Create cohort analysis creator operations. Auto-activating skill for Data Analytics.
SkillScore92Maintained
Automatic
◆Data Analyst pack
Last verified 8/30/2026
What it changes
Passed 22 of 24 test cases with the skill, and 20 of 24 without it.
Without skill83%
With skill92%
Checks it passed that the model alone missed
Outputs a null value rather than a zero for periods that have not yet occurred
Includes the acquisition channel column in the GROUP BY clause alongside the origin month
2 fixed20 passed either way2 still failing0 broke
Pass-rate lift
+8 pp
Tokens
+24%
Agent turns
0%
Response time
+5%
Model gemini-3.6-flashMeasured 8/30/2026v122 of 24 cases passed with skill
Tokens, turns and time describe resource use, not a dollar price.
See it in action
One of 2 test cases the skill fixed. Same model, same prompt, with and without the skill.
1 of 2
Prompt
Create a weekly retention SQL query. Some groups are too new to have reached week 4 or 5. How should the query handle these future chronological periods so they don't skew average retention rates downward with false zeros?
What was checked, without and with the skill
Checked
Without skill
With skill
Excludes or filters out future periods relative to the origin date
Passed
Passed
Outputs a null value rather than a zero for periods that have not yet occurred
Missed
Passed
case-03 · gemini-3.6-flash · 8/30/2026 · answers are capped and redacted
What's inside
The instructions your model reads when the skill loads.
SKILL.md60 linessingle file
Cohort Analysis Creator
Overview
This skill provides automated assistance for cohort analysis creator tasks within the Data Analytics domain.
When to Use
This skill activates automatically when you:
Mention "cohort analysis creator" in your request
Ask about cohort analysis creator patterns or best practices
Need help with data analytics skills covering sql queries, data visualization, statistical analysis, and business intelligence.
Instructions
Provides step-by-step guidance for cohort analysis creator
Follows industry best practices and patterns
Generates production-ready code and configurations
Validates outputs against common standards
Examples
Example: Basic Usage
Request: "Help me with cohort analysis creator"
Result: Provides step-by-step guidance and generates appropriate configurations