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Google Ads Copy Generator & A/B Tester

Writes evidence-grounded Google Ads RSA copy and designs controlled A/B tests to find winning messaging.

Marketing & SEOIntermediate★ 3,786⑂ 483AI score 9/10Last updated: Sep 11, 2026

What it does

  • Produces full RSA asset sets — up to 15 headlines (30 chars) and 4 descriptions (90 chars) — with exact character counts and pin positions.
  • Grounds language in real data: search terms, converting keywords, current ad performance, plus business-context.json and persona files.
  • Enforces a claim ledger: every stat, review, guarantee, price or superlative needs a named source; unsupported claims get flagged needs_substantiation with a claim-free alternative.
  • Designs real experiments: distinct angles (Trust vs. Speed vs. Price), a primary metric, a guardrail metric, minimum exposure (~100 clicks/variant) and a written decision rule.

Who it's for

  • Performance marketers and agencies running Google Ads accounts
  • Teams stuck with generic, interchangeable ad copy and flat CTR/CVR
  • Anyone who must avoid policy risk (competitor names, unverified "#1" claims)

Example uses

  1. "CTR is low in this ad group" → pulls the baseline ads and search terms, proposes a challenger concept designed to beat them.
  2. "Write ads for our new service" → maps services, locations and differentiators into headline categories and outputs a compliant RSA set.
  3. "Set up an ad copy A/B test" → returns hypothesis, traffic split, guardrail metrics and the winner-decision rule before launch.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/nowork-studio/notfair-plugin/HEAD/google-ads/copy/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the google-ads/copy folder from the GitHub repo nowork-studio/notfair-plugin into my ~/.claude/skills/google-ads-copy/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/nowork-studio/notfair-plugin.git && mkdir -p ~/.claude/skills && cp -r notfair-plugin/google-ads ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal.
  2. Clone the repo: git clone https://github.com/nowork-studio/notfair-plugin.git
  3. Create the skills directory: mkdir -p ~/.claude/skills
  4. Copy the whole google-ads folder: cp -r notfair-plugin/google-ads ~/.claude/skills/ (the skill reads sibling folders like ../shared and ../manage, so don't copy only the copy subfolder).
  5. Connect a Google Ads MCP server in Claude Code so the skill can read account data.
  6. Restart Claude Code and try: "write new RSA ad copy for this ad group".
  7. If business-context.json or persona files are missing, run /google-ads-audit first as the skill instructs.
View source on GitHub ↗License: MIT