How to Build a $5/Month AI Agent That No Company Can Ban
Level Up Coding - Medium • 2026-04-20 16:06

How to Build a $5/Month AI Agent That No Company Can Ban

Anthropic just cut off OpenClaw and banned its creator. Here’s the 3-step local stack that gives you a self-improving agent for $5/month…Continue reading on Level Up Coding »

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Make HTML 5 Games — Physics Game Tutorial
Level Up Coding - Medium • 2026-04-20 16:06

Make HTML 5 Games — Physics Game Tutorial

In this tutorial and matching video tutorial, we will go through the steps to code a physics game using the HTML 5 Canvas and JavaScript.Continue reading on Level Up Coding »

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If They Ghost You After the Take-Home, Do This
Level Up Coding - Medium • 2026-04-20 16:06

If They Ghost You After the Take-Home, Do This

The code they never reviewed ended up being a playground to try new concepts and getting me a contract at a different company.Continue reading on Level Up Coding »

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Keeping Clean Data in the CPU and Disk
Level Up Coding - Medium • 2026-04-20 16:06

Keeping Clean Data in the CPU and Disk

“Data dominates. (...) Data structures, not algorithms, are central to programming” — Rob PikeContinue reading on Level Up Coding »

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From the Dialectic Prompt to Agent Brain Trust
Level Up Coding - Medium • 2026-04-20 16:06

From the Dialectic Prompt to Agent Brain Trust

Real people, plausible settings, and a protocol that refuses to skip the useful stepsIf you want an AI to think with you instead of flattering you, give it a room with friction. In The Dialectic Prompt, I argued for a debate, which consists of real and named figures whose positions tension against one another in good faith, then anchored that debate in a plausible situation so the model stays in t...

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AI-Approved Waste: What a Second Pass on an AI-Built Extension Actually Caught
Level Up Coding - Medium • 2026-04-20 16:06

AI-Approved Waste: What a Second Pass on an AI-Built Extension Actually Caught

A case study of broken code, wider-than-needed permissions, and 15 KB of dead weight that survived an AI agent’s first pass.Continue reading on Level Up Coding »

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The Only Hermes Agent Setup You Need For Your Remote Machine
Level Up Coding - Medium • 2026-04-20 16:05

The Only Hermes Agent Setup You Need For Your Remote Machine

Set up your VPS, connect your devices safely, integrate your IDE, optimize your repository, and control the Hermes Agent from your phone.Continue reading on Level Up Coding »

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Design UI with AI (Vibe Design) Using Google Stitch for Free
Level Up Coding - Medium • 2026-04-20 16:05

Design UI with AI (Vibe Design) Using Google Stitch for Free

Key highlights, features, and how AI is changing UI/UX designContinue reading on Level Up Coding »

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Anthropic’s Agent Stack: The Mental Model That Took Me a While to Build
Level Up Coding - Medium • 2026-04-20 16:05

Anthropic’s Agent Stack: The Mental Model That Took Me a While to Build

https://medium.com/media/093e12f4e4b20741a1d92fb748e9b593/hrefWhy this was confusingAnthropic’s developer platform currently offers three surfaces for building agents: the Messages API, the Agent SDK, and Managed Agents. Each has its own documentation, its own quickstart, its own framing. Read them individually and they make sense. Read them together and the relationship between them gets murky.Wh...

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The Go Error That Looked Like a Timeout But Wasn’t — And Why We Retried All Three
Level Up Coding - Medium • 2026-04-20 16:05

The Go Error That Looked Like a Timeout But Wasn’t — And Why We Retried All Three

context.DeadlineExceeded, context.Canceled, and net.Error walk into a production incident. Only one was a timeout. We retried all three…Continue reading on Level Up Coding »

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DEV Community • 2026-04-20 16:05

Building StreamTrack: My Intent-Driven Development Journey for PromptWars Virtual 🚀

As media consumption grows, keeping track of what to watch, what we’re currently watching, and what we’ve finished across dozens of platforms has become a chaotic experience. For the PromptWars: Virtual Challenge, I decided to solve this personal pain point by building StreamTrack—a unified multimedia tracker for web series and movies. But this hackathon wasn't just about building an app; it was ...

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DEV Community • 2026-04-20 16:05

The Vercel Breach Shows the New Shape of Supply-Chain Attacks in 2026

Intro The Vercel incident wasn't a platform exploit. It was something more modern—and more dangerous. Attackers didn't break Vercel. They broke a third-party AI tool, inherited an OAuth token, and rode that trust boundary straight into internal systems. This is the 2026 supply-chain pattern: the weakest link is no longer your code—it's your integrations. Incident response guides are...

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Hacker News • 2026-04-20 16:03

Show HN: Einlang, a math-intuitive language with lots of good stuff

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Lobsters • 2026-04-20 16:02

PyTexas 2026 Recap

PyTexas 2026 ran April 17–19 in Austin. Friday was tutorials, Saturday and Sunday were talks with two keynotes and two lightning-talk blocks. A few themes kept coming back across unrelated talks: Sovereignty. The word came up in two different keynotes. Hynek Schlawack: “the domain model must be sovereign”. Design it first, translate at the edges. Dawn Wages: “sovereignty over your stack” as one of...

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DEV Community • 2026-04-20 16:01

How to Add Claim Verification to Your LangChain Agent in 5 Minutes

Your LangChain agent is wrong about 10% of the time. Not occasionally — consistently, confidently, and silently. The problem isn't the model. It's that your agent has no way to know when it's wrong. It receives information, formats a response, and acts. No second opinion. No fact-check. No circuit breaker. This tutorial shows you how to add a verification layer in 5 minutes that catches hallucin...

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Serverless by Design - Building an Analytics Platform on Cloudflare
DEV Community • 2026-04-20 15:58

Serverless by Design - Building an Analytics Platform on Cloudflare

In 2023, I published a blog post titled My journey to the world of social networks, where I shared my personal experience publishing news updates, blog posts, and basically any kind of technical knowledge through social networks. There was something I always wanted to know – what is my current exposure in terms of the number of likes or views of my posts? I know there are paid analytical services ...

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DEV Community • 2026-04-20 15:57

The Cold Start Problem in Agent Economies

The Cold Start Problem in Agent Economies Every new agent faces the same paradox: to be trusted, it needs a track record. But to build a track record, it needs to be trusted enough to operate. This is the cold start problem — and it's quietly becoming the defining bottleneck in the emerging agent economy. The Paradox Imagine launching an AI agent into a marketplace. The firs...

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Under Pressure. Better Harness.
DEV Community • 2026-04-20 15:57

Under Pressure. Better Harness.

Hey everyone this is not a typical constructed llm copied and pasted post. i built a reasoning tool for AI agents, applicable to any agentic framework and with all ai models capable of tool calling. The tool is a Post Http Request where the agents sends the description of the task and the mode.... [( coding ; reasoning; anti-deception; memory) (the skill files teach the agent to act autonomous...

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My load balancer worked. That's what made me uncomfortable.
DEV Community • 2026-04-20 15:57

My load balancer worked. That's what made me uncomfortable.

I didn't expect a load balancer to make me uncomfortable. But here we are. I built one in Go for my MSc case study. Round-robin distribution, health checks, mutex for concurrency, timeout handling. It worked. Requests going in, responses coming out, servers behaving exactly as they should. I should have felt good about it. Instead I felt uneasy. I kept staring at http.Get() thinking — I have ...

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Hacker News • 2026-04-20 15:54

Show HN: Tmux-bar – One-tap switching between windows in current tmux session

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