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emotixco

Product Brief skill

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.

$npx skills add emotixco/claude-skills-founder --skill product-brief
View this skill on GitHubemotixco/claude-skills-founder/skills/product-brief/SKILL.md
Pack stars
814
Pack installs
923
Alyn Score
50/99
Updated
8 days ago
License
MIT
– views – installs via Alyn

emotixco

Product Brief

Install Product Brief

Pick your agent. Every command is ready to paste.

$npx skills add emotixco/claude-skills-founder --skill product-brief

The open skills CLI detects your agents (Claude Code, Cursor, Codex and 70+ more) and installs to the right folder. Add -g to install globally.

01

Install it

Run the command above, or upload the folder in Claude.

02

Ask naturally

Describe the task. Your agent loads product-brief when the request matches its description.

03

Name it if needed

If it does not trigger, say “use the product-brief skill”. In Codex, type $product-brief.

The skill itself

SKILL.md

FolderGitHub

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

  1. Problem statement. What specific pain does this solve? Who feels it most? How do they deal with it today?

  2. 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.

  3. Value proposition. One sentence that passes the "so what?" test. Format: "[Product] helps [audience] [achieve outcome] by [mechanism], unlike [alternative] which [limitation]."

  4. Core features (MVP). Exactly 5-7 features. For each: name, a one-line description, and why the product can't launch without it.

  5. Success metrics. 3-5 measurable KPIs with targets for the first 90 days. Include leading indicators, not just revenue.

  6. 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.

  7. 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.

Tips for Product Brief

  • • Start a fresh session after installing so your agent picks up the new skill.
  • • It is part of a pack with 14 skills. Install only the ones you need with --skill to keep triggers precise.
  • • If two skills overlap, mention the one you want by name.

Questions about Product Brief

What does the Product Brief skill do?

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.

How do I install Product Brief?

Run "npx skills add emotixco/claude-skills-founder --skill product-brief" in your project. The skills CLI installs it for Claude Code, Cursor, Codex and 70+ other agents. In Claude on the web, upload the skill folder as a ZIP under Customize > Skills.

Does Product Brief work in Cursor and Codex?

Yes. Product Brief uses the open SKILL.md format, so it works in Claude Code, Claude, Cursor, OpenAI Codex, Gemini CLI, GitHub Copilot and other agents that support agent skills.

Is Product Brief free?

Product Brief is open source on GitHub under the MIT license. It is free to install; check the license before commercial use.

Who made Product Brief?

Product Brief is published by emotixco in the emotixco/claude-skills-founder repository, together with 13 other skills.

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