What is rust-assist?

Rust Assist is a VS Code extension that figures out what kind of Rust project you're working on and suggests the right commands to run, build, and test it. Instead of memorizing framework-specific commands or digging through documentation, you use keyboard shortcuts to get context-aware suggestions and execute them directly. When you trigger a command, the extension looks at your project's dependency file to detect whether you're using a framework like Leptos, Bevy, Tauri, or Rocket, among others. It then suggests the appropriate command for that framework, such as the correct serve or build command. If your cursor is near a specific test function, it identifies that test and suggests running just that one. It can also read Makefiles and offer those targets as suggestions. This is useful for developers working across multiple Rust frameworks who don't want to keep looking up the right commands for each one. For example, someone building a web app with Leptos might need cargo leptos watch, while a game developer using Bevy would need a different setup. The extension handles those differences automatically. It also continues working even if rust-analyzer, the standard Rust language server, crashes. A notable design choice is that the tool's core analysis logic is written in Rust and compiled to WebAssembly, which lets it run efficiently inside VS Code, including in the browser-based version. It deliberately operates independently of other Rust tooling, so it won't break if another tool fails. The README doesn't go into detail on the exact detection rules, but it does allow you to define custom framework detection through configuration if your project isn't in the default list.