Microsoft Agent Framework vs Semantic Kernel for a Greenfield .NET Agent
For a new .NET agent in 2026, start on Microsoft Agent Framework 1.0. Semantic Kernel is in maintenance mode. Here is the side-by-side and the one case where SK still wins.
Tag: microsoft-agent-framework
4 posts
Microsoft Agent Framework vs LangChain vs LlamaIndex in 2026
All three hit 1.0. Pick Microsoft Agent Framework if you live in Azure and .NET, LangChain/LangGraph for vendor-neutral graph orchestration, LlamaIndex for retrieval-grounded agents.
How to Author a Function Tool in the Microsoft Agent Framework: Inline, Method, or Class
If you came from Semantic Kernel looking for 'skills,' the Microsoft Agent Framework 1.0 calls them function tools and builds every one from AIFunctionFactory.Create. Here are the three ways to author one in C# -- an inline lambda, a named method, or a class of related tools -- plus what the declarative YAML 'file' approach can and cannot do.
Microsoft Agent Framework 1.0: Building AI Agents in Pure C#
Microsoft Agent Framework hits 1.0 with stable APIs, multi-provider connectors, multi-agent orchestration, and A2A/MCP interop. Here is what it looks like in practice on .NET 10.