For example, I will write a prompt in my own words, then it'll walk me through a few questions to make it better, such as image color (colored, vibrant, neon, black/white, etc), what style image do I want (photorealistic, anime, drawing, digital, 3d, etc), lighting (soft, natural, direct, dim, etc), and whatever other details that might be helpful such as photography style, clothing style, scenery, etc depending on previous answers. I envision each of these steps having an example image for each option to give you an idea of what that means (like what does soft vs natural vs direct lighting look like.)
If this doesn't exist, I do believe this is a very useful product worth building.
https://www.logitech.com/en-us/software/logi-ai-prompt-build...
https://blog.logitech.com/2024/04/17/looking-to-improve-your...
Generate a picture of a house
house.jpg
Let's change it to colonial style
House2.jpg
I don't like the color let's change it to red.
House3.jpg
Redo it using acrylic oil painting.
Etc.
Since we're focusing on images right now, you can't just "build one prompt" to rule them all. Effective prompts are highly dependent on the checkpoint, sampler, Loras, embeddings, etc.
Incidentally, I believe that Foocus tries to use a smaller LLM To try to expand a prompt.
Building something that can actually help those users seems like it would be challenging.