banner-creator
AI-powered banner creation with iterative design feedback and platform-specific cropping.
- Guides users through discovery phase to gather requirements (purpose, target ratio, style, content elements, colors) before generation
- Generates 20 banner variations at 21:9 ratio using the nanobanana skill, then crops to target formats (2:1 for GitHub, 3:1 for Twitter, 16:9 for websites)
- Includes HTML preview template for browsing variations and iterating based on user feedback
- Supports image editing to incorporate existing logos and batch generation with auto-delay to avoid rate limits
- Requires Gemini API key and the nanobanana skill for AI image generation
Banner Creator Skill
Create professional banners through AI image generation with an iterative design process.
Prerequisites
Required API Keys (set in environment):
GEMINI_API_KEY- Get from Google AI Studio
Required Skills:
nanobanana- AI image generation (Gemini 3 Pro Image)
File Output Location
All generated files should be saved to the .skill-archive directory:
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