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Create banners using AI image generation. Discuss format/style, generate variations, iterate with user feedback, crop to target ratio.
Passed 17 of 22 test cases with the skill, and 0 of 22 without it.
17 fixed0 passed either way5 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
The instructions your model reads when the skill loads.
Create professional banners through AI image generation with an iterative design process.
Required API Keys (set in environment):
GEMINI_API_KEY - Get from Google AI StudioRequired Skills:
nanobanana - AI image generation (Gemini 3 Pro Image)All generated files should be saved to the .skill-archive directory:
.skill-archive/banner-creator/<yyyy-mm-dd-summaryname>/
Example:
.skill-archive/banner-creator/2026-01-19-opc-banner/
banner-01.png
banner-02.png
...
banner-03-cropped.png
preview.html
Before generating, gather requirements from user:
Ask about:
test cases passed, vs 0 / 22 without
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