All questions

Plan PMF: the P/MF Detective method, inside Claude Code

AI made building cheap. It didn't make being wrong cheap. Most builders skip straight to code, and Claude Code will happily build whatever you ask for.

Plan PMF makes you answer the hard questions first, one question at a time.

Install

In Claude Code, run:

/plugin marketplace add adidacta/pmf-detective
/plugin install pmf-detective@pmf-detective

Then type /plan-pmf to start the guided flow, or just ask: "Help me define my ICP."

What it does

1. ICP: three customer hypotheses, each drilled to the real pain with 5 Whys and researched in parallel. You pick the strongest.
2. Value proposition: a Callout (identity, context and pain that makes them say "that's me") and a Magnet (the future they want). Four angles to choose from.
3. MVP scope: work backwards from the Aha! Moment to the shortest path, the features it needs, and an out-of-scope list.
4. Validation plan: your three core assumptions, the test method, and GO / ITERATE / PIVOT thresholds set before the data lands.

Then it routes you to a way to test: a landing page it generates for you, outreach with Mom Test interview questions, or a build-and-test path.

What you get

pmf/
├── icp.md              who your customer is
├── value-prop.md       why they should care
├── mvp.md              aha moment, features, out of scope
├── validation-plan.md  how you'll test, and the thresholds
└── outreach-plan.md    Mom Test questions and channels

Commit the folder. Every teammate and every AI session then builds from the same foundation, and you update it as you learn.

Who it's for

Founders and builders using Claude Code who have an idea, or an early product, and want to validate it before investing more. It's the same method I use with clients, packaged so you can run it yourself.