Agent workflows, APIs, and EF Core
Coverage spans VS Code agent workflows, ASP.NET Core file uploads, EF Core migrations, API anti-patterns, async tradeoffs, and CQRS design.
Jasen's top three picks
- 1 Agent-First Development Workflows in VS Code with Brigit Murtaugh
youtube.com
A solid look at agent-first workflows in VS Code, with durable workflow ideas that move beyond toy AI demos.
- 2 How to upload files in an ASP.NET Core Web API
blog.elmah.io
Straightforward, practical ASP.NET Core guidance. File uploads sound simple until validation, storage, and request handling details pile up.
- 3 Announcing Agent Governance Toolkit MCP Extensions for .NET
devblogs.microsoft.com
Worth watching if you’re building MCP-based tooling. Governance, scanning, and response sanitization are timely additions.
Editor's note
I put together another intentionally mixed issue today, because that’s usually where the best practical learning shows up. The VS Code agent workflow session and the new .NET agent governance toolkit both stood out as useful signals for where AI tooling in the .NET stack is heading. I also liked the EF Core migrations piece because it tackles a mistake teams keep repeating until deployment day makes it painfully obvious.
Today's articles
Agent-First Development Workflows in VS Code with Brigit Murtaugh
youtube.com
Durable Workflows in Microsoft Agent Framework: Why Real AI Systems Need More Than Just…
Topics: OpenAI Visual Studio Code
Read articleHow to upload files in an ASP.NET Core Web API
blog.elmah.io
Files are an integrated part of an application. From a social app to an ERP, some form of media exists in the ecosystem. .NET Core APIs provide built-in support for uploading and fetching documents. I...
Topics: ASP.NET Core Web API
Read articleAnnouncing Agent Governance Toolkit MCP Extensions for .NET
devblogs.microsoft.com
Announcing a Public Preview .NET package that adds policy enforcement, startup tool scanning, fallback governance, and response sanitization to MCP servers with a single builder extension. The post A...
Read articleJust shows that nobody cares about debugging the parity flag any more
devblogs.microsoft.com
The x86-64 architecture inherited the parity flag (PF) from the x86-32, which in turn inherited it from the 8080, which inherited it from the 8008, which implemented it because it was the processor fo...
Topics: Performance
Read articleTask vs ValueTask in .NET: What They Are, When to Use Each, and Why It Matters
medium.com
A deep dive into one of async/await’s most misunderstood distinctions — with real .NET examples to make it click.
Topics: Performance
Read articleAzure IaaS: Deploy high-performance workloads with a system-level approach
azure.microsoft.com
Performance in the cloud is no longer defined by individual resources—it’s shaped by how compute, storage, and networking work together. Azure IaaS takes a system-level approach to help organizations ...
Topics: Azure Performance
Read article10 .NET 10 API Anti-Patterns That Break Production (And How to Fix Them)
codewithmukesh.com
10 ASP.NET Core anti-patterns that break production in .NET 10 - async void, sync-over-async, fat controllers, runtime-reflection mappers in AOT, and the 2026 ones.
Topics: AOT ASP.NET Core .NET 10
Read articleEF Core without migrations - it's only a matter of time
roundthecode.com
Learn why EF Core without migrations is a disaster. Learn how to setup, configure, and deploy using migrations to keep databases consistent across environments. The page EF Core without migrations - i...
Topics: EF Core
Read articleI Scaled a .NET App Toward 1M Users — Here’s What Actually Matters
medium.com
When we started, performance wasn’t a priority.
Topics: Performance
Read articleApp crashed in Production
medium.com
This API had been working fine in production for 2 years.
Topics: Performance Web API
Read articleVSA + CQRS without turning into a framework: the shared language your team has been wanting
jean-puga.medium.com
Part four of the series “From Legacy Architecture to a Team That Ships.” In the previous articles, we moved from Clean Architecture to…
Topics: Clean Architecture CQRS
Read article.NET Ketchup - Week 21, 2026
dotnetketchup.com
Catch up on the latest .NET news from week 21, 2026
Topics: .NET 9
Read articleMoving Beyond MediatR: Implementing Cross-Cutting Concerns with Native .NET Dependency Injection
medium.com
For years, the MediatR package has been a default inclusion in almost every new .NET project template. It is frequently hailed as the gold…
Topics: Design Patterns MediatR
Read article