business-health-diagnostic

分析增长、留存、效率与资本，生成 SaaS 业务健康诊断与建议。

把 SaaS 的增长、留存、单位经济和资本效率连起来看，找出生意哪里出了问题并给出优先处理建议。适合做业务复盘、季度汇报或准备募资时用。特点是整体诊断而非看单一指标，能把急需修复的点排出优先级。

## Purpose

Diagnose overall SaaS business health by analyzing growth, retention, unit economics, and capital efficiency metrics together. Use this to identify problems early, prioritize actions by urgency, and deliver a comprehensive health scorecard for board meetings, quarterly reviews, or fundraising preparation.

This is not a single-metric check—it's a holistic diagnostic that connects revenue, retention, economics, and efficiency to reveal systemic issues and opportunities.

## Input

**Works best with:** Whatever business metrics you have access to — growth rate, NRR/GRR, CAC payback, burn multiple, runway. Partial data is fine; the diagnostic flags what's missing.
**Also useful:** T