# Market Sizing

> Estimate TAM, SAM, and SOM for any market from a product description. Use when the user asks about market size, opportunity sizing, or how big a market is.

- Skill: `hamzafarooq/market-sizing` (Agent Skill)
- Install (CLI): `npx skillmds@latest add hamzafarooq/market-sizing`
- Raw SKILL.md: https://api.skillmd.com/api/skills/hamzafarooq/market-sizing/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: hamzafarooq (https://skillmd.com/u/hamzafarooq)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/hamzafarooq/market-sizing

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Ask the user: "Describe your product and target customer in one sentence."

Then produce a market sizing using a bottom-up approach:

## Market Sizing: [Product Name]

**TAM — Total Addressable Market**
- Who is the broadest possible buyer of this type of solution?
- Estimate: [number] × [price point] = $[TAM]
- Source assumption: [how you derived the number]

**SAM — Serviceable Addressable Market**
- Which segment can you realistically reach with your go-to-market?
- Estimate: [number] × [price point] = $[SAM]
- Constraint: [what limits your reach — geography, language, vertical]

**SOM — Serviceable Obtainable Market**
- What share can you capture in 3 years given your team and resources?
- Estimate: [number] × [price point] = $[SOM]
- Assumption: [market share % and why]

**Confidence: LOW / MEDIUM / HIGH**
State which assumptions are weakest and what data would sharpen them.

Be direct about uncertainty. Use ranges not false precision (e.g. "$2B–$5B" not "$3.4B").