Founder OS

Founder OS is a skill for Claude Code, Codex from LeoYeAI/openclaw-master-skills. It costs 49 tokens per session (6,243 once invoked), scanned A, original, MIT.

A startup planning and operating guide covering idea validation, customer research, product-market fit, fundraising, hiring, finances, and growth.

In plain words
What is it for?
Use it to interview potential customers, assess demand, define success measures, plan fundraising, build a team, and evaluate when to pivot.
Why use it?
It helps founders test whether a problem is worth solving before investing heavily, then organise the decisions needed to build and scale a company.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: positional $N argument.

Good fit Use it to interview potential customers, assess demand, define success measures, plan fundraising, build a team, and evaluate when to pivot.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/leoyeai/openclaw-master-skills/afrexai-founder-os
About the project

OpenClaw Master Skills is a curated, regularly updated collection of skills that extends an AI personal assistant platform with capabilities such as research, browser automation, presentation creation, and prompt work. It is intended for people using OpenClaw or MyClaw.ai to give their agents additional tasks and workflows. The catalogue contains many skills and agents from this collection.

LeoYeAI/openclaw-master-skills · 2,141 stars · on GitHub · myclaw.ai

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Any agent
npx skills add LeoYeAI/openclaw-master-skills --skill afrexai-founder-os
Clone the repo
git clone --depth 1 https://github.com/LeoYeAI/openclaw-master-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Founder OS

README.md
[![agentmods](https://agentmods.dev/badge/skills/leoyeai/openclaw-master-skills/afrexai-founder-os/github.svg)](https://agentmods.dev/skills/leoyeai/openclaw-master-skills/afrexai-founder-os)
Your own site
<a href="https://agentmods.dev/skills/leoyeai/openclaw-master-skills/afrexai-founder-os"><img src="https://agentmods.dev/badge/skills/leoyeai/openclaw-master-skills/afrexai-founder-os/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for Founder OS

Your own site · 80×15
<a href="https://agentmods.dev/skills/leoyeai/openclaw-master-skills/afrexai-founder-os"><img src="https://agentmods.dev/badge/skills/leoyeai/openclaw-master-skills/afrexai-founder-os.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 49 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 6,243 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00049 $0.06243
Opus 5 $0.00024 $0.03121
Sonnet 5 $0.00010 $0.01249
Haiku 4.5 $0.00005 $0.00624

Measured 9d ago against content hash b40a4e6dd5d1, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade A, and why

Founder OS scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 9d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/afrexai-founder-os/SKILL.md · 701 lines

How it starts

The opening of the file, as written. The whole thing — 701 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Founder OS — Complete Startup Operating System

You are a startup advisor and operator. Follow this system to guide founders from idea to scale. Every recommendation must be specific, actionable, and grounded in real startup methodology.


Phase 1: Idea Validation (Week 1-2)

Problem Validation Brief

Before writing a line of code, complete this:

problem_validation:
  problem_statement: "[WHO] struggles with [WHAT] because [WHY]"
  existing_alternatives:
    - name: ""
      weakness: ""
      price: ""
  frequency: "daily | weekly | monthly | yearly"
  severity: "annoying | painful | hair-on-fire"
  willingness_to_pay: "free-only | would-pay | actively-searching"
  target_customer:
    demographics: ""
    psychographics: ""
    watering_holes: "where they congregate online/offline"
  validation_status: "assumption | talked-to-5 | talked-to-20 | pre-orders"

Kill Criteria — Stop If:

  • Frequency < monthly AND severity < painful
  • Zero willingness to pay after 20 conversations
  • Market size < $100M TAM (won't attract investors or sustain growth)
  • You can't explain the problem in one sentence
  • Existing solutions are "good enough" and switching cost is high

Customer Discovery Interview Script

Opening (2 min): "Tell me about the last time you dealt with [PROBLEM]. Walk me through what happened."

Deep dive (15 min):

  1. "How often does this come up?"
  2. "What do you currently do about it?" (existing behavior = real demand)
  3. "What's the most annoying part of your current approach?"
  4. "Have you tried anything else? What happened?"
  5. "If you could wave a magic wand, what would change?"
  6. "How much time/money does this cost you per [week/month]?"

Commitment test (3 min):

  • "Can I add you to our beta list?" (email = weak signal)
  • "Would you pay $X/month for this?" (verbal = medium signal)
  • "Can I charge you $X now for early access?" (payment = strong signal)
  • "Can you intro me to 3 others with this problem?" (referral = strongest signal)

Read the full file on GitHub · 701 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 9d ago First seen · 701 lines · 49 tokens per session scan A b40a4e6dd5d1

Subscribe to this mod's changes

Founder OS is a skill published in the GitHub repository LeoYeAI/openclaw-master-skills (2,141 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 6,243 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.