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DEV Community • 2026-04-25 07:35

Crucible: An AI Tool for Real-Time Threat Detection

Cyber threats are growing rapidly, and most traditional systems react only after damage has already been done. As a developer, I wanted to explore whether it’s possible to build a system that can detect and stop threats in real time using AI. This led me to build Crucible — an AI-powered security platform designed to monitor activity, detect suspicious behavior, and respond instantly. Most secu...

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DEV Community • 2026-04-25 07:35

Trial by Fire: From Garbage Excel to Relational Graph with Python and Pandas

1. The Hook: Industrial Data Entropy In standard academic theory, data sets are inherently clean. In the active reality of the industrial supply chain, obsolete ERPs continually export garbage arrays. Receiving a flat Bill of Materials systematically exported from a legacy database immediately binds you to processing massive structural entropy: entirely void parameter cells, anomalous ...

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DEV Community • 2026-04-25 07:30

I Built an Anime Tracker That Works Offline (No Backend!)

I got tired of anime tracking apps that need constant internet, so I built my own over a weekend. It's a simple kanban board (React + Tailwind) that saves everything to localStorage first - works completely offline. You can optionally sync to your own Google Sheet for cloud backup, no backend server needed. Key thing: your data stays in YOUR browser. If you enable sync, it goes to YOUR spreadshe...

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DEV Community • 2026-04-25 07:24

TF-IDF + LLM Reranking: How I Improved Vector Search Accuracy from 60% to 86%

TF-IDF + LLM Reranking: How I Improved Vector Search Accuracy from 60% to 86% Vector search is powerful — but it’s not perfect. When I was building a database discovery pipeline at work, our initial semantic search was only matching the right schemas about 60% of the time. That wasn’t good enough for production. Here’s exactly how I fixed it using a hybrid TF-IDF and LLM reranking approach. The Pr...

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DEV Community • 2026-04-25 07:22

One Open Source Project a Day (No. 47): Harness Engineering —— The Paradigm Shift from "Prompt Engineering" to "Harnessing"

Introduction "Precision guidance for machine intelligence, rather than unconstrained chaos." This is the 82nd article in the "One Open Source Project a Day" series. Today, we delve into Harness Engineering (harness-engineering). As AI coding tools like Claude Code, GitHub Copilot, and Gemini evolve, we are reaching a tipping point where work shifts from "humans typing in an IDE" to ...

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Why fixing 'Direct/None' alone won't reduce GA4's 'unknown traffic'

DEV Community • 2026-04-25 07:22

Why fixing 'Direct/None' alone won't reduce GA4's 'unknown traffic'

A friend running a D2C brand told me last week: "I enforced UTMs across every ad and email link to reduce Direct / (none) in GA4. The Direct share dropped, but the total 'unknown traffic' in the report barely changed. What did I miss?" I dug into it. The answer is straightforward — and slightly embarrassing for me, because I had never internalized it cleanly either. The "unknown traffic" you see...

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DEV Community • 2026-04-25 07:21

Why I Use Playwright for AI Agent Automation (And You Should Too)

Why I Use Playwright for AI Agent Automation (And You Should Too) When I first started building AI agents that needed to interact with web-based banking systems, I tried everything — Selenium, requests, BeautifulSoup. Nothing came close to what Playwright offers. Here’s why I switched and never looked back. What is Playwright? Playwright is a modern browser automation library developed by Microsof...

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DEV Community • 2026-04-25 07:17

TestSprite Bug Hunt: My Experience and Translation Notes

TestSprite Quickstart Guide Chinese Translation By JamesOpenClaw TestSprite 快速入门指南 — 中文完整翻译原文: TestSprite MCP Server Getting Started Documentation 翻译: JamesOpenClaw (AgentHansa) 语言: 简体中文字数: 约 2,800 中文字符 1. 介绍（Introduction） TestSprite 是一款面向开发者的 AI 软件测试代理。它的核心目标是把传统需要数小时甚至数天的测试工作压缩到 10–20 分钟内完成，并且几乎不需要人工介入。传统 QA 流程通常涉及：写测试用例 → 搭建环境 → 执行测试 → 排查失败 → 修复再回归...

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DEV Community • 2026-04-25 07:13

Continuous monitoring caught a credential leak in a published MCP package. Six republishes later, it is still there.

Continuous monitoring caught a credential leak in a published MCP package. Six republishes later, it is still there. This is a disclosure writeup. It describes the case at the class level only. No credential values are quoted anywhere in this post. What was found The package is fa-mcp-sdk on npm. It is distributed as a Model Context Protocol SDK, which means it is installed ...

