Market Size

What it does

When your agent uses it

• Tasks that involve Market sizing
• Tasks that involve Fundraising and pitch decks

Example prompts

• “/venture-capital-intelligence:market-size”
• “size this market”
• “what is the TAM for X”
• “/market-size”

Requirements

• Python 3
• Node.js

Workflow steps

6 steps, taken from the step headings in SKILL.md.

1. 1DEFINE THE MARKET
2. 2CLAUDE: WEB SEARCH FOR MARKET DATA
3. 3CLAUDE: PREPARE SIZING INPUTS
4. 4PYTHON: COMPUTE TAM/SAM/SOM
5. 5CLAUDE: TECH STACK ANALYSIS
6. 6PYTHON: FORMAT FINAL REPORT

What it can do on your machine

Read from SKILL.md and the folder at commit 616deb5. It shows what the files ask for, not the result of running them.

• Tool permissions

  Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

  From allowed-tools in the SKILL.md frontmatter.

• Runs code

  Ships 2 files in scripts/ (Python), which the agent can run.

  Shell commands in SKILL.md call:

  • python

  From the folder's file list and the shell code blocks in SKILL.md.

• Network

  No URLs in SKILL.md.

  From URLs in SKILL.md, links to its own repository left out.

• Credentials

  Names no API keys, tokens, secrets or passwords.

  From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Market Size loads about 1.2k tokens when it runs. Until then it costs about 183 tokens; SKILL.md has 401 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it

~183

When it runs · the whole SKILL.md, loaded when a task matches

~1.2k

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); the scripts in this folder are not scanned.

SKILL.md

The full file from davepoon/buildwithclaude at commit 616deb5, republished under its MIT licence (© davepoon). 401 words, ~1,188 tokens.

name

market-size

description

Run TAM/SAM/SOM market sizing with top-down and bottom-up methods, competitive landscape, and tech stack analysis. Triggered by: "/venture-capital-intelligence:market-size", "size this market", "what is the TAM for X", "market sizing analysis", "competitive landscape for X", "who are the competitors", "TAM SAM SOM for X", "market opportunity analysis", "how big is this market", "is this market big enough", "what's the addressable market", "total addressable market for X", "how large is the opportunity", "market research for X", "how saturated is this market", "market size estimate", "go-to-market sizing", "what is the serviceable market". Claude Code only. Requires Python 3.x. Uses web search for market data.

category

business-finance

platform

claude-code

requires

python3

{
  "company": "",
  "market_category": "",
  "geography": "Global",
  "target_customer": "",
  "business_model": "B2B SaaS",
  "price_per_customer_annual": 0,
  "top_down": {
    "total_market_size_usd": 0,
    "addressable_fraction": 0.0,
    "obtainable_fraction": 0.0,
    "cagr_pct": 0.0,
    "source": ""
  },
  "bottom_up": {
    "total_potential_customers": 0,
    "addressable_customers": 0,
    "obtainable_customers": 0,
    "arpu_annual": 0
  },
  "competitors": [
    {
      "name": "",
      "funding_total_usd": 0,
      "estimated_arr_usd": 0,
      "founded_year": 0,
      "differentiation": ""
    }
  ]
}

© davepoon, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

SKILL.md and 2 other files (scripts) in plugins/venture-capital-intelligence/skills/market-size of davepoon/buildwithclaude.

• SKILL.md
• scripts/market_formatter.py
• scripts/tam_calculator.py

Open the folder on GitHubat commit 616deb5