Marketing Os
Yuzzyuk/marketing-os
A complete marketing department in one skill. An agent skill from Yuzzyuk/marketing-os.
Write a developer value proposition that is specific, provable, and free of puffery.
Install Value Prop That Converts
$ npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AIDevGTM/gtm-cofounder value-prop-that-converts --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/AIDevGTM/gtm-cofounder.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/06-value-prop-that-converts .claude/skills/value-prop-that-converts && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "value-prop-that-converts" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-converts into .claude/skills/value-prop-that-converts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "value-prop-that-converts", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-convertsType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AIDevGTM/gtm-cofounder value-prop-that-converts --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AIDevGTM/gtm-cofounder.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/06-value-prop-that-converts .agents/skills/value-prop-that-converts && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "value-prop-that-converts" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-converts into .agents/skills/value-prop-that-converts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "value-prop-that-converts", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AIDevGTM/gtm-cofounder value-prop-that-converts --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AIDevGTM/gtm-cofounder.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/06-value-prop-that-converts .cursor/skills/value-prop-that-converts && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "value-prop-that-converts" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-converts into .cursor/skills/value-prop-that-converts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "value-prop-that-converts", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/AIDevGTM/gtm-cofounder.git --path skills/06-value-prop-that-converts--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AIDevGTM/gtm-cofounder value-prop-that-converts --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AIDevGTM/gtm-cofounder.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/06-value-prop-that-converts .gemini/skills/value-prop-that-converts && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "value-prop-that-converts" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-converts into .gemini/skills/value-prop-that-converts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "value-prop-that-converts", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install AIDevGTM/gtm-cofounder value-prop-that-convertsInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/AIDevGTM/gtm-cofounder.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/06-value-prop-that-converts .github/skills/value-prop-that-converts && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "value-prop-that-converts" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-converts into .github/skills/value-prop-that-converts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "value-prop-that-converts", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install AIDevGTM/gtm-cofounder value-prop-that-converts --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/AIDevGTM/gtm-cofounder.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/06-value-prop-that-converts .opencode/skills/value-prop-that-converts && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "value-prop-that-converts" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/06-value-prop-that-converts into .opencode/skills/value-prop-that-converts/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "value-prop-that-converts", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
value-prop-that-converts- GitHub stars
- 310
- Token cost
- ~1.1k tokens
- SKILL.md length
- 563 words
- Files
- 1
- Skills in repo
- 19
- Repo updated
- First seen
- Licence
- MIT
At a glance
Write a developer value proposition that is specific, provable, and free of puffery.
- Works in 6 steps: Never say "better." Say better how, by… → Time savings must be specific. ❌ "saves… → Two kinds of time, speak to both → …
- The messaging leans on powerful
- SKILL.md covers The core idea, Framework: the value-prop…, Framework: the three… and The puffery detector: flag and…, plus 3 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Value Prop That Converts is an agent skill from AIDevGTM/gtm-cofounder. Write a developer value proposition that is specific, provable, and free of puffery. Use when the messaging leans on "powerful," "better," "seamless," or "best-in-class," when claims have no proof, or when the same line is supposed to reach both the developer and the buyer.
Its SKILL.md is about 1.1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.
It sits in Marketing & SEO, covering Positioning and messaging. The repository describes itself as: 1 Product of The Day @ Product Hunt. The GTM co-founder you don't have. Open-source GTM Agent Skills for developer tools and AI products, for founders, GTM hires, and founding… The licence is MIT.
When your agent uses it
- The messaging leans on powerful
- Claims have no proof
- The same line is supposed to reach both the developer and the buyer
Example prompts
- “powerful,”
- “better,”
- “seamless,”
- “/value-prop-that-converts”
Workflow steps
6 steps, taken from the first numbered list in SKILL.md.
- Never say "better." Say better how, by how much, versus what.
- Time savings must be specific. ❌ "saves developer time" · ✅ "8× faster builds, 2 hrs → 15 min" (attributed).
- Two kinds of time, speak to both
- Every claim needs proof. A demo is the weakest proof (ideal conditions). An attributed testimonial (name + title + company + number) is…
- Sell the category, not the solution. Talk about the problem and the need for "a tool like this"; don't proactively pitch features; it…
- Never "pleased to announce" / "excited to share." No one cares how you feel.
What it can do on your machine
Read from SKILL.md and the folder at commit 7e89e8a. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
Links to these hosts (documentation or services it may open):
linkedin.com
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Value Prop That Converts loads about 1.1k tokens when it runs. Until then it costs about 75 tokens; SKILL.md has 563 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from AIDevGTM/gtm-cofounder at commit 7e89e8a, republished under its MIT licence (© AIDevGTM). 563 words, ~1,081 tokens.
Download SKILL.mdSave it as
.claude/skills/value-prop-that-converts/SKILL.md (or your agent's skills folder).- name
- value-prop-that-converts
- description
- Write a developer value proposition that is specific, provable, and free of puffery. Use when the messaging leans on "powerful," "better," "seamless," or "best-in-class," when claims have no proof, or when the same line is supposed to reach both the developer and the buyer.
