The design-md skill documented the Apr 2026 (0.1.x) CLI behavior, which
has since drifted:
- Lint rules: the skill listed 7 rules that no longer exist by those
names (duplicate-section, invalid-color, wcag-contrast,
unknown-component-property); the 0.3.0 linter runs 9 rules
(contrast-ratio, orphaned-tokens, missing-primary, missing-typography,
section-order, unknown-key, token-summary, missing-sections,
broken-ref). Verified against live lint output.
- Colors: any CSS color is now valid (oklch/rgb/named), not hex-only.
- Export: json-tailwind (v3) + css-tailwind (Tailwind v4 @theme CSS)
formats; 'tailwind' is a back-compat alias. New exit-code semantics
(export exits 0 regardless of source lint findings).
- Section order / duplicate headings are lint warnings, not file
rejection (verified: duplicate + out-of-order sections exit 0).
- Windows: documented the designmd dot-free bin alias (the design.md
bin name collides with the .md file association); skill declares
platforms: [windows].
- New pitfall: typography sub-property typos (fontwight) are silently
dropped with no finding as of 0.3.0.
All claims verified by running @google/design.md 0.3.0 live (lint,
export, duplicate-section, oklch token, starter template lints clean).
Docs page regenerated via generate-skill-docs.py.
cae5c81956