Pick yours this week
The four-step ritual
You now have everything you need to choose a real north star, and the choice is a sequence, not a brainstorm. Run it in order.
First, name your game. Attention, transactions, or productivity. For most lean B2B the honest answer is productivity, and naming it rules out the engagement-time metrics that would point you backwards.
Second, name your motion. Product-led or sales-led. Product-led puts your star on a usage or activation metric, because value precedes payment. Sales-led puts it on a product-quality or delivered-outcome metric, because value follows the deal. This step alone prevents the most expensive mistake in the playbook.
Third, name the value-receipt act. The single thing a customer does where they provably receive your core value, the moment that, repeated, keeps them paying. Set its altitude to your stage: pre-PMF, the activation threshold a Slack or a Facebook would call an aha; at scale, an aggregate of that act across every account; at maturity, the retained and expanded version.
Fourth, draft the tree. Three to five inputs you can actually move this week, decomposed along breadth, depth, frequency, and efficiency, plus one or two counter-metrics that would betray anyone gaming the star.
Write it where the whole machine can see it
A north star that lives in your head is not steering anything. Write it down somewhere every weekly experiment and every AI agent reads it, because the entire value of a single point to aim at is that everything aims at the same point. The star sets the direction, the input tree gives each agent its Monday job, the counter-metrics keep it honest, and the weekly experiment moves an input and watches the star respond. That is the operating rhythm of the whole growth machine, end to end, with this one number at its top.
Re-choose it when you move
Then hold it loosely. The day your stage shifts or your motion changes, re-run the four steps. Facebook retired seven friends in ten days because it had outgrown the problem that metric solved, and re-choosing was the framework working, not failing. Your star is a living instrument, not a monument.
This choice does not stand alone, it wires into the wider system. The north star is the top of the funnel metrics you already track, the aim point of the machine you are building, and the headline of the growth operating system that connects your engines. Choose it deliberately from your own game, motion, and stage, give it a tree and a guardrail, and you stop steering by someone else's sky and start steering by your own.