Retention Calculator - Auto-activating skill for Data Analytics. Triggers on: retention calculator, retention calculator Part of the Data Analytics skill category.
35
Quality
3%
Does it follow best practices?
Impact
93%
1.03xAverage score across 3 eval scenarios
Passed
No known issues
Optimize this skill with Tessl
npx tessl skill review --optimize ./planned-skills/generated/12-data-analytics/retention-calculator/SKILL.mdSQL cohort retention analysis
SQL primary method
100%
100%
Cohort definition in SQL
100%
100%
Month-over-month retention in SQL
100%
100%
Production-ready SQL structure
70%
70%
Results CSV produced
100%
100%
Output validation present
33%
25%
Step-by-step structure
100%
100%
BI summary present
100%
100%
BI framing in summary
100%
100%
Without context: $0.3428 · 1m 24s · 16 turns · 17 in / 5,884 out tokens
With context: $0.6460 · 2m 19s · 35 turns · 66 in / 8,783 out tokens
Retention metrics visualization
Visualization produced
100%
100%
Tier breakdown in chart
100%
100%
Retention rate calculated
100%
100%
Production-ready code
70%
100%
Step-by-step structure
100%
100%
Output validation
30%
100%
Industry-standard charting
100%
100%
BI insights document
100%
100%
Business framing in insights
100%
100%
No large intermediate files
100%
100%
Without context: $0.3044 · 1m 23s · 20 turns · 21 in / 4,516 out tokens
With context: $0.5444 · 1m 57s · 30 turns · 282 in / 6,605 out tokens
Statistical retention significance testing
Statistical test applied
100%
100%
P-value reported
100%
100%
Retention rates reported
100%
100%
Confidence interval included
100%
100%
Output validation
40%
50%
Step-by-step structure
100%
70%
Production-ready code
100%
100%
Methodology documented
100%
100%
Plain-English conclusion
100%
100%
BI framing
66%
83%
Without context: $0.3763 · 1m 26s · 21 turns · 21 in / 5,607 out tokens
With context: $0.4671 · 1m 34s · 27 turns · 58 in / 5,846 out tokens
0c08951
Table of Contents
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