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)
- Never say "better." Say better how, by how much, versus what.
- Time savings must be specific. ❌ "saves developer time" · ✅ "8× faster builds, 2 hrs → 15 min" (attributed).
- 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.
- 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.
- 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.
- 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.
Show full SKILL.md (248 more words)Show less
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 resultSpend 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). If you can't tell whether your value prop actually lands with a buyer, get a human read. Reach out to me on LinkedIn.
© AIDevGTM, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/06-value-prop-that-converts of AIDevGTM/gtm-cofounder.
Open the folder on GitHubat commit 7e89e8a
Compare with similar skills
Value Prop That Converts next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Value Prop That Converts this skillAIDevGTM/gtm-cofounder | 310 | — | ~1.1k | Automated safety check: Pass | MIT | |
| Marketing OsYuzzyuk/marketing-os | 540 | — | ~2.5k | Automated safety check: Pass | MIT | |
| Revenue Centric Designheliocosta-dev/revenue-centric-design | 740 | — | ~1.6k | Automated safety check: Pass | Custom licence | |
| Startup Positioningferdinandobons/startup-skill | 1.2k | — | ~4.6k | Automated safety check: Pass | MIT | |
| Stanley Druckenmiller Investmenttradermonty/claude-trading-skills | 3k | 1 repos | ~2k | Automated safety check: Pass | MIT | |
| B2b Playbookweilun88313/B2B-Playbook | 203 | — | ~3.1k | Automated safety check: Pass | Proprietary |
Similar skills
Revenue Centric Design
heliocosta-dev/revenue-centric-design
Playbook for designing SaaS and startup products that convert, retain, and monetize — landing pages & CRO, checkout & forms, onboarding/activation, churn reduction, pricing psychology, dashboards…
Startup Positioning
ferdinandobons/startup-skill
Market positioning strategy using the April Dunford framework, enriched with JTBD discovery, Moore positioning statement, and Neumeier's Onliness Test.
Stanley Druckenmiller Investment
tradermonty/claude-trading-skills
Druckenmiller Strategy Synthesizer - Integrates 8 upstream skill outputs (Market Breadth, Uptrend Analysis, Market Top, Macro Regime, FTD Detector, VCP Screener, Theme Detector, CANSLIM Screener)…
B2b Playbook
weilun88313/B2B-Playbook
Turn B2B marketing work into evidence-aware outputs using market, positioning, demand, account-program, lifecycle, and tool-selection guidance.
Research Brand
onvoyage-ai/gtm-engineer-skills
Researches a company from its URL and produces a Brand DNA file covering positioning, audience, competitors, voice, and messaging.
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Related
Categories
Questions about Value Prop That Converts
What does Value Prop That Converts do?
Write a developer value proposition that is specific, provable, and free of puffery. Value Prop That Converts is an agent skill from AIDevGTM/gtm-cofounder. Write a developer value proposition that is specific, provable, and free of puffery.
When should I use Value Prop That Converts?
Value Prop That Converts fits situations like: the messaging leans on powerful; claims have no proof; the same line is supposed to reach both the developer and the buyer.
How do I install Value Prop That Converts in Claude Code?
Run `npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a claude-code`. Or copy the skill folder (skills/06-value-prop-that-converts in AIDevGTM/gtm-cofounder) into .claude/skills/value-prop-that-converts in your project. Claude Code loads it when a task matches its description.
How do I install Value Prop That Converts in Codex?
Run `npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a codex`. Or copy the skill folder (skills/06-value-prop-that-converts in AIDevGTM/gtm-cofounder) into .agents/skills/value-prop-that-converts in your project. Codex loads it when a task matches its description.
Can I use Value Prop That Converts in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add AIDevGTM/gtm-cofounder --skill value-prop-that-converts -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/value-prop-that-converts, .gemini/skills/value-prop-that-converts, .github/skills/value-prop-that-converts and .opencode/skills/value-prop-that-converts in your project.
What does Value Prop That Converts need to run?
SKILL.md names no scripts, command-line tools or credentials: Value Prop That Converts is instructions for the agent only.
Does Value Prop That Converts access the network?
SKILL.md names 1 domain. As links in the text: linkedin.com. This is read from the text; nothing was executed.
Is Value Prop That Converts safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Value Prop That Converts use?
Value Prop That Converts is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Value Prop That Converts use?
About 1.1k tokens (SKILL.md is roughly 4.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Value Prop That Converts?
Skills that share tags, products or a category with Value Prop That Converts: Marketing Os (Yuzzyuk/marketing-os, 540 stars), Revenue Centric Design (heliocosta-dev/revenue-centric-design, 740 stars), Startup Positioning (ferdinandobons/startup-skill, 1.2k stars) and Stanley Druckenmiller Investment (tradermonty/claude-trading-skills, 3k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Value Prop That Converts?
AIDevGTM (a GitHub user) maintains it in AIDevGTM/gtm-cofounder, which has 310 GitHub stars. The repository holds 19 skills in this directory. The repository was last updated on October 5, 2026.
Source: AIDevGTM/gtm-cofounder on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.