unit-economics
Installation
SKILL.md
Unit Economics Skill
A business is only viable if each customer is worth more than it costs to acquire and serve. This skill computes the core unit economics — CAC, LTV, the LTV:CAC ratio, payback period, and contribution margin — from real numbers (not vibes), states a clear verdict against the rule-of-thumb benchmarks, and shows which lever moves the model most.
Required Inputs
Ask for these only if they aren't already provided:
- ARPA — average revenue per account, per month (or per period).
- Gross margin % — the share of revenue left after cost-to-serve.
- Churn % — monthly customer (or revenue) churn — drives LTV.
- CAC — fully-loaded cost to acquire a customer (sales + marketing ÷ new customers).