tam-sam-som-calculator
Calculate TAM, SAM, and SOM with explicit assumptions, methods, and caveats. Use when sizing a market for a product idea, business case, or executive review.
Install
With your agent
Install OMGSkills skill "deanpeters/product-manager-skills:tam-sam-som-calculator" into this agent's normal skills directory: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/deanpeters/Product-Manager-Skills /tmp/Product-Manager-Skills && ln -s /tmp/Product-Manager-Skills/skills/tam-sam-som-calculator ~/.claude/skills/tam-sam-som-calculatorFrom README
Purpose Guide product managers through calculating Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) for a product idea by asking adaptive, contextually relevant questions. Use this to build defensible market size estimates backed by real-world citations, economic projections, and population data—essential for pitching to investors, securing budget, or validating product-market fit. This is not a back-of-napkin guess—it's a structured, citation-backed analysis that withstands scrutiny. Input Works best with: The product or idea being sized, and any market constraints you already know (geography, vertical, customer type). Also useful: Pricing assumptions, comparable companies, and the audience for the numbers (investors, execs, business case). Anything supplied with the invocation itself — text after the skill name, a pasted context dump, or an appended ARGUMENTS: line — counts as answers already given.
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