# @wrnexus/language-server Editor-neutral Language Server Protocol support for `.wrn` files. It uses the canonical `@wrnexus/syntax` parser, diagnostics, accessibility rules, and formatter. ```bash bunx wrnexus-language-server --stdio ``` Capabilities include syntax, accessibility and TypeScript expression diagnostics, formatting, completion, hover, document symbols, go-to-definition, references, rename, and quick fixes. The custom `wrnexus/virtualDocument` request returns the mapped TypeScript representation of an open `.wrn` document for editor TypeScript plugins and safe refactoring tools. Any LSP 3.x client can launch the stdio command. Example Neovim configuration: ```lua vim.lsp.start({ name = "wrnexus", cmd = { "bunx", "wrnexus-language-server", "--stdio" }, root_dir = vim.fs.root(0, { "wrnexus.config.ts", "package.json", ".git" }), }) ``` JetBrains users can register the same command through an LSP client/plugin. The server does not require VS Code and never reads environment secrets or sends source over a network.