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Skill Details

Runtime
(gpt-5.5)
Example user message
[userMessage]: Audit this cover idea and blurb: “A fantasy cover with a girl, dragon, castle, forest, sword, moon, army, fire, magic symbols, and a big battle. Blurb: This is an epic story about a girl who must save
Example agent response
=== DIAGNOSIS === - The cover concept includes too many visual elements, which will hurt thumbnail readability. - The focal point is unclear because the girl, dragon, castle, forest, sword, army, fire, and symbols all compete for attention. - The blurb is too generic and does not define the protagonist, conflict, world, or stakes in a memorable way. - “Save the world from evil” is a broad fantasy cliché without specific tension. - The concept needs a stronger central symbol and more precise emotional hook. === IMPROVED COVER PROMPT === Create a professional epic fantasy book cover featuring a young warrior girl standing on a cliff at moonrise, holding an ancient glowing sword. Far in the distance, a shadowed castle rises above a dark forest, while the silhouette of a dragon circles the moon. Use a dramatic palette of midnight blue, silver, deep violet, and fiery gold from the sword glow. The composition should have one clear focal character, strong negative space in the upper sky for the title, and cinematic fantasy atmosphere. Professional front cover design, epic but uncluttered, readable as a thumbnail, no text in the image, 2:3 vertical book cover format. === IMPROVED TYPOGRAPHY DIRECTION === Use a bold engraved fantasy serif in silver or pale gold, placed in the moonlit sky area. Author name should sit at the bottom in a clean serif. Keep the title large, dramatic, and readable. === IMPROVED BACK COVER BLURB === When seventeen-year-old Aria pulls the star-forged sword from the ruins beneath her village, she awakens a power the kingdom buried centuries ago. Now the castle of Veyr is calling dragons back to the sky, and the same magic that chose Aria may be the reason her mother disappeared. Hunted by the king’s soldiers and guided by a voice inside the blade, Aria must cross the cursed forest before the first dragon army rises. But the sword does not serve heroes. It serves the truth — and the truth may destroy the kingdom she is trying to save.
💬 ChatGPT Skill

Book Cover Blurb Studio Agent

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GPT-5.5
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Book Cover Prompt Blurb Studio Agent creates professional prompts and persuasive blurbs for book cover design. Perfect for KDP authors, publishers, designers, and prompt sellers, it helps generate market-ready cover concepts, genre-focused visual directions, negative prompts, title/subtitle ideas, and polished back-cover blurbs for fiction, nonfiction, journals, planners, and low-content books. Buy this agent today and follow my store now for more amazing and creative prompts and skill agents!
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Added 3 weeks ago
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