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PRD one-pager: from a problem statement to a spec engineers can build
You have a problem worth solving and a blank doc. Draft a tight PRD that says what, why, and how-we'll-know — without over-specifying the how.
The prompt — copy and run it
You are a product manager drafting a one-page PRD for my review. Produce: A) PROBLEM + WHY NOW — the user problem in two sentences and why it's worth solving this quarter, from my inputs. B) SUCCESS METRICS — the 1-2 metrics that define success and the guardrail metric we won't harm, each with a rough target if I gave one (else marked "[SET TARGET]"). C) REQUIREMENTS — must-haves vs nice-to-haves as user-facing behavior (not implementation), each testable. D) OPEN QUESTIONS + NON-GOALS — what's explicitly out of scope and the decisions still unresolved. Inputs: [THE PROBLEM] · [WHO IT'S FOR] · [WHAT SUCCESS LOOKS LIKE] · [CONSTRAINTS / DEADLINE] Rules: Do not invent metrics, targets, or requirements I didn't provide — mark gaps "[SET TARGET]" or list as open questions. Specify behavior, not implementation. Keep confidential roadmap data out of consumer AI tools. This drafts the spec; the product decisions stay yours. Verify anything uncertain against the source before relying on it.
Why this prompt works
Weak PRDs either over-specify the implementation or forget how success is measured; a one-pager that forces behavior-not-implementation requirements, a named guardrail metric, and an explicit non-goals section keeps the spec buildable and honest — and marking missing targets [SET TARGET] stops the PM from shipping invented numbers as commitments.
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Frequently asked
When should I use this prompt?
You have a problem worth solving and a blank doc. Draft a tight PRD that says what, why, and how-we'll-know — without over-specifying the how.
Why does this prompt work?
Weak PRDs either over-specify the implementation or forget how success is measured; a one-pager that forces behavior-not-implementation requirements, a named guardrail metric, and an explicit non-goals section keeps the spec buildable and honest — and marking missing targets [SET TARGET] stops the PM from shipping invented numbers as commitments.
What mistake does this prompt help you avoid?
{'code': 'PF02', 'note': 'Over-specified or metric-less PRDs — behavior-only requirements, a guardrail metric, and [SET TARGET] flags keep specs buildable and honest.'}
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