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I Built a State Machine for My AI Agent's Publishing Pipeline. Here's the Pattern That Survived 50 Consecutive Runs.

My AI agent had one job: write an article, post it to a publishing platform, then clean up. Three times out of ten, it would crash mid-pipeline, leave…

pythonprogrammingtutorialmcp
Dev.to Aug 1, 2026, 10:20 UTC
EN

How to Evaluate an AI Video Generator Without Wasting Credits: A Repeatable Test Harness

Most AI video demos show the same thing: A polished final clip A prompt A claim that the result was generated in seconds What they usually do not show…

aitutorialproductivityshowdev
Dev.to Aug 1, 2026, 10:13 UTC
EN

The 4-part brief that keeps coding agents from drifting

Coding agents usually do not drift because they are incapable. They drift because the task leaves too much room for interpretation. A request like “cl…

aiproductivitytutorialopensource
Dev.to Aug 1, 2026, 06:14 UTC
EN

Linear Regression: From Least Squares to Production-Ready Practice

Linear Regression: From Least Squares to Production-Ready Practice Tags : machinelearning , datascience , python , tutorial Linear regression is the f…

datasciencemachinelearningpythontutorial
Dev.to Aug 1, 2026, 03:00 UTC
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Scraping Sites That Block Bots: Cloudflare, DataDome & PerimeterX

For most of the web, scraping is a solved problem: fetch the URL, parse the HTML, done. The interesting sites — the ones with prices, listings, review…

webscrapingtutorial
Dev.to Aug 1, 2026, 01:00 UTC
EN

What More Than Three Decades of Acrobat JavaScript Development Taught Me About Interactive PDF Forms

Interactive PDF forms are often treated as little more than electronic versions of paper documents. A user enters information, selects a few checkboxe…

javascriptproductivitytutorialarchitecture
Dev.to Jul 31, 2026, 20:58 UTC
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[Ruby] The True Value of Flow Control Operators

Introduction Ruby has four types of logical operators: && / || / and / or , each with a different precedence. && / || have higher prec…

rubyprogrammingtutorialcoding
Dev.to Jul 31, 2026, 16:09 UTC
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How to Turn an Architecture Guide into Developer Onboarding

An architecture guide often answers the wrong question for a new contributor. It tells them what components exist, where repositories live, and which …

architecturedevopssoftwareengineeringtutorial
Dev.to Jul 31, 2026, 16:01 UTC
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A Consent-First Phone Privacy Triage Flow for Support Teams

Privacy incidents on personal phones often begin with a vague report: battery drain, unfamiliar login alerts, a device listed in a messaging account, …

securitywebdevprivacytutorial
Dev.to Jul 31, 2026, 11:06 UTC
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Inside Instagram's DASH manifest — from MPD to segment to stitched MP4

The first surprise when you reverse-engineer an Instagram Reel download is that there's no single MP4 to fetch. There's an MPD file, separate video an…

webdevjavascripttutorial
Dev.to Jul 31, 2026, 10:16 UTC
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My Robot Accountant Got an Eviction Notice. So We Moved: Migrating from Bedrock Agents Classic to AgentCore

Ciao Amici 👋 Grab your chai, because the robot accountant is back, and this time we have a moving-day story. If you read my last article, you know I b…

awsdevopsmachinelearningtutorial
Dev.to Jul 31, 2026, 07:40 UTC
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Mastering Python Futures: From Basic Submissions to Event-Driven Concurrency

When building modern Python applications—whether scraping web pages, fetching data from external APIs, or querying databases—IO-bound operations often…

performanceprogrammingpythontutorial
Dev.to Jul 31, 2026, 06:16 UTC
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Browser-based updates getting stuck on the "Confirm your admin email" screen — why Playwright stalls in wp-admin

On hosting environments without SSH access, the fallback is browser automation: Playwright logs into wp-admin and drives the plugin update screen dire…

wordpressphptutorial
Dev.to Jul 31, 2026, 02:02 UTC
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How to Generate Short Videos from Claude.ai with a Seedance MCP Connector

Sometimes the fastest way to prototype a video idea is not to open a separate generation dashboard, but to let your assistant create and poll the task…

aidevtoolstutorialmachinelearning
Dev.to Jul 31, 2026, 01:11 UTC
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Building a C++ HTTP Server from Scratch (Part 1): Setting Up TCP Sockets

Introduction In this series I will be going through how to build an HTTP Server from scratch in C++ using POSIX APIs, and actually have it serve a web…

cppnetworkprogrammingtutorial
Dev.to Jul 30, 2026, 22:13 UTC
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From Software Engineer to AI Engineer - Part 1: A whole new world

