Startup Design
ferdinandobons/startup-skill
Design, validate, and plan a startup from scratch. An agent skill from ferdinandobons/startup-skill.
Get the first 50 real users through channels the user's ICP already uses.
Install First 50 Users
$ npx skills add AIDevGTM/gtm-cofounder --skill first-50-users -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install AIDevGTM/gtm-cofounder first-50-users --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/09-first-50-users .claude/skills/first-50-users && 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 "first-50-users" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/09-first-50-users into .claude/skills/first-50-users/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-50-users", 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/09-first-50-usersType 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 first-50-users -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install AIDevGTM/gtm-cofounder first-50-users --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/09-first-50-users .agents/skills/first-50-users && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "first-50-users" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/09-first-50-users into .agents/skills/first-50-users/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-50-users", 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 first-50-users -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install AIDevGTM/gtm-cofounder first-50-users --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/09-first-50-users .cursor/skills/first-50-users && 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 "first-50-users" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/09-first-50-users into .cursor/skills/first-50-users/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-50-users", 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/09-first-50-users--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 first-50-users -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install AIDevGTM/gtm-cofounder first-50-users --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/09-first-50-users .gemini/skills/first-50-users && 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 "first-50-users" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/09-first-50-users into .gemini/skills/first-50-users/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-50-users", 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 first-50-usersInstalls 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 first-50-users -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/09-first-50-users .github/skills/first-50-users && 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 "first-50-users" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/09-first-50-users into .github/skills/first-50-users/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-50-users", 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 first-50-users -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 first-50-users --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/09-first-50-users .opencode/skills/first-50-users && 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 "first-50-users" agent skill from https://github.com/AIDevGTM/gtm-cofounder/tree/main/skills/09-first-50-users into .opencode/skills/first-50-users/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "first-50-users", 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
first-50-users- GitHub stars
- 311
- Token cost
- ~977 tokens
- SKILL.md length
- 513 words
- Files
- 1
- Skills in repo
- 19
- Repo updated
- First seen
- Licence
- MIT
At a glance
Get the first 50 real users through channels the user's ICP already uses.
- The product shipped and nobody came
- SKILL.md covers The core idea, Framework: the top of the…, Framework: channels by stage… and How to pick the channel (don't…, plus 2 more sections
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
- The user is posting more with no result
What it does
First 50 Users is an agent skill from AIDevGTM/gtm-cofounder. Get the first 50 real users through channels the user's ICP already uses. Use when the product shipped and nobody came, the user is "posting more" with no result, or is reaching for paid ads before product-market fit.
Its SKILL.md is about 980 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 Product strategy, Paid advertising and Go-to-market strategy. 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 product shipped and nobody came
- The user is posting more with no result
- Is reaching for paid ads before product-market fit
Example prompts
- “posting more”
- “/first-50-users”
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
First 50 Users loads about 977 tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 513 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). 513 words, ~977 tokens.
Download SKILL.mdSave it as
.claude/skills/first-50-users/SKILL.md (or your agent's skills folder).- name
- first-50-users
- description
- Get the first 50 real users through channels the user's ICP already uses. Use when the product shipped and nobody came, the user is "posting more" with no result, or is reaching for paid ads before product-market fit.
Your first 50 users
You don't get your first 50 users by posting more. You get them by going where your users already discover tools, and, at the start, by doing things that don't scale.
Use this when: you launched to silence, you're spraying every channel hoping one works, or you're about to buy ads to fix a problem ads can't fix.
The core idea
Every developer audience has an existing technology-discovery loop: the specific places they already go to find new tools. Your job isn't to invent demand; it's to position yourself inside that loop. And your first cohort is hand-to-hand: the TAB members from talk-to-users are your first users.
Framework: the top of the DREAM funnel (Frankl)
- Discovery: be where developers look: the communities, newsletters, influencers, and searches your ICP already uses. Metric: unique humans, not pageviews.
- Research: give the interested dev a next step before they forget you: newsletter, Discord, free tier, docs. Developers can sit in Research for months, so sustain the relationship.
Then Evaluation decides everything (see know-if-its-working): can a new dev get value over a weekend, from docs and Stack Overflow, with no support call? If not, more traffic just fills a leaky bucket.
Framework: channels by stage (Czakon)
Pre-PMF (you are here for the first 50): unscalable, direct, high-touch.
- The people who posted about the problem (HN/Reddit/GitHub issues/X), DM them, personally.
- Your TAB → convert to design partners / first users.
- Founder posting genuinely useful things where the ICP hangs out (not "we launched!").
- One deep launch (see
launch-it), not ten shallow ones.
Post-PMF (later): content/SEO, community, dev-influencer partnerships, then paid to amplify what already converts, never to discover it. And once the first 50 are in and retention holds, the hand-to-hand work graduates: build the self-reinforcing engine in growth-loops.
Show full SKILL.md (218 more words)Show less
How to pick the channel (don't do all of them)
From talk-to-users question 7 ("where do you go to stay current?"), you already have the answer. Rank channels by where your specific ICP is, and go deep on one before adding a second.
