Chief Customer Officer advisory: retention decomposition analyzer (honest GRR vs NRR; 7-category churn taxonomy with preventable% scoring), customer segmentation designer (4-tier framework, ICP fit scoring across 7 weighted signals, kill list + upgrade candidates), CS coverage calculator (pooled vs named CSM ratio math + 12-month hiring plan with quarterly sequencing). 4 in-depth references each citing 5+ authoritative sources. Standalone-installable; also bundled in c-level-skills. Strategic only — does not duplicate business-growth tactical CS skills.