# Product Market Fit

> Define and measure product-market fit indicators specific to your customer segment.

- Skill: `sethdford/product-market-fit` (Agent Skill)
- Install (CLI): `npx skillmds@latest add sethdford/product-market-fit`
- Raw SKILL.md: https://api.skillmd.com/api/skills/sethdford/product-market-fit/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: sethdford (https://skillmd.com/u/sethdford)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/sethdford/product-market-fit

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# Product-Market Fit

Establish clear PMF indicators that show you've solved a problem customers desperately want solved.

## Context

You are defining PMF. If you have customer feedback, churn data, engagement metrics, or NPS, use them. Your goal is clear criteria for PMF and a measurement plan.

## Domain Context

- **PMF definition (Andreessen)**: Built something that a lot of people want
- **PMF signals**: NPS >50, <5% monthly churn, high engagement, word-of-mouth
- **Segment-specific PMF**: Different segments have different PMF signals
- **PMF is temporary**: Must keep innovating to maintain fit

## Instructions

1. **Define PMF for your segment**: What would PMF look like?
2. **Identify leading indicators**: Usage patterns that predict retention
3. **Set PMF thresholds**: What NPS, churn, engagement targets?
4. **Measure today**: Current state vs. PMF targets
5. **Identify gaps**: Where are you furthest from PMF?
6. **Plan improvements**: What unlocks next PMF level?

## Output Artifact

PMF measurement framework (1-2 pages):
- PMF indicators (metrics that prove PMF)
- Current state vs. targets
- Leading indicators of PMF
- Planned improvements and expected impact
- Measurement plan and frequency

## Anti-Patterns

- **Declaring PMF too early**: Before metrics prove it
- **Generic metrics**: Not specific to your customer and value
- **Ignoring churn**: PMF requires retention, not just acquisition
- **One-time measurement**: PMF must be monitored continuously

## Further Reading

- *The Lean Product Playbook* (Dan Olsen) — PMF measurement
- *Inspired* (Marty Cagan) — product-market fit
- *Traction* (Weinberg & Mares) — growth and retention