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Market Sizing

Estimate market or opportunity size with transparent assumptions, ranges, and sensitivity tests

Source Download skill
Repository
XiaomiMiMo/MiMo-Code
Stars
13,743
Licence
MIT
Files
2 files

What it does

When installed, the agent approaches market-size questions (TAM/SAM/SOM, opportunity scale, comparing possible markets) in a structured way: it defines the market boundary, picks a sizing method, gathers evidence for each input, and separates sourced facts from assumptions. It shows its calculation chain, tests which assumptions move the answer most, and reports a range with the next checks that would improve confidence. It can also hand off to other skills for charts, notebooks, spreadsheets, or a written report.

Great for

  • Analysts or founders who need a defensible TAM/SAM/SOM estimate with stated assumptions
  • Teams with a data warehouse or BI tools who want the estimate built from their own connected data plus public benchmarks
  • Students learning top-down versus bottom-up market modelling

Skip it if

  • Quick back-of-envelope guesses where a full model and report are overkill
  • Decisions that rely on sources the skill cannot reach: it is designed to stop and ask for a required source rather than substitute a weaker one, so it may pause often
  • Anyone expecting verified market data: estimates depend on the quality of the inputs and assumptions supplied

Try asking

  • “Estimate the TAM, SAM and SOM for a B2B invoicing tool in Western Europe, with a sensitivity table”
  • “Compare the size of three possible expansion markets and tell me which is most promising, with ranges”
  • “Build a bottom-up sizing of the number of dental clinics that could use our scheduling software”
Step-by-step guide: how to use Market SizingInstall, first run, examples, tips and FAQs

Install in 3 steps

  1. 1

    Download the skill

    The ZIP contains the 2 original files, the MIT licence and an attribution note.

    market-sizing.zip
  2. 2

    Add it to your agent

    Claude Code (all projects)

    mkdir -p ~/.claude/skills && unzip market-sizing.zip -d ~/.claude/skills/

    Claude Code / Agent SDK (this project only)

    mkdir -p .claude/skills && unzip market-sizing.zip -d .claude/skills/

    Claude apps (web/desktop): Settings → Capabilities → Skills → Upload skill, and choose the ZIP.

  3. 3

    Ask for the task

    No special command needed — the agent reads the skill's description and loads it when your request matches. Try one of the prompts above.

Get better results

  • Name the sources you trust (your warehouse tables, specific public reports) up front so the agent starts from them.
  • State the unit and time horizon clearly, such as annual revenue in USD for 2026, to avoid ambiguous estimates.
  • Ask for the sensitivity analysis explicitly and check which assumptions dominate the result before relying on the number.

What's inside

  • agents/openai.yaml
  • SKILL.md

Redistributed unmodified from XiaomiMiMo/MiMo-Code under the MIT licence. The assessment was drafted with AI from the skill's files on 2026-10-29. Skills can instruct your agent to run code — read SKILL.md and any scripts before installing.