| name | ad-designer |
| description | Generate image ad creatives using Nano Banana Pro (Gemini). Creates Meta/social ad images for campaigns based on brand guidelines and creative briefs. |
Ad Designer
Generate professional image ad creatives for Meta/social campaigns using AI image generation.
Model
Nano Banana Pro (gemini-3-pro-image-preview)
- State-of-the-art image generation and editing
- Good text rendering for ad copy
- Supports multiple aspect ratios
Prerequisites
GEMINI_API_KEY in environment- Brand guidelines (colors, fonts, voice) — ideally from
/website_brand_analysis
- Creative brief (ad concept, copy, target audience)
Aspect Ratios
Always specify aspect ratio in the prompt. Common Meta ad formats:
| Ratio | Dimensions | Use Case | Prompt Keyword |
|---|
| 1:1 | 1080×1080 | Feed (universal) | "square image" |
| 4:5 | 1080×1350 | Feed (recommended) | "4:5 vertical image" |
| 9:16 | 1080×1920 | Stories/Reels | "9:16 vertical image" |
| 16:9 | 1920×1080 | Landscape | "16:9 landscape image" |
Default to 1:1 unless brief specifies otherwise — it works everywhere.
Prompt Engineering
Critical Rules
-
Be explicit about exclusions:
NO logos. NO brand names. NO company names. NO watermarks. NO additional text.
-
Specify exact text:
The ONLY text on the image should be exactly: [your text here]
-
Keep prompts focused:
- Don't overload with too many instructions
- Separate layout from content from style
-
Include aspect ratio:
Generate a square 1:1 image...
Prompt Template
Generate a [aspect ratio] image.
[Background/setting description]
[Text content - be explicit:]
The ONLY text should be exactly:
- Line 1: "[text]" in [color] [size]
- Line 2: "[text]" in [color] [size]
[Visual elements - icons, mockups, etc.]
Style: [clean/minimal/warm/professional/etc.]
NO logos. NO brand names. NO watermarks. NO additional elements.
Example Prompts
Price Anchor Ad:
Generate a square image. White background. Clean typography only, no decorations, no logos, no icons, no borders, no frames.
The ONLY text on the image should be exactly:
Line 1 (small gray): What companies pay €10,000 to train their teams...
Line 2 (large navy blue): You can learn for €249
Line 3 (small gray): AI Operator Course — 10 hours to AI proficiency.
The €249 should be in gold/yellow color. Nothing else. No brand names. No additional elements.
Native/Organic Creative:
Generate a square photograph of a notebook page. Warm lighting. Cream colored lined paper.
Handwritten text in black ink pen that says EXACTLY:
The AI tools dont matter.
The workflows do.
Most people chase the next tool.
Operators master the fundamentals.
Draw a hand-drawn red circle around the word workflows. Coffee cup visible at edge.
NO logos. NO brand names. NO watermarks. Just the notebook with handwritten text.
Tutorial Carousel Hook:
Generate a square image. Light cream/yellow background.
Navy blue bold text that says EXACTLY: How to summarize any meeting in 30 seconds with AI
Center the text. Include a simple video call icon below the text.
NO logos. NO brand names. NO company names. NO watermarks. Clean minimal design.
API Usage
curl -s "https://generativelanguage.googleapis.com/v1beta/models/gemini-3-pro-image-preview:generateContent?key=$GEMINI_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"contents": [{
"parts": [{
"text": "YOUR_PROMPT_HERE"
}]
}],
"generationConfig": {
"responseModalities": ["image", "text"]
}
}' | jq -r '.candidates[0].content.parts[0].inlineData.data' | base64 -d > output.png
Workflow
1. Receive Brief
Get creative brief with:
- Ad concept (price anchor, native, tutorial, etc.)
- Exact copy/text
- Target aspect ratio
- Brand colors (if applicable)
- Reference images (if any)
2. Construct Prompt
Build prompt using template above. Key points:
- Start with aspect ratio
- Be explicit about exact text
- End with exclusions (NO logos, etc.)
3. Generate Image
Run API call, save to output folder:
~/clawd/output/{project}-{ad-type}-{version}.png
4. Review Before Sending ⚠️
ALWAYS review generated images before sending to user.
Check for:
Use the Read tool to view the image:
Read file_path=/path/to/image.png
5. Iterate if Needed
If image has issues:
- Simplify the prompt
- Be more explicit about exclusions
- Try regenerating (results vary)
6. Deliver
Send via message tool with descriptive caption:
message action=send filePath=/path/to/image.png caption="🎨 Ad Name (1:1) ✓ Reviewed"
Common Issues & Fixes
| Issue | Cause | Fix |
|---|
| Hallucinated logos | Model fills "empty" space | Add "NO logos. NO brand names." explicitly |
| Garbled text | Too many text instructions | Simplify, use fewer lines |
| Wrong aspect ratio | Not specified clearly | Start prompt with "Generate a square/4:5/etc image" |
| Extra decorations | Over-specified design | Add "no decorations, no borders, no frames" |
| Generic stock look | Vague prompt | Add specific style cues (warm lighting, minimal, etc.) |
Ad Types
1. Native/Organic Creative
- Looks like user content, not an ad
- Notebook, whiteboard, screenshot styles
- Text-heavy, minimal design
- Works great for TOFU
2. Price Anchor
- Clean typography on white/simple background
- Comparison format (expensive vs affordable)
- Bold price in accent color
- Works great for MOFU
3. Tutorial/Value Bomb
- Instructional design
- Step badges, mockups
- Educational feel
- Works for TOFU (carousel format)
4. Testimonial/Social Proof
- Quote format
- Photo or avatar (if provided)
- Company logos (if permitted)
- Works for MOFU/BOFU
5. Bold Claim
- Single powerful statement
- Minimal design, maximum impact
- Brand colors
- Works for awareness
Integration
This skill works with:
/campaign_planner — Provides creative briefs/creative_director — Orchestrates asset creation/website_brand_analysis — Provides brand guidelines
Output
Save images to:
~/clawd/output/{project}-{ad-type}-v{N}.png
Examples:
{brand}-hero-v1.png{brand}-price-anchor-v2.png{brand}-carousel-1-v1.png
