Paul BakausandClaude Fable 5
ed7a6fbe4e
Two browser-engine quality rules, both warning severity. text-occlusion / element-overlap fires on three shapes: an opaque decorated box painted over a text element (elementFromPoint confirms real coverage, box >= 30%), one text run buried under another when at least one side is a positioned layer (text >= 45%, so line-box leading bleed between stacked flow blocks does not count), and an inline element whose opaque fill leaks past its line onto a neighbour (the class-name collision bug). A large headline whose edge overhangs a bounded content card is caught as an element collision even when the text stays on top. Gradient scrims, decorative SVG emblems, fixed/sticky overlays, floats, and raw image backdrops (contrast territory, deduped against the pixel low-contrast rule) are exempt. first-viewport-column-overflow fires when a multi-column opening section runs one column past 140% of the viewport while a sibling fits inside one screen, the stretched-hero signature. Single-column pages and full-page heroes with no fitting sibling are exempt. Validated: fires on the diagnosed repros, clean across a 60-sample sweep. Fixtures + browser tests added. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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 found2: 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 22.12+
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.