Claude-skill-registry growth

Growth engine for ID8Labs. Systematic experimentation and optimization to scale products through data-driven decisions, retention focus, and sustainable acquisition channels.

install
source · Clone the upstream repo
git clone https://github.com/majiayu000/claude-skill-registry
Claude Code · Install into ~/.claude/skills/
T=$(mktemp -d) && git clone --depth=1 https://github.com/majiayu000/claude-skill-registry "$T" && mkdir -p ~/.claude/skills && cp -r "$T/skills/data/growth" ~/.claude/skills/majiayu000-claude-skill-registry-growth && rm -rf "$T"
manifest: skills/data/growth/SKILL.md
source content

ID8GROWTH - Growth Engine

Purpose

Scale your launched product through systematic experimentation. Growth is not magic—it's methodology.

Philosophy: Retention beats acquisition. One channel mastered beats five attempted. Data over intuition.


When to Use

  • Product is launched and has initial users
  • User needs to grow user base
  • User asks "how do I get more users?"
  • User wants to improve retention
  • User needs help with analytics
  • User wants to optimize conversion
  • Project is in LAUNCHING or GROWING state

Commands

/growth <project-slug>

Run full growth analysis and planning.

Process:

  1. BASELINE - Understand current metrics
  2. MODEL - Map growth mechanics
  3. DIAGNOSE - Find bottlenecks
  4. HYPOTHESIZE - Generate experiments
  5. PRIORITIZE - ICE scoring
  6. EXECUTE - Run experiments
  7. LEARN - Analyze and iterate

/growth metrics

Audit current analytics and define key metrics.

/growth funnel

Analyze conversion funnel and identify drop-offs.

/growth experiment <hypothesis>

Design a specific growth experiment.

/growth retention

Deep dive on retention and engagement.


Growth Philosophy

Solo Builder Reality

What WorksWhat Doesn't
Focused effort on one channelSpray-and-pray multi-channel
Retention optimizationEndless acquisition
Organic/content marketingExpensive paid acquisition
Personal touchAutomated spam
Slow compoundingViral hacks

Growth Priorities

Stage 1: Pre-PMF (< 100 users)

  • Focus: Finding users who love it
  • Metric: Qualitative feedback, NPS
  • Don't worry about: Scale

Stage 2: Early Traction (100-1000 users)

  • Focus: Retention and activation
  • Metric: Day 1/7/30 retention
  • Don't worry about: Growth rate

Stage 3: Growth (1000+ users)

  • Focus: Scalable acquisition
  • Metric: CAC, LTV, growth rate
  • Now optimize: Everything

Process Detail

Phase 1: BASELINE

Establish current state:

MetricValueSource
Total users{N}Database
Active users (DAU/WAU/MAU){N}Analytics
Activation rate{%}Funnel
Retention (D1/D7/D30){%}Cohort
Conversion (free→paid){%}Funnel
Revenue (MRR/ARR)${X}Payments
NPS{score}Survey

If no tracking:

  • Set up analytics first
  • Use
    analytics-tracking
    skill
  • Minimum: Sign-ups, activation, retention

Phase 2: MODEL

Map your growth mechanics:

ACQUISITION
How do users find you?
├── Organic search
├── Social/content
├── Referrals
├── Paid (if any)
└── Direct

ACTIVATION
What's the "aha moment"?
├── First action completed
├── Value received
└── Setup finished

RETENTION
Why do they come back?
├── Core value loop
├── Notifications
├── Habit formation
└── New content/features

REVENUE
How do you monetize?
├── Subscription
├── Usage-based
├── One-time
└── Freemium conversion

REFERRAL
How do they spread it?
├── Word of mouth
├── Built-in sharing
├── Incentivized referral
└── Social proof

Phase 3: DIAGNOSE

Find the bottleneck:

StageBenchmarkYour RateStatus
Visitor → Sign-up2-5%{%}{OK/LOW}
Sign-up → Activated20-40%{%}{OK/LOW}
Activated → Day 720-30%{%}{OK/LOW}
Day 7 → Day 3050-70%{%}{OK/LOW}
Free → Paid2-5%{%}{OK/LOW}

