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phuryn/market-sizing

TAM、SAM、SOMを使用し、トップダウンとボトムアップのアプローチで市場規模を推定します。市場機会の評価、アドレス可能市場の推定、投資家向けピッチの準備、市場参入の評価に使用します。

market-sizing とは？

このスキルは、市場規模の推定を専門的に行うためのツールです。TAM（総アドレス可能市場）、SAM（サービスアドレス可能市場）、SOM（獲得可能市場）という3つの主要な市場区分を用いて、トップダウン方式（上位レベルのデータから市場全体を推計）とボトムアップ方式（個々の顧客や取引から積み上げて推計）の両方のアプローチをサポートします。投資家向けピッチ、新規事業の市場参入評価、ビジネスプランの策定など、定量的な市場分析が必要な場面で特に有用です。このスキルは、Claude Codeやその他のAIエージェントプラットフォーム上で動作し、ユーザーが提供する業界データや顧客セグメント情報をもとに、構造化された市場規模レポートを生成します。また、需要サイド（市場全体の需要）と供給サイド（競合他社やリソース制約）の両方を考慮したバランスの取れた分析が可能で、現実的かつ説得力のある市場予測を提供します。

対応~Claude Code~Codex CLI~Cursor
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ドキュメント

market-sizing は何をしますか？

TAM、SAM、SOMを使用し、トップダウンとボトムアップのアプローチで市場規模を推定します。市場機会の評価、アドレス可能市場の推定、投資家向けピッチの準備、市場参入の評価に使用します。

使用方法

このスキルは、以下のようなシナリオで活用できます：

  • 市場機会の評価: 新しい製品やサービスの市場規模を推定し、ビジネスチャンスを定量化します。
  • アドレス可能市場の推定: TAM、SAM、SOMを算出し、現実的に獲得可能な市場セグメントを特定します。
  • 投資家向けピッチ: 説得力のある市場データを提供し、投資家へのプレゼンテーションを強化します。
  • 市場参入評価: 新規市場への参入戦略を策定する際の基礎データとして活用します。

アプローチ

トップダウン方式

業界レポートや政府統計などの上位レベルのデータから市場全体の規模を推計し、そこからセグメントを絞り込んでTAM、SAM、SOMを導き出します。

ボトムアップ方式

個々の顧客セグメントや取引データから積み上げて市場規模を推計します。より現実的で詳細な分析が可能です。

主要な指標

指標説明
TAM (総アドレス可能市場)製品やサービスが理論的に到達可能な最大市場規模。
SAM (サービスアドレス可能市場)実際のビジネスモデルや地理的制約を考慮した市場規模。
SOM (獲得可能市場)短期間で現実的に獲得できる市場規模。

入力例

以下のような情報を提供してください：

  • 業界名
  • 地理的範囲
  • 顧客セグメント
  • 価格帯
  • 競合状況

出力例

スキルは、以下のような構造化されたレポートを生成します：

  • 市場規模の推定値（TAM、SAM、SOM）
  • 各指標の計算プロセス
  • トップダウンとボトムアップの比較
  • 前提条件と制約事項
  • 推奨される次のステップ

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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