Unless I did something wrong with my setup the elixir LS is kind of lackluster compared to a full IDE. It doesn't have any automatic refactoring (even variable renaming) nor does it provide automatic detection of syntax errors. It's pretty much just symbol lookup and some autocomplete functionality.
ElixirLS dev here. We are open for community contributions
I'll quote myself here:
> I do agree that automated refactoring would be an amazing productivity improvement.
https://github.com/elixir-lsp/elixir-ls
I do agree that automated refactoring would be an amazing productivity improvement.