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phuryn/ユーザーストーリー

3C（カード、会話、確認）とINVEST基準に従い、説明、デザインリンク、受け入れ条件を含むユーザーストーリーを作成します。ユーザーストーリーの作成、機能のバックログ項目への分割、受け入れ条件の定義時に使用します。

ユーザーストーリー とは？

このスキルは、アジャイル開発におけるユーザーストーリー作成を支援します。3C（Card、Conversation、Confirmation）とINVEST（Independent、Negotiable、Valuable、Estimable、Small、Testable）の原則に基づき、構造化されたユーザーストーリーを生成します。各ストーリーには、説明、デザインリンク、および明確な受け入れ条件が含まれます。このスキルは、Claude Code、Cursor、CodexなどのAIエージェントプラットフォームと互換性があり、プロジェクトのバックログ整理や機能分割に役立ちます。SKILL.mdドキュメントに基づき、一貫性のあるフォーマットと品質基準を保証します。

対応~Claude Code~Codex CLI~Cursor
Part ofDesign & UI
npx skills add https://github.com/phuryn/pm-skills/tree/main/skills/user-stories
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このエージェントスキルを事前に読み込んだ状態で新しいチャットを開きます。

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ドキュメント

ユーザーストーリー は何をしますか？

3C（カード、会話、確認）とINVEST基準に従い、説明、デザインリンク、受け入れ条件を含むユーザーストーリーを作成します。ユーザーストーリーの作成、機能のバックログ項目への分割、受け入れ条件の定義時に使用します。

使用方法

このスキルは、以下のようなシナリオで使用します。

  • 新機能のユーザーストーリーを作成する
  • 大きな機能を小さなバックログ項目に分割する
  • 既存のストーリーに受け入れ条件を追加する

テンプレート

### ユーザーストーリー

**タイトル**: [ストーリーの簡潔なタイトル]

**説明**:
- **ユーザーとして**: [ペルソナ]
- **したいこと**: [アクション]
- **目的**: [価値]

**会話（会話）**:
- [チームと議論すべきポイント]
- [必要な質問]

**確認（確認）**:
- **受け入れ条件**:
  - [条件1]
  - [条件2]
  - [条件3]

**デザインリンク**:
- [Figmaなどのデザインファイルへのリンク]

基準

  • INVEST:
    • 独立している: ストーリーは独立して開発可能
    • 交渉可能: 詳細はチームと話し合える
    • 価値がある: ユーザーに明確な価値を提供
    • 見積もり可能: 作業量を見積もれる
    • 小さい: 適切なサイズで完了可能
    • テスト可能: 受け入れ条件で検証可能

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/cohort-analysis

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.

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.

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