Nano Banana

This is a full-featured presentation generator that uses Gemini's image generation API to create slides as high-quality images, then packages them into PPTX files. The workflow is thorough: you have a planning conversation with the user about structure and audience, write a slides_plan.json with actual content, pick a visual style (there are three: lineal color for technical talks, gradient glass for product pitches, vector illustration for educational content), generate all slides in batch, launch a local review server so users can see what came out, then iteratively edit specific slides based on feedback. The author clearly learned this the hard way because the docs spend serious time warning you not to skip the planning phase and not to put meta-labels like "Visual:" in your content field or they'll render as actual text on the slide. Supports multiple Gemini models depending on whether you need speed or quality.

Install to Claude Code

npx -y skills add evoscientist/evoskills --skill nano-banana --agent claude-code