North Star Metric

Overview

The North Star Metric (NSM) is the single metric that most directly measures value delivered to customers and predicts revenue over time. Popularized by Sean Ellis and Amplitude. Revenue is the goal; the NSM is the leading indicator that predicts it early enough to act — picking revenue itself produces a lagging dashboard, not a steering wheel.

Compose: aarrr-pirate-metrics instruments the full funnel; NSM elevates one funnel metric to cross-team primacy. first-principles clarifies what value the product actually delivers. pmf-crossing-the-chasm — the NSM is typically an Activation- or Retention-stage metric.

When to Use

Use when: teams are optimizing conflicting metrics; dashboard has 30+ metrics with no priority; a leading indicator of revenue is needed; someone says "NSM," "OMTM," "what should we optimize," or "we measure too many things"; an AI-native product is chasing sign-ups / prompts / demo plays and needs an activated-value metric that survives high inference/capex costs and AI-adoption churn.

Do NOT use when: product has no customers (pre-PMF → use lean-startup); single-team execution in a mature business; genuinely conflicting strategic objectives (the strategy needs work, not a metric).

Coaching Novices (Adaptive Front Door)

• Engine mode: user has a concrete case → run The Process directly.
• Coach mode: user is unfamiliar or has no concrete case → guide step by step.