A design language system with 1 skill, 20 commands, and curated anti-patterns for impeccable frontend design. Enhances AI code generation tools to produce better, non-generic interfaces across typography, color, spatial design, motion, interaction, responsive design, and UX writing.
Add this skill
npx mdskills install pbakaus/impeccableA comprehensive, opinionated design language system that solves a real problem — LLMs generating predictable, recognizable AI slop in frontend design. The multi-provider build system (Cursor, Claude Code, Gemini, Codex) with source-of-truth authoring is genuinely well-architected.
The vocabulary you didn't know you needed. 1 skill, 20 commands, and curated anti-patterns for impeccable frontend design.
Quick start: Visit impeccable.style to download ready-to-use bundles.
Anthropic created frontend-design, a skill that guides Claude toward better UI design. Impeccable builds on that foundation with deeper expertise and more control.
Every LLM learned from the same generic templates. Without guidance, you get the same predictable mistakes: Inter font, purple gradients, cards nested in cards, gray text on colored backgrounds.
Impeccable fights that bias with:
A comprehensive design skill with 7 domain-specific references (view skill):
| Reference | Covers |
|---|---|
| typography | Type systems, font pairing, modular scales, OpenType |
| color-and-contrast | OKLCH, tinted neutrals, dark mode, accessibility |
| spatial-design | Spacing systems, grids, visual hierarchy |
| motion-design | Easing curves, staggering, reduced motion |
| interaction-design | Forms, focus states, loading patterns |
| responsive-design | Mobile-first, fluid design, container queries |
| ux-writing | Button labels, error messages, empty states |
| Command | What it does |
|---|---|
/teach-impeccable | One-time setup: gather design context, save to config |
/audit | Run technical quality checks (a11y, performance, responsive) |
/critique | UX design review: hierarchy, clarity, emotional resonance |
/normalize | Align with design system standards |
/polish | Final pass before shipping |
/distill | Strip to essence |
/clarify | Improve unclear UX copy |
/optimize | Performance improvements |
/harden | Error handling, i18n, edge cases |
/animate | Add purposeful motion |
/colorize | Introduce strategic color |
/bolder | Amplify boring designs |
/quieter | Tone down overly bold designs |
/delight | Add moments of joy |
/extract | Pull into reusable components |
/adapt | Adapt for different devices |
/onboard | Design onboarding flows |
/typeset | Fix font choices, hierarchy, sizing |
/arrange | Fix layout, spacing, visual rhythm |
/overdrive | Add technically extraordinary effects |
The skill includes explicit guidance on what to avoid:
Visit impeccable.style to see before/after case studies of real projects transformed with Impeccable commands.
Visit impeccable.style, download the ZIP for your tool, and extract to your project.
Cursor:
cp -r dist/cursor/.cursor your-project/
Note: Cursor skills require setup:
- Switch to Nightly channel in Cursor Settings → Beta
- Enable Agent Skills in Cursor Settings → Rules
Claude Code:
# Project-specific
cp -r dist/claude-code/.claude your-project/
# Or global (applies to all projects)
cp -r dist/claude-code/.claude/* ~/.claude/
OpenCode:
cp -r dist/opencode/.opencode your-project/
Pi:
cp -r dist/pi/.pi your-project/
Gemini CLI:
cp -r dist/gemini/.gemini your-project/
Note: Gemini CLI skills require setup:
- Install preview version:
npm i -g @google/gemini-cli@preview- Run
/settingsand enable "Skills"- Run
/skills listto verify installation
Codex CLI:
cp -r dist/codex/.codex/* ~/.codex/
Once installed, use commands in your AI harness:
/audit # Find issues
/normalize # Fix inconsistencies
/polish # Final cleanup
/distill # Remove complexity
Most commands accept an optional argument to focus on a specific area:
/audit header
/polish checkout-form
Note: Codex CLI uses a different syntax: /prompts:audit, /prompts:polish, etc.
See DEVELOP.md for contributor guidelines and build instructions.
Apache 2.0. See LICENSE.
The frontend-design skill builds on Anthropic's original. See NOTICE.md for attribution.
Created by Paul Bakaus
Best experience: Claude Code
/plugin marketplace add pbakaus/impeccableThen /plugin menu → select skill → restart. Use /skill-name:init for first-time setup.
Other platforms
Install via CLI
npx mdskills install pbakaus/impeccableImpeccable Design Skills is a free, open-source AI agent skill. A design language system with 1 skill, 20 commands, and curated anti-patterns for impeccable frontend design. Enhances AI code generation tools to produce better, non-generic interfaces across typography, color, spatial design, motion, interaction, responsive design, and UX writing.
Install Impeccable Design Skills with a single command:
npx mdskills install pbakaus/impeccableThis downloads the skill files into your project and your AI agent picks them up automatically.
Impeccable Design Skills works with Claude Code, Cursor, Gemini Cli, Codex, Vscode Copilot, Opencode. Skills use the open SKILL.md format which is compatible with any AI coding agent that reads markdown instructions.