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story-cover — Novel Cover Generator

Give it a book title and pen name; it infers the genre and uses GPT-Image-2 to produce a professional web-novel cover with the title and author name already rendered.

Image & VideoIntermediate★ 5,602⑂ 846AI score 9/10Last updated: Aug 14, 2026

What it does

  • Scans the title (and synopsis if needed) to pick one of ten genres — xianxia, western fantasy, historical romance, modern romance, urban, mystery, sci-fi, historical, horror, light novel — with an explicit priority order for ties.
  • Builds the English prompt in three layers: text layer (title typography + a carefully specified author-name style with rules, frames, or glow), platform style layer, and scene layer (character, background, lighting).
  • Offers 2–3 composition variants (character close-up / dynamic full body / pure scene) and auto-increments 封面_vN.png so earlier covers are never overwritten; saves the prompt alongside each image.
  • Exports a platform-exact upload file (e.g. 600×800) via center-crop + resize using ImageMagick or macOS sips, so the platform never crops off your title.
  • Prefers Codex CLI's built-in ImageGen (no key needed) and only falls back to the OpenAI-compatible API with GPT_IMAGE_API_KEY; supports image-to-image when you supply a reference image.

Who it's for

  • Self-publishing novelists and web-fiction authors who need covers fast without hiring a designer.
  • Editors or one-person presses producing many covers at consistent quality and exact platform specs.
  • Anyone who wants a worked example of layered image prompting with reliable in-image text.

Example uses

  1. "Make a cover for Sword God Returns by Qingyun for a 3:4 platform" → xianxia detected → golden brush calligraphy title, cloud-scroll author plate → 768×1024 render plus an auto-cropped 600×800 upload file.
  2. "Use this illustration as a style reference but make it urban fantasy" → set REF_IMAGE and the skill routes to the /images/edits endpoint.
  3. Unhappy with v1 → switch to composition B (dynamic full body), shift the palette, and regenerate as v2/v3 while keeping the prompt history.

· · · Install guide · · ·

Try it now, no install

Paste this into Claude to use the skill without installing anything.

Read the instructions in this file and follow them to help me:
https://raw.githubusercontent.com/worldwonderer/oh-story-claudecode/HEAD/skills/story-cover/SKILL.md

What I want: (describe your task here)

If Claude can't open the link, open it yourself and paste the contents instead.

↓ If it works for you, download the ZIP below and install it. Then it runs on its own — no pasting each time.

Install in the Claude app (no terminal)
  1. Download the ZIP with the button below.
  2. In Claude, open Settings → Capabilities and turn on 'Code execution and file creation'. (one time)
  3. Go to Customize → Skills → + → 'Upload a skill' and upload the ZIP.
↓ Download ZIP
Install in Claude Code

Let Claude do it — paste this into Claude Code

Install the skill I found on Claude Skill Mart.
Copy the skills/story-cover folder from the GitHub repo worldwonderer/oh-story-claudecode into my ~/.claude/skills/story-cover/.
When it's done, tell me in one line what this skill can do.

Install with a command instead

git clone https://github.com/worldwonderer/oh-story-claudecode.git /tmp/oh-story-claudecode && mkdir -p ~/.claude/skills && cp -r /tmp/oh-story-claudecode/skills/story-cover ~/.claude/skills/

⚠ This is a third-party skill. Check the source repository before installing.

  1. Open a terminal and clone the repo: git clone https://github.com/worldwonderer/oh-story-claudecode.git
  2. Copy the skill into Claude Code: mkdir -p ~/.claude/skills && cp -r oh-story-claudecode/skills/story-cover ~/.claude/skills/
  3. Make sure curl, jq, and base64 are installed (brew install jq on macOS).
  4. For the platform-size export step, install ImageMagick: brew install imagemagick (macOS sips works as a fallback).
  5. Only if you are not using Codex CLI's built-in image generation, set your key: export GPT_IMAGE_API_KEY=sk-... (add export GPT_IMAGE_BASE_URL=... for a compatible proxy).
  6. Restart Claude Code, then run /story-cover or say "make me a novel cover", and supply the title, pen name, target platform, and output directory.
View source on GitHub ↗License: MIT