market-sizing-analysis

wshobson/agents · plugins/startup-business-analyst/skills/market-sizing-analysis/SKILL.md

Calculate TAM/SAM/SOM for market opportunities using top-down, bottom-up, and value theory methodologies. Use this skill when sizing markets, estimating addressable revenue, validating market opportunity for a new venture, or building investor-ready market analysis for a startup pitch or business plan.

No license★ 39156⑂ 4179commit 38e19c2

Install skillView source on GitHub

What this skill does

Market Sizing Analysis

Comprehensive market sizing methodologies for calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for startup opportunities.

Overview

Market sizing provides the foundation for startup strategy, fundraising, and business planning. Calculate market opportunity using three complementary methodologies: top-down (industry reports), bottom-up (customer segment calculations), and value theory (willingness to pay).

Core Concepts

The Three-Tier Market Framework

TAM (Total Addressable Market)

Total revenue opportunity if achieving 100% market share
Defines the universe of potential customers
Used for long-term vision and market validation
Example: All email marketing software revenue globally

SAM (Serviceable Available Market)

Portion of TAM targetable with current product/service
Accounts for geographic, segment, or capability constraints
Represents realistic addressable opportunity
Example: AI-powered email marketing for e-commerce in North America

SOM (Serviceable Obtainable Market)

Realistic market share achievable in 3-5 years
Accounts for competition, resources, and market dynamics
Used for financial projections and fundraising
Example: 2-5% of SAM based on competitive landscape

When to Use Each Methodology

Top-Down Analysis

Use when established market research exists
Best for mature, well-defined markets
Validates market existence and growth
Starts with industry reports and narrows down

Bottom-Up Analysis

Use when targeting specific customer segments
Best for new or niche markets
Most credible for investors
Builds from customer data and pricing

Value Theory

Use when creating new market categories
Best for disruptive innovations
Estimates based on value creation
Calculates willingness to pay for problem solution

Detailed patterns and worked examples

Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.

Installation

Copy a source-pinned command for your client. You run it yourself.

Destination: .claude/skills/market-sizing-analysis · pinned to the source commit

# Run from your project root
git clone https://github.com/wshobson/agents.git .skillboard-tmp
git -C .skillboard-tmp checkout 38e19c20d2b154510b0e624a2e3e186b19b5c527
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/startup-business-analyst/skills/market-sizing-analysis" ".claude/skills/"
rm -rf .skillboard-tmp

Review the source before running. This copies files into your project; it is not a one-click install and does not verify runtime safety.

New here? Step-by-step setup – from installing the agent to using the skill

Operating systemAgentI already use Claude Code

1
Install Git
Install Git with your package manager (Debian/Ubuntu shown; use dnf/pacman on others). Official download.
```
sudo apt update && sudo apt install -y git
```
2
Install Claude Code
Requires Node.js 18+. Install the CLI globally: Official docs. (command-line tool)
```
npm install -g @anthropic-ai/claude-code
```

Get the skill, pinned to its exact version

Open a terminal and run these steps (they clone the source, check out the exact commit, and copy the skill into place):

# Run from your project root
git clone https://github.com/wshobson/agents.git .skillboard-tmp
git -C .skillboard-tmp checkout 38e19c20d2b154510b0e624a2e3e186b19b5c527
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/startup-business-analyst/skills/market-sizing-analysis" ".claude/skills/"
rm -rf .skillboard-tmp

Destination: .claude/skills/market-sizing-analysis

4
Use it in Claude Code
Open Claude Code in your project. It reads skills from the folder above, so market-sizing-analysis is now available. Always review the source before using it – static checks cannot prove runtime safety.

Security & Audits

Scanner static-checks@0.1.0 · commit 38e19c20d2b1. Static checks cannot prove runtime safety – review the source and the exact diff before installing. How checks work.

No static rules matched. This is not a safety guarantee.

market-sizing-analysis

wshobson/agents · plugins/startup-business-analyst/skills/market-sizing-analysis/SKILL.md

No license★ 39156⑂ 4179commit 38e19c2

Install skillView source on GitHub

What this skill does

Market Sizing Analysis

Comprehensive market sizing methodologies for calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for startup opportunities.

