YouTube thumbnail design with specific dimensions, contrast rules, and mobile preview optimization. Covers safe zones, text placement, face expression psychology, and A/B testing. Use for: YouTube thumbnails, video cover images, click-through optimization.
Install
npx skills add inference-sh/skills --skill youtube-thumbnail-designnpx skills add inference-sh/skills --skill youtube-thumbnail-design -a claude-code -gnpx skills add inference-sh/skills --skill youtube-thumbnail-design -a codex -ggemini skills install https://github.com/inference-sh/skills.git --path guides/design/youtube-thumbnail-designgh skill install inference-sh/skills youtube-thumbnail-designgit clone --depth 1 https://github.com/inference-sh/skills /tmp/inference-sh__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/inference-sh__skills/guides/design/youtube-thumbnail-design ~/.claude/skills/youtube-thumbnail-design # Claude Code
cp -R /tmp/inference-sh__skills/guides/design/youtube-thumbnail-design ~/.agents/skills/youtube-thumbnail-design # Codex, Cursor, Gemini CLI, Copilot, OpenCode