The value prop that converts

> "Better" is sloppy thinking. Better how, along what dimension, by how much, proven by whom? Developers test every claim you make. Give them numbers or give them nothing.

Use this when: your value prop contains puffery, your claims aren't attributed, or you're trying to make one sentence do the job of two audiences.

The core idea

Developers have a finely tuned BS detector and they will verify you. Specificity is credibility. Every strong dev value prop is: specific + provable + spoken in their language.

Framework: the value-prop rules (Frankl)

1. Never say "better." Say better how, by how much, versus what.
2. Time savings must be specific. ❌ "saves developer time" · ✅ "8× faster builds, 2 hrs → 15 min" (attributed).
3. Two kinds of time, speak to both:

• Chronos (Alpha Dev): clock hours saved per week.
• Kairos (Empowered CTO): calendar time, weeks off a release cycle, competitive edge.
• The same product must land both. "Release fast or die" worked for developer and CTO.

1. Every claim needs proof. A demo is the weakest proof (ideal conditions). An attributed testimonial (name + title + company + number) is the strongest. Anonymous quotes are assumed invented.
2. Sell the category, not the solution. Talk about the problem and the need for "a tool like this"; don't proactively pitch features; it trips developer defenses.
3. Never "pleased to announce" / "excited to share." No one cares how you feel.

Framework: the three dimensions of a dev value prop (Czakon)

A complete value prop answers all three, fast:

• What is it?: category / known-incumbent comparison / plain statement ("a Datadog alternative," "CI for monorepos").
• For whom / what use case?: the ICP and the job (from who-is-this-for).
• Why you over the 10 alternatives?: the legitimate, provable reason to exist.

Headline = what is it. Subhead = for whom / what job. For dev tools, weight the how over the why. Developers often already know why they hurt.

The puffery detector: flag and replace

| Banned | Why devs discount it | Replace with | |---|---|---| | Powerful | everyone claims it | the specific thing it does | | Easy to use | they'll test it in 60s | time-to-value with a number | | Best-in-class | says who, by what metric | the source or the number | | Seamless integration | unprovable in the abstract | named integrations + logos | | Industry-leading | says nothing | real share / user counts | | Platform | hears: integration headache | the one job it does | | Revolutionary / cutting-edge | pure air | name the actual technology |

Proof hierarchy (weakest → strongest)

your claim  <  a demo  <  a benchmark you ran  <  a named user's attributed result

Spend your effort at the right end.

Mistakes that look reasonable

• Adjective stacking: "powerful, seamless, intuitive." Three words, zero information.
• One line, two audiences: a Chronos-only message loses the buyer; a Kairos-only message loses the adopter.
• Unattributed social proof: "developers love us." Which developers? At which company?
• Leading with the why: for most dev tools the pain is known; lead with the how and the proof.

Your next 30 minutes

• ] Run your homepage copy through the puffery table. Delete or replace every hit.
• ] Rewrite your #1 claim with a number and an attribution (even a single named user).
• ] Write one Chronos line (hours/week) and one Kairos line (weeks/release). Make sure both exist.
• ] State your value prop as the three dimensions: what · for whom · why you.

Built from real dev-tool GTM experience, with frameworks from Adam Frankl (The Developer-Facing Startup) and Jakub Czakon (markepear.dev). When a framework can't make the call, that's what a human is for: The DevTool GTM Company.