Editor setup

Vertex ships with a language server (LSP). Any editor that speaks LSP can use it for real-time diagnostics, completions, hover, and go-to-definition. The fastest path today is the Zed extension, which wires everything up for you.

Zed (recommended)

Install the Vertex extension from Zed’s extensions pane. It provides:

• Syntax highlighting via the Vertex tree-sitter grammar.
• Real-time diagnostics as you type.
• Completions for keywords, built-in types, stdlib methods, and identifiers in scope.
• Hover and go-to-definition for declarations.

The extension automatically downloads the correct vertex binary for your platform. If you already have vertex on your PATH, it uses that.

Source: vertex-run/zed-vertex.

Other editors

Any editor that can run an LSP server can drive the Vertex LSP. The command to launch it is:

vertex lsp

This reads and writes LSP protocol on stdin/stdout. Exact wiring depends on your editor’s LSP client; the things you will need to configure:

• Language ID: vertex
• File pattern: *.vtx
• Server command: vertex lsp
• Initialization options: none required

For syntax highlighting outside Zed, the tree-sitter grammar lives at vertex-run/tree-sitter-vertex.

Note

Purpose-built extensions for VS Code and JetBrains IDEs are not yet available. If you set one up, we would love to hear about it: open an issue at vertex-run/vertex.

Formatter

A formatter is not yet available. The language uses braces {}, no semicolons, and a 4-space indent as its baseline style; following the examples in the tour and reference will keep you close to idiomatic.

Next

Now that you are set up, start the Language Tour.