Navigation structure & progressive disclosure
Generated from
mcp/patterns.registry.json— do not edit by hand; change the registry and runbun run patterns:build.
Index card — the docs below are the canonical explanation; deep-tier pattern pages additionally carry invariants and emulation notes.
Category: App Shell & Navigation · Tier: light · Risk: low — structural pattern, no external services
Structures nav items as compound split buttons — a primary click zone that navigates and a dropdown zone that progressively reveals subpages or section anchors.
When to use: Reach for it when adding a new top-level navigation item or deciding how its children should be disclosed.
Docs
Code
Machine-readable record: app-shell-navigation in mcp/patterns.registry.json.