market-sizing-analysis
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.
Profile →npx skills add wshobson/agents --skill market-sizing-analysis --agent claude-code
Same command for any agent — swap --agent for codex, cursor, copilot.
Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.
# 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, r
- Overview
- Core Concepts
- The Three-Tier Market Framework
- When to Use Each Methodology
- Detailed patterns and worked examples
What does the market-sizing-analysis skill do?
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.
How do I install it?
Run `npx skills add wshobson/agents --skill market-sizing-analysis --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.
Where does this skill come from?
From wshobson/agents, a repository with 38,479 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.
Is a popular skill a good skill?
Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.