Design Lint (Quick Check)
When to Use
Use this skill when you need quick automated lint — detects common design system violations in seconds.
When NOT to use
- For deeper review of design judgment (composition, hierarchy, rhythm) → use
/ss-review - For accessibility specifically → use
/ss-a11y - For Nielsen UX heuristics → use
/ss-audit - For applying refactors — this only flags violations; use
/ss-reviewto fix
Target: $ARGUMENTS
What This Does
Fast, grep-based scan for common design violations. Runs in seconds (unlike /ss-review which is a deep manual audit). Run this after every file change.
Checks
1. Hardcoded Colors
Search for hex colors in className strings that should be semantic tokens:
grep -n '#[0-9a-fA-F]\{3,8\}' [file] | grep -v 'theme.css\|tokens\|\.json'
Violation: text-[#3C3C3C], bg-[#721FE5]
Fix: text-text-primary, bg-brand
2. Raw Pixel Values in Tailwind
grep -n 'p-\[.*px\]\|m-\[.*px\]\|gap-\[.*px\]' [file]
Violation: p-[24px], gap-[12px]
Fix: p-6, gap-3
3. Old Width/Height Syntax
grep -n 'w-[0-9] h-[0-9]\|w-\[.*\] h-\[' [file]
Violation: w-4 h-4
Fix: size-4
4. Physical Properties (LTR-only)
grep -n ' ml-\| mr-\| pl-\| pr-' [file]
Violation: ml-2, mr-4
Fix: ms-2, me-4
5. Forbidden Colors
grep -n 'text-black\|bg-black\|#000000\|#000"' [file]
Violation: Any pure black
Fix: Use skin's text-primary token
6. Missing data-slot
grep -n 'function [A-Z]' [file] # find components
grep -n 'data-slot' [file] # check if present
Violation: Component without data-slot
Fix: Add data-slot="component-name"
7. Font Size CSS Variables (CRITICAL — Tailwind v4 conflict)
grep -n 'text-\[var(--' [file]
grep -n '\-\-text-.*px\|--fs-.*px' [file]
Violation: text-[var(--text-sm)] or --text-sm: 13px in theme.css
Fix: Use explicit text-[13px]. CSS variable font sizes conflict with Tailwind v4's --text-* namespace — Tailwind reads them as color, not font-size.
8. className Without cn()
grep -n 'className={`' [file]
Violation: Template literal className
Fix: Use cn() for all className composition
Output Format
🔴 FAIL [file:line] Hardcoded hex: text-[#3C3C3C] → use text-text-primary
🔴 FAIL [file:line] Raw px: p-[24px] → use p-6
🟡 WARN [file:line] Physical prop: ml-2 → use ms-2
🟡 WARN [file:line] Missing data-slot on MyComponent
🟢 PASS No violations found
Total: X errors, Y warnings
If errors > 0, list specific fixes for each violation.
Limitations
- Use this skill only when the task clearly matches its upstream source and local project context.
- Verify commands, generated code, dependencies, credentials, and external service behavior before applying changes.
- Do not treat examples as a substitute for environment-specific tests, security review, or user approval for destructive or costly actions.
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