DEV Community • 2026-07-27 07:02

Ship a Custom WordPress Endpoint Without Writing a Plugin

Your JavaScript frontend needs a list of featured products from WordPress. Not the whole REST API surface, not raw post objects with forty fields, just the ten items the homepage carousel shows, shaped the way the frontend wants them. The endpoint is ten minutes of work: query, map, return. The question that eats the rest of the afternoon: where does that code go? Where custom endpoints...

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4m read
DEV Community • 2026-07-27 07:00

My AI agent tried to delete my secrets. It couldn't.

One day, my AI agent tried to delete the secrets of my infra. It wrote the Terraform command. It ran it. Nothing happened. Not because it changed its mind. Because my Terraform only applies through the pipeline, never locally. And because it has no access to do it. That is the best moment in my whole setup. An agent did something dangerous, and it cost nothing. That is the whole idea. Don't bet...

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11m read
DEV Community • 2026-07-27 07:00

What a successful HMAC check tells you about webhook forwarding

With payment webhooks, “almost unchanged” is not unchanged enough. A real payment webhook passed through an intermediary delivery service and still verified at the final handler. Here is what that proves—and what it does not. Recently, a payment webhook in one of my production systems followed this path: Payment provider → Adal Server → Adal CLI → webhook handler The handler verified th...

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4m read
DEV Community • 2026-07-27 06:47

Rethinking the AI Agent Manual Override Queue: Enable Autonomy You Can Trust

Most teams building AI agents treat manual override queues as a last resort, a safety net for when the agent goes off the rails. That view keeps agents locked in read-only mode on anything risky. The real insight is the opposite: a well-designed AI agent manual override queue enables you to trust your agent with high-value actions you would otherwise never automate. An override queue is not a puni...

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13m read
DEV Community • 2026-07-27 06:46

Sequential Testing and the SPRT: How to Stop a Test Early Without Cheating

Sequential Testing and the SPRT: How to Stop a Test Early Without Cheating Meta description: Peeking at a fixed-sample A/B test inflates false positives. Sequential testing lets you check results repeatedly and stop early without cheating. TL;DR Fixed-sample testing assumes you'll wait for a pre-calculated sample size before looking at results. Checking early and stopping the moment ...

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11m read
DEV Community • 2026-07-27 06:46

The Confidence Tier Model: How to Decide When Your Data Isn't Enough

The Confidence Tier Model: How to Decide When Your Data Isn't Enough Meta description: Most testing programs are built for traffic they don't have. Three confidence tiers — proven, directional, speculative — each with its own bet-sizing rule. TL;DR Fixed-sample A/B testing assumes you can wait for statistical significance. Most teams can't — traffic is too thin, or the market is movi...

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8m read
DEV Community • 2026-07-27 06:46

Chain of Thought — why 'think step by step' actually works

📺 Prefer to watch? 90-second YouTube Short · 💬 Telegram Originally published on software-engineer-blog.com. You already know the trick: add "think step by step" to your prompt and the model's answer gets better. Almost nobody explains why — and the real reason has nothing to do with motivation or effort. Mental model: A transformer spends a fixed stack of layers per token, so adding reasoni...

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DEV Community • 2026-07-27 06:44

Regression Isn’t Regularization: A Simple Guide to Understanding Both

Regression and regularization are both important concepts in machine learning and statistics, but they solve different problems. Regression is primarily used to model relationships and make predictions. Regularization is used to improve a model's ability to generalize by controlling its complexity. Regression This is a statistical and machine learning technique used to predict a c...

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5m read
DEV Community • 2026-07-27 06:43

Mi stack de AI coding en 2026: Mejor calidad/precio ahorrativo y competitivo🥳️

No pago $20/mes por Copilot. No tengo un Mac. Uso Linux Mint con un agente open-source, una API que cuesta céntimos y una terminal TUI. Este es mi setup real, lo bueno y lo que no te cuentan. No es postureo. Es pragmatismo. Mira, te voy a ser sincero. Cuando empecé a usar AI para programar probé de todo: Copilot, Cursor, Codeium, Continue... y cada uno tenía algo que no me cerraba. O...

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6m read
A PDF toolkit that never uploads your files, now with batch mode
DEV Community • 2026-07-27 06:43

A PDF toolkit that never uploads your files, now with batch mode

Free Online PDF Converter – Word, HTML, Image & More Tools Free online PDF converter with complete privacy protection. Merge, split, compress, sign, and convert PDFs directly in your browser — plus a free age calculator and scientific calculator. No uploa...

