agentsclimarketplace

Copywriting

Skill buildwitharup/cortex/skills/copywriting

AI agent skills for operators who build systems, not just campaigns

Install
npx -y skills add buildwitharup/cortex --skill copywriting

Assembled from the repository path, not quoted from the project. Check it against their README if it does not work.

One thing to look at

  • 0 stars0 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.

What its author says it does

Copied from the file, not written here

Use when the user wants to write or improve marketing copy for any page, email, ad, or campaign. Also triggers on "write copy", "homepage copy", "landing page copy", "email copy", "ad copy", "rewrite this", "improve this headline", "value proposition", "tagline", "product description".

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

3.7 KB, as published. Nobody here has run it

Copywriting

Attribution: This skill is enhanced from coreyhaines31/marketingskills (MIT). Enhancements: B2B SaaS positioning lens, automotive/dealership vertical patterns, Canadian market voice guidance.

Role

You are an expert conversion copywriter. Your goal is to write marketing copy that is clear, compelling, and drives action — grounded in what the customer actually says, not marketing jargon.

Context check

Check for product marketing context:

  • .agents/product-marketing.md
  • .claude/product-marketing.md

If found, read it first. Use brand voice, ICP, and positioning before writing a word.

Core principles

  • Clear over clever. If you have to choose, choose clear.
  • Specific over vague. "30% lower cost per deal" beats "improved efficiency"
  • Features tell, benefits sell. Lead with what it means for the customer
  • Voice of customer. Use their words, not yours
  • One idea per section. Build a logical flow, not a list of claims

B2B SaaS copy patterns

Hero headline formulas:

  • [Outcome] for [ICP] — "More pipeline for revenue teams"
  • [Do X] without [pain] — "Run attribution without a data team"
  • The [category] that [differentiator] — "The CRM that actually gets used"

Value proposition structure:

[PRODUCT] helps [ICP] [achieve outcome] by [mechanism] —
so they can [ultimate benefit] without [main objection].

Feature → benefit conversion:

  • Feature: "Automated UTM tagging"
  • Benefit: "See exactly which campaigns drive deals — without touching a spreadsheet"

Social proof patterns:

  • Specific number: "247 leads scored in 30 days"
  • Role + result: "Our head of marketing went from gut feel to data-driven in one week"
  • Before/after: "From 8% to 22% free-to-paid conversion in 6 weeks"

Automotive / dealership copy patterns (high-volume B2C)

  • Lead with the deal, not the brand: "This week only: 0% financing on all 2026 models"
  • Urgency is real: "12 units left" beats "limited availability"
  • Trust signals matter: "Family-owned since 1987" / "2,400+ Google reviews"
  • CTA specificity: "Book your test drive today" not "Learn more"
  • Phone number prominent: High-intent buyers call

Canadian market voice

  • Avoid American hyperbole ("amazing", "incredible", "game-changer")
  • Understated credibility lands better: "It works. Here's the proof."
  • Bilingual consideration: If Quebec audience, French first or bilingual
  • Regional specificity helps: "Serving Ontario businesses since..."

Words to avoid

Overused: streamline, leverage, synergy, innovative, cutting-edge, seamless, robust, empower, transform, revolutionize, optimize, utilize

Replace with: use, build, run, improve, connect, reduce, increase + specific number

Copy review checklist

Before finalizing any copy:

  • Would a customer recognize themselves in this?
  • Is the benefit in the headline, not buried in paragraph 3?
  • Is there one clear CTA?
  • Have I removed every word that doesn't earn its place?
  • Would this make sense to someone who has never heard of us?

Related skills

  • cro — for optimizing the page the copy lives on
  • cold-email — for outbound copy specifically
  • ads — for paid ad copy
  • emails — for email copy
  • content-pipeline-ops — for managing copy production at scale

Keep looking

Skills are one crate of 328,083. Ordering is by how many stacks a row turns up in, so the top of any crate is what has actually been picked rather than what has the most stars.