DEV Community • 2026-04-11 19:29

I Built an Open-Source n8n Alternative with AI Agents — Here's What I Learned

I've been working on workflow automation tools for a while, and I always felt something was missing — the ability to combine visual workflow building with real AI agent capabilities. So I built SiberCron, and today I'm open-sourcing it. What is SiberCron? SiberCron is an open-source, self-hosted workflow automation platform. Think of it as n8n meets AI Agents — you get a visual drag-an...

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Understanding Transformers Part 5: Queries, Keys, and Similarity
DEV Community • 2026-04-11 19:26

Understanding Transformers Part 5: Queries, Keys, and Similarity

In the previous article, we explored the self-attention concept for transformers, in this article we will go deeper into how the comparisons are performed. Building Query and Key Values Let’s go back to our example. We have already added positional encoding to the words “Let’s” and “go”. Creating Query Values The first step is to multiply the position-encoded values for th...

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US military says two of its ships crossed through Strait of Hormuz
newest submissions : multi • 2026-04-11 19:25

US military says two of its ships crossed through Strait of Hormuz

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

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DEV Community • 2026-04-11 19:24

Blame-aware code review — why your AI reviewer should only flag what you changed

Here's a problem that sounds minor but adds up fast: you open a pull request, run an AI code reviewer, and get 40 findings. Twelve of them are in files you touched. The other 28 are in code that was there before you arrived. Now you have a decision to make about 28 issues that aren't your fault, weren't introduced by your change, and probably can't be fixed in this PR without scope creep. You eit...

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DEV Community • 2026-04-11 19:23

In the AI age, Java is more relevant than ever

Powerful, scalable, reliable, cost-efficient, and ready to be your next AI language, Java can help modernize critical enterprise applications. Java is the language used throughout enterprise platforms: ERPs, your ecommerce backends, analytics, logistics, and business workflows. You have decades of code, build pipelines, deployment practices, and operational runbooks all built around the JVM. When...

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DEV Community • 2026-04-11 19:22

MCP Security Patterns 2026: gVisor vs Firecracker for AI Agent Sandboxing

MCP Security Patterns 2026: gVisor vs Firecracker for AI Agent Sandboxing The Security Imperative The Model Context Protocol (MCP), introduced by Anthropic in November 2024, has become the "USB-C for AI" — enabling large language models to interact securely with external data, applications, and services. However, MCP's ability to access data and execute code introduces signif...

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DEV Community • 2026-04-11 19:22

Cursor 3 Just Turned My AI Agent Workflows Into Something Actually Scalable

Hey everyone, I’ve been living in the trenches with AI agents for the last year-plus. Not just chatting with Claude or Cursor once in a while — I mean running fleets of them. Parallel agents tackling features, tests, refactors, research, even spinning up entire microservices while I jump between projects. It’s exhilarating… until it isn’t. Because until last week, managing all that chaos felt li...

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newest submissions : multi • 2026-04-11 19:21

Seeking advice on optimizing Image-to-3D workflow for realistic face mapping

Hey everyone, I'm currently working on a project where I need to convert 2D face maps or portraits into 3D models. I’ve been experimenting with some AI tools like TripoSR and various ComfyUI workflows, but I’m struggling to get the mesh topology clean enough for further rigging and animation. ​Does anyone have recommendations for a more robust node setup or a specific model that handles facial fea...

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newest submissions : multi • 2026-04-11 19:21

[ Removed by Reddit ]

[ Removed by Reddit on account of violating the content policy. ] submitted by /u/CyberKingM3L0 to r/programming [link] [comments]

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DEV Community • 2026-04-11 19:21

How We Made Next.js ISR Page Cache Efficient with Redis

Next.js ISR works great on a single pod. But the moment you scale to multiple replicas — whether on Kubernetes, ECS, Cloud Foundry, or any orchestrator — you get a hidden efficiency problem: every pod independently regenerates the same pages, writes duplicate cache entries, and hammers your backend on every restart. We run a high-traffic Next.js app serving tens of thousands of requests per minut...