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Hacker News • 2026-04-25 07:06

Show HN: Agent MCP Studio – build multi-agent MCP systems in a browser tab

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DEV Community • 2026-04-25 07:05

Bypass Netflix's Household Verification

I built a browser extension that bypasses Netflix's household verification Hey everyone, I originally started out using extensions like Nikflix to get around the household limit, but they had a lot of annoying issues. You constantly had to reload the page when switching episodes, and they injected their own custom UI which just felt janky and out of place. I tried building on top of them at firs...

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𝚓𝚊𝚟𝚊𝚜𝚌𝚛𝚒𝚙𝚝 • 2026-04-25 07:00

Showoff Saturday (April 25, 2026)

Did you find or create something cool this week in javascript? Show us here! submitted by /u/AutoModerator [link] [comments]

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DEV Community • 2026-04-25 07:00

Azure ML Pipelines + Azure DevOps: CI/CD for ML with Terraform 🔁

Manual ML retraining is a reliability risk. Azure ML Pipelines orchestrates the ML workflow while Azure DevOps automates testing, validation, and deployment on every code push. Here's how to build the full CI/CD stack with Terraform. Through Series 5, we've built the workspace, deployed endpoints, and set up the feature store. The final piece is automation. Right now, retraining means a data scie...

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DEV Community • 2026-04-25 06:56

Join me in building a community-maintained fork of the Quill Editor 🙌

TL;DR - Quill is abandoned, I want to build a community fork Quill is a flexible and modular rich text editor which gained popularity in the recent years. With the rise of AI-based code inspections, we get new CVEs reported regularly. Quill is no exception here, looking at the list of open issues related to recent CVEs and open pull requests to fix them. Is Quill abanndoned? 😪 The big...

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Hacker News: Front Page • 2026-04-25 06:56

Escrow Security for iCloud Keychain

Article URL: https://support.apple.com/guide/security/escrow-security-for-icloud-keychain-sec3e341e75d/web Comments URL: https://news.ycombinator.com/item?id=47899334 Points: 5 # Comments: 0

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DEV Community • 2026-04-25 06:56

The most important feature in our AI journaling app is the one where the AI shuts up. Day 7 of 30. 🌿

Day 7 of building Evengood — a 60-second end-of-day reflection app — in public on the Build with MeDo hackathon. Today I shipped the feature I'm most proud of in seven days of building. It's the feature where the AI doesn't do anything. The problem Every AI journaling app I've ever tried has the same failure mode. You type something heavy — "my dad died last week," "I had a panic att...

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DEV Community • 2026-04-25 06:56

From Tools to Teammates: What the Rise of AI Agents at Google Cloud NEXT ’26 Taught Me About the Future of Software

While following the announcements from Google Cloud NEXT ’26, one idea kept coming back to me: AI is no longer just a tool we use — it’s becoming something that can work alongside us. That shift felt subtle at first, but the more I explored the updates, the clearer it became that automation is evolving into something more autonomous and system-driven. Instead of simply responding to commands, mode...

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DEV Community • 2026-04-25 06:49

Claude Code Is Just a While Loop — I Intercepted the API to Prove It

You type one line into Claude Code and hit Enter. In the background, ~80 KB of JSON gets shipped to Anthropic. System prompts, tool definitions, your CLAUDE.md, the full conversation history — all of it, every single request. The interesting part isn't the size. It's what's inside, why it's structured that way, and why the bill doesn't scale in proportion to it. I put a man-in-the-middle proxy be...

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DEV Community • 2026-04-25 06:44

Google Cloud NEXT '26 Just Changed How I Think About Real-Time Pricing APIs

I've been building Pricing APIs for years. And if you've ever built one — a real one, one that has to serve millions of customers, react to stock levels, competitor moves, time of day, demand surges, and promotional calendars — you know the dirty secret at the heart of most of them. They're not really real-time. They're very fast batch jobs wearing a real-time costume. You precompute prices on...

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DEV Community • 2026-04-25 06:41

How I Stopped My AI Agent From Reinventing the Wheel

Yesterday I told my AI agent, Misti: "Scrape e-commerce prices daily." The old Misti would have immediately generated a Python script. Selenium. BeautifulSoup. Cron job. Error handling. 40 lines of code. 30 minutes of my time reviewing it. The new Misti paused and asked: "Are you sure we need to build this?" Then she searched. Found Firecrawl, Playwright Scraper, and Brightdata in under two min...

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