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north-star-metric — Claude Code skill: what it does, how to install

Helps identify your product's North Star Metric and 3-5 input metrics that drive it. Classifies your business game and validates the metric against seven effectiveness criteria.

Install into Claude Code · Skills CLI (Vercel) All methods and platforms ↓
npx skills add phuryn/pm-skills --skill north-star-metric -a claude-code
Open on GitHub

What north-star-metric does

The skill defines a North Star Metric — a single measure that reflects customer value and predicts long-term growth. First, the agent classifies your business: Attention Game (time in product), Transaction Game (number of deals), or Productivity Game (speed of goal completion). Then it suggests a metric and validates it against seven criteria: easy to understand, customer-centric, sustainable value, vision alignment, quantitative, actionable, leading indicator.

The North Star comes with 3-5 input metrics — measures that are easier to move short-term and directly influence the main one. This is a metrics constellation, not a single number. The skill works with business context: model, mission, customer segments, current metrics.

Use it to set up a metrics framework, choose your key measure, or validate a North Star candidate. The author links to a free PDF guide on the framework.

What it helps with

  • identify the main growth metric for a product
  • choose measures for a metrics framework
  • classify business by monetization model
  • validate a North Star candidate against criteria
  • understand which metrics drive the main measure

Example prompts for the agent

  • Help me choose a North Star Metric for a video course subscription service
  • What input metrics drive weekly active users for a marketplace?
  • Check if 'completed projects per week' works as a North Star for our task manager

How to install north-star-metric

1Skills CLI (Vercel)

npx skills add phuryn/pm-skills --skill north-star-metric -a claude-code

2Manually: put the files in place

~/.claude/skills/north-star-metric/SKILL.md

Copy the whole skill folder; for one project use .claude/skills/north-star-metric/

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Questions about north-star-metric

How to install north-star-metric in Claude Code?

Run npx skills add phuryn/pm-skills --skill north-star-metric -a claude-code. The skill will appear in ~/.claude/skills/north-star-metric/SKILL.md.

What does the north-star-metric skill do?

It identifies your product's North Star Metric and 3-5 input metrics that drive it. Classifies your business model — Attention, Transaction, or Productivity — and validates the metric against seven criteria: easy to understand, customer-centric, sustainable value, vision alignment, quantitative, actionable, leading indicator.

What are the three business games in north-star-metric?

Attention Game tracks time in product (YouTube, Spotify). Transaction Game counts deals (Amazon, Uber). Productivity Game measures how fast customers reach their goals (Notion, Canva). The skill classifies your business to suggest the right North Star.

Source text

SKILL.md · MIT
---
name: north-star-metric
description: "Define a North Star Metric and 3-5 supporting input metrics that form a metrics constellation. Classify the business game (Attention, Transaction, Productivity) and validate against 7 criteria for an effective North Star. Use when choosing a North Star Metric, setting up a metrics framework, learning about the North Star Framework, or deciding what to measure."
---
# North Star Metric

Identify a North Star Metric and 3-5 Input Metrics that form a metrics constellation. Classifies the business game being played and validates against criteria for an effective North Star. Use when defining key metrics, setting up a metrics framework, or choosing what to measure.

## Domain Context

NSM is **NOT**: multiple metrics, a revenue/LTV metric (must be customer-centric), an OKR (that's a goal-setting technique), or a strategy (but choosing the right NSM is a strategic choice).

NSM **IS**: a single, customer-centric KPI that reflects the value customers get from the product and serves as a leading indicator of long-term business success. You can use Key Results (OKRs) to express expected change in NSM.

Free resource: [The North Star Framework 101 (PDF)](https://learn.productcompass.pm/nsm101)

## When to Use

- Defining your company's key metric framework
- Setting up a metrics tracking system
- Choosing what to measure and optimize for
- Evaluating potential North Star candidates
- Triggers: North Star metric, north star, key metric, what to measure, metrics framework, OMTM

## The Three Business Games

Before identifying your North Star, classify your business into one of these three games:

- **Attention Game**: How much time do customers spend using your product? (Examples: Facebook, Spotify, YouTube, TikTok)
- **Transaction Game**: How many transactions occur between customers and your platform? (Examples: Amazon, Uber, Airbnb, PayPal)
- **Productivity Game**: How efficiently can someone complete their work or achieve their goals? (Examples: Canva, Dropbox, Loom, Notion)

## Prompt

You are a metrics strategist specializing in North Star metrics and growth measurement frameworks.

Given the following business context: $ARGUMENTS

**Step 1: Classify the Business Game**
Determine which game this company plays: Attention, Transaction, or Productivity.

**Step 2: Identify the North Star Metric**
Suggest a single metric that meets all seven criteria for an effective North Star:

1. **Easy to Understand**: Clear definition that everyone in the organization comprehends
2. **Customer-Centric**: Reflects value delivered to customers, not just revenue or activity
3. **Sustainable Value**: Indicates habits and long-term customer engagement
4. **Vision Alignment**: Represents meaningful progress toward the company's vision and mission
5. **Quantitative**: Measurable with clear, numeric tracking
6. **Actionable**: Teams can directly influence it through product, marketing, and operational changes
7. **Leading Indicator**: Predicts future business success and revenue growth

**Step 3: Identify Input Metrics**
Define 3-5 Input Metrics (also called leading indicators) that most directly influence and drive the North Star Metric. Each input metric should:
- Be easier to move in the short term
- Directly contribute to the North Star outcome
- Help identify where optimization efforts should focus

## Tips for Best Results

- Provide details about your business model and revenue model
- Share your company's vision, mission, or long-term goals
- Include current metrics you're tracking
- Mention key customer segments and use cases
- Describe the primary value you deliver to customers

---

### Further Reading

- [The North Star Framework 101](https://www.productcompass.pm/p/the-north-star-framework-101)
- [AARRR (Pirate) Metrics: The 5-Stage Framework for Growth](https://www.productcompass.pm/p/aarrr-pirate-metrics)
- [The Google HEART Framework: Your Guide to Measuring User-Centric Success](https://www.productcompass.pm/p/the-google-heart-framework)
- [The Ultimate List of Product Metrics](https://www.productcompass.pm/p/the-ultimate-list-of-product-metrics)

© phuryn · MIT · phuryn/pm-skills

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