Lean Startup
Build-Measure-Learn for founders: MVPs, validated experiments, pivot-or-persevere calls
- What
- Build-Measure-Learn for founders: MVPs, validated experiments, pivot-or-persevere calls
- Cost
- Free
- Needs
- none — no account, no API keys. Most useful if you have a product idea, startup, or early product to evaluate.
- Install
- Copy the installer prompt below into your Muse — your agent does the rest.
Curated by Skill Harbor — a free, open-source skill (MIT), listed here with credit to its creator @wondelai. Discovered via skills.sh. A complete Build-Measure-Learn advisor for founders: it designs minimum viable products, sizes validated-learning experiments, ranks leap-of-faith assumptions by risk, scores plans against a 10-point diagnostic, and applies innovation accounting with actionable (not vanity) metrics to drive pivot-or-persevere decisions. Honest notes: guidance only — it structures thinking, it doesn't validate demand or talk to customers for you; its worked examples (Dropbox, Zappos, Groupon) are the methodology's classics, not guarantees; the scoring rubrics are the skill's own, use them as a discipline not a verdict. Skill Harbor never reviews the code, review it yourself before use. Not verified.
Version:
Install
Prerequisites: none — no account, no API keys. Most useful if you have a product idea, startup, or early product to evaluate. Install "Lean Startup" for me. Applies the Build-Measure-Learn methodology to my idea or product: designs MVPs and validated-learning experiments, ranks leap-of-faith assumptions by risk, scores plans against a 10-point diagnostic, and uses innovation accounting with actionable metrics for pivot-or-persevere decisions. Repository: https://github.com/wondelai/skills 1. Fetch the SKILL.md file for the lean-startup skill (and any helper files) from the repository into a temporary folder and summarize what it does in one or two sentences. 2. Safety check: review the SKILL.md and scripts for anything suspicious (unexpected network calls, shell commands, credential harvesting). This repo should contain zero secrets in code, credentials only via the secure vault, allowed hosts declared in the SKILL.md. Verify that holds here; STOP on any red flag and tell me. 3. Install it as a skill: copy SKILL.md and its helper files into the agent's skills directory, in a folder named "lean-startup". 4. Verify with no network calls: frontmatter valid, files in place. 5. Report what was installed, where, and what I still need to do myself (e.g. describe my product idea and riskiest assumption so the first experiment can be designed). GitHub is optional: if I have a GitHub account or the gh CLI, you may use it; otherwise public access is fine. Never require it unless it's in the prerequisites above. Rules: don't touch anything outside the temp folder and the install target. If anything looks off, stop and ask me.
Questions
How do I install a build?
Every product page includes a copy-paste install prompt. Paste it into your Muse and it sets the build up for you — no manual configuration.
Where does my money go?
Straight to the seller. Skill Harbor never processes payments: checkout happens on the seller’s own page, usually Stripe.
What does the ✓ next to a creator’s name mean?
It means we confirmed the identity of the person behind the listing. It says nothing about the code itself — always check a build before installing it.