![Weekly Recap: GitHub Copilot CLI, MCP in C#, and Modular Monoliths [July 2026]](https://devleader-d2f9ggbjfpdqcka7.z01.azurefd.net/media/SquareBanner.webp)
This week covers GitHub Copilot CLI workflows and permissions, MCP clients and servers in C#, and practical modular monolith design and testing. Plus, dig into production Roslyn analyzers and engineering leadership lessons on team culture, tech leads, and better questions.
Explore production-quality roslyn analyzer examples in C# -- naming conventions, null guard enforcement, and structured log validators you can adapt today.
Understand Roslyn analyzers vs incremental source generators -- how each hooks into the compilation pipeline and when to combine both in one NuGet package.
Master testing Roslyn analyzers using Microsoft.CodeAnalysis.Testing in C#. Learn NuGet setup, diagnostic markers, code fix testing, and CI integration.
This week covers GitHub Copilot CLI workflows and building Roslyn analyzers in C#. Plus practical guides to modular monoliths, MCP transports, production Serilog, NuGet debugging, AI's impact, and engineering leadership.
Learn when to use IOperation Roslyn vs SyntaxNode vs Symbol APIs. Compare the three analysis layers to pick the right one for your C# analyzer in .NET 10.
Master DiagnosticDescriptor C# configuration -- rule IDs, severity levels, .editorconfig overrides, and diagnostic messages for your Roslyn analyzers.
Learn to package and distribute your roslyn analyzer nuget package with the right folder structure, metadata, versioning, and CI/CD automation in .NET 10.
Build roslyn analyzer c# from scratch -- complete project setup, DiagnosticAnalyzer scaffold, CodeFixProvider implementation, debugging, and unit tests.
Learn what roslyn analyzers are, how they work in the .NET 10 compiler pipeline, why teams build custom diagnostics, and how to write your first rule in C#.
This week covers NuGet packaging from metadata and local testing through private feeds, versioning, and automated publishing. Plus practical guides to monolith architecture, MCP servers and clients in C#, Serilog, Roslyn analyzers, AI agent workflows, and senior engineering leadership.
This week covers building extensible plugin systems in C#, the adapter design pattern in depth, and practical C# source generator testing. Plus new videos on developer burnout, staying sharp after promotion, and whether Copilot CLI is finally replacing Visual Studio.
Learn how to test C# source generators with .NET 10. Complete guide covering Microsoft.CodeAnalysis.Testing, unit tests, snapshot testing with Verify, and CI integration.
This week covers Observer Pattern implementation and best practices in C#, source generator techniques, Factory Method and Composite patterns, and GitHub Copilot SDK multi-agent capabilities. Plus developer career videos on getting credit for your work, advancing past invisible barriers, and navigating strong opinions as a senior dev.
Learn to measure and optimize C# source generator performance in .NET. Covers incremental source generator caching, build-time profiling, and binlog analysis.
Learn C# source generators through 3 real-world examples: auto-generating ToString(), object mapping, and serialization boilerplate in .NET 10.
Learn how C# source generator attributes trigger code generation in .NET. Complete guide to the marker attribute pattern with ForAttributeWithMetadataName.
Master reading and traversing a Roslyn syntax tree in a C# source generator. Learn SyntaxTree, SemanticModel, and ForAttributeWithMetadataName for .NET 6+.
Learn the incremental source generator API in C# -- covers pipeline design, caching with IEquatable, performance tips, and best practices for modern .NET.
Learn how to create a C# source generator with .NET 10. Step-by-step guide covering project setup, IIncrementalGenerator implementation, and packaging.
Learn exactly how C# source generators work inside the Roslyn compilation pipeline. Understand the two-phase compilation model, syntax providers, and incremental execution.
Understand what C# source generators are, their history in .NET, and how they differ from reflection and T4 templates. A clear introduction for .NET developers.
Master C# source generators with this complete guide. Learn how compile-time code generation works in .NET 10, why it beats reflection, and how to get started.