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1m read
Full-stack Pokémon TCG simulator with pack opening, grading, PvP and card auctions
DEV Community • 2026-07-27 06:42

Full-stack Pokémon TCG simulator with pack opening, grading, PvP and card auctions

An ecosystem whose job is to full-fill our dream of opening and collecting pokemon cards, which we all had in our childhood. Instead of just clicking a button to reveal static images, I wanted to recreate the whole experience of getting , collecting and showing off your pokemon cards , i even added live card auctions and card shows and PSA card grading simulator to give the full-on experience whi...

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2m read
DEV Community • 2026-07-27 06:40

Migrating a Rich Text Editor : CKEditor 5 to SynapEditor (with code)

Disclosure: I work on the team behind SynapEditor. 🧩 TL;DR: Moving from CKEditor 5 to SynapEditor is a one-to-one swap in three steps: installation, toolbar config, and content/event APIs. The main reason to consider it is Office document fidelity (Word, PowerPoint, Excel import/export). Full runnable example at the end. Switching rich text editors sounds like a big job, but most of the work i...

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5m read
DEV Community • 2026-07-27 06:40

I built a guard that refused to read the user's tab. Then my own cleanup code closed it.

Three days ago my browser automation tool closed one of my own tabs. Not a tab it had opened — a dashboard I had open in another window, with a page I hadn't finished reading. What makes it worth writing up isn't the bug. It's that the guard designed to prevent exactly this had already fired, correctly, ninety seconds earlier. The guard worked Safari MCP lets an AI agent drive your re...

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6m read
DEV Community • 2026-07-27 06:33

I Built 47 Free Dev Tools That Run Entirely in Your Browser

Every developer has done it — copy-pasted a JWT, a private key, or a JSON blob with sensitive data into some random website and held their breath. Wondering if it was being logged, tracked, or worse. Every developer has done it — copy-pasted a JWT, a private key, or a JSON blob with sensitive data into some random website and held their breath. Wondering if it was being logged, tracked, or worse....

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2m read
DEV Community • 2026-07-27 06:33

I audited 78 API requests on my own gateway. One of them used 1,086 input tokens and returned 2 tokens. Token waste is real.

I built a small API gateway for Chinese AI models (DeepSeek, etc.) and decided to audit my own token usage. Nothing fancy — just 78 test requests. What I found: 76 successful calls → 13,103 tokens total (avg ~172 per call) 2 calls failed → invalid model name (no cost, but indicates misconfiguration) Worst case: 1,086 input tokens → 2 output tokens. Yes, someone pasted a massive document and go...

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1m read
DEV Community • 2026-07-27 06:32

How to Create a Dynamic Role & Permission System in Laravel (Without Hardcoding)

When building web applications, basic authentication is rarely enough. Whether you're working on a multi-tenant SaaS, an admin portal, or an enterprise dashboard, you'll inevitably hit a point where you need Role-Based Access Control (RBAC). Many developers start by hardcoding checks into their controllers or views: php if ($user->role === 'admin') { // allow access } While this work...

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3m read
Newest questions tagged css - Stack Overflow • 2026-07-27 06:26

Vite + Web Component + CSS @import = bad MIME type?

I'm fairly new to Vite, and I may have missed something explaining this. My project is set up like this: |- website |- index.html |- src |- index.js |- style.css |- components |- shared-styles |- shared.css |- test-component |- index.html |- index.js |- style.css It's all vanilla, and I'm not currently using a vite.config.js file, though...

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Newest questions tagged css - Stack Overflow • 2026-07-27 06:26

Bad MIME type for CSS @import

My project is set up like this: |- website |- index.html |- src |- index.js |- style.css |- components |- shared-styles |- shared.css |- test-component |- index.html |- index.js |- style.css It's all vanilla, and I'm not currently using a vite.config.js file. The issue centers on shared.css, which contains a few classes that will be shar...

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1m read
Product Hunt — The best new products, every day • 2026-07-27 06:25

HeyZoku

Orchestrate an army of coding agents with your voice. Discussion | Link

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1m read
DEV Community • 2026-07-27 06:23

How we built WaterShortcut

Your water bill doubled. The utility's website shows you a PDF and a phone number. That's the whole support experience for most of North America. WaterShortcut is a small tool that answers one question — why did this bill change? — and ranks what to do about it. Upload the bill or type in four numbers, and you get a plain-English diagnosis: usage really did go up, the rate changed, sewer is being...

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5m read
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