# Generate PRDs and test scenarios with OpenAI and Claude: n8n workflow

> Started by someone submitting a form. It calls services over plain HTTP rather than through connectors. It hands the judgement calls to OpenRouter.

Source: https://millionrounds.com/workflow/generate-prds-and-test-scenarios-with-openai-and-claude (Millionrounds; every figure on the page links to its filing or article)

[Automation library](https://millionrounds.com/workflows) · [Documents and files](https://millionrounds.com/workflows?category=Documents+and+files#library)

# Generate PRDs and test scenarios with OpenAI and Claude

Started by someone submitting a form. It calls services over plain HTTP rather than through connectors. It hands the judgement calls to OpenRouter. 8 steps: small enough to read in one sitting and change without fear.

Small Calls a model: OpenRouter

[Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgenerate-prds-and-test-scenarios-with-openai-and-claude)

**8 steps** Small: readable in one sitting

**0** Branches: places the flow splits

**0** Loops or waits

**0** Services by connector: it calls them over plain HTTP

## The flow

Starts it 1 Model 4 Logic 1 Service 2

The steps in the order they run, from what starts it.

- 1 **OpenRouter Chat Model** Lm Chat Open Router *Model*
- 2 **OpenRouter Chat Model1** Lm Chat Open Router *Model*
- 3 **Get User Input** Form trigger *Starts it*
- 4 **PRD LLM Chain** Chain Llm *Model*
- 5 **Test Case LLM Chain** Chain Llm *Model*
- 6 **Merge PRD and Test Case** Set *Logic*
- 7 **Create Document in PDF** Api Template Io *Service*
- 8 **Let User Download** Form *Service*

## How it's built

- **Starts on:** Someone submitting a form
- **Steps:** 8
- **Size:** Small: readable in one sitting
- **Connects to:** Nothing by connector; it calls services over plain HTTP
- **Model:** OpenRouter

## Questions

What does it need to run?

An n8n account, and a key for OpenRouter. You connect your own accounts after importing it; none are included.

What starts it?

It starts on someone submitting a form.

Does it use AI?

Yes. It calls OpenRouter. Model calls are billed by the provider, not by n8n.

How long does it take to set up?

Not long. At 8 steps it can be read in one sitting and changed without fear.

How do I import it?

Copy the workflow, open a new workflow in n8n and paste. The steps appear on the canvas, ready for your own accounts.

**Before you run it**

Nothing here has been tested by us. It is somebody's working automation, read and described from its own steps. Treat the connections it wants as a list of accounts it will touch, and read the 8 steps before you point it at anything that matters.

## Run it in n8n

- **Create your n8n account** Free to start. n8n is where the workflow runs. [Create an n8n account ↗](https://millionrounds.com/n8n)
- **Download the workflow** Free with a Millionrounds account. [Download free](https://millionrounds.com/login?next=%2Fapp%2Fworkflow%2Fgenerate-prds-and-test-scenarios-with-openai-and-claude)
- **Paste it into n8n** Open a new workflow in n8n and paste. Then connect your own accounts.

Stored with the author's traces removed: canvas notes, instance identifiers, saved credential names and any live document they had left behind.

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Also documents and files, with the same services where possible, closest in size first.

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