Copywriting
Skill bestagentkits/ck-skills/plugins/ck-skills/skills/copywriting
Conversion copywriting formulas, headline templates, email copy patterns, landing page structures, CTA optimization, and writing style extraction. Activate for writing high-converting copy, crafting headlines, email campaigns, landing pages, or applying custom writing styles from assets/writing-styles/ directory.From its SKILL.md
npx -y skills add bestagentkits/ck-skills --skill copywritingAssembled from the repository path, not quoted from the project. Check it against their README if it does not work.
3 things to look at
- reads credentialsReads from 1 credential source: `GEMINI_API_KEY`.
- 4 stars4 stars. Stars are a popularity signal and not a quality one, but at this level it is likely that nobody has read this closely except its author, and you would be relying on your own review.
- runs commandsInstructs the agent to run 2 commands, including `python .claude/skills/copywriting/scripts/extract-writing-styles.py --list` and 1 more.
What its file declares
Copied from the file, not written here
The file declares its own license as MIT. That is the author’s claim about this one file, and it is not the same thing as the license GitHub reports for the repository, which is listed with the other numbers below.
SKILL.md
3.8 KB, 858 tokens by cl100k_base, as published. Nobody here has run it
Copywriting
Formulas, templates, patterns, and writing styles for high-converting copy.
When to Use
- Writing headlines/subject lines, landing page copy, email campaigns
- Social posts, product descriptions, CTA optimization, A/B variations
- Applying custom writing styles from user documents
Writing Styles
Load: references/*.md | Default catalog: assets/writing-styles/default.md (50 styles)
Extract styles from multi-format files:
python .claude/skills/copywriting/scripts/extract-writing-styles.py --list # List files
python .claude/skills/copywriting/scripts/extract-writing-styles.py --style <name> # Extract style
Formats: .md .txt .pdf .docx .xlsx .pptx .jpg .png .mp4 (docs/media need GEMINI_API_KEY)
Copy Formulas
Load: references/copy-formulas.md
| Formula | Structure | Best For |
|---|---|---|
| AIDA | Attention → Interest → Desire → Action | Landing pages, ads |
| PAS | Problem → Agitate → Solution | Email, sales pages |
| BAB | Before → After → Bridge | Testimonials, case studies |
| 4Ps | Promise → Picture → Proof → Push | Long-form sales |
| 4Us | Urgent + Unique + Useful + Ultra-specific | Headlines |
| FAB | Feature → Advantage → Benefit | Product descriptions |
Headlines
Load: references/headline-templates.md
Patterns: "How to [X] without [Y]" • "[Number] ways to [benefit]" • "The secret to [outcome]" • "Why [belief] is wrong"
Email Copy
Load: references/email-copy.md
Subject lines: Curiosity gap • Benefit-driven • Question • Urgency
Landing Pages & CTAs
Load: references/landing-page-copy.md | references/cta-patterns.md
Hero: Headline (promise) → Subheadline (how) → CTA (action) → Social proof CTAs: "Start [verb]ing" • "Get [benefit]" • "Yes, I want [benefit]"
Workflows
| Workflow | Purpose | Use When |
|---|---|---|
references/workflow-cro.md | CRO optimization (25 principles) + plan creation workflow | Conversion optimization & CRO plan requests |
references/workflow-enhance.md | Copy enhancement | Improving existing copy |
references/workflow-fast.md | Quick copy generation | Simple, time-sensitive requests |
references/workflow-good.md | Quality copy with research | High-stakes content |
References
| File | Purpose |
|---|---|
references/writing-styles.md | 30 writing styles quick reference |
references/copy-formulas.md | AIDA, PAS, BAB, 4Ps, FAB formulas |
references/headline-templates.md | Headline patterns & templates |
references/email-copy.md | Email copy patterns |
references/landing-page-copy.md | Landing page structure |
references/cta-patterns.md | CTA optimization |
references/power-words.md | Power words by emotion |
references/social-media-copy.md | Platform-specific copy |
scripts/extract-writing-styles.py | Extract styles from multi-format files |
templates/copy-brief.md | Creative brief template |
Agent Integration
Primary: fullstack-developer | Related: brand-guidelines, content-marketing, email-marketing
Best Practices
- Lead with benefit, not feature | 2. One CTA per piece
- Specificity > vague claims | 4. Read aloud—if awkward, rewrite
- Test headlines first | 6. Match copy to awareness level
Outputs
IMPORTANT: Invoke "/ck:project-organization" skill to organize the outputs.
What ships with it: 14 files
48.7 KB alongside SKILL.md, 1 of them executable
references/
- copy-formulas.md3.7 KB
- cta-patterns.md2.8 KB
- email-copy.md3.2 KB
- headline-templates.md3.2 KB
- landing-page-copy.md4.1 KB
- power-words.md3.9 KB
- social-media-copy.md3.5 KB
- workflow-cro.md4.0 KB
- workflow-enhance.md1.1 KB
- workflow-fast.md768 B
- workflow-good.md1.4 KB
- writing-styles.md5.9 KB
scripts/
- extract-writing-styles.pyruns10.5 KB
templates/
- copy-brief.md630 B
Gives 0 of the 12 instructions most marketing audience skills give in 858 tokens
Counted across 690 of the 894 authors here whose files we hold, read 2026-08-07
- Apply Poppins font to headingsin 41 of 690, across 6 files
- Apply Lora font to body textin 41 of 690, across 6 files
- Use Arial fallback for headingsin 39 of 690, across 4 files
- Use Georgia fallback for body textin 39 of 690, across 4 files
- Maintain text hierarchy and formattingin 39 of 690, across 4 files
- Use accent colors for non-text shapesin 38 of 690, across 3 files
- Use RGB values for precise color matchingin 38 of 690, across 3 files
- Use brand colors for primary text and backgroundsin 36 of 690, across 1 file
- Read product marketing context file before asking questions, starting, or auditingin 35 of 690, across 23 files
- Use active voice instead of passive voicein 26 of 690, across 10 files
- Implement or generate appropriate JSON-LD structured datain 24 of 690, across 17 files
- Prioritize clarity over clevernessin 22 of 690, across 8 files
Said here and by no other author read
- invoke project organization skill to organize outputs
Grouped from the skills themselves: near-identical wordings counted once, and counted by distinct author, so one author publishing three of these counts once. Length counted with cl100k_base; the agent that loads this file may tokenize it differently.