Impeccable is Paul Bakaus's design skill for AI coding agents, started from Anthropic's Frontend Design and grown well beyond it. It installs as one skill with 24 commands - such as /impeccable critique, audit and polish - that cover layout, hierarchy, typography, colour, motion, UX copy and accessibility, for websites, dashboards and native app screens alike. Deterministic detector rules catch the tells of AI-generated design, like Inter everywhere, purple gradients and cards nested in cards. Start a project with /impeccable init.
- Made by
- Paul Bakaus
- Categories
- UI Design, Accessibility & Audits
- License
- Apache-2.0
- Added
- October 2026
- Source
- View source on GitHub
How to install Impeccable
Claude Code
For Claude Code in the terminal, the desktop app or your editor.
- Run:
Using it: Claude loads the skill on its own when your request matches what it does. To call it directly, start your message with /impeccable.
How to install skills in Claude - updating, removing and fixing a skill that does not load.
Claude app
For claude.ai and the Claude desktop app, on Free, Pro, Max, Team and Enterprise plans.
- Impeccable's author documents installs for coding agents only, not for claude.ai or the Claude desktop app.
- In the Claude app, use a skill made for it, such as Anthropic's Frontend Design.
Using it: Claude uses the skill automatically when it is relevant. You can also ask for it by name, for example: “Use the Impeccable skill to…”.
How to install skills in Claude - updating, removing and fixing a skill that does not load.
Codex
For OpenAI Codex: the CLI, the IDE extension and the ChatGPT desktop app.
- Run:
Using it: Codex picks the skill up when your request matches it. To call it directly, mention $impeccable or choose it from /skills.
How to install skills in Codex - updating, removing and fixing a skill that does not load.
Other AI tools
Cursor, Gemini CLI, GitHub Copilot, Windsurf, OpenCode and other agents that read the Agent Skills format - plus any chat model.
- Run:
Using it: In an agent, the skill loads when your request matches it. In a chat, it applies to the conversation you pasted it into.
How to install skills in other AI tools - updating, removing and fixing a skill that does not load.
Read the skill before you install it: its SKILL.md on GitHub. A skill is instructions your agent follows, so treat a third-party one like code you are about to run.
Prompts to try
Once the skill is installed, ask for any of these. Click one to copy it.
More design skills
All agent skills-
Frontend Design Anthropic's official Frontend Design skill steers AI agents away from templated UI toward a deliberate palette, typography and layout for each brief. Anthropic -
UI/UX Pro Max UI/UX Pro Max gives AI agents a searchable library of UI styles, palettes, font pairings and UX guidelines to design and review interfaces. nextlevelbuilder -
Make Interfaces Feel Better Jakub Krehel's skill teaches AI agents the small details that make UI feel polished: shadows, borders, radius, optical alignment, type and micro-motion. Jakub Krehel -
Taste Skill Taste Skill gives AI agents art direction for web pages: researched directions from 247 gallery sites and a browser check that catches generic AI layouts. Leonxlnx -
Prototype Emil Kowalski's Prototype skill builds several genuinely different versions of a UI piece behind a live picker, so you can flip through them and pick one. Emil Kowalski -
Web Design Guidelines Vercel's Web Design Guidelines skill audits your UI code against the Web Interface Guidelines and reports accessibility and UX issues by file and line. Vercel
