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DEV Community · Technology

Building for Agentic Commerce: What Devs Need to Know Before It's Too Late

Building for Agentic Commerce: What Devs Need to Know Before It's Too Late If you're building ecommerce systems right now, here's something worth thinking about: what happens when your customers aren't humans anymore? I don't mean this in a sci-fi dystopia way. I mean practically, archit...

Marc Newstead 2 days ago

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DEV Community · Technology

Running Tailscale Without sudo: The Userspace-Networking Trade-offs Nobody Mentions

Corporate policy: no admin rights on my work laptop. My problem: I needed to reach that machine — and SSH into my other machines — from a Galaxy Tab while away. Filing a VPN request with the security team would mean paperwork and a hard no for personal tooling. And without the sudo password, install...

DevLog 2 days ago

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DEV Community · Technology

Codex PR Review: Automatic Reviews, Triggers, Review Rules

Codex's GitHub PR review works better than I expected. Before opening a PR I already review the code several ways, in Claude and in Codex both. I've had the main agent review it, attached a different model as a subagent reviewer, run it in two stages. Code that survives all of that still gets caught...

John Lee 2 days ago

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DEV Community · Technology

Managing ChatGPT Memory: Review, Edit, Delete

ChatGPT remembers you whether or not you asked it to. If its answers start matching your tone one day, or it explains something on the assumption you do a job you never mentioned, that's memory. It isn't only ChatGPT. Claude has memory, and so do most of the coding tools shipping now. The model con...

John Lee 2 days ago

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DEV Community · Technology

I turned a 30-second security check into an app you can connect to Claude or ChatGPT

Last week I checked the email security of eight automation agencies and seven of them could be spoofed. The check itself is two DNS lookups and takes about thirty seconds, which raises an obvious question: if it's that cheap, why does almost nobody run it? Because it's thirty seconds you have to re...

Kacper 2 days ago

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DEV Community · Technology

How Should Developers Handle BLE Reconnection in Medical Device Apps?

Building Bluetooth Low Energy (BLE) connectivity for a medical device companion app is relatively straightforward when everything goes right. The harder engineering problem begins when the connection drops. A wearable moves out of range. The peripheral reboots. Android kills a background process....

Rank Alchemy 2 days ago

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DEV Community · Technology

How I Built a Free Watermark-Free Xiaohongshu (RedNote) Downloader — and What I Learned About Anti-Scraping

The Problem Xiaohongshu (also known as RED or RedNote) is China's fastest-growing lifestyle platform — 300M+ monthly active users sharing beauty tutorials, product reviews, and travel content. But if you've ever tried to save a video from it, you know the pain: Screen recording = terrib...

wangxiaolou 2 days ago

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DEV Community · Technology

When AI Agents Meet Zero Trust: Building NEXUS on Istio Service Mesh

Everyone is building AI agents. Most of them have far more permissions than they should. One of the biggest questions facing platform engineering teams today is not whether AI can help operate production systems. The real question is: how do you prevent an AI agent from becoming the next privileged...

DevonPatrick Adkins 2 days ago

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DEV Community · Technology

Verifying Medical Device OEM Documents Programmatically: FDA, EUDAMED, and NANDO Data Sources

When you are building tooling for private label medical devices — especially a category like microneedling pens, which sits at the border of cosmetics and regulated medical devices — the hardest part is not manufacturing. It is verifying the paperwork. Certificates arrive as PDFs, scans, and screens...

tbphp Precision Tech 2 days ago

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DEV Community · Technology

The honest boundary of argument-space verification — and what the Evidence Locker adds

The honest boundary of argument-space verification — and what the Evidence Locker adds Agent Determinism Illusions (Part 11) 2026-08-24 Part 10 tested C3 (argument-space runner) against five scenarios and three evaluators. The result: C3 scored 5/5, synonym-immune, DPI-bound made concre...

zxpmail 2 days ago

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DEV Community · Technology

I Added Cryptographic Receipts to MCP Tool Calls in 20 Lines of Code

If you've built an MCP server, you know the drill: define a tool, write a handler, return a result. The SDK handles the protocol, the transport, the schema validation. It feels clean. It also means you have zero verifiable evidence that what your handler returned is what the agent actually received...

correctover 2 days ago

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DEV Community · Technology

Claude Skills API GA'ya Çıktı: Yenilikler ve Nasıl Kullanılır

Claude Beceriler API'si: Özel becerileri yükleme, sürümleme ve çalıştırma Claude Beceriler API'si 20 Ağustos 2026 itibarıyla genel kullanıma sunuldu. Artık beta başlığı kullanmadan https://api.anthropic.com/v1/skills üzerinden özel beceriler oluşturabilir, sürümleyebilir ve yönetebilirsin...

