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phuryn/コホート分析

ユーザーエンゲージメントデータに対してコホート分析を実行——リテンション曲線、機能採用トレンド、セグメントレベルのインサイトを提供します。コホート別のユーザー定着率分析、経時的な機能採用の調査、解約パターンの分析、エンゲージメントトレンドの特定に利用してください。

コホート分析 とは？

このスキルは、ユーザーエンゲージメントデータに対するコホート分析を自動化し、リテンション曲線、機能採用トレンド、セグメントレベルのインサイトを生成します。主にClaude CodeやCursor、CodexなどのAIエージェント上で動作し、CSVやデータベースから読み込んだユーザーイベントデータを基に、週次・月次などの時間間隔でコホートを定義し、経時的なリテンション率や機能利用率の変化を計算します。開発者にとっては、プロダクト改善やマーケティング施策の効果測定、チャurn予測に活用できるため、データ駆動型の意思決定を支援します。スキルは、入力としてテーブル形式のデータを受け取り、出力として可視化チャートや集計テーブルを提供するため、AIエージェントの会話上でインタラクティブに分析を進めることができます。

対応~Claude Code~Codex CLI~Cursor
npx skills add https://github.com/phuryn/pm-skills/tree/main/skills/cohort-analysis

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ドキュメント

コホート分析 は何をしますか？

ユーザーエンゲージメントデータに対してコホート分析を実行——リテンション曲線、機能採用トレンド、セグメントレベルのインサイトを提供します。コホート別のユーザー定着率分析、経時的な機能採用の調査、解約パターンの分析、エンゲージメントトレンドの特定に利用してください。

概要

このスキルは、ユーザーエンゲージメントデータを入力として、コホート分析を自動化します。主な機能は以下の通りです：

  • リテンション曲線の生成：時間経過に伴うユーザー定着率をコホート別に可視化します。
  • 機能採用トレンドの分析：特定機能の利用開始タイミングと普及度をコホート間で比較します。
  • セグメントレベルのインサイト：地域、プラン、デバイスなどの属性でユーザーを分割し、各セグメントの行動パターンを分析します。

対応プラットフォーム

  • Claude Code
  • Cursor
  • Codex
  • その他のAIエージェント

使い方

  1. ユーザーイベントデータ（CSV、JSON、またはデータベースクエリ結果）を提供します。
  2. 分析対象のコホート期間（例：週次、月次）を指定します。
  3. 必要に応じてセグメント条件を設定します。
  4. スキルが自動的にリテンション曲線やトレンドグラフを生成します。

入力データ形式

必要なカラム：

カラム名説明例
user_idユーザー識別子12345
event_dateイベント発生日2024-01-15
event_typeイベント種別signup, login, purchase
segment（任意）セグメント属性premium, free

制限事項

  • データはテーブル形式である必要があります。
  • 日付フィールドはISO 8601形式（YYYY-MM-DD）を推奨します。
  • 大量データ（100万行超）の場合、処理に時間がかかる可能性があります。

ライセンス

MIT

Individual skills in this repo

This repo contains 20 individual skills — each has its own dedicated page.

phuryn/ab-test-analysis

Analyze A/B test results with statistical significance, sample size validation, confidence intervals, and ship/extend/stop recommendations. Use when evaluating experiment results, checking if a test reached significance, interpreting split test data, or deciding whether to ship a variant.

phuryn/analyze-feature-requests

Analyze and prioritize a list of feature requests by theme, strategic alignment, impact, effort, and risk. Use when reviewing customer feature requests, triaging a backlog, or making prioritization decisions.

phuryn/ansoff-matrix

Generate an Ansoff Matrix analysis mapping growth strategies across market penetration, market development, product development, and diversification. Use when considering growth options, planning market expansion, or evaluating strategic growth paths.

phuryn/brainstorm-experiments-existing

Design experiments to test assumptions for an existing product — prototypes, A/B tests, spikes, and other low-effort validation methods. Use when validating assumptions, testing feature ideas cheaply, or planning product experiments.

phuryn/brainstorm-experiments-new

Design lean startup experiments (pretotypes) for a new product. Creates XYZ hypotheses and suggests low-effort validation methods like landing pages, explainer videos, and pre-orders. Use when validating a new product idea, creating pretotypes, or testing market demand.

