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Corey HainesClaude skill for marketing

Copywriting

copywriting

When the user wants to write, rewrite, or improve marketing copy for any page, including homepage, landing pages, pricing pages, feature pages, about pages, or product pages. Also use when the user says "write copy for," "improve this copy," "rewrite this page," "marketing copy," "headline help," "CTA copy," "value proposition," "tagline," "hero section copy," "this copy is weak," "this sounds like AI," "AI slop," "make it sound human," or "help me describe my product." Drafts never use AI tells like "it's not X, it's Y" reveals, "no X, no Y, no Z" lists, or sentences that trail into extra comma clauses. For email copy, see emails. For popup copy, see popups. For editing existing copy, see copy-editing. For the offer underneath the copy (bonuses, guarantees, value framing), see offers. Claims must be supportable, and a declined claim names the evidence that would unlock it. Diagnoses the input first (blank brief, real voice, or point edit) and changes only what it calls for.

Install

Run this in your project folder. It works with Claude Code, Cursor, Codex and dozens of other agents.

$ npx skills add coreyhaines31/marketingskills --skill copywriting

Needs Node.js. Add -g to install for every project, or -a claude-code to skip the agent picker.

How to use Copywriting

Once it's installed, Claude reads this skill on its own whenever a request matches what it's for, so you don't have to mention it by name. In Claude Code you can also run it directly by typing /copywriting.

It contains no scripts, only instructions and reference files, so it can't run code on its own.

What the instructions cover

  1. 1Before Writing
  2. 2Diagnose the Situation First
  3. 3Drafting Protocol
  4. 4Copywriting Principles
  5. 5Writing Style Rules
  6. 6No AI Tells
  7. 7Best Practices
  8. 8Page Structure Framework
  9. 9CTA Copy Guidelines
  10. 10Page-Specific Guidance
  11. 11Voice and Tone
  12. 12Output Format

Section headings from the skill's SKILL.md file.

What's inside · 5 files

  • SKILL.md
  • evals/evals.json
  • references/ai-tells.md
  • references/copy-frameworks.md
  • references/natural-transitions.md

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