Single-image generation skill for posters, key art, and editorial illustrations. Defaults to gpt-image-2 but is provider-agnostic — the same workflow drives Flux, Imagen, or Midjourney via the active upstream tooling. Output is one or more PNG/JPEG files saved to the project folder.
Install
npx skills add nexu-io/open-design --skill image-posternpx skills add nexu-io/open-design --skill image-poster -a claude-code -gnpx skills add nexu-io/open-design --skill image-poster -a codex -ggemini skills install https://github.com/nexu-io/open-design.git --path plugins/_official/examples/image-postergh skill install nexu-io/open-design image-postergit clone --depth 1 https://github.com/nexu-io/open-design /tmp/nexu-io__open-design
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/nexu-io__open-design/plugins/_official/examples/image-poster ~/.claude/skills/image-poster # Claude Code
cp -R /tmp/nexu-io__open-design/plugins/_official/examples/image-poster ~/.agents/skills/image-poster # Codex, Cursor, Gemini CLI, Copilot, OpenCode