Estimate the Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM) for a product. Includes both top-down and bottom-up estimation approaches, growth projections, and key assumptions to validate.
Works with
AI-first code editor with Composer
Before installing skills in Cursor, ensure your development environment meets these requirements:
node --versionmarket-sizingExecute the skills CLI command in your project's root directory to begin installation:
Fetches market-sizing from phuryn/pm-skills and configures it for Cursor.
The CLI shows a list of agents. Use arrow keys and space to select Cursor:
Confirm successful installation by checking the skill directory location:
Restart Cursor to activate market-sizing. Access via /market-sizing in your agent's command palette.
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Create detailed user stories, acceptance criteria, and feature specs
Example
Generate user stories for 'password reset feature' with acceptance criteria, edge cases, and test scenarios
Reduce spec writing time by 50%, ensure comprehensive coverage
Research competitors, compare features, identify gaps
Example
Analyze 5 competitor products, create feature comparison matrix, suggest differentiation opportunities
Complete competitive research in 2 hours instead of 2 days
Evaluate features using frameworks (RICE, ICE, Kano) and create prioritized backlogs
Example
Score 20 feature ideas using RICE framework, generate prioritized roadmap with rationale
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Estimate the Total Addressable Market (TAM), Serviceable Addressable Market (SAM), and Serviceable Obtainable Market (SOM) for a product. Includes both top-down and bottom-up estimation approaches, growth projections, and key assumptions to validate.
You are a strategic market analyst specializing in market sizing, opportunity assessment, and growth forecasting.
Your task is to estimate the market size for $ARGUMENTS within the specified market constraints (geography, industry vertical, customer type, etc.).
If the user provides market research, industry reports, financial data, or competitor information, read and analyze them directly. Use web search to find current market data, industry reports, and growth projections.
Market Definition
TAM (Total Addressable Market)
SAM (Serviceable Addressable Market)
SOM (Serviceable Obtainable Market)
Market Summary Table
| Metric | Current Estimate | 2-3 Year Projection |
|---|---|---|
| TAM | ||
| SAM | ||
| SOM |
Growth Drivers & Trends
Key Assumptions & Risks
Make data-driven prioritization decisions faster
Draft PRDs, status updates, and stakeholder presentations
Example
Create executive summary of Q3 roadmap, monthly progress report, feature launch announcement
Save 3-5 hours/week on communication overhead
Prerequisites
Time Estimate
30-60 minutes to see productivity improvements
Steps
Common Pitfalls
✓ Do
✗ Don't
💡 Pro Tips
✓ Use when
Use for user story writing, competitive research, roadmap prioritization, stakeholder communication, and PRD drafting. Best for reducing repetitive documentation and research work.
✗ Avoid when
Avoid for strategic product vision (requires deep customer empathy), pricing decisions (needs market and financial expertise), or when face-to-face customer discovery is more valuable than speed.
mattpocock/skills
parcadei/continuous-claude-v3
cursor/plugins
ailabs-393/ai-labs-claude-skills
ailabs-393/ai-labs-claude-skills
pproenca/dot-skills
We added market-sizing from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
market-sizing has been reliable in day-to-day use. Documentation quality is above average for community skills.
market-sizing reduced setup friction for our internal harness; good balance of opinion and flexibility.
We added market-sizing from the explainx registry; install was straightforward and the SKILL.md answered most questions upfront.
market-sizing reduced setup friction for our internal harness; good balance of opinion and flexibility.
Solid pick for teams standardizing on skills: market-sizing is focused, and the summary matches what you get after install.
I recommend market-sizing for anyone iterating fast on agent tooling; clear intent and a small, reviewable surface area.
Keeps context tight: market-sizing is the kind of skill you can hand to a new teammate without a long onboarding doc.
market-sizing is among the better-maintained entries we tried; worth keeping pinned for repeat workflows.
market-sizing reduced setup friction for our internal harness; good balance of opinion and flexibility.
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