co-growth-user-segmentation

name	co-growth-user-segmentation
description	User segmentation skill. Behavioral, value-based, and lifecycle segmentation with RFM analysis, MECE validation, and segment sizing. Use when DEFINING user segments, creating cohorts, building personas, running RFM analysis, or validating segment coverage.

User Segmentation

Behavioral, value-based, and lifecycle user segmentation.

Use This Skill When

• Defining target user segments for growth initiatives.
• Building behavioral or value-based cohorts.
• Running RFM (Recency, Frequency, Monetary) analysis.
• Validating that segments are MECE.
• Sizing segments for experiment feasibility.

Workflow

1. Clarify segmentation objective and available data dimensions.
2. Select segmentation approach (behavioral / value / lifecycle / RFM).
3. Define segment boundaries and criteria.
4. Validate MECE: every user belongs to exactly one segment.
5. Size each segment (count, % of total, revenue share).
6. Save segment definitions and sizing to files.

Deliverables

• report.md: segmentation rationale and summary.
• results/segments.md: segment definitions using template.
• results/segment-sizing.csv: counts, percentages, revenue share.

Quality Gates

• Segments are MECE (Mutually Exclusive, Collectively Exhaustive).
• Each segment has ≥5% of total users (actionable size).
• RFM scoring uses consistent thresholds across dimensions.
• Segment definitions are concrete and reproducible.
• Sizing data is saved to results/.

If any gate fails: identify the issue, fix, and re-validate.

Gotchas

• Segments below 5% of the user base are rarely actionable for experiments — flag and consider merging.
• RFM quintile boundaries should be recalculated quarterly; stale thresholds misclassify users.
• "Power users" is not a valid segment without concrete behavioral criteria (e.g., ≥10 sessions/week).

Validation Loop

1. Generate segment definitions
2. Check: MECE compliance, minimum size (≥5%), reproducible criteria
3. If any check fails → revise boundaries
4. User approval before finalizing ⏸️