core practice · system design prompt
Design exercise: Spatial Interfaces
Coordinate systems, anchors, tracking, depth, occlusion, hand/eye input, world understanding, and spatial UI. Implement designOutline() returning non-empty values for: coordinateSystem, tracking, spatialInteraction. Each value must name a concrete mechanism or decision.
The mechanism
Spatial interfaces place persistent state in a changing coordinate system. Tracking confidence, scale, depth, occlusion, ergonomics, and recovery from lost anchors are core.
Expected evidence
A design outline with coordinateSystem, tracking, spatialInteraction plus an explicit failure mode or trade-off.
Try this drill in the practice workspace →
Hints when you need them
- Name the failure mode before selecting the mechanism.