# Endor UI examples

[hello.endor](hello.endor) returns a native UI tree using an ordinary helper
function and `main`. It covers text, a rounded rectangle, row/column layout and
spacing. Submit it as the UTF-8 body of a namespace PUT request; no namespace,
scene, render block or imports belong in the source.

The live `/agent` guide embeds this exact example. Remote CI executes it through
Aster and checks the resulting coordinates and source ranges after VM cleanup.
The file is client-side sample material; Tessera's API stores source by namespace.

Return to the [project guide](../README.md).