Run a structured validity audit on OKRs, KPIs, North Star Metrics, or any success-metric set. Produces a severity-rated issue list with concrete fixes — catches vanity metrics, unfalsifiable key results, outputs disguised as outcomes, gameable targets without guardrails, and metrics disconnected from business value. Use when reviewing OKRs, goals, KPIs, dashboards, or success metrics, or as a validation step after defining metrics in a spec, roadmap, or strategy doc.