Read cohort retention and the repeat rate and build the second-purchase engine, since retention compounds LTV. Reach for this when growth depends on acquisition alone.
Installs into .claude/skills of the current project.
Are you the author of Build The Retention Engine?
Add the live security badge to your README. It updates with every re-scan.
[](https://www.skillsdirectory.com/skills/mcorbett51090-build-the-retention-engine)
---
name: build-the-retention-engine
description: "Read cohort retention and the repeat rate and build the second-purchase engine, since retention compounds LTV. Reach for this when growth depends on acquisition alone."
---
# Skill: Build the retention engine
The average brand keeps ~28% for a second purchase; retention is the profit engine.
## Step 1 — Measure cohort retention
Repeat-purchase rate and cohort curves (§3 #3).
## Step 2 — Find the second-purchase gap
Where and why first-time buyers don't return.
## Step 3 — Build the levers
Post-purchase flow, subscription, replenishment, loyalty.
## Step 4 — Re-measure LTV
Track the repeat rate and its LTV impact.
## Output
A cohort-retention read, the second-purchase gap, retention levers, and the LTV impact.
