Product Brief

Organization

emotixco

product-brief

Turn a one-sentence startup idea into a structured product brief with problem, audience, value proposition, 5-7 MVP features, 90-day metrics, risks, and a go-to-market snapshot. Use when a founder wants to write down what they are building and for whom.

Overview

Publisher	emotixco
Repository	`claude-skills-founder`
Skill name	`product-brief`
Stars	566
Forks	44
Bundled files	Instructions only
License	MIT
Links	Skill source Repository

Markdown instructions
A SKILL.md file the model loads on demand, so it only costs tokens when a request actually matches.
Works with any LLM
AI skills are plain Markdown, not provider-specific code, so this works with GPT, Claude, Gemini, Grok, or a local model.
Self-contained
Everything the model needs lives in the instructions — no extra files to sync.
Open source
Published by emotixco on GitHub. Read the source before you install it.

Installation

Install the Product Brief AI skill in TypingMind to use it with any LLM, or drop it into another agent that reads SKILL.md.

Install in TypingMind

TypingMind installs a skill straight from its GitHub folder — it reads SKILL.md, bundles the resource files, and stores the result locally.

Open the app and go to Plugins → Skills.
Choose "Install from GitHub".
Paste the skill folder URL below and confirm.
https://github.com/emotixco/claude-skills-founder/tree/main/skills/product-brief
Enable the skill in any chat where you want it available.

Plugins → Skills → Add skill → From GitHub URL, then paste the folder URL and press Continue.

Install in another agent

Any agent that reads the Agent Skills format can use this skill — copy the folder into that agent's skills directory.

Claude Code — .claude/skills

git clone --depth 1 https://github.com/emotixco/claude-skills-founder.git /tmp/claude-skills-founder
mkdir -p .claude/skills
cp -r /tmp/claude-skills-founder/skills/product-brief .claude/skills/product-brief

Restart Claude Code after copying so it picks up the new skill.

Use it in TypingMind

Enable Product Brief in any TypingMind chat and the model takes it from there. Its name and description sit in the system prompt, and the moment a request matches, the model loads the full instructions itself — you never invoke it by hand, and it costs no tokens until it is actually used.

The model loads Product Brief on its own as soon as a request matches it.

Works with any AI model

AI skills are plain Markdown instructions rather than provider-specific code, so Product Brief is not tied to the model it was written for. Install it once in TypingMind and use it with GPT-5, Claude, Gemini, Grok, DeepSeek, Mistral, Llama, or a local model you run yourself — all on your own API keys.

Loaded only when it is needed
The system prompt carries just the name and description. The instructions are fetched on the first matching request, so an idle skill costs nothing.
Switch models mid-chat
Because the skill is instructions rather than code, changing model does not break it — the next model reads the same SKILL.md.

Skill instructions

This is the SKILL.md content the model loads. Read it before installing — a skill is instructions your model will follow.

You are a product strategist. You turn a startup idea into a brief a small team can build from.

Input: $ARGUMENTS

Before you start

Read ${CLAUDE_PLUGIN_ROOT}/shared/conventions.md and follow it.

Reads: founder/facts.md, founder/validate-idea.md, founder/persona-gen.md, founder/competitor-matrix.md
Needs: the idea in one sentence
Saves to: founder/product-brief.md

Instructions

Problem statement. What specific pain does this solve? Who feels it most? How do they deal with it today?
Target audience. Name the primary audience in one specific sentence. Not "small business owners" but "solo SaaS founders under $10K MRR who spend 8+ hours a week tracking competitors by hand". If founder/persona-gen.md exists, use its primary persona. Otherwise add one line suggesting /founder:persona-gen for full personas.
Value proposition. One sentence that passes the "so what?" test. Format: "[Product] helps [audience] [achieve outcome] by [mechanism], unlike [alternative] which [limitation]."
Core features (MVP). Exactly 5-7 features. For each: name, a one-line description, and why the product can't launch without it.
Success metrics. 3-5 measurable KPIs with targets for the first 90 days. Include leading indicators, not just revenue.
Risks and assumptions. The top 3 assumptions that must be true for this to work, and how to test each one for under $500 in under 2 weeks.
Go-to-market snapshot. The first 3 channels to try, an estimated CAC range for each (marked as an estimate unless sourced), and one growth tactic specific to this product.

Rules

Be specific and opinionated. Generic advice is useless.
Use numbers, not words like "some" or "many".
If the idea is vague, make reasonable assumptions and state them.
Output clean markdown with headers and bullets.
Keep total output under 1500 words.

Frequently asked questions

What does the Product Brief AI skill do?

Why use Product Brief on TypingMind?

Because you install it once and use it with any model. Product Brief is plain Markdown rather than provider-specific code, so the same skill runs on GPT-5, Claude, Gemini, Grok, or a local model — and you can switch model mid-chat without it breaking. TypingMind runs on your own API keys, so you pay providers directly instead of a per-seat subscription, and your skills and chats stay in your own storage.

How do I install Product Brief in TypingMind?

Open Plugins → Skills → Install from GitHub in TypingMind and paste https://github.com/emotixco/claude-skills-founder/tree/main/skills/product-brief. TypingMind reads its SKILL.md and installs it as a skill you can enable per chat.

Which AI models can use Product Brief?

Any model you connect in TypingMind. AI skills are plain Markdown instructions rather than provider-specific code, so GPT, Claude, Gemini, Grok, and local models can all load this skill when a request matches it.

How many AI models can I use with Product Brief?

As many as you like. As long as a model supports skills, you can use Product Brief with it — GPT, Claude, Gemini, Grok, DeepSeek, Mistral, Llama and more — all on TypingMind with your own API keys.

Is the Product Brief AI skill free?

Yes. It is published on GitHub by emotixco under the MIT license. You only pay your own AI provider for the tokens you use.

What are AI skills?

An AI skill is a reusable instruction bundle that teaches an AI model how to do one specific task. It follows the open Agent Skills format: a SKILL.md file with a name and description, plus any scripts, templates or reference files the model may need. The model reads the instructions only when your request matches the skill, so an installed skill costs nothing until it is used.

How are AI skills different from plugins or MCP servers?

A plugin or MCP server gives a model new tools to call — code that runs somewhere and returns a result. An AI skill gives the model knowledge and process instead: how to approach a task, which steps to follow, what good output looks like. Skills are plain Markdown, so they need no server, no API key and no runtime, and they work with any model.

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Overview

Installation

Install in TypingMind

Install in another agent

Use it in TypingMind

Works with any AI model

Skill instructions

Before you start

Instructions

Rules

Frequently asked questions

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