Product Requirements (PRD) — English / US edition

New here, or not sure this is the right skill? Start right here — or run /nmt-chat, describe your situation, and it points you to the right one. Quick map: new idea → nmt-market-research · live product or a metric moved → nmt-diagnose · have customer interviews → nmt-analyze-interviews · ready to build → nmt-product-requirements · positioning / launch copy → nmt-craft-value-proposition → nmt-craft-go-to-market.

In one breath. The skill no longer re-derives segments (that is /nmt-market-research) or invents value (that is /nmt-craft-value-proposition) — it consumes their output, and it runs no research itself. With no upstream artifact it does one of two things: route the user to run /nmt-market-research → /nmt-craft-value-proposition first (the proper path), or — if the user just wants requirements fast and already knows their segment and value — take the segment + value straight from the user's description (the fast path) and skip research entirely. It then adds a "challenge the build" gate before any requirement is written — is building this even the right move, or is there a cheaper, more effective way to hit the same business goal? — and writes the PRD for whatever wins. The deliverable is a single PRD, short by default: the one-page summary (what we're building · who it's for · the moment that proves it works · the single riskiest thing to validate before building · what to build first) is what most readers need; the full functional requirements and the ~90% edge-case table sit underneath as a deeper layer for whoever builds it. Internal methodology citations are kept out of the reader's reading flow; project rule numbers never appear in the output. Canon is loaded progressively — an eager core up front, staged files only at the stage that needs them. Landing/ad/GTM copy moved to /nmt-craft-go-to-market; analytics and a standalone unit-economics model are out of scope (unit economics survives only as a reasoning filter).

Producer contract (binding) — ../nmt-chat/references/producer-contract.md. Six cross-cutting behaviors shared by all producer skills, from user feedback: (1) print a helicopter-view before the first question; (2) ask Markdown or HTML output; (3) treat all user input as hypothesis and emit a "risks I see in what you gave me" block; (4) print validation debt and write GO (to validation), never bare GO; (5) accept a custom output path; (6) Deep mode runs an evidence floor + self-critic loop and offers a web-MCP fallback. The hooks below wire each into this skill; the contract is the source of truth for the wording. This skill is the closest-to-build artifact in the chain, so the validation-debt + "validate before you build, don't build yet" framing (§4) carries the most weight here — get it right.

Where this skill sits in the chain

/nmt-market-research   →   /nmt-craft-value-proposition   →   nmt-product-requirements   →   /nmt-craft-go-to-market
(segment + Jobs +      (the value hypothesis +          (THIS SKILL:               (landing + ad +
 wedge + competitors)   §11 implementation spec)         the build spec)            GTM/growth comms)

This skill is the build step. It takes a chosen segment with its Core Jobs and a value direction, challenges whether building is even the right move, and produces the requirements engineers and designers build against. It does not re-run segmentation, re-invent the value proposition, or write any customer-facing copy — those are the skills around it. Never regenerate what an upstream artifact already contains; load it and build on it.

What this skill produces