MandoCode is a .NET CLI agent that reads your project, proposes diffs, and applies changes across files — the full plan-search-edit loop, entirely on your machine. It is built on Semantic Kernel and RazorConsole, which renders a Spectre.Console terminal UI using Razor components and a virtual DOM. The agent is designed around C# and .NET codebases, so the file understanding and diff proposals are tuned for that ecosystem. Web search is available without a key but the vendor states a free Tavily key improves reliability. The ceiling appears when you push outside .NET: community reports on the GitHub page are thin, and the tool's own framing is explicit about its target audience.