git:20260824.db721b3 to git:20261006.5751441

14 added, 4 removed. Audit A to A.

---

name: migrate-design-system

description: Map this token system to or from any external design system (Material Design 3, Apple HIG, Fluent, Carbon, Ant, shadcn/ui, Radix, Chakra, Mantine, Bootstrap…) — adopt their look, build on their stack, or migrate between systems. Use when the user mentions interop, migration, or a specific design-system/component-library bridge.

- invocation: user

+ # `invocation:` was not a field Claude Code reads - unknown frontmatter keys are

+ # ignored without an error, so these six were auto-invocable the whole time they

+ # were marked user-only. This is the field that actually does it.

+ disable-model-invocation: true

---

# Skill: Migrate / Interop Design System

+ > **Step 0 — is the kit here?** This skill reads files from the kit. Check once:

+ > `ls ${CLAUDE_SKILL_DIR}/../../../tokens >/dev/null 2>&1 && echo KIT_OK || echo KIT_MISSING`

+ > On `KIT_MISSING` only the skill folders were installed, which is what

+ > `npx skills add` does. Say so plainly, point the user at

+ > `npx ux-ui-agent-skills init` or the plugin install, and stop. Do not guess the

+ > contents of a file you could not open.

Bridge to or from external design systems via a role-based crosswalk.

## Steps

- 1. Read `design-systems/interop-protocol.md` (Crosswalk Method, the three directions, headless-vs-styled guidance, verification).

- 2. Use the curated tables in `design-systems/crosswalk.md` for 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).

+ 1. Read `${CLAUDE_SKILL_DIR}/../../../design-systems/interop-protocol.md` (Crosswalk Method, the three directions, headless-vs-styled guidance, verification).

+ 2. Use the curated tables in `${CLAUDE_SKILL_DIR}/../../../design-systems/crosswalk.md` for 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).

3. 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.

- 4. **Verify** every mapped color pair for contrast (`scripts/contrast.py` / `a11y-audit`); confirm all 8 states + dark mode survive the mapping.

+ 4. **Verify** every mapped color pair for contrast (`${CLAUDE_SKILL_DIR}/../../../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`.