ad-creator

ad-creator

Generate ad images using Google's Nano Banana (Gemini) API.
Comes with a Python generation script, 40 DTC ad templates, and an interactive prompt-crafting workflow.

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Why This Exists

Generating good ad creatives with AI image models requires more than a vague description. You need specific prompt structures optimized for each ad format — social proof layouts, comparison shots, UGC-style testimonials, editorial cards. This skill bundles 40 proven templates so Claude can generate on-brand ad images without guesswork.

What It Does

When you ask Claude to generate an image or create ad creatives, this skill:

1. Understands your vision — asks targeted questions about subject, mood, style, lighting, purpose
2. Crafts an optimized prompt — natural language, not keyword soup
3. Generates the image — runs the bundled Python script against the Gemini API
4. Iterates — refines based on your feedback

For ad creatives specifically, it pulls from a library of 40 templates and fills in your brand details.

The 40 Ad Templates

Organized by conversion mechanism:

Category	Templates	Examples
Core Offer	Headline, Offer/Promotion	Text rendering, promotional split
Social Proof	Testimonial, Social Proof, Pull-Quote, Verified Review, Comment Screenshot	Trust stacks, review cards, faux social
Comparison	Us vs Them, Before & After, Comparison Grid, Color Split	Side-by-side, transformation, meme-style
Educational	Features Point-Out, Bullet-Points, Feature Arrow Callout, Benefit Checklist	Diagram-style, split composition, annotated
Editorial	Press/Editorial, Advertorial Card, Faux Press Screenshot	Authority play, native content
UGC-Style	UGC Story, UGC Text Bubble, UGC + Review Split	Instagram-native, organic feel
Lifestyle	Lifestyle Action, Stat Surround, Flavor Story	Product in context, data radial
Bold/Creative	Bold Statement, Long-Form Manifesto, Curiosity Gap	Brand energy, copy-dominant, scroll-stopper
Offer Variants	Bundle Showcase, Hero + Stat Bar, Hero + Promo Burst	System sell, promotional
Native/Organic	iPhone Notes Screenshot, Post-It Note, Whiteboard	Platform-native, ugly ad aesthetic

Each template includes a complete prompt structure with [BRACKETED PLACEHOLDERS] for your brand details.

Prerequisites

pip install google-genai
export GEMINI_API_KEY="your-key-here"  # Get one at https://aistudio.google.com/apikey

Installation

git clone https://github.com/lisovet/claude-skills.git /tmp/claude-skills
cp -r /tmp/claude-skills/skills/ad-creator ~/.claude/skills/

Important: This skill has reference files and a script. You need the whole folder — a single curl of SKILL.md won't include the templates or generation script.

Usage

"Generate a social proof ad for my protein bar brand"
"Create a before/after UGC-style image for my skincare product"
"Make me a testimonial ad with a kitchen setting"

Or invoke directly: /ad-creator

File Structure

ad-creator/
  SKILL.md                          # Workflow + prompt-crafting methodology
  scripts/
    generate.py                     # Python script — calls Gemini API
  references/
    ad-templates.md                 # 40 ad templates with placeholders

Generation Script Flags

python3 ~/.claude/skills/ad-creator/scripts/generate.py \
  --prompt "Your prompt here" \
  --output "./my-ad.png" \
  --model "gemini-2.5-flash-image" \
  --ref product-photo.jpg \
  --ref brand-guide.png

Flag	Description	Default
--prompt / -p	Image prompt (required)	—
--output / -o	Output file path	output.png
--model / -m	Gemini model	gemini-2.5-flash-image
--ref / -r	Reference image (repeatable, up to 14)	—

License

MIT