Tobias Hoffmann 2 days ago

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DEV Community · Technology

I Built a Real-World Customer Payment Analysis Tool in Python

Hey guys, hope you're all doing well. Most programming projects start with something familiar: "Let's build a to-do app." I've built projects like that myself. They're useful for learning, but recently I wanted to build something different. I wanted to take a real business problem and turn it...

Bek Brace 2 days ago

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DEV Community · Technology

I Built My Own Python Package Manager. Three Bugs Taught Us More Than the Design Did.

A field report from building Pythonaibrain-Warden — an npm-inspired dependency and environment manager for Python with its own lock file, its own virtual environments, and a few opinions pip doesn't share. The itch Python's dependency story is not broken, exactly. It's plural. pip ins...

Divyanshu Sinha 2 days ago

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DEV Community · Technology

JSONPath — How to Query and Filter JSON Data

JSONPath is a query language for JSON, providing the same kind of document-navigation power that XPath gives XML developers. Instead of writing nested loops or chained property accesses, you write a compact expression that pinpoints exactly the data you need — whether it lives three levels deep or i...

Deepak Kumar 2 days ago

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DEV Community · Technology

T-PHANTOM OS: the First Saudi Cybersecurity-Focused Linux Distribution T-PHANTOM OS: أول توزيعة سعودية متخصصة

A Saudi-developed platform for digital forensics, DFIR, authorized penetration testing, reverse engineering, and privacy T-PHANTOM OS is introduced as the first Saudi-developed cybersecurity-focused Linux distribution: a bilingual Arabic and English security operating system created for practical c...

م. طلال السحيمي 2 days ago

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DEV Community · Technology

Observability: Understanding Your System Through Logs, Metrics, Traces & Monitoring

Modern distributed systems are complex. A single user request might travel through multiple services, databases, caches, queues, and external APIs before a response is returned. User │ ▼ API Gateway │ ▼ User Service ───→ Redis │ ▼ Order Service │ ▼ Payment Service │ ▼ Databas...

Tanu Priya 2 days ago

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DEV Community · Technology

How to Create Your Own Marketplace in 2026: A Step-by-Step Guide

If you want to create your own marketplace, the gap between idea and live platform is smaller than most guides suggest - but the decisions you make in the first 60 days determine your cost structure, vendor experience, and scalability for years. This guide walks through every step of building a mult...

Rigby 2 days ago

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DEV Community · Technology

How to Quickly Understand and Improve AI Agent Design

Coding with agents really has surfaced a bunch of problems and challenges we never ran into when writing code by hand. Agents work even faster than you'd expect. That's an advantage — and also a liability. The Problem We're used to discussing the plan with the AI before implementing anyt...

code plato 2 days ago

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DEV Community · Technology

Where the money actually goes when you generate at scale

After a few months of running generation through an agent, the surprising thing wasn't the cost per call. It was how much of the spend went to work I didn't need to do. Almost every fix below is about ordering and verification, not about paying less per call. 1. Iterate on the cheap tier....

xiaodong Zhang 2 days ago

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DEV Community · Technology

Front-load the free work — turning a 90-minute recording into short clips

The obvious way to cut a 90-minute recording into short clips is to hand the whole thing to a model and ask it to find the good parts. I tried that. It's expensive and the output degrades as it goes. Why the obvious way fails 90 minutes of transcript is an enormous amount of context, an...

xiaodong Zhang 2 days ago

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DEV Community · Technology

Your coding agent can't see the video it just made

I spent a week letting an agent produce short video clips end to end. It reported success on every run. Roughly one in five was broken. Not subtly broken. One had a two-second frozen frame in the middle. One had narration drifting a full second off picture by the end. Two had audible clicks at ever...

xiaodong Zhang 2 days ago

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DEV Community · Technology

How and why you learn code has completely shifted

The content is written by Gemini but I want to share for everyone to know Should We learn code in AI era? The single most important skill for a software engineer in the AI era is System Architecture & Problem Decomposition—shifting your role from a code writer to a technical director and review...

Taki 2 days ago

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DEV Community · Technology

Building Distributed Systems in Elixir: Part 7 — Worker Pool

In the previous part of this series, we explored named processes. We saw how registering a process under an atom like :worker provided a stable public handle, separating a service's logical address from the temporary PID of its current process incarnation. However, a single registered local proces...

krishnadaspc 2 days ago

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