Cohort Analysis
Runs cohort analysis on retention curves, feature adoption, and churn patterns.
Test report
- Verdict
- Tested · Works
- Score
- Tested
- Jul 11, 2026
- Environment
- Claude Code 2.x (agent harness)
- Upstream re-checked
- Aug 10, 2026 · e2d7b0e
Tested verbatim install (clean, single self-contained SKILL.md), a 6-prompt trigger battery (4/4 fire, 2/2 adjacent stay quiet), and a hand-verifiable 12-user/3-cohort retention task. Both skill and base arms produced the exact correct retention triangle (Jan 100/66.7/33.3/33.3%, Feb 100/75/50%, Mar 100/60%) with proper omission of unobservable cells. The skill arm edged out base by adding a data-quality summary, a longer-term flattening insight, targeted follow-up-research recommendations, and a small-sample caveat — better completeness, same numerical accuracy.
Scored on four weighted criteria — install, triggering, output vs. baseline, docs. How scoring works
- Installs cleanly 5/5
- Triggers reliably 5/5
- Output vs. baseline 6/10
- Docs & honesty 4/5
What Cohort Analysis does
Perform cohort analysis on user engagement data — retention curves, feature adoption trends, and segment-level insights. Use when analyzing user retention by cohort, studying feature adoption over time, investigating churn patterns, or identifying engagement trends.
How to install Cohort Analysis
git clone https://github.com/phuryn/pm-skills
cd pm-skills
mkdir -p ~/.claude/skills
cp -r pm-data-analytics/skills/cohort-analysis ~/.claude/skills/cohort-analysis
Skills live in ~/.claude/skills/ (global) or .claude/skills/
(per-project). Restart Claude Code after installing.
Commands — how to trigger Cohort Analysis
-
/cohort-analysisRuns cohort analysis on retention curves, feature adoption, and churn patterns.
It also activates on plain-language prompts like these:
-
Analyze user retention by signup cohort -
Show feature adoption trends across cohorts -
Investigate churn patterns in our engagement data
Frequently asked questions
- Is the Cohort Analysis skill free?
- Yes. The skill itself is free from phuryn/pm-skills. SkillProof publishes the install command and an independent test verdict at no cost.
- Does Cohort Analysis work with Claude Code?
- We tested it with Claude Code 2.x (agent harness) on Jul 11, 2026. Verdict: Tested · Works. Tested verbatim install (clean, single self-contained SKILL.md), a 6-prompt trigger battery (4/4 fire, 2/2 adjacent stay quiet), and a hand-verifiable 12-user/3-cohort retention task. Both skill and base arms produced the exact correct retention triangle (Jan 100/66.7/33.3/33.3%, Feb 100/75/50%, Mar 100/60%) with proper omission of unobservable cells. The skill arm edged out base by adding a data-quality summary, a longer-term flattening insight, targeted follow-up-research recommendations, and a small-sample caveat — better completeness, same numerical accuracy.
- What is the Cohort Analysis SkillProof Score?
- 8.0/10 — installs cleanly 5/5, triggers reliably 5/5, output vs. baseline 6/10, docs & honesty 4/5.
- How do I install Cohort Analysis?
- Copy the install command from this page, run it in your terminal, and restart Claude Code. Skills live in ~/.claude/skills/ (global) or .claude/skills/ inside a project.
- Can I use Cohort Analysis with Cursor, Copilot, Gemini CLI, Codex or other AI tools?
- The SKILL.md format is native to Claude (Claude Code, Desktop, claude.ai). The instructions inside adapt to other assistants: Cursor rules, GitHub Copilot instructions, Windsurf rules, Custom GPTs, AGENTS.md for OpenAI Codex, and GEMINI.md for Google Gemini CLI — our conversion guides cover each, and the free converter on the tools page does the wrapping for you.