIs, you will pr

dev.to Mar 30, 2026 Read more →

I built a trading card game of GitHub repositories

Hello, I'm David, from Valencia (Spain) :) I'm not a developer. I'm a product designer who always wanted to build his own things but never quite got there. That changed recently. With a bit of vibe

dev.to Mar 30, 2026 Read more →

When Debugging Became Belonging: What Nearly 15 Years of Helping Developers Taught Me

The first time code made me question my place in tech, it was not elegant. It was not cinematic either, unless your favorite genre is “junior developer stares at legacy JavaScript while silently barg

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Code Review Rules: The Last Stand of Human Judgment in the AI Era

Code Review Rules: The Last Stand of Human Judgment in the AI Era In 2026, AI agents are shipping PRs faster than any human ever could. The engineering bar has been reset — syntax is dead, architectu

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My side project just had its best month ever. I have no idea why. Here's what happened.

Okay so this is a little embarrassing to admit — I launched bulkpictools.com three months ago and genuinely forgot to check the analytics for like two weeks straight. When I finally opened Google S

dev.to Mar 30, 2026 Read more →

what i actually learned coordinating 15 MCP servers (it's not what you'd expect)

everyone talks about MCP servers like they're the hard part. they're not. writing a single MCP server is maybe 200 lines of code. the hard part is what happens when you have 15 of them running simulta

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