Engineer word-of-mouth and virality using the STEPPS framework (Social Currency, Triggers, Emotion, Public, Practical Value, Stories). Use when the user mentions "go viral", "word of mouth", "shareable content", "social currency", "why people share", "referral program", "nobody is sharing it", or "make this spread".
Install
npx skills add wondelai/skills --skill contagiousnpx skills add wondelai/skills --skill contagious -a claude-code -gnpx skills add wondelai/skills --skill contagious -a codex -ggemini skills install https://github.com/wondelai/skills.git --path contagiousgh skill install wondelai/skills contagiousgit clone --depth 1 https://github.com/wondelai/skills /tmp/wondelai__skills
mkdir -p ~/.claude/skills ~/.agents/skills
cp -R /tmp/wondelai__skills/contagious ~/.claude/skills/contagious # Claude Code
cp -R /tmp/wondelai__skills/contagious ~/.agents/skills/contagious # Codex, Cursor, Gemini CLI, Copilot, OpenCode