Vani SPA Setup

Instructions for the agent to scaffold a basic Vani SPA using explicit updates.

When to Use

Use this when a user needs a new Vani SPA root, a simple component, or a quick demo that mounts to a DOM element.

Steps

1. Create a root component with component that returns a render function.
2. Store local state in variables and call handle.update() from event handlers.
3. Find the root element by id and throw if missing.
4. Mount the component with renderToDOM(App(), root) (arrays also work).

Arguments

• rootId – DOM id of the mount node (defaults to app)
• componentName – name of the root component (defaults to App)
• includeCounter – whether to include a counter example (defaults to true)

Examples

Example 1 usage pattern:

Create a Counter component and mount it to #app with explicit updates.

Example 2 usage pattern:

Create an App component that composes child components and mount it to a custom root id.

Output

Example output:

Created: src/app.ts
Updated: src/main.ts
Notes: Uses handle.update() for all state changes.

Present Results to User

Provide a short explanation of how the root is mounted, list the files touched, and mention where explicit updates occur.