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portfolio-case-study-writer

by @paramchoudharyv
4.4(7)

履歴書の要点を詳細なポートフォリオケーススタディに変換し、求職者やプロフェッショナルがプロジェクト経験と成果をより効果的に示すのを支援します。

Portfolio DevelopmentCase Study WritingTechnical WritingContent CreationCareer DevelopmentGitHub
インストール方法
npx skills add paramchoudhary/resumeskills --skill portfolio-case-study-writer
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Before / After 効果比較

1
使用前

// 履歴書の箇条書き: // - ユーザー登録プロセスを最適化し、コンバージョン率を15%向上させた // 手動でケーススタディに拡張: // 課題:古い登録プロセスは複雑で、ユーザーの離脱率が高かった。 // 行動:A/Bテストを実施し、フォームフィールドを簡素化し、エラーメッセージを最適化した。 // 結果:コンバージョン率が15%向上し、ユーザー満足度が向上した。 // 時間がかかり、詳細を埋めるために多くの思考が必要。

使用後

// Portfolio Case Study Writer スキルを使用: // 入力:「ユーザー登録プロセスを最適化し、コンバージョン率を15%向上させた」 // スキル出力: // **プロジェクト名:** ユーザー登録プロセス最適化 // **背景と課題:** 既存のユーザー登録プロセスは冗長で複数の摩擦点があり、新規ユーザーの登録完了率が業界平均を下回り、ユーザー増加に直接影響を与えていました。 // **解決策と行動:** 詳細なユーザー行動分析と競合調査を通じて、登録プロセスにおける主要な課題を特定しました。その後、登録フォームフィールドの簡素化、サードパーティの高速ログインオプションの導入、リアルタイムエラー検証メカニズムの最適化、ユーザーガイド文言の改善など、一連の最適化策を設計・実施しました。また、複数回のA/Bテストを実施し、データに基づいた方法で各イテレーションの効果を検証しました。 // **成果と影響:** この最適化により、ユーザー登録コンバージョン率が15%大幅に向上し、新規ユーザーの増加に直接貢献しました。同時に、ユーザーからのフィードバックでは、登録体験がよりスムーズで使いやすくなったことが示され、登録段階での離脱率が低下し、その後のユーザー定着とアクティブ化の基盤を築きました。 // 構造化され、詳細で魅力的なケーススタディを迅速に生成します。

description SKILL.md


name: Portfolio Case Study Writer description: Transform resume bullets into detailed portfolio case studies

Portfolio Case Study Writer

When to Use This Skill

Use this skill when the user:

  • Wants to create portfolio case studies
  • Needs to expand resume bullets into detailed writeups
  • Is building a portfolio website
  • Wants to showcase project work in depth
  • Mentions: "case study", "portfolio", "project writeup", "work samples", "portfolio piece"

Core Capabilities

  • Transform resume bullets into detailed case studies
  • Structure case studies for maximum impact
  • Create compelling project narratives
  • Balance technical detail with business context
  • Format for portfolio websites
  • Tailor depth to audience

Case Study Purpose

Why Case Studies Matter:

  • Resumes show WHAT you did; case studies show HOW and WHY
  • Demonstrate thinking process, not just outcomes
  • Allow deeper showcase of skills
  • Differentiate you from other candidates
  • Required for many PM, UX, and creative roles

The Case Study Structure

Standard Structure

1. Overview (Project summary)
2. Problem (What needed to be solved)
3. Process (How you approached it)
4. Solution (What you created/delivered)
5. Results (The impact)
6. Learnings (What you'd do differently)

Time to Read

  • Quick Read: 3-5 minutes (essential for portfolio)
  • Deep Dive: 10-15 minutes (for interested readers)

Section-by-Section Guide

1. Overview Section

Purpose: Hook the reader, provide context

Include:

  • Project name and company
  • Your role
  • Timeline
  • Team size
  • One-sentence summary of impact

Example:

# Redesigning the Checkout Flow

**Company:** E-Commerce Inc.
**Role:** Lead Product Designer
**Timeline:** 6 weeks
**Team:** 2 designers, 3 engineers, 1 PM

**Summary:** Reduced cart abandonment by 35% through a streamlined 3-step checkout process, generating $2M in recovered revenue.

2. Problem Section

Purpose: Set up why this work mattered

Include:

  • Business context
  • User pain points
  • Key metrics or goals
  • Constraints

Example:

## The Problem

E-Commerce Inc. was experiencing 68% cart abandonment—significantly higher than the industry average of 55%. Exit surveys and user research revealed several issues:

- **Too many steps:** Our checkout had 7 screens
- **Forced account creation:** Users had to register before purchasing
- **Hidden costs:** Shipping wasn't shown until step 5
- **Mobile friction:** Forms weren't optimized for mobile

**Goal:** Reduce cart abandonment to below 50% within 3 months.

**Constraints:**
- No changes to existing payment integrations
- Had to maintain PCI compliance
- 6-week timeline before holiday season

3. Process Section

Purpose: Show your thinking and methodology

Include:

  • Research conducted
  • Stakeholders involved
  • Hypotheses formed
  • Options considered
  • Decisions made (and why)

Example:

## Process

### Research
I started by understanding the problem deeply:
- Analyzed Mixpanel funnel data for drop-off points
- Conducted 10 user interviews with recent abandoners
- Reviewed heatmaps and session recordings
- Benchmarked against 5 competitor checkout flows

**Key Insight:** 73% of drop-offs occurred at the account creation screen. Users wanted to purchase, not commit to a relationship.