Is your ICP concentrated somewhere specific (a subreddit, a Discord, a conference, a tag)?
├─ YES → go all-in there first. Depth beats spread at 0→50.
└─ NO → your ICP may be too broad → tighten it in `who-is-this-for`.Mistakes that look reasonable
- "Post more": volume without a channel thesis is noise.
- Paid ads pre-PMF: you'll pay to accelerate a message that doesn't convert yet.
- Building a community at 5 users: a Discord with 3 lurkers is a graveyard that signals "dead." Wait for real traction.
- Optimizing acquisition over a leaky bucket: if week-2 retention is near zero, fix Evaluation/Activation first.
- Launching ten times, shallow: one well-prepared launch > ten "we shipped X" tweets.
Your next 30 minutes
- Write down the 3 exact places your ICP discovers tools (pull from
talk-to-usersQ7). - List 20 people who publicly posted about your problem. DM 5 today, helpful, not pitchy.
- Turn your best 5 TAB members into your first 5 users this week.
- Confirm a new user can hit first value in under an hour. If not, that's the real priority.
Built from real dev-tool GTM experience, with frameworks from Adam Frankl (The Developer-Facing Startup) and Jakub Czakon (markepear.dev). If the first users aren't coming and you're out of channels to try, 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/09-first-50-users of AIDevGTM/gtm-cofounder.
Open the folder on GitHubat commit 7e89e8a
Compare with similar skills
First 50 Users 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 |
|---|---|---|---|---|---|---|
| First 50 Users this skillAIDevGTM/gtm-cofounder | 311 | — | ~977 | Automated safety check: Pass | MIT | |
| Startup Designferdinandobons/startup-skill | 1.2k | — | ~8.1k | Automated safety check: Pass | MIT | |
| Product Strategistnicepkg/auto-company | 192 | 1 repos | ~2.4k | Automated safety check: Pass | None | |
| Loop Detectindranilbanerjee/digital-marketing-pro | 855 | 1 repos | ~2.4k | Automated safety check: Pass | MIT | |
| Marketing StrategistCoWork-OS/CoWork-OS | 473 | — | ~893 | Automated safety check: Pass | MIT | |
| Abm Diy Campaignexplorium-ai/gtm-skills | 163 | — | ~2.4k | Automated safety check: Pass | MIT |
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More from AIDevGTM/gtm-cofounder
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Build authority by teaching the problem space, not announcing features.
Growth Loops
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Turn hand-made first-50 traction into self-reinforcing acquisition loops, so the next 5,000 users come from usage, not founder hours.
Know If Its Working
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Measure GTM with the metrics that matter (net developer retention, DREAM funnel) instead of vanity numbers.
Launch It
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Plan a developer launch (Show HN, Reddit, Product Hunt) that earns goodwill instead of a flaming.
Market To Devs Sell To Buyers
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Related
Questions about First 50 Users
What does First 50 Users do?
Get the first 50 real users through channels the user's ICP already uses. First 50 Users is an agent skill from AIDevGTM/gtm-cofounder. Get the first 50 real users through channels the user's ICP already uses.
When should I use First 50 Users?
First 50 Users fits situations like: the product shipped and nobody came; the user is posting more with no result; is reaching for paid ads before product-market fit.
How do I install First 50 Users in Claude Code?
Run `npx skills add AIDevGTM/gtm-cofounder --skill first-50-users -a claude-code`. Or copy the skill folder (skills/09-first-50-users in AIDevGTM/gtm-cofounder) into .claude/skills/first-50-users in your project. Claude Code loads it when a task matches its description.
How do I install First 50 Users in Codex?
Run `npx skills add AIDevGTM/gtm-cofounder --skill first-50-users -a codex`. Or copy the skill folder (skills/09-first-50-users in AIDevGTM/gtm-cofounder) into .agents/skills/first-50-users in your project. Codex loads it when a task matches its description.
Can I use First 50 Users 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 first-50-users -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/first-50-users, .gemini/skills/first-50-users, .github/skills/first-50-users and .opencode/skills/first-50-users in your project.
What does First 50 Users need to run?
SKILL.md names no scripts, command-line tools or credentials: First 50 Users is instructions for the agent only.
Does First 50 Users 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 First 50 Users 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 First 50 Users use?
First 50 Users 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 First 50 Users use?
About 977 tokens (SKILL.md is roughly 3.9k 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 First 50 Users?
Skills that share tags, products or a category with First 50 Users: Startup Design (ferdinandobons/startup-skill, 1.2k stars), Product Strategist (nicepkg/auto-company, 192 stars), Loop Detect (indranilbanerjee/digital-marketing-pro, 855 stars) and Marketing Strategist (CoWork-OS/CoWork-OS, 473 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains First 50 Users?
AIDevGTM (a GitHub user) maintains it in AIDevGTM/gtm-cofounder, which has 311 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.