A website needs to look good on phones, tablets, and large monitors. This tool tests how a website's layout changes as the screen size gets bigger or smaller.
It uses browser automation to resize the viewport through many widths. It takes screenshots and checks for layout problems like text overflow, navigation switches, or broken columns.
The result is a detailed report that shows exactly where your design breaks. Use it to fix responsive issues before users see them.
Global
mkdir -p ~/.claude/skills/responsiveness-checkProject
mkdir -p .claude/skills/responsiveness-checkSource Repository
Frontend Designanthropics/skills
Create striking frontend interfaces with bold design and polished code every time
Vercel React Best Practicesvercel-labs/agent-skills
Optimize React and Next.js apps using proven Vercel performance guidelines
Vercel Composition Patternsvercel-labs/agent-skills
Clean React components with composition instead of boolean props
Shadcnshadcn/ui
Manage shadcn UI components easily with CLI commands and clear styling rules
Design Taste Frontendleonxlnx/taste-skill
Enforce premium frontend design with metric-based rules and smart component architecture
Impeccablepbakaus/impeccable
Polish your frontend interfaces with expert design critique and code
Minimalist Uileonxlnx/taste-skill
Build warm minimal web interfaces with editorial typography and flat bento grids
Industrial Brutalist Uileonxlnx/taste-skill
Raw mechanical UIs fusing Swiss print with military terminal aesthetics and high data density