### Ideation
I explored several approaches:
1. Guest checkout only (simplest)
2. Social login options (lower friction)
3. Progressive profiling (collect info over time)
4. One-page checkout (Amazon-style)

After weighing feasibility, timeline, and impact, we chose a hybrid approach...

### Decisions Made
- **Guest checkout first:** Made registration optional and post-purchase
- **Transparent pricing:** Showed shipping on the first screen
- **Mobile-first design:** Designed for mobile, then adapted for desktop
- **Progress indicator:** Added clear "Step 1 of 3" indicator

4. Solution Section

Purpose: Show what you actually created

Include:

  • Visual artifacts (mockups, screenshots, diagrams)
  • Key features/changes
  • Technical implementation (if relevant)
  • How it addressed the problems

Example:

## Solution

### The New Checkout Flow

**Before:** 7 screens with mandatory registration
**After:** 3 screens with optional guest checkout

[IMAGE: Before/After comparison]

### Key Changes

**1. Transparent Pricing Widget**
[IMAGE: Pricing widget mockup]
Showed order total, shipping, and taxes from the start. No surprises.

**2. Guest Checkout Option**
[IMAGE: Guest checkout screen]
Made account creation optional with clear value proposition for why to register.

**3. Smart Form Design**
[IMAGE: Form design]
- Single-column layout on mobile
- Auto-format for phone/card numbers
- Address autocomplete integration
- Clear error messaging

**4. Trust Signals**
Added security badges, money-back guarantee, and customer service contact throughout the flow.

5. Results Section

Purpose: Prove impact with data

Include:

  • Quantitative results (with timeframe)
  • Comparison to goals
  • Secondary metrics affected
  • Business impact

Example:

## Results

### Primary Metrics (90 days post-launch)

| Metric | Before | After | Change |
|--------|--------|-------|--------|
| Cart Abandonment | 68% | 44% | -35% |
| Checkout Completion | 32% | 56% | +75% |
| Mobile Conversion | 18% | 41% | +128% |
| Revenue per Visitor | $2.40 | $3.85 | +60% |

### Business Impact
- **$2M additional revenue** in first quarter
- **15% increase in mobile orders**
- **Customer support tickets about checkout** dropped by 45%

### Secondary Effects
- Account creation actually increased 20% (post-purchase)
- Average order value stayed stable
- Return customer rate improved

6. Learnings Section

Purpose: Show growth mindset and self-awareness

Include:

  • What worked well
  • What you'd do differently
  • Unexpected challenges
  • Skills developed

Example:

## Learnings

### What Worked
- **Early user research** prevented us from building the wrong solution
- **Cross-functional alignment** meetings kept everyone on the same page
- **Launching with analytics** let us measure impact immediately

### What I'd Do Differently
- **More A/B testing:** We launched the full redesign at once. Would have preferred to test individual changes to understand what drove results.
- **Earlier mobile focus:** We designed desktop-first then adapted. Starting mobile-first would have been more efficient.
- **Stakeholder education:** Spent too long convincing leadership. Would start stakeholder alignment earlier next time.

### Skills Developed
- Advanced Figma prototyping
- Working with A/B testing frameworks
- Presenting data-driven design decisions to executives

Case Study Types by Role

Product Manager Case Study

Focus on:

  • Strategy and prioritization
  • Stakeholder management
  • Metrics and outcomes
  • Technical trade-offs

UX/Product Designer Case Study

Focus on:

  • User research
  • Design process
  • Visual artifacts
  • Usability improvements

Software Engineer Case Study

Focus on:

  • Technical architecture
  • Problem-solving approach
  • System design
  • Code quality/performance

Marketing Case Study

Focus on:

  • Strategy and targeting
  • Creative execution
  • Channel performance
  • ROI and attribution

Visual Elements

Must-Have Visuals

  • Before/after comparisons
  • Key screens or deliverables
  • Process diagrams
  • Results charts

Nice-to-Have Visuals

  • User journey maps
  • Wireframes evolution
  • Research artifacts
  • Team photos

Visual Tips

  • Use consistent image sizing
  • Add captions explaining each image
  • Blur sensitive data if needed
  • Ensure mobile-friendly image sizes

Output Format

When creating a case study:

# CASE STUDY: [PROJECT NAME]

## Quick Facts
- **Role:** [Your role]
- **Company:** [Company]
- **Timeline:** [Duration]
- **Team:** [Team composition]
- **Impact:** [One-line result]

---

## Overview
[2-3 sentence summary of the project]

## Problem
[Context and challenges - what needed to be solved]

## Process
### Research
[What you learned]

### Approach
[How you tackled it]

### Key Decisions
[Important choices and rationale]

## Solution
[What you built/created - include visual descriptions]

### Feature 1
[Description]

### Feature 2
[Description]

## Results
[Quantified impact]

| Metric | Before | After | Change |
|--------|--------|-------|--------|

## Learnings
[Reflections and growth]

---

## Visual Asset List
[List of images/screenshots needed]

Case Study Quality Checklist

  • ✅ Clear problem statement
  • ✅ Evidence of user/customer focus
  • ✅ Process clearly explained
  • ✅ Your specific contributions are clear
  • ✅ Quantified results
  • ✅ Visual artifacts included
  • ✅ Honest about challenges/learnings
  • ✅ Appropriate length (3-10 min read)
  • ✅ Proofread and polished
  • ✅ Can discuss in detail in interview

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統計データ

インストール数308
評価4.4 / 5.0
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更新日2026年3月17日
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対応プラットフォーム

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タイムライン

作成2026年3月17日
最終更新2026年3月17日