cursor-plugin-shadcn-rule-registry-bases-parity

name	cursor-plugin-shadcn-rule-registry-bases-parity
description	Keep registry base and radix trees in sync when editing shared UI
metadata	{"version":"0.1.0"}

Registry bases: Base UI ↔ Radix parity

apps/v4/registry/bases/base and apps/v4/registry/bases/radix are parallel registries. Anything that exists in both trees for the same purpose (preview blocks, mirrored examples, shared card layouts, etc.) must stay in sync.

When editing

• If you change a file under bases/base/..., apply the same behavioral and visual change to the matching path under bases/radix/... (and the reverse).
• Only diverge where APIs differ (e.g. import paths like @/registry/bases/base/ui/* vs @/registry/bases/radix/ui/*, or Base UI vs Radix component props).
• Do not update only one side unless the user explicitly asks for a single-base change.

Typical mirrored paths

• blocks/preview/** — preview cards and blocks
• Parallel ui/* components when both exist for the same component

After edits, briefly confirm both trees were updated (or state why one side is intentionally unchanged).