Agent Guardrails, EF Core and API Performance

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

Goat Review - Cyril Canovas

You let a coding agent loose on a repository. It reads what it needs, then writes — a file two directories up, a ~/.config it had no business in, a /tmp script it runs next. When you look at how, the ...

Topics: GitHub Copilot Security

How I Built a Programming Language in C#: HydraScript

Medium - StepOne

Most backend developers spend more time moving JSON than designing languages. I wanted a project that forced me below the framework layer…

Topics: C#

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

Milan's .NET Weekly - [email protected] (Milan Jovanović)

I paid $120 a year for a transcription tool until a coding agent helped me get my own version running in under an hour.

Topics: C#

VS Code Learn: Extending Agents

YouTube - Visual Studio Code

Checkout key aspects of AI Agents with Tools, Tool sets, Permissions and Sandboxing. We'll also look at MCP (Model Context Protocol) and how to use it to connect your agents to external data sources. ...

Topics: GitHub Copilot Security

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

Microsoft Dev Blogs - Sinem Akinci

C++ repositories can contain millions of lines of code spread across deeply connected source files and headers. Without a reusable index, navigating to definitions, finding references, or searching fo...

Topics: GitHub Copilot

Debugging walkthrough: Access violation on nonsense instruction, episode 3

Microsoft Dev Blogs - Raymond Chen

A customer reported that their employees were randomly getting "memory write errors". This was their way of interpreting the error message

Topics: Performance

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

Medium - ENTANGO

The easy part of handling a PDF in an AI memory pipeline is opening the file. The hard part is getting text an LLM can actually reason…

Topics: C# OpenAI

How EF Core Change Tracking Works

Medium - Martin Bernaola Mendez

SaveChanges() isn't magic. EF Core keeps a snapshot of every tracked entity, compares it with the current values, and turns each entity's…

Topics: EF Core

Claude Code Remote Control Server

Rockford Lhotka's Blog

In my last post I talked about using SSH to run Claude Code on one of my desktop machines while I’m traveling with my laptop. It works, but it has problems. The biggest one is that disconnecting kills...

Topics: GitHub Copilot

You Don’t Need a Container to Do Dependency Injection

Medium - Rodrigo Cristiano Oliveira

Part 5 of a series where I document what I’m studying to go from mid-level to senior .NET developer.

Topics: Design Patterns

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

Microsoft Dev Blogs - Linda Li

Agents are rapidly evolving beyond chat. The first generation of agents waited for a person to send a message. Today, organizations want agents that can monitor work, respond to business events, and c...

Topics: Azure OpenAI

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

Medium - Bhaskar Soman

When I started learning Entity Framework Core, I initially thought the main problem was understanding how to map C# classes to database…

Topics: EF Core

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

Medium - Andres Gutierrez

Topics: Performance

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

codewithmukesh

30 scenario-based .NET system design interview questions with senior answers, red flags, and follow-ups. Caching, background jobs, real-time, scale on .NET 10.

Topics: Design Patterns .NET 10

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

Medium - Chaudhariparesh

Calling an LLM from a .NET application is easy.

Topics: C# OpenAI

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

Medium - Satyam Pushkar

In modern .NET development, we often rely on the Garbage Collector (GC) to clean up unused memory automatically. At the same time, we rely…

Topics: Design Patterns Performance

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

Medium - Converge Solution

Your ASP.NET Core API is slow.

Topics: ASP.NET Core Performance Web API

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

Microsoft Dev Blogs - Theo van Kraay

AI coding agents can write much of an application's code, but developers still need to review the decisions behind it. For a Cosmos DB application, that includes choosing partition keys, modeling acce...

Topics: Cosmos DB GitHub

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

Medium - Ali Süleyman TOPUZ

Five write-ups, one week, and the patterns that kept showing up when the hype was stripped out

Topics: C# OpenAI

JEV Is Disrupting the Boring Part of AI Agents.

Medium - Vikash Jha

Not a profitable trading bot. Not high-frequency trading. A small experiment in what happens when an AI is allowed to decide — but not…

Topics: OpenAI