Diagnosis framework:

  1. Compare to benchmarks
  2. Identify biggest drop-off
  3. That's your focus

Phase 4: HYPOTHESIZE

Generate experiment ideas:

For each bottleneck, generate 3-5 hypotheses:

If we [change]
Then [metric] will [improve/increase/decrease]
Because [reasoning]

Example:

If we add an onboarding checklist
Then activation rate will increase by 20%
Because users will know what to do next

Phase 5: PRIORITIZE

ICE Scoring:

ExperimentImpactConfidenceEaseScore
{exp 1}{1-10}{1-10}{1-10}{avg}
{exp 2}{1-10}{1-10}{1-10}{avg}

Definitions:

  • Impact: How much will this move the metric?
  • Confidence: How sure are we it will work?
  • Ease: How easy is it to implement?

Rule: Do highest ICE score first.

Phase 6: EXECUTE

For each experiment:

  1. Define hypothesis clearly
  2. Define success metric
  3. Define sample size needed
  4. Implement change
  5. Run for sufficient time
  6. Analyze results
  7. Document learnings

Minimum experiment duration:

  • High traffic: 1-2 weeks
  • Low traffic: 2-4 weeks
  • Statistical significance matters

Phase 7: LEARN

After each experiment:

QuestionAnswer
Did it work?{Yes/No/Inconclusive}
What was the lift?{X}%
Why did it work/fail?{reasoning}
What did we learn?{insight}
What's next?{next experiment}

Framework References

Growth Loops

frameworks/growth-loops.md
- Viral, content, flywheel mechanics

Analytics

frameworks/analytics.md
- Metrics, tracking, dashboards

Acquisition

frameworks/acquisition.md
- Channels, CAC, scale

Retention

frameworks/retention.md
- Engagement, churn, habit

Optimization

frameworks/optimization.md
- A/B testing, CRO


Output Templates

Growth Model

templates/growth-model.md
- Growth strategy document

Metrics Dashboard

templates/metrics-dashboard.md
- KPI tracking structure


Tool Integration

MCPs

Supabase:

  • Query user data for analysis
  • Cohort analysis
  • Funnel tracking

Perplexity:

  • Research growth tactics
  • Find benchmarks
  • Competitor analysis

Skills

analytics-tracking:

  • Set up tracking
  • Define events
  • Create dashboards

Handoff

After completing growth analysis:

  1. Save outputs:

    • Growth model →
      docs/GROWTH_MODEL.md
    • Metrics →
      docs/METRICS.md
  2. Log to tracker:

    /tracker log {project-slug} "GROWTH: Analysis complete. Focus: {bottleneck}. Top experiment: {experiment}."
    
  3. Update state:

    /tracker update {project-slug} GROWING
    
  4. Next steps:

    • Execute top-priority experiments
    • Review results weekly
    • When stable, transition to ops

Key Metrics Cheat Sheet

AARRR Funnel

StageWhat to Track
AcquisitionTraffic, channels, CAC
ActivationSign-up rate, onboarding completion
RetentionDAU/MAU, D1/D7/D30, churn
RevenueMRR, ARPU, LTV
ReferralK-factor, invite rate

Benchmarks

MetricPoorOKGoodGreat
D1 retention<10%10-20%20-30%>30%
D7 retention<5%5-10%10-20%>20%
D30 retention<2%2-5%5-10%>10%
Free→Paid<1%1-2%2-5%>5%
NPS<00-3030-50>50

Anti-Patterns

Anti-PatternWhy BadDo Instead
Vanity metricsDon't drive businessFocus on actionable metrics
Too many experimentsNo learningsOne experiment at a time
No hypothesisCan't learnAlways have clear hypothesis
Short experimentsInconclusiveRun to significance
Ignoring retentionLeaky bucketFix retention first
Copying othersContext mattersAdapt to your situation

Quality Checks

Before finalizing growth plan:

  • Baseline metrics established
  • Biggest bottleneck identified
  • Hypotheses are testable
  • Experiments are prioritized
  • Success metrics defined
  • Realistic timeline set
  • Learning process planned