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pbakaus_impeccable/README.npm.md
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dependabot[bot]andGitHub 5dfeba6d3e Bump @babel/parser to 8.0.4 and raise Node floor (#430)
Upgrade @babel/parser from 7.29.7 to 8.0.4 and raise the repository Node 22 minimum from 22.12.0 to 22.18.0 across package metadata, CI, and npm documentation.

No parser API migration was required. Validated with the full local suite and refreshed GitHub CI on Node 22.18.0 and Node 24.

Prepared and validated with AI assistance from OpenAI Codex under maintainer instructions.
2026-08-03 10:46:55 -07:00

2.7 KiB

Impeccable CLI

Detect UI anti-patterns and design quality issues from the command line. Scans HTML, CSS, JSX, TSX, Vue, and Svelte files for 59 deterministic rules, including AI-generated UI tells, accessibility violations, and general design quality problems.

Quick Start

# Install skills into your AI harness (Claude, Cursor, Gemini, etc.)
npx impeccable skills install

# Non-interactive install for a specific scope
npx impeccable skills install -y --providers=claude,codex --scope=project

# First command to run inside your AI harness
/impeccable init

# Update skills to the latest version
npx impeccable skills update

# Install or update skills without hook manifests
npx impeccable skills install --no-hooks

# Link skills from a Git submodule checkout
npx impeccable skills link --source=.impeccable --providers=claude,cursor

# List all available commands
npx impeccable skills help

# Scan files or directories for anti-patterns
npx impeccable detect src/

# Scan a live URL (requires Puppeteer)
npx impeccable detect https://example.com

# JSON output for CI/tooling
npx impeccable detect --json src/

# Deprecated compatibility flag; full scan still runs
npx impeccable detect --fast src/

What It Detects

AI Slop Tells: patterns that scream "AI generated this":

  • Side-tab accent borders, gradient text on headings
  • Purple/violet gradients and cyan-on-dark palettes
  • Dark mode with glowing accents, border + border-radius clashes

Typography Issues: overused fonts (Inter, Roboto), flat type hierarchy, single font families

Color & Contrast: WCAG AA violations, gray text on colored backgrounds, pure black/white

Layout & Composition: nested cards, monotonous spacing, everything-centered layouts

Motion: bounce/elastic easing, layout property transitions

Quality: tiny body text, cramped padding, long line lengths, small touch targets

59 deterministic detector rules in total. See the full catalog at impeccable.style/slop.

Exit Codes

  • 0: no issues found
  • 2: anti-patterns detected

Options

impeccable detect [options] [file-or-dir-or-url...]

  --fast    Regex-only mode (skip jsdom, faster but less accurate)
  --json    Output findings as JSON
  --help    Show help

Requirements

  • Node.js 22.18+
  • jsdom (included as dependency, used for HTML scanning)
  • puppeteer (optional, only needed for URL scanning)

Part of Impeccable

This CLI is part of Impeccable, a cross-provider design skill pack for AI-powered development tools. The full suite includes 23 commands for Claude, Cursor, GitHub Copilot, Gemini, Codex, and more.

License

Apache 2.0