Top 10 Claude Code Skills, Plugins, & CLIs for DESIGN

Highlights

• Impeccable is a single design skill featuring 18 commands that use anti-patterns to teach large language models to avoid repetitive AI aesthetics like glassmorphism and purple gradients.

• Skill UI reverse engineers existing websites into project-level Claude skills by using Playwright to analyze HTML, scroll interactions, and mouse-over behaviors.

• Awesome Design (awesome-design.md) provides structured design markdown files that break down high-end websites like 11Labs and Bugatti into specific component building blocks.

• The UI UX Pro Max skill utilizes 161 industry-specific reasoning rules to generate design systems based on a service's unique function rather than generic templates.

• 21st.dev offers a repository of copy-paste prompts for advanced UI components, including mouse-following Spline 3D robots and animated glowing shadows for buttons.

• Playwright CLI serves as an automated front-end testing tool that executes headless Chrome instances to verify form submissions and edge-case user interactions at scale.

Timeline

1. 00:00 - 03:04

   Defining AI Slop and the Impeccable Skill

   Claude Code often defaults to a 'B-tier SAS' look because its internal front-end design skill lacks specific domain depth. Impeccable counters this by providing dense references for different design domains, such as the 'Clarify' command for error messages and the 'Adapt' command for cross-platform responsiveness. By showing the model what constitutes a repetitive pattern, it forces the AI to produce more distinct visual outputs.

   • AI Slop is characterized by the repetitive use of Inter font, purple gradients, and standard card layouts across most AI-generated websites.
   • The Impeccable skill includes 18 commands that identify UX errors and define specific anti-patterns for large language models.
   • A dedicated Chrome extension highlights generic AI aesthetics directly on the webpage to assist in visual refinement.
2. 03:05 - 06:13

   Reverse Engineering Design Systems with Skill UI

   Users often struggle to bridge the gap between seeing a design they like and recreating it in code. Skill UI automates this by scraping the structure of a target site and turning those findings into a project-level skill. This allows for the creation of 'style clones' where the AI understands the specific spacing, color theory, and layout logic of professional platforms.

   • Skill UI converts live websites into reusable Claude skills by pointing the tool at a URL and analyzing the underlying architecture.
   • Ultra mode utilizes Playwright to capture sophisticated interactions like scroll effects and mouse-over states that HTML analysis alone misses.
   • One-shot prompting with Skill UI can generate a functional foundation for complex layouts like the Stripe or Notion interfaces.
3. 06:14 - 09:31

   Web GPU Animations and Structured Design Markdown

   Leveling up web design involves moving into high-performance visuals like custom shaders that were previously only found on top-tier agency sites. The Web GPU skill manages the complex setup for renders and shaders, enabling these animations through simple text prompts. Simultaneously, the Awesome Design repository offers a more manual but precise approach by giving users the exact building blocks of sites like Bugatti to use as templates.

   • The Web GPU skill teaches Claude Code to write code for custom shaders and node-based materials that interact directly with the graphics card.
   • Awesome Design provides a library of design.md files containing specific North Star goals, color palettes, and typography rules for top-tier websites.
   • Structured markdown prompts are more effective than generic instructions because they define concrete constraints for buttons, headings, and form elements.
4. 09:32 - 11:47

   Visual Prototyping with Google Stitch

   Coding every visual change is a slow process that hinders creative exploration. Stitch solves this by providing a hands-on visual workspace where users can click through different variants and creative ranges. Once a visual style is confirmed, the design.md file and the corresponding code can be copied into Claude Code to finalize the build.

   • Stitch creates visual mockups and design systems from screenshots or text prompts before any code is written.
   • The platform generates multiple variations of a website's hero section and sub-pages to allow for rapid visual selection.
   • Finalized designs can be exported as code or sent directly to Figma and AI Studio for further development.
5. 11:48 - 15:51

   Industry-Specific Logic and Component Flourishes

   Generic design fails because it treats a medical portal the same as a crypto startup. UI UX Pro Max asks the user questions to determine the site's purpose and applies relevant constraints. To add a premium feel, 21st.dev provides pre-written prompts for high-quality components, such as hero sections using Spline 3D, which can be dropped into Claude Code without manual coding.

   • The UI UX Pro Max skill applies 161 industry-specific rules to ensure a website's design matches its functional domain.
   • 21st.dev acts as a component library where users can copy specific prompts for interactive elements like buttons and cards.
   • Small flourishes like glowing shadows and mouse-following lighting animations elevate a site's perceived quality.
6. 15:52 - 20:11

   Implementing Taste and Automated Testing

   Typography is a primary driver of design identity, and moving beyond the standard 'Inter' font is a low-effort way to differentiate a site. Using the Playwright CLI alongside these design tools ensures that the more complex components actually function as intended. Automated testing through CLI is more effective than the MCP version for high-speed, headless verification of site interactions.

   • The Taste Skill repo uses abstract settings to move AI generation away from standard SAS templates.
   • Google Fonts provides a free repository that Claude can search to find typography that matches a specific brand feeling.
   • Playwright CLI automates the testing of front-end interactions and form submissions to find edge-case errors quickly.