nanoppt

version	1
name	nanoppt
description	Generate stylized presentation slide images using Nano Banana AI. Converts article content to ASCII framework then generates AI images for each slide. Triggers include "nanoppt", "stylized slides", "AI slide images", "presentation images", "Doraemon style slides", "anime presentation". Do NOT use for regular presentations (use slide instead).

NanoPPT

Generate stylized presentation images using Nano Banana (Google Gemini) image generation.

Requires Rebyte API auth — $AUTH_TOKEN and $API_URL are set up per the agent's system prompt; use them as Bearer token and base URL.

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Workflow

Article -> ASCII Framework -> Select Style -> Generate Images -> Use in PPT

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Step 1: Article to ASCII Framework

Read the article, extract core information, and create ASCII layout for each slide.

See tips/article-to-ascii-ppt.md for detailed methodology.

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Step 2: Generate Images

Use scripts/generate.py for all image generation tasks.

Text-to-Image (New slides)

python scripts/generate.py \
  --prompt "Doraemon style, presentation slide, title: Hello World" \
  --model pro \
  --aspect-ratio 16:9 \
  --size 2K \
  --output slide-01.png

Image-to-Image (Edit/Enhance existing)

python scripts/generate.py \
  --input slide-01.png \
  --prompt "Fix the text: change Helo to Hello" \
  --model pro \
  --output slide-01-fixed.png

Script Options

--prompt, -p    Text prompt or editing instructions (required)
--input, -i     Input image path (for image-to-image editing)
--output, -o    Output image path (required)
--model, -m     flash (fast, default) or pro (high quality)
--aspect-ratio  16:9, 1:1, 9:16, etc. (default: 16:9)
--size          1K, 2K, 4K (pro model only)

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API Reference

Endpoint: POST $API_URL/api/data/images/generate

Authentication: Required. Use Authorization: Bearer $AUTH_TOKEN header.

Parameter	Required	Description
prompt	Yes	Text description or editing instructions
image	No	Base64-encoded source image (for image-to-image)
imageMimeType	No	image/png, image/jpeg, or image/webp (default: image/png)
model	No	flash (fast, default) or pro (high quality)
aspectRatio	No	1:1, 16:9, 9:16, 4:3, 3:4, 21:9, etc.
imageSize	No	1K, 2K, 4K (pro model only)

Example curl:

curl -X POST "$API_URL/api/data/images/generate" \
  -H "Authorization: Bearer $AUTH_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{"prompt": "Doraemon style presentation slide", "model": "flash", "aspectRatio": "16:9"}'

Response:

{
  "image": {
    "base64": "iVBORw0KGgo...",
    "mimeType": "image/png",
    "dataUrl": "data:image/png;base64,..."
  },
  "description": "AI generated description"
}

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Style Examples

See examples/ directory for 18+ style samples:

• Anime: Doraemon, Naruto, Ghibli, One Piece
• Trendy: Cyberpunk, Vaporwave, Pixel Art
• Artistic: Ink Wash, Van Gogh, Art Deco

See tips/ppt-image-generation.md for prompt keywords per style.

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Delivering Output

After generating slide images, upload them to the Artifact Store so the user can access them.

Tips

Topic	File
Article to ASCII methodology	tips/article-to-ascii-ppt.md
Style prompt keywords	tips/ppt-image-generation.md
Text correction	tips/text-correction.md
4K upscale	tips/4k-upscale.md