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Impeccable

Design vocabulary and anti-patterns for AI coding harnesses

CodingProduct designNo-Code CreationFreeOpen Source
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AI skill with 23 commands and anti-pattern detection that teaches coding agents hierarchy, contrast, and restraint for production frontend design.

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Impeccable Overview

What is Impeccable?

Impeccable is a free, open-source design skill and slash-command pack for AI coding agents that replaces generic AI frontend output with hierarchy, contrast, restraint, and accessibility built in.

How to use Impeccable?

Install via `npx impeccable skills install` for your harness (Cursor, Claude Code, Copilot, Gemini CLI, Codex CLI, etc.), then invoke commands like `/impeccable craft`, `/typeset`, `/colorize`, or `/audit` directly in the chat. Run `npx impeccable detect src/` in CI to block slop in pull requests.

Core features of Impeccable

  • 23 design slash commands covering craft, shape, typeset, layout, color, motion, UX writing, performance, and hardening
  • 41-rule deterministic anti-pattern detector runnable as CLI or Chrome extension overlay
  • Reads and respects existing design tokens, components, and conventions from your codebase
  • DESIGN.md portable spec output in Google Stitch format that travels between tools
  • Live Mode beta that injects production-quality variants into a running dev server via HMR
  • CI-friendly detector with JSON output and exit codes for build gates

Target audience of Impeccable

AI DevelopersDevelopersSolopreneursStartups

Use cases of Impeccable

  • #1Designing and shipping landing pages and marketing sites with brand-aware visuals
  • #2Auditing existing UIs for AI-generated slop, accessibility issues, and weak hierarchy
  • #3Refining typography, color systems, and motion in an existing product
  • #4Building responsive, accessible interfaces that hold up on small screens first
  • #5Enforcing consistent design quality across a team via pull request checks

Impeccable Details

Impeccable is a free, open-source design skill and plugin for AI coding harnesses such as Cursor, Claude Code, GitHub Copilot, Gemini CLI, and Codex CLI. It gives the agent a designer's vocabulary and ships 23 slash commands covering the full design process: craft, shape, critique, audit, typeset, layout, colorize, animate, delight, bolder, quieter, overdrive, distill, clarify, adapt, polish, optimize, harden, onboard, init, document, extract, and live.

Beyond commands, Impeccable targets the 'AI slop' tells in generated UI. It enforces typography contrast, accessible color palettes, responsive structure, honest interaction states, purposeful motion, and specific UX writing. A deterministic detector with 41 rules can be run via CLI in pull requests, and a Chrome extension surfaces the same checks on any live page.

The skill reads a project's PRODUCT.md and DESIGN.md files, inherits existing design tokens and components, and writes variants back to source as ordinary edits. A Live Mode (beta) lets you pick an element in a running dev server, leave a comment or sketch, and swap in three production-quality variants via HMR.

Install with npx impeccable skills install (or add the Claude Code plugin from the marketplace). Built by Paul Bakaus.

Impeccable Pricing

Pricing model
Free

FAQ from Impeccable

Is Impeccable free?

Yes. The skill, commands, detector, and Chrome extension are all free to use.

Which AI coding tools does it work with?

Cursor, Claude Code, GitHub Copilot, Gemini CLI, Codex CLI, Antigravity, OpenCode, Pi, and other major AI coding harnesses.

How do I install it?

Run `npx impeccable skills install` in your project, or add the Claude Code plugin from the marketplace via `/plugin marketplace add pbakaus/impeccable`.

Can I use the detector in CI?

Yes. Run `npx impeccable detect src/` in a pull request check; it emits JSON output and exit codes the build can read.

Does it override my existing design system?

No. It reads your tokens, components, and conventions from the codebase and matches them instead of inventing its own.

Impeccable Website Traffic Analysis

Visit Over Time

Monthly Visits747.4K
Avg. Visit Duration03:11
Page per Visit6.25
Bounce Rate35.34%
Mar 2026 - May 2026 All Traffic

Geography

Top 5 Regions

📍United States
20.77%
📍India
8.06%
📍China
4.21%
📍Brazil
4.11%
📍Vietnam
3.99%
Mar 2026 - May 2026 Desktop Only

Traffic Sources

Direct
52.24%
Organic Search
25.22%
Organic Social
10.28%
Referrals
9.70%
GenAI
1.30%
Mail
0.80%
Paid Social
0.24%
Display Ads
0.22%
Affiliate
0.00%
Paid Search
0.00%
Mar 2026 - May 2026 Worldwide Desktop Only

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