SceneIndex | Semantic spatial browser

Demo scene

Harbour Junction Station

Entity Route Weak evidence

Loading Gaussian splats… Drag to orbit · scroll to zoom · click a semantic proxy

30-second proof

Run the complete judged path in the page, or give the same task to an agent through Site Tools.

Find an accessible route from Entrance A to Platform 2. Close Lift 1, reroute, inspect weak evidence, then undo the outage.

Ready. Every step will appear in the shared tool timeline.

Semantic search

Shared scene state

The Gaussian-splat scene and the semantic graph share one camera, selection, route, quality overlay, and reversible scenario state.

Deterministic fallback

These are the same tools registered through WebMCP when the browser exposes document.modelContext.

Tool Arguments

Run a tool to inspect its structured result.

Observable agent actions