What it does

Ad Copywriter generates a complete ad set for your campaign. For Google Search, it produces 15 headlines (30 chars) and 4 descriptions (90 chars) following RSA best practices — with keyword insertion tokens, dynamic headlines, and pinning recommendations. For Meta ads, it writes a primary text (up to 125 chars), a headline, and a description optimised for the feed, Reels, and Stories placements separately.

Each ad set includes an A/B testing plan: which elements to test first (headline hook vs benefit framing vs social proof), how to structure the test, and how to interpret results. The copy is written in the voice you specify — professional/trust-building for B2B, energetic/aspirational for consumer, or minimal/credibility-first for SaaS.

How to install

bash

npx skills add user/ad-copywriter

The skill is stored in your project's .claude/skills/ directory. No global packages are installed. Works immediately after install.

How to use

Describe your product, audience, and target platform:

prompt

Write ad copy for: [product/offer]
Audience: [describe target]
Platform: [Google/Meta/LinkedIn]

Claude returns a structured ad set ready to paste into your ad platform. A typical Google RSA output looks like this:

output

## Google RSA — Ad Set 1

Headline 1: Cut Hiring Time by 50% (28 chars)
Headline 2: Find Top Talent Faster (22 chars)
Headline 3: AI-Powered Recruitment (22 chars)
Headline 4: {KeyWord:Smart Hiring Tool} (dynamic)
Headline 5: Free 14-Day Trial (18 chars)

Description 1: Screen 100 CVs in minutes, not days. (87 chars)
Description 2: Trusted by 2,000+ HR teams worldwide. (86 chars)

Configuration

Adjust the output with natural language instructions after the initial prompt:

prompt

# Cold audience variant
Write for a cold audience who doesn't know the brand

# Pain-point messaging
Focus on pain-point messaging

# A/B variants
Generate 5 A/B test variants

Tip: Pair Ad Copywriter with Landing Page Writer for message match — the ad promise and the landing page headline should use the same language and angle for maximum Quality Score and conversion rate.

Related skills

Combine Ad Copywriter with SEO Content Writer for a full-funnel content strategy, or use Landing Page Writer to ensure your ad copy flows seamlessly into a high-converting destination page. Newsletter Writer helps repurpose winning ad angles into email campaigns.