ACQUISITION → ACTIVATION → RETENTION → REVENUE → REFERRAL
     ↓            ↓            ↓           ↓          ↓
  Visitors    Engaged      Repeat     Paying     Advocates
              Users        Users      Customers

At any time, ONE step is the bottleneck.
Focus 80% effort there.

interface PMFScore {
  very_disappointed: number;  // Target: ≥40%
  somewhat_disappointed: number;
  not_disappointed: number;
}

function assessPMF(survey: PMFScore): PMFResult {
  if (survey.very_disappointed >= 40) {
    return { achieved: true, ready_to_scale: true };
  }
  if (survey.very_disappointed >= 25) {
    return { achieved: false, close: true, focus: 'activation' };
  }
  return { achieved: false, close: false, focus: 'product' };
}

const OMTM_BY_STAGE = {
  idea: 'interviews_completed',
  psf: 'signup_rate',
  mvp: 'activation_rate',
  traction: 'week1_retention',
  scale: 'mrr_growth_rate'
};

function findBottleneck(funnel: FunnelMetrics): string {
  const stages = ['acquisition', 'activation', 'retention', 'revenue', 'referral'];
  const benchmarks = {
    acquisition: 0.05,  // 5% visitor to signup
    activation: 0.25,   // 25% signup to activated
    retention: 0.40,    // 40% week 1 retention
    revenue: 0.05,      // 5% to paid
    referral: 0.10      // 10% refer others
  };

  for (const stage of stages) {
    if (funnel[stage] < benchmarks[stage]) {
      return stage;
    }
  }
  return 'none'; // All healthy
}

NOW (+90 days)     NEXT (+180 days)    LATER (+360 days)
─────────────────  ─────────────────   ─────────────────
Most concrete      Less concrete        Fuzziest
├── 100 users      ├── 1000 users      ├── 10000 users
├── $1K MRR        ├── $10K MRR        ├── $100K MRR
└── 40% PMF        └── Hire #1         └── Series A

// Actions
- 'analyze_funnel': Identify bottleneck in Customer Factory
- 'recommend_omtm': Suggest OMTM for current stage
- 'score_pmf': Run PMF assessment
- 'project_growth': Forecast based on current rates