How to Use the Copywriting Skill to Generate Marketing Content

What This Gets You#

This guide walks through installing the Copywriting skill and using it to turn one product description into four types of marketing copy: an email sequence, a landing page draft, social media captions, and ad headlines. You feed the skill a brief once and get formatted output for each channel.

Time estimate: 20 minutes from install to first draft.

What You Need Before Starting#

• An AI coding agent that supports skills.sh (Claude Code, Cursor, OpenCode, or Codex)
• Node.js 18+ and npx available on your system
• A product or service description ready — 3-5 sentences about what you’re selling, who it’s for, and what makes it different

Step-by-Step#

1. Install the skill#

Run the install command in your terminal:

npx skills add coreyhaines31/copywriting

Expected output:

> Added coreyhaines31/copywriting to your skills

This downloads the skill’s instruction set into your agent’s skill directory. The skill is now available in your next agent session.

2. Open your agent and load the skill#

Start a new session in Claude Code, Cursor, or OpenCode. The agent picks up installed skills automatically — no manual import needed.

To confirm the skill is loaded, ask your agent:

What skills do I have available?

You should see copywriting listed among your installed skills. If it doesn’t appear, restart your agent session.

3. Prepare your product brief#

Write a short description of what you’re marketing. Keep it to 3-5 sentences. Include:

• What the product or service does
• Who it’s for
• What makes it different from alternatives
• One specific use case or result

Example brief:

SaaS product: TaskFlare, a project management tool for remote teams.
It replaces Slack threads and Trello boards with task-based timelines
that auto-adjust when deadlines shift. Differentiator: smart
rescheduling — move one deadline, the rest adjust automatically.
For small-to-mid-size remote teams tired of context-switching
between chat and project tools.

4. Generate an email sequence#

Tell your agent to generate emails using the Copywriting skill. The exact phrasing matters less than including your brief:

Using the copywriting skill, write a 3-email launch sequence for:
[your brief]

The skill returns output structured as email drafts with subject lines, preview text, and body copy. Each email has an open-loop hook in the subject line and a clear call-to-action at the end.

5. Generate a landing page draft#

Same brief, different format:

Using the copywriting skill, write a landing page for:
[your brief]

Expected output includes a hero headline, subheadline, feature sections, social proof placeholder, and a CTA section. The structure follows conversion copy principles — problem-agitation-solution flow above the fold, risk reversal near the CTA.

6. Generate social captions and ad headlines#

For social media and ads, specify the platforms:

Using the copywriting skill, write 3 LinkedIn caption options,
3 Twitter threads, and 5 ad headlines for: [your brief]

The skill adapts tone per platform. LinkedIn captions get a professional cadence, Twitter threads open with a hook and deliver value in short bursts, ad headlines stay under 10 words with benefit-first framing.

Verification#

To confirm the skill is working correctly, run this minimal test:

npx skills run coreyhaines31/copywriting --dry-run

Expected output confirms the skill is found and its instructions are loadable. If you get a skill not found error, re-run the install step and restart your agent.

Then test with a real invocation in your agent:

Using the copywriting skill, write one ad headline for a
task management tool for remote teams.

You should get a headline back immediately. If the agent responds with generic advice instead of skill-specific output, the skill may not be loading — restart your agent session.

One Thing That Tripped Me Up#

The skill generates its best output when you give it a focused brief. I initially tried to describe my product in one sentence, and the results were generic — the kind of copy you’d get from asking ChatGPT directly. The improvement came when I added a differentiator and a specific use case. The skill’s built-in copywriting templates need material to work with. A vague brief produces vague copy, which defeats the purpose of installing a dedicated skill.

Next Step#

Once you have drafts, run them through the skill again with a refine instruction: “Shorten the headline options to 5 words or less” or “Rewrite the email sequence for a technical audience.” The skill remembers the original brief, so you only need to ask for format adjustments.

To see more examples, read the Copywriting skill page for the full capability breakdown.