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Copywriting Assistant

Writes and improves marketing copy with clear, supportable, non-AI-sounding language.

Source Download skill
Repository
coreyhaines31/marketingskills
Stars
57,951
Licence
MIT
Files
5 files

What it does

Once installed, the agent follows a structured copywriting process for web pages such as homepages, landing pages, pricing and product pages. It first works out whether you have a blank brief, a draft with a real voice, or a small point edit to fix, and changes only what that situation calls for. It checks each line for specificity and provability, avoids common AI writing habits, and refuses to invent stats or customer results, flagging missing facts with placeholders instead.

Great for

  • Founders or marketers writing or tightening a landing page or product page
  • People whose existing copy sounds generic or like AI and want it to read more human
  • Teams that want claims kept honest and tied to real evidence

Skip it if

  • Legal, medical or financial promotional copy that needs regulatory review, since the skill does not check compliance
  • Email or popup copy, which the skill itself routes to other skills
  • Fully automated publishing without a human reviewing claims, because the agent can still get facts wrong from the brief it is given

Try asking

  • “Write a hero section and CTA for my new project management app landing page.”
  • “Rewrite this pricing page, it sounds like AI slop, keep my voice.”
  • “Give me three headline options for my homepage and tell me what proof I need to support them.”
  • “Fix only this value proposition sentence and leave the rest of the page alone.”
Step-by-step guide: how to use Copywriting AssistantInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 5 original files, the MIT licence and an attribution note.

    copywriting.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip copywriting.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip copywriting.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Give the agent real facts, numbers and customer quotes up front, since it will not invent them and will mark gaps with placeholders.
  • Share an existing draft or writing sample so the agent keeps your voice rather than its default style.
  • Optionally create a product-marketing context file so the agent can reuse your positioning and avoid re-proposing angles you already tested.

What's inside

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

Redistributed unmodified from coreyhaines31/marketingskills under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.