# North Star

> When to activate: north star metric, NSM, input metrics, leading indicators, metric tree, metric framework, product health metric, vanity metrics

- Skill: `mattakushi432/north-star` (Agent Skill)
- Install (CLI): `npx skillmds@latest add mattakushi432/north-star`
- Raw SKILL.md: https://api.skillmd.com/api/skills/mattakushi432/north-star/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Marketing & Growth
- Author: Mattakushi432 (https://skillmd.com/u/mattakushi432)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/mattakushi432/north-star

---


# North Star Metric

## What Is the North Star Metric

The NSM is the single metric that best captures the core value your product delivers to customers — and predicts long-term revenue.

### NSM Criteria (must satisfy all)
- [ ] **Reflects customer value**: measures the value customers get, not just usage
- [ ] **Leads to revenue**: correlates with retention, expansion, or acquisition
- [ ] **Actionable**: product team can move it through their work
- [ ] **Understandable**: any team member can explain it in one sentence
- [ ] **Measurable**: can be tracked with existing or buildable instrumentation
- [ ] **Not a vanity metric**: moving it means something real

### NSM vs Revenue
Revenue is a lagging indicator — it tells you what happened. NSM tells you what's coming.

```
NSM (leading) → Retention → Revenue (lagging)

If NSM is growing:  revenue will follow
If NSM is flat:     revenue growth will slow
If NSM is falling:  revenue problem is coming
```

## NSM Examples by Business Model

| Product | NSM | Why |
|---------|-----|-----|
| Slack | Messages sent per active team | Measures real collaboration value |
| Airbnb | Nights booked | Captures value for both hosts and guests |
| Spotify | Time spent listening | Reflects engagement and habit formation |
| LinkedIn | Weekly active users who view a feed story | Captures core network value |
| HubSpot | Contacts reached per week | Measures marketing activity value |
| Duolingo | Daily Active Users completing a lesson | Habit + progress |
| Figma | Collaborators on a file | Network effect and value delivered |

## NSM Definition Workshop

### Step 1: Value Moments (30 min, team exercise)
"When does a customer get undeniable value from our product?"
Write each moment on a sticky note. Cluster by theme.

### Step 2: Candidate Metrics (20 min)
Convert top value moments to measurable metrics.
For each: can we measure it? does it lead to retention?

### Step 3: Filter Against Criteria (20 min)
Score each candidate 1–5 on: reflects value / leads to revenue / actionable / understandable / measurable.
Drop any below 3 on any criterion.

### Step 4: Validate with Data (1 week)
Correlate candidates with D90 retention in your data.
Pick the one with strongest correlation.

### Step 5: Gut Check Questions
- Would we be comfortable if this was the only metric our board saw?
- Could every team (eng, design, CS) explain how their work connects to it?
- If this metric goes up while revenue goes down, would we be worried?

## Input Metric Tree

The NSM is influenced by input metrics. Map them as a tree.

```
NSM: Weekly active projects per team
│
├── Acquisition inputs
│   ├── New team signups per week
│   └── Invite acceptance rate
│
├── Activation inputs
│   ├── % teams creating first project in Day 1
│   └── Time-to-first-project (median)
│
├── Engagement inputs
│   ├── % teams with ≥1 active project per week
│   └── Projects created per active team
│
└── Retention inputs
    ├── D30 team retention
    └── % teams returning after 2-week gap
```

### Input Metric Rules
- Each input must have a clear owner (team or person)
- Inputs should be measurable independently of the NSM
- Prioritize inputs by: impact on NSM × ease of improvement
- Review tree quarterly — inputs drift as product evolves

## Leading vs Lagging Indicators

| Type | Timing | Example |
|------|--------|---------|
| **Leading** | Predicts future | Feature adoption, activation rate |
| **Coincident** | Moves with business | DAU, weekly sessions |
| **Lagging** | Confirms what happened | Revenue, churn rate, NPS |

### Diagnostic Sequence
When NSM drops:
1. Check acquisition inputs → is volume down?
2. Check activation inputs → are new users failing to activate?
3. Check engagement inputs → are existing users using less?
4. Check retention inputs → are teams churning faster?
5. Segment by: cohort, plan, geography, acquisition channel

## Vanity Metric Identification

### Vanity Metric Signals
- Metric always goes up regardless of product decisions
- Team cannot take a direct action to improve it
- Improvement doesn't correlate with revenue or retention
- Easy to game without delivering value

### Common Vanity Metrics → Better Alternatives
| Vanity metric | Better alternative |
|--------------|-------------------|
| Total registered users | Weekly active users |
| Total page views | Sessions per user |
| App downloads | DAU |
| Email opens | Replies or clicks |
| Press mentions | Referral traffic from press |
| Social followers | Engagement rate |

## NSM-to-Roadmap Alignment

Every roadmap item should connect to the NSM.

### Connection Template
```
Initiative: [Project name]
Problem: [What user pain or behavior gap exists]
Hypothesis: If we [do X], [input metric Y] will improve by Z%,
            which will contribute to [NSM] improving by ~N%.
Measurement: [How we'll know it worked]
```

### Roadmap Review Checklist
Before adding a project to roadmap:
- [ ] Which input metric does this improve?
- [ ] How does that input connect to the NSM?
- [ ] What's the estimated NSM impact?
- [ ] How will we measure success?

## Metric Decay Detection

NSMs can become obsolete as the product evolves.

### Signs Your NSM Needs Updating
- NSM is growing but revenue is flat or declining
- NSM can be gamed without delivering real value
- Product has evolved significantly since NSM was defined
- New user segments have different value patterns
- NSM correlation with retention has dropped below 0.7

### Update Cadence
- Review NSM relevance annually
- Full redefinition workshop every 2–3 years or after major pivot
- Document the old NSM and why it was changed