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DEV Community · Technology

From Prompt Engineer to Agent Engineer: The 7 Skills You Need to Build AI Agents

Discover the key skills you need to build AI agents that thrive in real-world environments, moving beyond crafting prompts to engineering robust systems. The world of artificial intelligence is rapidly evolving. Just a few years ago, being a “prompt engineer” was about crafting clever instructions...

Manish Shivanandhan 2 days ago

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DEV Community · Technology

From Request to Production in One Push. No Mockup Tool Required.

There is a rule in software development that everyone quotes and nobody questions: "Don't use mockups in production." That rule was written for paper prototypes. What happens when the mockup is the code? The Traditional Workflow A user has an idea. Here is what usually happens: User...

Art 2 days ago

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DEV Community · Technology

How to Compress SVG Files: Tools, Techniques, Config

How to Compress SVG Files: Tools, Techniques, and Config SVG files are text. Specifically, they are XML — a tree of elements describing paths, shapes, gradients, filters, and metadata. Unlike raster formats (PNG, JPEG, WebP), compressing SVG has nothing to do with pixel data or color dept...

Pixotter 2 days ago

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DEV Community · Technology

Interview #145: API: Difference between 500 vs 503 status codes?

The HTTP status codes 500 (Internal Server Error) and 503 (Service Unavailable) are both server-side error responses (part of the 5xx class), indicating that something went wrong on the server while processing a request. However, they serve distinct purposes and convey different meanings about the n...

Shashi Bhushan Kumar 2 days ago

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DEV Community · Technology

GN: Domain-Adaptive Lossless Compression for LLM Conversation Streams

PDF version: github.com/atomsrkuul/glasik-core/blob/master/GN_PAPER_V2.pdf Code: github.com/atomsrkuul/glasik-core (MIT) Robert Rider | Independent Researcher github.com/atomsrkuul/glasik-core (MIT) Abstract I present GN (Glasik Notation), a domain-adaptive lossless compressio...

Buffer Overflow 2 days ago

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DEV Community · Technology

I Spent 40 Hours Building AI Prompts for Competitive Intelligence — Here's What Actually Works

I run competitive intelligence for SaaS founders. Every week I produce detailed reports on competitor pricing, positioning, customer sentiment, and market moves. For the first year I did it manually. Hours on G2, hours on LinkedIn, hours reading job listings to reverse-engineer strategy. It was bru...

Boehner 2 days ago

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DEV Community · Technology

Why Do Big Websites Use Cloudflare?

Okoro, this is the 25th website you're building, and you don't care to know what, why, and how Cloudflare actually works? Wooo. Dishonor on you. Well, on a serious note, this is the topic of the day. Two. Three. Four. Let's Qwiikly get started. The Internet's Backbone Sometime a...

Emmanuel Sunday 2 days ago

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DEV Community · Technology

Apache Data Lakehouse Weekly: April 9–15, 2026

The Iceberg Summit wrapped in San Francisco, leaving behind a set of in-person alignments that are now surfacing as concrete proposals on the dev lists. Parquet's ALP encoding vote closed, Polaris 1.4.0 planning accelerated, and Arrow's engineering community tackled two interlinked decisions about i...

Alex Merced 2 days ago

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DEV Community · Technology

AI Weekly: Agents, Models, and Chips — April 9–15, 2026

Three stories shaped the past week: AI coding tools are merging into unified agentic stacks, a wave of new language models raised the multimodal baseline across the industry, and chipmakers moved hardware designed specifically for agentic workloads into general availability. Here is what you need to...

Alex Merced 2 days ago

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DEV Community · Technology

SIMD in GO

When Go 1.26 released - they released something interesting under the experimental tag. SIMD: Single instruction multiple data Now the problem that modern cpus face is that cpu clock rate has stagnated. So if we take scalar approach to executing instruction. For example float multiplication....

Peter Paravinja 2 days ago

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DEV Community · Technology

What Happens After You Vibe Code: Production Observability for Solo Developers

I shipped a feature on a Friday afternoon. Nothing complicated, a webhook handler that triggered a background job. Tested it locally, looked good. Deployed and moved on. On Monday morning I opened my inbox and found seventeen emails from users reporting that nothing had happened after they complete...

Alex Cloudstar 2 days ago

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DEV Community · Technology

The Real Cost of Running AI in Production: How to Cut Your LLM Bills by 60 to 90 Percent

I remember the exact moment I realized I had a problem. Three weeks into shipping my first AI feature in production, nothing fancy, a document summarization tool built on Claude's API. Maybe 200 users at that point. I opened the billing dashboard on a Tuesday morning and saw a number that made me c...

