Installation
Copy the prompt below and send it to your AI assistant (e.g. Claude Code) — it will follow the instructions and install automatically.
Install the "market-sizing" skill by following the instructions at https://skill123.me/install/market-sizing.
Run in your terminal — downloads and installs to ~/.claude/skills/.
curl -fsSL https://skill123.me/install/market-sizing.sh | bash
Download the zip and extract it into your skills directory (e.g. ~/.claude/skills/), then restart your session.
⬇ Download v1.0.0 · 2 KBAbout this skill
Overview
Estimate market size using TAM, SAM, and SOM with top-down and bottom-up approaches. Use when sizing a market opportunity, estimating addressable market, preparing for investor pitches, or evaluating market entry.
Source
- Repo: https://github.com/phuryn/pm-skills
- Path: pm-market-research/skills/market-sizing
Evaluation
AI-evaluated 2026-09-03: Solid TAM/SAM/SOM methodology with top-down plus bottom-up triangulation, a summary table, and explicit instruction to cite sources and label assumptions with confidence levels. Common high-value PM task; read-only research, no safety risk.