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DEV Community • 2026-04-11 19:19

🚀 I Built an Open Source AI Code Assistant (OpenWorkbench-AI)

AI is rapidly changing how we write code. From autocomplete tools to full-blown AI agents, developers are no longer just writing code — we are orchestrating intelligence. So I decided to build something myself 👇 🔗 https://github.com/upendra-manike/OpenWorkbench-AI/tree/main/ai-code-assistant 💡 What is OpenWorkbench AI Code Assistant? OpenWorkbench AI is an AI-powered coding assis...

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DEV Community • 2026-04-11 19:19

Building Cipher: Where We Are, What Broke, and What’s Coming Next

Most AI tools stop at generating code. Cipher doesn’t. It walks straight into Unreal Engine and builds. That sounds cool on paper. In practice, it’s been messy, frustrating, and honestly… kind of insane to get working. This is where we actually are right now. What Cipher Actually Does (Right Now) At its core, Cipher is a loop: Goal → Plan → Validate → Execute → Verify → Repeat You give it ...

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Lobsters • 2026-04-11 19:17

Writing design docs

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DEV Community • 2026-04-11 19:17

MCP Security Vulnerabilities in 2026: Command Injection, SSRF & Mitigation Strategies

MCP Security Vulnerabilities in 2026: What Every Agent Developer Must Know The Model Context Protocol (MCP) has become the universal "USB-C port for AI applications" — but with great connectivity comes great security risk. Critical Vulnerabilities Discovered 1. Command Injection MCP servers that execute shell commands without proper input sanitization are vulnerab...

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Hacker News • 2026-04-11 19:17

Show HN: Bitcoin and Quantum Computing – a three-part research series

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newest submissions : multi • 2026-04-11 19:17

Bir Yüzü Haritalayıp Textureli 3D modele çevirme yardımı

Herkese selam, şu an 2D yüz haritalarını veya portreleri 3D modellere dönüştürdüğüm bir proje üzerinde çalışıyorum. TripoSR ve ComfyUI gibi bazı yapay zeka araçlarını deniyorum ancak mesh topolojisini (yüzey yapısını) rigleme (kemik sistemi) yapacak kadar temiz hale getirmekte zorlanıyorum. ​Yüz hatlarını yüksek sadakatle işleyen daha sağlam bir node yapısı veya özel bir model önerisi olan var mı?...

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DEV Community • 2026-04-11 19:16

Why "Vibe Coding" Your Data Warehouse is a Terrible Idea

Recently, the term "vibe coding" has been everywhere. It’s that practice of sitting down, opening your editor (often with an AI assistant), and just writing code in the flow state. You test, iterate, and build without a massive upfront blueprint. If you are spinning up a landing page or writing a quick Python automation script, vibe coding is liberating. The problem starts when this culture tries...

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Hacker News: Front Page • 2026-04-11 19:15

How We Broke Top AI Agent Benchmarks: And What Comes Next

Article URL: https://rdi.berkeley.edu/blog/trustworthy-benchmarks-cont/ Comments URL: https://news.ycombinator.com/item?id=47733217 Points: 7 # Comments: 0

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HackerNoon • 2026-04-11 19:15

Beneath the Cone

A tense love triangle unfolds in an industrial setting where suspicion turns deadly. A husband, aware of betrayal, leads his rival through ironworks under the guise of a tour. Amid roaring furnaces and molten metal, he executes a brutal act of revenge. The story captures jealousy, psychological tension, and the terrifying power of industrial machinery as a weapon.

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DEV Community • 2026-04-11 19:14

I Built an AI Code Reviewer That Uses Any LLM to Review Claude Code Output — Zero Dependencies, 7 Commands, Infinite Engines

I Built an AI Code Reviewer That Uses Any LLM to Review Claude Code Output — Zero Dependencies, 7 Commands, Infinite Engines TL;DR: I built cc-review — a pure bash Claude Code skill that spins up any external LLM (Gemini, Ollama, DeepSeek, OpenAI) to independently review Claude's own code output. No npm. No pip. Just 7 slash commands, a YAML config, and an uncomfortable truth about tru...

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