Claude-skill-registry email-anti-slop

Prevent generic AI-generated email aesthetics and enforce distinctive, handcrafted design quality. Use when generating HTML emails, email templates, newsletters, marketing emails, or any email content. Ensures emails look professionally designed, not machine-generated. Applies anti-pattern detection and distinctive design requirements.

install
source · Clone the upstream repo
git clone https://github.com/majiayu000/claude-skill-registry
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/email-anti-slop" ~/.claude/skills/majiayu000-claude-skill-registry-email-anti-slop && rm -rf "$T"
manifest: skills/data/email-anti-slop/SKILL.md
source content

Email Anti-Slop Design Enforcer

Every email must look handcrafted by a skilled designer, never algorithmically generated. This skill enforces design quality through explicit anti-patterns and required distinctive elements.

The Core Problem

AI-generated emails converge toward statistical averages—the "safest" choices that satisfy no one and delight no one. These patterns instantly reveal an email as AI-made:

NEVER USE - Typography Sins

  • NO: Arial, Helvetica, Verdana as the ONLY font (no personality)
  • NO: Same font weight throughout (no hierarchy)
  • NO: Generic 14px body / 24px headline (no drama)
  • NO: System font stacks without personality
  • NO: All caps for body text

INSTEAD: Create typographic drama within email-safe constraints:

  • Georgia + Arial pairing (elegant + clean)
  • Trebuchet MS for friendly/modern headers
  • Size jumps: 32px+ headlines vs 14-16px body (2x+ ratio)
  • Strategic bold/light weight contrast in headlines
  • Letter-spacing for sophistication in headers

NEVER USE - Color Sins

  • NO: Plain white (#ffffff) background with pastel cards
  • NO: Blue-to-purple gradients (most overused AI pattern)
  • NO: Generic corporate blue (#0066CC, #007bff)
  • NO: Washed-out pastels with no contrast
  • NO: Gray-on-gray boring neutrals (#f5f5f5, #e5e5e5 everywhere)
  • NO: Pink-to-orange sunset gradients

INSTEAD: Commit to a bold, memorable palette:

  • One dominant brand color used confidently
  • High-contrast accent for CTAs
  • Either dark mode elegant OR warm/rich backgrounds
  • Solid color blocks, not wimpy gradients
  • Background colors that create sections (not all white)

NEVER USE - Layout Sins

  • NO: Predictable hero → 3-column features → CTA flow
  • NO: Everything centered with identical padding
  • NO: Same section structure repeated (card, card, card)
  • NO: Equal-width columns for everything
  • NO: Cookie-cutter spacing (all 20px padding)

INSTEAD: Create visual interest within table constraints:

  • Asymmetric content placement (image left, text right offset)
  • Varied section background colors
  • One oversized hero element
  • Generous OR tight spacing—never medium
  • Full-width impact sections between contained content

NEVER USE - Content Sins

  • NO: "Dear Valued Customer"
  • NO: "Click here to learn more"
  • NO: Stock photo placeholder vibes
  • NO: Buzzword copy ("leverage", "synergy", "innovative")
  • NO: Generic CTAs ("Submit", "Learn More", "Get Started")

INSTEAD: Personality-driven content:

  • Direct address with context
  • Specific, benefit-focused CTAs ("See My Order", "Start Writing")
  • Copy that sounds like a human wrote it
  • Headlines that would work as tweets

Required: The Memorable Element

Before finalizing ANY email, identify the ONE thing recipients will remember. If nothing specific, add one:

For Email:

  • An unexpected hero color block
  • A bold typographic treatment on the main headline
  • An asymmetric image/text layout
  • A distinctive CTA button style (not rounded-everything)
  • A unique section divider or accent

Ask: "What will someone remember 5 minutes after seeing this email?"

Aesthetic Directions (Choose ONE)

Match to brand/industry. Execute with conviction:

DirectionCharacteristicsGood For
Minimal RefinedExtreme whitespace, subtle details, muted palette, elegant restraintFinance, Legal, Luxury
Dark ElegantDeep backgrounds (#1a1a1a), luminous accents, sophisticated shadowsTech, SaaS, Creative
Warm OrganicEarthy tones (terracotta, sage, cream), soft divisionsWellness, Food, Lifestyle
Bold EditorialHigh contrast, serif headlines, magazine-like, strong hierarchyMedia, Publishing, Fashion
Playful BrightPrimary colors, friendly, energetic, clear sectionsConsumer, Kids, Entertainment
Tech ModernMonospace accents, dark themes, cyan/green accentsDeveloper, Cybersecurity, Startup

Pre-Output Checklist

Before generating email HTML:

  • Did I choose ONE clear aesthetic direction?
  • Is there ONE memorable design element?
  • Are colors bold and intentional (not washed out)?
  • Is there clear typographic hierarchy (2x+ size difference)?
  • Does the layout have asymmetry or variation?
  • Would a human designer be proud of this?
  • Does this look different from a default template?

If any answer is "no," revise before output.