bbajt/csharp-code-map ? reverse-engineered prompt

Build me a .NET 10 MCP server for navigating C# codebases with Roslyn, and make it work for VB.NET and F# too if possible.

I want it to take a solution file, build a persistent semantic index, and let an AI agent ask things like, what symbols exist, who calls this method, where is this class referenced, and what does the architecture look like, like endpoints, DI registrations, config keys, middleware, and database tables. It should be fast enough to use on real projects without dumping whole source files into context.

Please also make it easy to install and run from Claude Code, with a simple CLI and a way to register it as an MCP server. If you need to check current docs or best practices for Roslyn, MCP, or .NET 10, look them up online first.