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value-proposition-builder

Use this skill when you need a sharp B2B value proposition: "write our value prop", "our messaging is generic", "how do we describe what we do", "homepage headline", "one-liner for outbound". Builds the value proposition from the customer's problem, the alternatives they use today and the outcome only you deliver, tests it against competitors and real buyer language, and outputs a one-liner, a short paragraph, three supporting pillars with proof, and versions for the homepage, cold email and sales calls.

日本語の概要は準備中です。原文の説明を表示しています。

prosyo-ai/gtm-skillスター 11(GitHub 11 + cccskills 0)

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SKILL.md（原文）

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Use this when the company cannot say what it does in a sentence that makes a buyer lean in. It produces one value proposition and the versions each channel needs.

Inputs

The product and who uses it.
Evidence: customer quotes, win reasons, reviews, the words buyers use on calls.
Alternatives: competitors, spreadsheets, agencies, hiring, doing nothing.

The play

1. Start with the alternative, not the product

What does the buyer do today without you? The value proposition is the difference between that and life with you. Read references/value-prop-canvas.md for the canvas and a worked example.

2. Find the outcome only you deliver

List the outcomes customers mention. Strike every outcome a competitor could claim with a straight face. What is left is your positioning; if nothing is left, the differentiation is in the how (speed, simplicity, a segment you serve better), so say that.

3. Write the one-liner

Formula options:

"<Outcome> for <who>, without <the pain of the alternative>."
"<Product> helps <who> <do the job> so they can <outcome>."
"The <category> for <specific who>."

Test: a buyer should be able to repeat it to a colleague after hearing it once.

4. Back it with three pillars

Each pillar: a benefit headline, how it works in one line, and proof (a number, a customer, a demo moment).

5. Write channel versions

Homepage: headline (under 10 words), subheadline (one sentence), three pillars.
Cold email: one sentence, in the reader's problem language.
Sales call: a 30-second spoken version.
LinkedIn headline or bio.

Output format

One-liner: <...>
Paragraph (40-60 words): <...>
Pillars: <benefit - how - proof> x3
Homepage: H1 / subhead
Cold email line: <...>
30-second spoken version: <...>
What we deliberately do not claim: <...>

What good looks like

Uses customer words, not internal jargon.
Specific enough that a competitor could not use it unchanged.
The proof is real and checkable.
The common mistake is a feature list dressed as a benefit ("AI-powered, all-in-one platform"), which describes the product and says nothing about the buyer.

Rules

MUST ground every claim in customer evidence or verifiable product facts.
MUST name the alternative the buyer uses today.
NEVER use superlatives you cannot prove ("best", "leading", "#1").

Example prompts

"Write our value proposition. We sell scheduling software to multi-location dental groups."
"Our homepage headline is 'The all-in-one AI platform'. Fix it using these customer quotes."
"Give me a one-liner for cold emails to CFOs."

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日本語の概要は準備中です。原文の説明を表示しています。