Full-stack web developer
If you re using Svelte with coding assistants, you know that these assistants aren t always aware of the latest features in Svelte 5 and SvelteKit. They ll suggest outdated patterns, mix up the old reactive syntax with the new runes system, or simply hallucinate syntax that doesn t exist. These problems have made LLM assistants less useful in Svelte and SvelteKit projects so I decided to set out…
I ve been using Claude Code for a while now, and one thing that always bugged me was not knowing when it finished running a long task. You ask Claude to refactor a large codebase or generate a bunch of tests, then you switch to another window to check Slack, Discord or get up to date on Hacker News. Twenty minutes later you realize you forgot to check if Claude finished! Anthropic recently…
I ve been building static single page apps using adapter-static for a while now, and I love how simple the deployment story is just upload a folder of files and you re done! If you are unfamiliar with this adapter, it compiles down your app to a folder of HTML, CSS and JavaScript files. A couple of months ago, the SvelteKit maintainers added two features that really caught my attention. They were…
If you re working on web applications today, you might have heard that re-renders are bad for performance. But why is that exactly? And more importantly how can we spot these performance issues in our Svelte and SvelteKit applications? In this post, I ll introduce you to svelte-render-scan, a visual debugging tool I created that helps you see exactly when and where your Svelte components are…
If you re a programmer, you re likely already using AI and large language models in your workflow. For some time now, Claude Sonnet has been the undisputed king of models used for programming. It has earned the top spot in multiple code-focused benchmarks, such as the Aider LLM leaderboard and LiveBench. But that dominance might be changing. Google s Gemini 2.5 Pro has quickly overtaken the top…
After using LLMs like ChatGPT, Claude and Gemini for coding assistance, I ve noticed a significant improvement in their capabilities over the past two years. However, getting consistently good results can still be a tricky process. Here are five key tips I ve learned for getting better code from AI models. Include Your Entire Codebase The first and most impactful tip is to provide the AI with your…
The amount of JavaScript you ship to your users directly impacts your site s performance. A smaller bundle size means faster initial loading times and an overall snappier experience for end users. In this post, I ll show you how to analyze your SvelteKit bundle size and optimize it by moving heavy dependencies to the server. Analyzing Bundle Sizes Before we start, let s set up a tool to visualize…
With the release of Svelte 5 and its new runes syntax, many developers are wondering how to get reliable AI assistance that understands the latest features in Svelte 5 working with ChatGPT, Claude, Continue, Cursor and other tools. Looking for smaller, distilled LLM presets? Click here! The challenge with AI and new frameworks When a new major framework version is released, AI tools often struggle…
Streaming in SvelteKit is a powerful feature that allows you to load data progressively. In a nutshell, streaming allows your SvelteKit app to send an initial content response to the browser quickly, while fetching and sending additional data as it becomes available. This can make your app feel more responsive, especially when dealing with slow data sources. While streaming data loads you can…
If you ve been following AI news lately, you might have heard about the strawberry test . It s a simple question that stumps many AI models: How many R s are in the word strawberry ? This seemingly easy task highlights some interesting limitations in large language models (LLMs). Prefer a video version of this blog post? Watch below: Why is counting so hard for LLMs? To understand why this simple…