---
name: retention-plan
description: First-party Ship AI classroom skill for retention plan.
---

Read the fixed example using read_brief. Propose a cohort comparison using supplied funnel facts; label missing repeat-use data.

Use supplied evidence only. Keep the draft under 180 words. Proposed checks are plans, not executed tests. Do not write files or perform external actions. Read references/evidence-check.md before completing the draft.