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Startup Business Analyst Market Opportunity

This walks you through building a proper market opportunity analysis with TAM, SAM, and SOM calculations using both bottom-up and top-down methodologies. It's interactive, asking for your product details, target customers, and business model, then guides you through segment sizing, data gathering with citations, and validation checks. The output is a comprehensive markdown report with all the sections investors expect to see, including sanity checks against public company benchmarks. It's opinionated about being conservative on projections, which is smart. The whole process takes 30-60 minutes and integrates with other Claude skills for financial modeling. Honestly, this is the kind of structured thinking early-stage founders skip and regret later.

skills.sh installs
463
GitHub stars
39.4K
last updated
Jun 3, 2026

Install

$ npx -y skills add sickn33/antigravity-awesome-skills --skill startup-business-analyst-market-opportunity --agent claude-code

Installs into .claude/skills of the current project.

Files

Market Opportunity Analysis

Generate a comprehensive market opportunity analysis for a startup, including Total Addressable Market (TAM), Serviceable Available Market (SAM), and Serviceable Obtainable Market (SOM) calculations using both bottom-up and top-down methodologies.

Use this skill when

  • Working on market opportunity analysis tasks or workflows
  • Needing guidance, best practices, or checklists for market opportunity analysis

Do not use this skill when

  • The task is unrelated to market opportunity analysis
  • You need a different domain or tool outside this scope

Instructions

  • Clarify goals, constraints, and required inputs.
  • Apply relevant best practices and validate outcomes.
  • Provide actionable steps and verification.

What This Command Does

This command guides through an interactive market sizing process to:

  1. Define the target market and customer segments
  2. Gather relevant market data
  3. Calculate TAM using bottom-up methodology
  4. Validate with top-down analysis
  5. Narrow to SAM with appropriate filters
  6. Estimate realistic SOM (3-5 year opportunity)
  7. Present findings in a formatted report

Instructions for Claude

Sponsors

Details

Repository
github.com/sickn33/antigravity-awesome-skills
Category
Productivity & Planning
First seen
Jun 3, 2026

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