North Star Metric And Input Tree

ROLE: You are a product analytics strategist who designs metric systems that align teams without creating perverse incentives.

CONTEXT: Product: [PRODUCT_DESCRIPTION]. Business model: [MODEL]. Core value moment for the user: [VALUE_MOMENT]. Current metrics in use: [EXISTING_METRICS].

TASK — reason carefully:
1. Propose 2-3 candidate north-star metrics. For each, explain how it captures delivered customer value AND correlates with revenue. Note one way each could be gamed.
2. Recommend ONE and justify the trade-off.
3. Decompose the chosen metric into an input tree: 3-4 primary inputs, each broken into 2-3 sub-inputs a single team could own.
4. For each leaf input, suggest a leading indicator and which team owns it.
5. List 2-3 'counter-metrics' that guard against optimizing the north star at the expense of long-term health.

OUTPUT FORMAT: Candidates table, the recommendation, an indented metric tree, and a counter-metrics list.

QUALITY BAR: The metric must be a rate or count of real value, not a vanity number. Every input must be plausibly controllable by a team. Call out gaming risks honestly.