phuryn/brainstorm-ideas-existing

Brainstorm product ideas for an existing product using multi-perspective ideation from PM, Designer, and Engineer viewpoints. Use when generating new feature ideas, brainstorming solutions for an identified opportunity, or ideating with a product trio.

phuryn/brainstorm-ideas-new

Brainstorm feature ideas for a new product in initial discovery from PM, Designer, and Engineer perspectives. Use when starting product discovery for a new product, exploring features for a startup idea, or doing initial ideation.

phuryn/brainstorm-okrs

Brainstorm team-level OKRs aligned with company objectives — qualitative objectives with measurable key results. Use when setting quarterly OKRs, aligning team goals with company strategy, drafting objectives, or learning how to write effective OKRs.

phuryn/business-model

Generate a Business Model Canvas with all 9 building blocks. Use when creating a business model, documenting how a business creates value, or analyzing an existing business model.

phuryn/competitive-battlecard

Create sales-ready competitive battlecards comparing your product against a specific competitor — positioning, feature comparison, objection handling, and win/loss patterns. Use when preparing sales teams, creating competitive materials, or responding to 'why not competitor X?'

phuryn/competitor-analysis

Analyze competitors with strengths, weaknesses, and differentiation opportunities. Identifies direct competitors and maps the competitive landscape. Use when doing competitive research, preparing a competitive brief, or finding differentiation opportunities.

phuryn/create-prd

Create a Product Requirements Document using a comprehensive 8-section template covering problem, objectives, segments, value propositions, solution, and release planning. Use when writing a PRD, documenting product requirements, preparing a feature spec, or reviewing an existing PRD.

phuryn/customer-journey-map

Create an end-to-end customer journey map with stages, touchpoints, emotions, pain points, and opportunities. Use when mapping the customer experience, identifying friction points, improving onboarding, or visualizing the user journey.

phuryn/draft-nda

Draft a detailed Non-Disclosure Agreement between two parties covering information types, jurisdiction, and clauses needing legal review. Use when creating confidentiality agreements or preparing an NDA for a partnership.

phuryn/dummy-dataset

Generate realistic dummy datasets for testing with customizable columns, constraints, and output formats (CSV, JSON, SQL, Python script). Use when creating test data, building mock datasets, or generating sample data for development and demos.

phuryn/grammar-check

Identify grammar, logical, and flow errors in text and suggest targeted fixes without rewriting the entire text. Use when proofreading content, checking writing quality, or reviewing a draft.

phuryn/growth-loops

Identify growth loops (flywheels) for sustainable traction. Evaluates 5 loop types: Viral, Usage, Collaboration, User-Generated, and Referral. Use when designing growth mechanisms, building product-led traction, or understanding how growth loops work.

phuryn/gtm-motions

Identify the best GTM motions and tools across 7 motion types: Inbound, Outbound, Paid Digital, Community, Partners, ABM, and PLG. Use when selecting marketing channels, choosing between inbound and outbound strategy, or planning cross-channel campaigns.

phuryn/gtm-strategy

Create a go-to-market strategy covering marketing channels, messaging, success metrics, and launch timeline. Use when planning a product launch, creating a GTM plan from scratch, or defining a launch strategy for a new market.

phuryn/ideal-customer-profile

Identify the Ideal Customer Profile (ICP) from research data with demographics, behaviors, JTBD, and needs. Use when defining your ICP, analyzing PMF survey data, or understanding who your best customers are.

関連スキル

affaan-m/uspto-database

USPTO patent and trademark data workflow for official record lookup, PatentSearch queries, TSDR checks, assignment data, and reproducible IP research logs.

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affaan-m/scholar-evaluation

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affaan-m/literature-review

Systematic literature-review workflow for academic, biomedical, technical, and scientific topics, including search planning, source screening, synthesis, citation checks, and evidence logging.

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affaan-m/everything-claude-code

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langgenius/backend-code-review

Review backend code for quality, security, maintainability, and best practices based on established checklist rules. Use when the user requests a review, analysis, or improvement of backend files (e.g., `.py`) under the `api/` directory. Do NOT use for frontend files (e.g., `.tsx`, `.ts`, `.js`). Supports pending-change review, code snippets review, and file-focused review.

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