JSON Expander Prompt Example

I'm building a YouTube Title Generator Tool using AI.
Right now, it's very basic:
 → user input → OpenAI → 5 titles.
I want to make it much smarter and more useful.
Goal:
 Help me expand both the JSON input and output structure to include richer data, context, and fields that improve the title quality and allow more control over the generation.
Let’s brainstorm possible JSON fields for:
Input — e.g. video category, tone, audience, keywords, length preference, etc.Output — e.g. title, explanation, SEO score, emotion trigger, clickbait rating, variations, etc.
Think like a product designer + AI prompt engineer.
 Let’s go beyond the basics.