{
  "endpoint": "https://api.openai.com/v1/images/generations",
  "model": "gpt-image-2",
  "size": "1024x1024",
  "quality": "medium",
  "output_format": "png",
  "background": "",
  "extra": {},
  "prompt": "Create one production-ready image asset for the StoryVault mobile app.\nPersona: Captain Nova (space_adventure_captain).\nAsset name: surprise_me_space.\nAsset label for prompt context only: Surprise Me.\nStep: global.\nUsage: optional_choice_icon.\nTarget size/aspect intent: 512x512.\n\nImage description:\nA glowing mystery planet bubble with a friendly question mark and sparkling orbit ring, no text.\n\nArt direction:\n- Style: premium children storybook, cinematic space adventure, soft 3D illustration, high contrast, cheerful, safe, magical\n- Palette: deep navy, cosmic purple, electric blue, warm yellow, emerald green, coral red\n- Lighting: soft glow, rim light, star sparkle highlights\n- Character consistency: Captain Nova is a warm childlike astronaut guide with a round helmet, star headphones, blue-gold suit accents, and a friendly expression.\n- Safety: No weapons, no frightening aliens, no realistic danger, no sharp horror elements.\n\nHard requirements:\n- Do not include any readable text, letters, numbers, captions, logos, watermarks, labels, UI text, or signage inside the image.\n- Create a polished rounded-square storybook choice tile. Use a clean dark navy or cosmic background inside the tile and keep the main subject centered with comfortable padding. Do not include a text label.\n- Do not include Captain Nova, astronauts, children, guides, or mascot characters. Show only the requested asset subject.\n- Use a premium children storybook look with soft 3D forms.\n- Use kid-safe, cheerful expressions and rounded shapes.\n- Avoid horror, weapons, realistic danger, aggressive expressions, or adult themes.\n- Output a single image asset, not a collage and not a phone UI mockup."
}