design-referral

Design referral loops with CAC-bound economics and value-triggered sharing.

14|Updated Apr 1, 2026
One-click install
npx skills add https://github.com/hungv47/meta-skills --skill design-referral
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: design-referral
Source: https://github.com/hungv47/meta-skills/tree/main/skills/marketing/design-referral
Command: npx skills add https://github.com/hungv47/meta-skills --skill design-referral

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) and references (resource) components.

What problem does it solve?

This design-skill helps product teams architect viral and referral loops that are measured by K-factor and bounded by CAC economics, guarding against abuse and churn risk.

Core Features & Use Cases

  • Loop architecture selection (collaborative-native, one-sided, double-sided, milestone) with a value-triggered ask.
  • K-factor math and cycle-time modeling with explicit i and c inputs and labeled bases.
  • Incentive economics governance: CPAU, CAC displacement, payback horizon, and fraud guards.
  • Artifact outputs: ready-to-ship loop design artifacts that feed measure-results and plan-campaign.

Quick Start

Choose a loop type, identify the value moment, and validate K-factor math against retention and CAC targets.

Frequently Asked Questions about design-referral

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I design a referral loop with CAC-bound economics?

To design a referral loop with CAC-bound economics, you select a loop architecture, identify the value-triggered share moment, and validate K-factor math against your retention and CAC targets. This ensures your viral growth remains profitable.

What is the K-factor formula for modeling viral growth?

The K-factor formula for viral growth uses explicit i and c inputs, representing invitations sent per user and conversion rate respectively. Modeling this with cycle time calculates how rapidly your user base multiplies through the referral loop.

When should I use single-sided versus double-sided referral incentives?

You choose between single-sided, double-sided, collaborative-native, or milestone referral incentives based on your product's value-triggered share moment. The loop architecture selection balances user motivation against CPAU, CAC displacement, and payback horizon constraints.

How do I calculate CPAU vs CAC for a viral campaign?

You calculate CPAU vs CAC for a viral campaign by applying incentive economics governance to your referral loop. This tracks cost per active user against customer acquisition cost to establish a clear payback horizon for your growth initiatives.

What fraud guards should I add to a referral program?

Fraud guards for a referral program are integrated into the loop design as protective guardrails against abuse and churn risk. They monitor incentive distribution to prevent exploitation while maintaining the value-triggered share mechanics.

Can I apply viral loop math to products with existing retention?

You can apply viral loop math to products with existing retention by architecting a value-triggered ask within the current user experience. The K-factor modeling and CAC economics validate if the referral mechanics will generate sustainable growth.