writing-north-star-metrics

Produce a North Star Metric Pack in Markdown (in-chat; or as files if the user requests):

1) North Star Narrative (value model, tie-breaker, scope) 2) Candidate metrics (3–5) + selection rationale (evaluation table) 3) Chosen North Star Metric spec (definition, formula, window, segmentation, owner, data source) 4) Driver tree (leading input/proxy metrics + guardrails)

5) Validation & rollout plan (instrumentation checks, dashboard cadence, decision rules) 6) Risks / Open questions / Next steps (always included)

定義或刷新產品北極星指標 + 驅動程式樹，並產生可共享的北極星指標套件（敘述、指標規格、輸入、護欄、推出）。 來源：liqiongyu/lenny_skills_plus。