When does this Claude Code skill activate?

It activates automatically when you ask questions about market size, TAM/SAM/SOM calculations, market opportunity validation, or if a market is 'big enough' to pursue.

What is the '10% Rule' in this framework?

The 10% Rule is a sanity check that asks: if you captured 10% of your SAM (Serviceable Available Market), would the resulting business be interesting enough to justify the effort?

Can this skill help with investor pitch decks?

Yes, it provides the rigorous definitions and adequacy tests (Lifestyle vs. Venture Scale) required to present a professional market opportunity to investors.

What is the dual-analysis approach used by Market Sizer?

It combines Bottom-Up analysis (building from units and price) with Top-Down analysis (narrowing industry reports) to ensure market estimates are accurate and within a reasonable 2-3x variance.

Market Sizer (TAM/SAM/SOM)

Name: Market Sizer (TAM/SAM/SOM)
Author: shipshitdev

byshipshitdev

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Automatización de Marketing

Calculates and validates market opportunity using rigorous bottom-up and top-down dual-analysis frameworks.

The Market Sizer skill implements Hexa's practical market assessment methodology to help founders and developers determine if a target market is big enough to pursue. By performing simultaneous bottom-up unit analysis and top-down industry reconciliation, it provides a grounded view of Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM). This skill is essential for validating startup ideas, preparing for investor conversations, and assessing market timing and adequacy for venture-scale or lifestyle business goals.

Características Principales

01Market adequacy testing for lifestyle vs. venture scale

02Market stage assessment (Emerging, Growing, Mature, Declining)

0310 GitHub stars

04Sanity check variance analysis between estimation methods

05TAM/SAM/SOM calculation and definitions

06Dual-methodology reconciliation (Bottom-Up vs. Top-Down)

Casos de Uso

01Preparing data-backed market sizing slides for investor pitch decks

02Determining realistic 3-5 year revenue targets based on market capture

03Validating the commercial potential of a new product or feature

What are Skills?·How to Install

Install with 🐟 Skill.Fish

npx skillfish add shipshitdev/library market-sizer

For use in Claude.ai and ChatGPT

Download Skill