Viral Loop Design — Referral, Invite & Share Mechanics
Design viral loops into your product — referral programs, invite systems, and share mechanics that drive exponential growth.
How to use it
Claude Code
- Run the line below. It pulls the whole folder into
~/.claude/skills/viral-marketing-playbook. - Describe your job in plain words. Claude Code follows the skill from there.
Claude Code — installs the whole folder, not just SKILL.md
npx degit Gingiris-1031/gingiris-skills/skills/viral-marketing-playbook#main ~/.claude/skills/viral-marketing-playbookFor one project only, change the path to .claude/skills/viral-marketing-playbook.
Claude (web or desktop app)
- On this page open ⋯ → Download .md.
- Save it as SKILL.md in a folder, zip the folder, then Customize → Skills → + → Create skill → Upload a skill.
- Pick the file and Save. Claude shows the name and description and runs a security scan.
- Check the skill is switched on.
- Start a new chat and describe your job in plain words. The AI follows the skill from there.
ChatGPT or another app
- ChatGPT: make a Project and paste it into Instructions.
- Neither? Paste it at the top of a new chat — it works for that chat.
Not working?
- Check which app you pasted it into — the steps above name the right one.
- Some skills need the paid tier of Claude or ChatGPT.
Paste into Claude, ChatGPT or Cursor.
Source of Viral Loop Design — Referral, Invite & Share Mechanics
Show the full text70 lines
| name | description | source | tags |
|---|---|---|---|
| viral-marketing-playbook | | Design viral loops into your product — referral programs, invite systems, and share mechanics that drive exponential growth. Includes K-factor calculations and real examples from Dropbox, Slack, and Notion. By @WeiYipei. | https://github.com/Gingiris-1031/gingiris-skills/tree/main/skills/viral-marketing-playbook | - viral-marketing - growth-hacking - word-of-mouth - referral-marketing - growth - user-acquisition - product-led-growth - saas - loops - claude-code - ai-agent-skill - agent-skill - latest |
⚠️ 区分 B2B 与 2C
本 skill 默认偏 dev / 开源 / B2B SaaS。若产品是 2C 消费品 / 教育 / 应用 / 游戏：核心指标换成 D1/D7/D30 留存、激活率、病毒系数 K（非 MRR/CAC/LTV）；冷启动渠道换成垂类社区 / 短视频 / 垂直 KOL（非 PH/HN/LinkedIn）。完整 2C 适配指南 + 各国渠道公开数据见 → gingiris-seo-geo/references/2c-adaptation.md。
📦 Install
clawhub install viral-marketing-playbook
What you get after installing:
- Viral loop anatomy — mechanics behind referral, invite, and content loops
- K-factor math to calculate viral coefficient and model growth scenarios
- Real case studies from Dropbox, Notion, and Loom viral engines
Viral Loop Design — Referral, Invite & Share Mechanics
Products don't go viral by accident. This playbook teaches you to engineer virality.
- Viral loop anatomy: The mechanics behind referral, invite, and content loops
- K-factor math: Calculate your viral coefficient and model growth scenarios
- Incentive design: What to offer referrers and referred users (and what doesn't work)
- Share triggers: Moments in the user journey where sharing feels natural
- Case studies: How Dropbox, Notion, and Loom built their viral engines
Related Gingiris Skills
- Full version: https://clawhub.ai/gingiris-1031/skills/gingiris-launch
- All skills: https://clawhub.ai/gingiris-1031
- Follow: @WeiYipei on X
🔗 About the Author
Iris Wei — Growth consultant for 150+ AI startups. Ex-COO at AFFiNE (69K GitHub stars).
- 🐦 Twitter: @WeiYipei — Daily growth tactics
- 💬 Consulting: @Iris_carrot on Telegram
- 🛒 Premium Bundle (all 5 playbooks + templates): Get on Gumroad ($249)
- 📚 40+ Free Playbooks: gingiris.tools/skills
| 1 | |
| 2 | name viral-marketing-playbook |
| 3 | description | |
| 4 | Design viral loops into your product — referral programs, invite systems, and share mechanics that drive exponential growth. Includes K-factor calculations and real examples from Dropbox, Slack, and Notion. By @WeiYipei. |
| 5 | source https://github.com/Gingiris-1031/gingiris-skills/tree/main/skills/viral-marketing-playbook |
| 6 | tags |
| 7 | - viral-marketing |
| 8 | - growth-hacking |
| 9 | - word-of-mouth |
| 10 | - referral-marketing |
| 11 | - growth |
| 12 | - user-acquisition |
| 13 | - product-led-growth |
| 14 | - saas |
| 15 | - loops |
| 16 | - claude-code |
| 17 | - ai-agent-skill |
| 18 | - agent-skill |
| 19 | - latest |
| 20 | |
| 21 | |
| 22 | ## ⚠️ 区分 B2B 与 2C |
| 23 | |
| 24 | 本 skill 默认偏 dev / 开源 / B2B SaaS。若产品是 **2C 消费品 / 教育 / 应用 / 游戏**：核心指标换成 D1/D7/D30 留存、激活率、病毒系数 K（非 MRR/CAC/LTV）；冷启动渠道换成垂类社区 / 短视频 / 垂直 KOL（非 PH/HN/LinkedIn）。完整 2C 适配指南 + 各国渠道公开数据见 → `gingiris-seo-geo/references/2c-adaptation.md`。 |
| 25 | |
| 26 | |
| 27 | |
| 28 | ## 📦 Install |
| 29 | |
| 30 | |
| 31 | clawhub install viral-marketing-playbook |
| 32 | |
| 33 | |
| 34 | **What you get after installing:** |
| 35 | Viral loop anatomy — mechanics behind referral, invite, and content loops |
| 36 | K-factor math to calculate viral coefficient and model growth scenarios |
| 37 | Real case studies from Dropbox, Notion, and Loom viral engines |
| 38 | |
| 39 | |
| 40 | |
| 41 | # Viral Loop Design — Referral, Invite & Share Mechanics |
| 42 | |
| 43 | > 🌍 **Language / 语言**: [中文] | [English] | [日本語] | [한국어] |
| 44 | |
| 45 | Products don't go viral by accident. This playbook teaches you to engineer virality. |
| 46 | |
| 47 | **Viral loop anatomy**: The mechanics behind referral, invite, and content loops |
| 48 | **K-factor math**: Calculate your viral coefficient and model growth scenarios |
| 49 | **Incentive design**: What to offer referrers and referred users (and what doesn't work) |
| 50 | **Share triggers**: Moments in the user journey where sharing feels natural |
| 51 | **Case studies**: How Dropbox, Notion, and Loom built their viral engines |
| 52 | |
| 53 | ## Related Gingiris Skills |
| 54 | Full version: https://clawhub.ai/gingiris-1031/skills/gingiris-launch |
| 55 | All skills: https://clawhub.ai/gingiris-1031 |
| 56 | Follow: [@WeiYipei on X] |
| 57 | |
| 58 | |
| 59 | |
| 60 | |
| 61 | ## 🔗 About the Author |
| 62 | |
| 63 | **Iris Wei** — Growth consultant for 150+ AI startups. Ex-COO at AFFiNE (69K GitHub stars). |
| 64 | |
| 65 | 🐦 Twitter: [@WeiYipei] — Daily growth tactics |
| 66 | 💬 Consulting: [@Iris_carrot on Telegram] |
| 67 | 🛒 Premium Bundle (all 5 playbooks + templates): [Get on Gumroad ($249)] |
| 68 | 📚 40+ Free Playbooks: [gingiris.tools/skills] |
| 69 | |
| 70 |
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