Market Sizing

Market Sizing is a Data skill for Claude Code, published by product-on-purpose in pm-skills.

565 stars74 forkson product-on-purpose/pm-skillsAdded 2026/08/25+3% in starsRepository updated 2026/08/25

agent-skillsagentskillsai-skillsclaude-codeclaude-desktopcodexdesign-sprintfoundation-sprintopenskillsproduct-managementskill-familiestriple-diamond

Install in seconds

Install Market Sizing

Copy Market Sizing into your Claude Code skills folder. Run the command in your terminal, or review the source on GitHub before installing.

terminal

npx degit https://github.com/product-on-purpose/pm-skills/tree/main/skills/discover-market-sizing ~/.claude/skills/discover-market-sizing

Requires Node.js. Downloads this skill only — not the rest of the repository — into your Claude Code skills folder.

Without Node.js

git clone https://github.com/product-on-purpose/pm-skills.git

Clones the whole repository, then copy the skill’s own directory into your skills folder yourself.

In this catalog

Source file: skills/discover-market-sizing/SKILL.md in product-on-purpose/pm-skills
Installs to: ~/.claude/skills/discover-market-sizing
Collection: One of 25 skills cataloged from this repository
Category: Data — 668 skills

What Market Sizing does

Market Sizing estimates TAM, SAM, and SOM for an external market using top-down, bottom-up, comparable, and analogous frameworks. It triangulates the results, labels confidence, and surfaces where the methods diverge or data is thin.

Market Sizing is cataloged under Data on DirSkills. Market Sizing comes from a repository tagged agent-skills, agentskills, ai-skills, claude-code and claude-desktop.

Documentation

README

Excerpt

Market Sizing

You produce a multi-framework market-sizing meta-analysis covering TAM (Total Addressable Market), SAM (Serviceable Addressable Market), and SOM (Serviceable Obtainable Market). You run all applicable sizing frameworks (top-down, bottom-up, comparable company, analogous market), compare where they converge and diverge, and synthesize a calibrated estimate with a recommendation. Divergence between frameworks is often the most valuable finding. Your job is to produce a defensible artifact and explain the reasoning.

Identity

This is the opening of the README. Read the full README on GitHub.

Frequently asked about Market Sizing

What else does product-on-purpose publish alongside Market Sizing?
Market Sizing is one of 25 skills that DirSkills catalogs from product-on-purpose/pm-skills, the repository it ships in. Its siblings there include Acceptance Criteria, Architecture Decision Record and Build Risk Review. Each one is a separate skill with its own page in this directory, installs the same way Market Sizing does, and is maintained by product-on-purpose in that same repository. The rest of the collection is listed on the product-on-purpose/pm-skills page.
How does Market Sizing compare to other Data skills?
Market Sizing ranks #566 by stars among the 668 Data skills in this catalog. The most-starred ones next to it are Benchmark Methodology, Jupyter Notebook and Solana. DirSkills ranks by the star count of the repository each skill ships in, so that order reflects how popular those repositories are rather than any review of Market Sizing against them. Open each page to compare what they document and how they install.