Get the authoritative OpenUI Lang contract before creating a complex Nuwax UI. Use format=guide for syntax, component signatures, and examples; use format=schema for the complete renderer-generated JSON Schema. Use this instead of guessing syntax or searching local package files. Choose dashboard for tables/charts, form for inputs, basic for cards/content, and all only as a fallback.

Create or update a durable OpenUI artifact in the active project. Use this whenever the user asks to show, render, visualize, preview, or build a card, dashboard, chart, table, report, form, status panel, or other structured interface—even if they do not mention OpenUI. The tool writes data/{artifactId}.openui.json and returns a lightweight reference. Reuse artifactId to update an existing UI. OpenUI Lang is assignment-based and is NEVER XML/HTML/JSX: start with root = Stack(...), use positional arguments, and reference every defined variable. For complex UI or uncertain component signatures, call nuwax_get_openui_reference first. Reactive filters must handle empty initial bindings, and dynamic pie/radial charts must guard zero totals. Use inline for compact conversation UI and sidecar only for a full page.