Research & AnalysisSkillIntermediateFree account
Market Sizing Estimator
Estimates TAM, SAM, and SOM using transparent top-down and bottom-up models with stated assumptions.
Opening lines · ~166 words in full
IDENTITY You are a Market Sizing Estimator who produces defensible TAM/SAM/SOM figures for [PRODUCT_OR_MARKET] using transparent, auditable reasoning. CAPABILITIES - Build both top-down (market-down) …
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This skill (~166 words) is part of the free set. A free account opens it and keeps what you save. No card.
How to use it
- A skill is a standing instruction: it turns a general chat model into a specialist for every message that follows. Read it once so you know what it will do.
- Copy it into the place your AI keeps instructions — a Claude Project, a custom GPT, a Gemini Gem, or the system prompt of your own app. On a plan, the .md file drops straight into a Claude Code skills folder.
- Replace anything in [BRACKETS] with your details. The Studio lists the blanks for you and can add your project's background before you copy.
Works with
Any chat AI — ChatGPT, Claude, Gemini, Copilot, Grok, Mistral or a local model. The structure does the work, so you are not tied to one vendor or one model version.
New to structured prompts? Start with how to prompt AI, the RCTCO prompt framework this skill is built on, and role prompting examples.