Alex Cloudstar 2 days ago

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DEV Community · Technology

When a Precise Specification Is Not Enough

When people talk about requirements for industrial software, most imagine what an operator sees: process screens, alarms, trends, production overviews, or dispatch panels. And that is largely justified. These parts of the system tend to have a relatively clear structure, as they are derived from the...

mortylen 2 days ago

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DEV Community · Technology

Javascript Array iteration methods

Array iteration method in javascript are built in tools allows you to operate on every item in an array,One at a time.The most of the method a callback function as a arguments.Which is execute for each elements in a array. Array Iteration Methods Array forEach Array map() Array flatMap() Array f...

mohandass 2 days ago

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DEV Community · Technology

IAM Identity Center account assignments for Terraform member accounts

IAM Identity Center account assignments for Terraform member accounts Once sandbox and development member accounts exist in AWS Organizations (for example from Terraform as in a companion article on that layout), they do not automatically appear in the AWS access portal. IAM Identity Cent...

John Ajera 2 days ago

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DEV Community · Technology

Building a Self-Hosted Bot Management Platform with Docker, FastAPI and React

Managing more than two or three automated scripts in production is where things get messy. You end up with a collection of Python files scattered across servers, credentials hardcoded or stored in plaintext somewhere, no visibility into what's running or failing, and deployments that require SSH acc...

[Tanwydd] 2 days ago

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DEV Community · Technology

I Built a Compression Algorithm That Beats Gzip in 2 Weeks. I Have an A+ Cert.

How a networking student ended up writing Rust, beating industry-standard compression, and learning more about computers than any classroom taught me. I was messing around with LLM APIs. Claude, GPT, the usual. And I kept hitting the same wall: context windows cost money. Every token you send costs...

Buffer Overflow 2 days ago

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DEV Community · Technology

Converting XML Feeds to Plain PHP Arrays in Modern PHP

When people say they need to “work with XML” in PHP, that phrasing is often already slightly misleading. In most business applications, XML is not the format you actually want to keep around. It is just the format you received. A supplier feed arrives as XML. A marketplace export arrives as XML...

Nicholas Volkhin 2 days ago

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DEV Community · Technology

I Almost Installed a Malicious Python Package: So, I Built trustcheck

A few months ago, I was doing something completely normal. I needed a small Python library. So, I did what every Python developer does: pip install <package> But before hitting enter I paused. Something felt off. The package name looked right... but also slightly wrong. And that momen...

Halfblood Prince 2 days ago

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DEV Community · Technology

How We Ran 28 AI Agents on a Single Server (And What Broke)

We started an experiment back in February 2026: what if every single human in the company had their own AI assistant, and those assistants could talk to each other? Eight weeks in, we have 28 agents running on a single commodity hardware box. They're handling operational toil, marketing coordination...

jay wong 2 days ago

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DEV Community · Technology

Creating a Vertical Area Chart with JavaScript: 80+ Years of U.S. Presidential Approval Data

Traditionally, charts that visualize data over time are horizontal. But sometimes a vertical layout is a better fit. In this tutorial, you will learn how to create an interactive vertical area chart using JavaScript step by step. The practical example uses monthly approval and disapproval ratings o...

andreykh 2 days ago

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DEV Community · Technology

I Built an LLM Gateway That Learns Which Model to Use — Here's How the Routing Works

How it works: Request arrives at an OpenAI-compatible endpoint Classifier detects task type + complexity Adaptive router picks the highest-scoring model for that cell Quality feedback (user ratings + LLM judge) continuously improves routing Change 2 lines in your code. That's it. But it's more tha...

Nicholas Blanchard 2 days ago

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DEV Community · Technology

Claude Opus 4 and Sonnet 4 Retire June 15

Anthropic deprecated claude-opus-4 and claude-sonnet-4 on April 14 with retirement set for June 15 Both models get replaced by their 4.6 versions with 1M context, adaptive thinking, and higher output limits Opus 4.6 supports 128K max output tokens versus Opus 4's 32K, and 1M context is included at...

RAXXO Studios 2 days ago

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DEV Community · Technology

Stop Wasting Hours on "Project Setup": How I Automated Production-Ready Go APIs

Why I built a CLI to bridge the gap between "Hello World" and a production-ready microservice in 60 seconds. The "Boilerplate Tax" As a backend engineer, I noticed a recurring pattern. Every time I started a new service, I spent the first few hours doing manual labor that ha...

Vivek Sharma 2 days ago

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