explorer is an AUP cross-device primitive, not a Web Device layout component and not a Web-only widget. It is one of the 18 names in AUP_PRIMITIVES and appears in every target's DeviceCaps.primitives map as native, webview, partial, or unsupported.
Contract
| Field | Value |
|---|---|
| Primitive name | explorer |
| Layer | AUP cross-device primitive (AUP_PRIMITIVES) |
| Public status | unsupported (document) |
| Document capability | unsupported |
| Shared degradation chain | No shared chain (pass-through / unknown handling) |
| Author entry | AUP composition (often afs-list + widgets) on interactive targets |
| Document renderer / notes | Document RENDERERS: none for explorer; Showcase composes primitives/widgets |
| Showcase evidence | blocklets/showcase-dsl/.aup/pages/explorer.aup |
When to use
IDE-style directory browser compositions with declarative select/navigate retargeting.
When not to use
Do not treat explorer as a single layout component. Document has no native explorer renderer.
Document sample
Not provided. Document capability is unsupported. Explorer demos are multi-node compositions (see Showcase explorer) and require interactive data paths. Read afs-list for the list half of that composition — still without a closed live data contract on this site.
Evidence anchors
| Item | Value |
|---|---|
| Registry | packages/aup/src/aup-types.ts · AUP_PRIMITIVES |
| Document caps | providers/runtime/web-device/src/device-caps.ts · DEVICE_CAPS_DOCUMENT |
| Degradation | packages/aup/src/degradation.ts · DEGRADATION_CHAINS |
| Internal matrix | docs/aup/capability-matrix.md (internal, non-routed) |
| Taxonomy hub | Primitive taxonomy and evidence |
| Sample contract rules | Live examples: scope and contract |