You are a software engineer. Your craft honed through years of careful practice. Then suddenly, there are these chatbots and agents. Overnight, your c…

aitutorialprogramming
Dev.to Jul 30, 2026, 22:00 UTC
EN

Cloud PBX for Legal Sector: Technical Architecture Guide

Cloud PBX gets pitched as a phone system upgrade. That framing undersells what it actually is: a real-time telephony application that connects VoIP in…

developmentcloudcomputingtutorialbackend
Dev.to Jul 30, 2026, 20:17 UTC
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Python Itertools: 10 Tricks for Cleaner Code

Python Itertools: 10 Tricks for Cleaner Code tags: python, programming, tips, tutorial tags: python, programming, tips, tutorial Python Itertools: 10 …

pythonprogrammingtipstutorial
Dev.to Jul 30, 2026, 12:00 UTC
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Debugging LLM Calls: How to Trace What Your AI Agent Actually Did

So I was messing around with a little side project, a chatbot that answers questions about the World Cup. Fun, low stakes, nobody's paycheck depends o…

aiproductivitytutorialtesting
Dev.to Jul 30, 2026, 10:07 UTC
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React useUpdateEffect Hook: Skip the First Render (2026)

React useUpdateEffect Hook: Skip the First Render (2026) useEffect has no opinion about why it's running. Mount, update, doesn't matter — the callback…

reactjavascriptwebdevtutorial
Dev.to Jul 30, 2026, 02:09 UTC
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Build a Typed Training Data Client in TypeScript with intervals-icu

If your training dashboard starts as one HTTP request and grows into athletes, activities, wellness, workouts, gear, and performance data, a hand-writ…

typescriptapitutorialfitness
Dev.to Jul 29, 2026, 15:36 UTC
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How to Remove Line Breaks from Copied PDF Text Without Destroying Paragraphs

Copying text from a PDF often produces something like this: The copied paragraph looks normal inside the PDF, but every visual line becomes a hard lin…

javascriptpythonproductivitytutorial
Dev.to Jul 29, 2026, 14:45 UTC
EN

Selenium with Python: The Ultimate Guide to Web Automation Testing

Introduction : In today's fast-paced software development world, delivering high-quality applications quickly is a top priority. Manual testing is eff…

automationpythontestingtutorial
Dev.to Jul 29, 2026, 06:02 UTC
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Smart Traffic Systems: Configuring Flow for a Smarter City

Smart Traffic Systems: Configuring Flow for a Smarter City Ever found yourself stuck in a gridlocked intersection, wondering why the lights aren't coo…

codingprogrammingbeginnerstutorial
Dev.to Jul 29, 2026, 06:00 UTC
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Build a Browser Automation Tool with Selenium

Build a Browser Automation Tool with Selenium tags: python, selenium, automation, tutorial tags: python, selenium, automation, tutorial Build a Browse…

pythonseleniumautomationtutorial
Dev.to Jul 29, 2026, 06:00 UTC
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Unicode Isn't a Font: How Fancy Text Generators Actually Work

If you've ever seen text like this: 𝓗𝓮𝓵𝓵𝓸 𝐇𝐞𝐥𝐥𝐨 𝕳𝖊𝖑𝖑𝖔 🅷🅴🅻🅻🅾 you've probably assumed it's using a custom font. It isn't. These styles are actually Unic…

javascriptprogrammingtutorialwebdev
Dev.to Jul 28, 2026, 23:36 UTC
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Building Local AI Agents in Java with Tools4AI and Ollama: An Insurance Claims Use Case

Tools4AI is a 100% Java agentic AI framework that turns any annotated Java method into an AI-callable action. Ollama runs open models like Llama 3.1 a…

aijavallmtutorial
Dev.to Jul 28, 2026, 21:20 UTC
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Build a REST API with Django REST Framework

Build a REST API with Django REST Framework tags: python, django, api, tutorial tags: python, django, api, tutorial Build a REST API with Django REST …

pythondjangoapitutorial
Dev.to Jul 28, 2026, 18:00 UTC
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Python Logging: Best Practices for Production Apps

Python Logging: Best Practices for Production Apps tags: python, logging, devops, tutorial tags: python, logging, devops, tutorial Python Logging: Bes…

pythonloggingdevopstutorial
Dev.to Jul 28, 2026, 16:00 UTC
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Loop Engineering: Stop Failed Successfully

After a lovely and productive conversation with your client, with still ringing ears, you check the coding agent's last log messages on a ticket that …

loopengineeringaiclaudetutorial
Dev.to Jul 28, 2026, 12:47 UTC

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