Editor support

This guide shows you how to get syntax highlighting, snippets, and API types for Cow files in your editor.

The npm package includes an optional local extension at node_modules/@cowlang/cow/editor/vscode/. It provides highlighting, snippets, and basic page API suggestions for Cow files. Follow its included README for local setup.

Note: Installing Cow does not install the extension in VS Code.

<?ts
import type { CowRequest } from 'cow:runtime'

export function nameFrom(req: CowRequest): string {
  return req.get('name') || 'friend'
}

Declarations are included for the runtime, web, SQLite, resource, and CSV APIs. A type import describes a value. It does not create page globals in a helper.

Cow’s editor support is not a full template language server. Standalone TypeScript does not parse tagged Cow files. cow check checks syntax, not types or import resolution.