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PRD Writer

helio / prd-writer
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PRD Writer
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Give it the problem and the goal. Your AI teammate asks what's missing, maps the user journey, and produces a PRD with acceptance criteria engineering can actually build against.

What is PRD Writer?

  • ·Asks before it writes: Clarifying questions close the gaps before drafting starts — a PRD built on assumptions is worse than no PRD at all.
  • ·Produces the full document, not a summary: Background, features, flows, acceptance criteria, and edge cases, in one deliverable.
  • ·Maps the user journey before proposing features: Pain points identified step by step, so every proposed feature answers something real.
  • ·Gets reviewed before it's called done: A technical read checks feasibility and edge cases; product confirms the acceptance criteria are actually testable.

What does PRD Writer produce?

❓Clarifying questionsAsked before writing starts, not skipped.
📄Full PRDBackground, features, flows, acceptance criteria, edge cases.
🗺️User journey mapPain points identified at each step, from the user's point of view.
📋Prioritized feature listTied to specific pain points, not a wish list.
✅Feasibility reviewA technical read on what's buildable, before it's called done.

The SOP, step by step.

  1. 01

    Take the background and goal

    The problem, target users, and what success looks like.

  2. 02

    Ask what's missing

    Clarifying questions to close the gaps before any writing starts.

  3. 03

    Write the PRD

    Background, features, flows, acceptance criteria, and edge cases — the full document.

  4. 04

    Review for feasibility

    A technical read for what's buildable and what edge cases still need attention.

  5. 05

    Map the user journey

    Step by step, from the user's actual point of view.

  6. 06

    Identify pain points

    Where the journey breaks down or frustrates today.

  7. 07

    Propose features tied to pain points

    Not a wish list — each feature answers a specific step.

  8. 08

    Prioritize for review

    A proposed order, reviewed by product and design together before it's final.

What it produces, in practice.

Illustrative example generated for this page — actual output depends on your real data.

📋 PRD · Prescription Withdrawal Flow

Sample · illustrative

1. Background & goal

Doctors need a way to withdraw a mis-issued prescription without manually contacting the patient.

2. Features

  • Withdraw entry point (only while unpaid / undispensed)
  • Withdrawal validation (order status, time window, permission)
  • Patient-facing notice on withdrawal
  • Backend consultation/prescription record update

3. Main flow

Doctor initiates withdrawal → system validates → status rolls back → patient notified.

4. Acceptance criteria (testable)

  • Withdraw on a paid prescription → system rejects with a message ✅
  • Withdraw on an unpaid prescription → succeeds, patient notified within 3 seconds ✅

5. Edge cases

  • Medication already dispensed: withdrawal blocked, routes to the return flow instead
  • Concurrent withdrawal attempts: first success wins, later attempts see "already withdrawn"

Technical review: feasible, flag the concurrency case. Test review: acceptance criteria are testable, edge cases covered.

See it happen

Watch PRD Writer set up a new automation.

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What PRD Writer connects to.

Notion

Connected

Stores and versions the PRD as a living document.

Lark

Coming soon

Same PRD workflow, for teams that run on Lark docs.

Questions

Does it write the PRD without asking anything first?
No — it asks clarifying questions for anything ambiguous before writing. A PRD built on assumptions is worse than no PRD at all.
Who reviews it before it's final?
A technical role reviews feasibility and edge cases, and product confirms the acceptance criteria are actually testable, before it's treated as done.
Can it update a PRD as requirements change?
Yes — point it at the existing document and the change, and it updates the relevant sections while keeping the rest intact.
Does it work for non-technical products (ops, healthcare, etc.)?
Yes — it adapts the PRD structure to the domain. For regulated domains like healthcare, it still flags where a compliance or clinical review is required.
Try for free

Get from an idea to a build-ready PRD.

Give Helio the problem and the goal — it asks what's missing and produces a document engineering can plan a sprint around.

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