Skill: Migrate / Interop Design System
Bridge to or from external design systems via a role-based crosswalk.
Steps
- Read
design-systems/interop-protocol.md(Crosswalk Method, the three directions, headless-vs-styled guidance, verification). - Use the curated tables in
design-systems/crosswalk.mdfor Material 3 / Apple HIG / Fluent 2 / Carbon / shadcn/ui / Radix. For others, derive a mapping with the Crosswalk Method (map by role/intent across 6 axes: color roles, type scale, spacing unit, radius, elevation, motion). - Choose the direction:
- FROM external → our tokens (adopt their look): re-point
semantic.*. - TO external stack (our components on their foundation): theme their primitives with our tokens.
- Migrate: Audit → Map → Bridge (alias layer) → Verify, screen by screen.
- FROM external → our tokens (adopt their look): re-point
- Verify every mapped color pair for contrast (
scripts/contrast.py/a11y-audit); confirm all 8 states + dark mode survive the mapping.
Output
A crosswalk table (our token → their token → value note), a bridge plan if migrating, and verified token overrides. Render via design-code.