Overview

Core Concepts

The Three-Tier Market Framework

TAM (Total Addressable Market)

Total revenue opportunity if achieving 100% market share
Defines the universe of potential customers
Used for long-term vision and market validation
Example: All email marketing software revenue globally

SAM (Serviceable Available Market)

Portion of TAM targetable with current product/service
Accounts for geographic, segment, or capability constraints
Represents realistic addressable opportunity
Example: AI-powered email marketing for e-commerce in North America

SOM (Serviceable Obtainable Market)

Realistic market share achievable in 3-5 years
Accounts for competition, resources, and market dynamics
Used for financial projections and fundraising
Example: 2-5% of SAM based on competitive landscape

When to Use Each Methodology

Top-Down Analysis

Use when established market research exists
Best for mature, well-defined markets
Validates market existence and growth
Starts with industry reports and narrows down

Bottom-Up Analysis

Use when targeting specific customer segments
Best for new or niche markets
Most credible for investors
Builds from customer data and pricing

Value Theory

Use when creating new market categories
Best for disruptive innovations
Estimates based on value creation
Calculates willingness to pay for problem solution

Detailed patterns and worked examples

Detailed pattern documentation lives in references/details.md. Read that file when the navigation tier above is insufficient.

Installation

Copy a source-pinned command for your client. You run it yourself.

Destination: .claude/skills/market-sizing-analysis · pinned to the source commit

# Run from your project root
git clone https://github.com/wshobson/agents.git .skillboard-tmp
git -C .skillboard-tmp checkout 38e19c20d2b154510b0e624a2e3e186b19b5c527
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/startup-business-analyst/skills/market-sizing-analysis" ".claude/skills/"
rm -rf .skillboard-tmp

Review the source before running. This copies files into your project; it is not a one-click install and does not verify runtime safety.

New here? Step-by-step setup – from installing the agent to using the skill

Operating systemAgentI already use Claude Code

1
Install Git
Install Git with your package manager (Debian/Ubuntu shown; use dnf/pacman on others). Official download.
```
sudo apt update && sudo apt install -y git
```
2
Install Claude Code
Requires Node.js 18+. Install the CLI globally: Official docs. (command-line tool)
```
npm install -g @anthropic-ai/claude-code
```

Get the skill, pinned to its exact version

Open a terminal and run these steps (they clone the source, check out the exact commit, and copy the skill into place):

# Run from your project root
git clone https://github.com/wshobson/agents.git .skillboard-tmp
git -C .skillboard-tmp checkout 38e19c20d2b154510b0e624a2e3e186b19b5c527
mkdir -p ".claude/skills"
cp -r ".skillboard-tmp/plugins/startup-business-analyst/skills/market-sizing-analysis" ".claude/skills/"
rm -rf .skillboard-tmp

Destination: .claude/skills/market-sizing-analysis

4
Use it in Claude Code
Open Claude Code in your project. It reads skills from the folder above, so market-sizing-analysis is now available. Always review the source before using it – static checks cannot prove runtime safety.

Security & Audits

Scanner static-checks@0.1.0 · commit 38e19c20d2b1. Static checks cannot prove runtime safety – review the source and the exact diff before installing. How checks work.

No static rules matched. This is not a safety guarantee.

market-sizing-analysis

What this skill does

Market Sizing Analysis

Overview

Core Concepts

The Three-Tier Market Framework

When to Use Each Methodology

Detailed patterns and worked examples

Installation

Install Git

Install Claude Code

Get the skill, pinned to its exact version

Use it in Claude Code

Security & Audits

market-sizing-analysis

What this skill does

Market Sizing Analysis

Overview

Core Concepts

The Three-Tier Market Framework

When to Use Each Methodology

Detailed patterns and worked examples

Installation

Install Git

Install Claude Code

Get the skill, pinned to its exact version

Use it in Claude Code

Security & Audits