AUP Web-only widget — not a cross-device primitive; not a Web Device layout component.
The name is registered in AUP_WIDGETS (packages/aup/src/aup-types.ts). It can be accepted by structure verification and implemented by a Web runtime (or native target where noted). It is not one of the 18 cross-device AUP_PRIMITIVES, does not enter DeviceCaps.primitives via fillPrimitives, and is not a Web Device theme/site layout component (for example content-card or page-breadcrumb).
Purpose
xterm.js WebSocket terminal widget with its own endpoint protocol — independent of the AUP session protocol.
Boundaries
- Do not document this type as a portable primitive.
- Do not mix it with Web Device layout-component reference pages under
widgets/. - A parser-accepted name is not a portability or product-readiness claim.
Author entry
AUP type: "terminal" with props.endpoint (and optional rows/font). Requires live connection.
Surfaces
Interactive Web only. Snapshot mode shows a placeholder.
Fallback
Missing endpoint → placeholder. No shared degradation chain. Trust/endpoint review required.
Evidence
| Source | Path |
|---|---|
| Registration | packages/aup/src/aup-types.ts |
| Registry | providers/runtime/ui/src/aup-registry.ts (terminal) |
| Renderer | providers/runtime/ui/src/web-page/renderers/terminal.ts |
| Interactive switch | providers/runtime/ui/src/web-page/core.ts case "terminal"`` |
| Related | frames-bridges-embedded-surfaces (terminal boundary note) |
Paths are relative to the Arc repository checkout used for this documentation baseline.
Sample
Not docs-safe. Side effects, write paths, native-only surfaces, or trust-sensitive endpoints make a public sample inappropriate. Keep this page as a boundary and evidence index.
Related
- Widgets hub — navigation only
- Primitive taxonomy — 18 vs 42 boundary
- Custom primitives and Web widgets
- Internal matrix:
docs/aup/capability-matrix.md