Writing a PRD is a slog. You start with a prioritized opportunity, something like "SMB customers struggle with slow onboarding," and turning that into a spec means meetings with design, engineering, and leadership. You translate research into requirements, write down the constraints, cover the edge cases. Weeks go by. And if you fall behind, the opportunity shifts and now you're updating a stale spec instead of writing a fresh one.
So automate the first draft. That's all this agent does, and it's enough.
Wire it to five inputs
It's only as good as what it reads.
Prioritized opportunities come straight from your opportunity tracker: the problem statement, the affected segments, the expected impact. A research repository grounds the PRD in actual customer pain instead of a hunch, so hand it the related interviews, journey maps, user feedback. Your design system too, the existing wireframes and components, so the draft either aligns with the design direction or flags where it doesn't. Technical documentation, meaning architecture and API specs and known tech debt, lets the agent judge whether the work fits the current architecture and what depends on what. And CRM or analytics for customer context: who benefits, and how much value is on the table.
Run it weekly, Monday at 11 AM, generating PRDs for the top 2-3 opportunities. The prompt asks for a complete PRD in eight sections: goals and success metrics with target values, a problem statement that says why now and what it costs you to not build it, user stories with the happy path and the edge cases, a solution approach across UX and technical changes, functional and non-functional requirements, a launch plan, risk and mitigation across technical, adoption, and competitive angles, and future considerations for phase 2.
The last line of the prompt is the one that matters. Ground every requirement in research or business context, and format it ready for engineering review.
That's the whole difference from just asking Claude for a PRD. The agent reads your specific opportunity statement, real customer quotes, your design system components, your architecture constraints. What comes out fits your product's real context. Not a generic template with placeholder language poured in.
Every requirement traces back to a customer pain or a business impact. Engineering gets clearer specs and fewer clarification loops. The number I care about: a PRD takes 2 hours to refine instead of 10-plus hours to write. The refinement stays yours. The framing, the metrics, the judgment calls the agent can't make.
Connect your opportunity stack, research repo, and Figma, then generate one PRD this week. Refine it, note what you changed, and fold those notes back into the prompt.