The .NET News Daily Issue #553

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Today's Articles

My coding agent wrote outside the repo. Nothing stopped it.

How I Built a Programming Language in C#: HydraScript

I Replaced a $120/Year SaaS With My Own App

VS Code Learn: Extending Agents

Faster C++ code intelligence for Copilot CLI with Whole Codebase Indexing

Debugging walkthrough: Access violation on nonsense instruction, episode 3

Memory-MCP: Extracting Text from PDFs Without Breaking Reading Order with PdfPig

How EF Core Change Tracking Works

Claude Code Remote Control Server

You Don’t Need a Container to Do Dependency Injection

From Chatbots to Automated Agents: Routines in Microsoft Foundry Are Now Generally Available

What I Learned About EF Core by Building an Enterprise Inventory System

How Kahuna reached 290K requests per second on a Single Node

30 .NET System Design Interview Questions That Actually Get Asked in 2026

Calling LLMs from .NET with IChatClient: From Simple Prompts to Production Architecture

Why Garbage Collection Won’t Save Your .NET App from DI Leaks

Why Is Your ASP.NET Core API Slow? Start With These 10 Checks

Spec-Driven Development comes to Azure Cosmos DB: The First Database Extension for GitHub Spec Kit

.NET + AI in Production: What Actually Works (A Field Survey)

JEV Is Disrupting the Boring Part of AI Agents.