Market Sizing

Calculate TAM/SAM/SOM market sizes with scenario analyses and documented assumptions.

19|1|Updated Jan 22, 2026
One-click install
npx skills add https://github.com/zircote/sigint --skill market-sizing
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Market Sizing
Source: https://github.com/zircote/sigint/tree/main/skills/market-sizing
Command: npx skills add https://github.com/zircote/sigint --skill market-sizing

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Market sizing helps stakeholders estimate revenue opportunity and prioritize investments by quantifying market scale across TAM, SAM, and SOM.

Core Features & Use Cases

  • Hybrid sizing methods (top-down, bottom-up, value theory) to triangulate market size.
  • Scenario planning (Bear/Base/Bull) with explicit assumptions and data sources.
  • Clear documentation of data sources, assumptions, and priors to support defensible conclusions.
  • Use Case: Evaluate market opportunity for a new product launch and synthesize outputs into executive-ready summaries.

Quick Start

Provide a market sizing brief for a target industry using TAM/SAM/SOM with data sources.

Frequently Asked Questions about Market Sizing

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I calculate TAM, SAM, and SOM for a new product launch?

Estimate TAM, SAM, and SOM by applying top-down, bottom-up, and value-theory methods to triangulate market size, requiring clearly defined assumptions, pricing benchmarks, target segments, and documented data sources.

What is the difference between top-down and bottom-up market sizing?

Top-down market sizing estimates total opportunity from macro data, while bottom-up calculates it using pricing benchmarks and target segment volumes, and combining them creates a defensible scenario analysis.

Can I generate Bear, Base, and Bull scenario plans for enterprise software markets?

Yes, you can generate Bear, Base, and Bull scenario plans for enterprise software markets by documenting explicit assumptions and data sources to produce defensible market opportunity estimates.

What data sources do I need to estimate market opportunity accurately?

Estimating market opportunity accurately requires documented data sources, clearly defined assumptions, pricing benchmarks, and target segments to support credible TAM, SAM, and SOM conclusions across geographic contexts.

When should I use value-theory market sizing over standard bottom-up methods?

Use value-theory market sizing over bottom-up methods when evaluating new product categories where pricing benchmarks are undefined, allowing you to triangulate estimates based on delivered value.