Claude Code Added GZIP in 2026. Why Not Brotli?
A developer captured a Claude Code API request that was 594,750 bytes . After GZIP compression, the body was 289,145 bytes . That's about 51% less d…
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DocumentIO — Building a Unified API for 7 Document Formats in C#
DocumentIO — Building a Unified API for 7 Document Formats in C This is part of my series on building the VNML Agent Framework — a 100% local agenti…
NLP with .NET
NLP with .NET A deep-dive walkthrough of Natural Language Processing for .NET developers — covering text classification, sentiment analysis, named e…
How to Structure Production Apps with Vertical Slice Architecture in .NET in 2026
Vertical Slice Architecture (VSA) is one of the most popular ways to structure .NET projects today. It structures an application by features instead…
Before you blame EF Core for a slow API, check this.
"The query is slow" is one of the most common misdiagnoses I see. Often, the query is fine, and the problem lies elsewhere. Next time you hit a slow…
I Built a .NET Solution Analyzer – Free Public Beta
Want to try NSystem Intelligence? I have been working on a .NET Analyzer called NSystem Intelligence for a while now, and I would really appreciate…
Securing a .NET API with JWT Authentication Using Clean Architecture
When building a RESTful API, securing your endpoints is just as important as the business logic itself. While implementing JWT (JSON Web Tokens) in…
Why Agents Need a Knowledge Base: The Gaps an LLM Can't Fill by Itself
When a team starts building an agent, the first version is very often only a model, a system prompt and a few tools, and for a demo that is usually…
A folder of markdown you can actually browse: OKF4net 0.7 and the interactive okf-render
An Open Knowledge Format bundle is a directory of markdown files with YAML frontmatter. That is what makes it good for agents and for code review: a…
AI Agents
AI Agents A deep-dive walkthrough of building AI agents in .NET — covering agent architecture and the control loop, tool calling and function callin…
Understanding Blazor Component State
Understanding Blazor Component State Blazor components can respond to user interactions by updating component state and rendering the UI again. A va…
NuGet and what's behind your dependencies
🇧🇷 Prefere ler em português? Leia aqui . Over the last three days of my 30 Days of .NET , we saw what happens when we run dotnet run , explored the…
wdjk
Building a Browse Membership Plans Page in Blazor with Bootstrap Introduction to Blazor Components Blazor is a web UI framework from Microsoft that…
𝗪𝗵𝗮𝘁 𝘄𝗼𝗿𝗸𝘀 𝗳𝗼𝗿 𝗦𝗶𝗴𝗻𝗮𝗹𝗥 𝗹𝗼𝗰𝗮𝗹𝗹𝘆 𝗰𝗮𝗻 𝗳𝗮𝗶𝗹 𝗶𝗻 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝗶𝗼𝗻.
Here are some things I've learned while taking SignalR web applications from local development to production deployment. ⚡𝗔𝘂𝘁𝗵 𝘄𝗼𝗿𝗸𝘀 𝗱𝗶𝗳𝗳𝗲𝗿𝗲𝗻𝘁𝗹𝘆. Br…
Semantic Kernel
Semantic Kernel A deep-dive walkthrough of Semantic Kernel — Microsoft's open-source, .NET-oriented SDK for building AI applications — covering the…
DevTracr: A Tool to Track Yr Coding Activity and Progress.
I Built DevTracr: A Developer Learning and Activity Tracker How do you keep track of what you're learning, what you're building, and the progress yo…
374 tests went in, 352 came out, and the build was green
The last run had 374 tests. This one had 352. No failures, so the build was green. Twenty-two checks had disappeared. The test host died partway thr…
RAG Retrieval-Augmented Generation
RAG — Retrieval-Augmented Generation A deep-dive walkthrough of Retrieval-Augmented Generation for .NET developers — covering RAG architecture, docu…
Aggregates στο Domain-Driven Design: Πώς και γιατί τα χρησιμοποιούμε σε C# και .NET
"Πλήρης οδηγός για Aggregates και Aggregate Roots στο DDD, με πρακτικά παραδείγματα C#, EF Core, Clean Architecture και Business Rules." tags: dotne…
Embeddings & Vector Search
Embeddings & Vector Search A deep-dive walkthrough of embeddings and vector search — covering what embeddings are and how text embeddings are pr…
Making GnuPG feel native on Windows
Many of us enjoy developing in Linux. But using Linux as our primary operating system is not always an option. For me, that means working on a Windo…
How big is Hello World in C#? From 76 MB down to 0.73 MB
How big is the smallest C# program? It depends almost entirely on how you publish it . Same one line of code, five different dotnet publish commands…
Why LINQ is lazy: IEnumerable and yield in C#, explained by running it
LINQ is lazy: Where and Select don't do anything until you loop over the result. Most people learn that as a rule. But it isn't LINQ magic. It comes…
LLM Application Development
LLM Application Development A deep-dive walkthrough of building applications on top of large language models — covering how LLMs actually work and w…
BOLA in ASP.NET Core: Why Authenticated Users Can Still Read Someone Else's Data
A pentest report came back with a finding rated "high": change the invoiceId in GET /api/invoices/{invoiceId} , and a logged-in user from Tenant A c…
5 C# DateTime bugs that pass every test
Date and time bugs are the worst kind: the code is correct on the day you test it, in the time zone you test it in. Then the clocks change, or a use…
Are exceptions really slow in C#? I threw a million to find out
"Exceptions are slow" gets repeated in every C# code review, usually without a number attached. So I measured it. Five experiments, each run three t…
What async/await really compiles to in C# (and when ValueTask is worth it)
Most of us use async / await every day without knowing what it turns into. That's fine, until you need to answer a question like "should this method…
5 ways Cancel doesn't actually cancel in C#
A user clicks Export , changes their mind, and clicks Cancel . The spinner goes away. On the server, the export keeps running to the end and saves a…
Transient vs Scoped vs Singleton: the DI bug that put Ada's laptop in Bob's cart
Bob opens his shopping cart and finds a laptop he never added. Ada added it, on a different computer, a few minutes earlier. Nothing was hacked. One…