AI-powered RAG configuration assistant: From form to email recommendations

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Important notice

This workflow is provided as-is. Please review and test before using in production.

1. Workflow Overview

Description An intelligent RAG Configuration Assistant that analyzes your retrieval augmented generation requirements and delivers AI powered recommendations via email. Get expert guidance on embed...

Best for

Engineering automation workflows
AI RAG automation workflows
advanced n8n builders looking for reusable templates

Tools used

n8n-nodes-base.formtrigger, n8n-nodes-base.code, n8n-nodes-base.if, n8n-nodes-base.merge, n8n-nodes-base.set, @n8n/n8n-nodes-langchain.agent, @n8n/n8n-nodes-langchain.lmchatopenrouter, n8n-nodes-base.gmail

Source and attribution

This workflow is cataloged by N8N Workflows and links back to its original n8n.io source page by Sridevi Edupuganti.

Original n8n.io source

1.1 Workflow description

Title: AI-powered RAG configuration assistant: From form to email recommendations
Workflow name: AI-powered RAG configuration assistant: From form to email recommendations

Description

An intelligent RAG Configuration Assistant that analyzes your retrieval-augmented generation requirements and delivers AI-powered recommendations via email. Get expert guidance on embedding models, chunk sizes, vector stores, and cost estimates—all automated through a simple form submission.

Key Features

• AI-powered analysis using LLM • 14 predefined use cases (Document Q&A, Chatbot, Legal, Medical, etc.) • Optional document upload for enhanced analysis • Beautiful HTML email reports with modern dashboard design • Customized n8n workflow JSON attachment • Cost estimation based on budget and usage • Deterministic AI (temperature=0) for consistent results • Dual-branch architecture (file upload or manual input)

How it works

Form Submission: User provides use case, document type, pages, budget, query volume
AI Analysis: Claude evaluates requirements and complexity
Recommendation Engine: Generates optimal configuration (embedding model, chunk size, vector store)
Report Generation: Creates professional HTML email with all recommendations
Workflow Creation: Builds customized n8n workflow JSON
Email Delivery: Sends report + workflow attachment via Gmail

How to use

Setup credentials: Add OpenRouter API key and Gmail OAuth
Activate workflow: Enable the Form Trigger
Share form URL: Distribute to your team or clients
Receive requests: Users fill out the form
Get results: Recipients receive email with recommendations + workflow file
Import workflow: Download attached JSON and import to n8n

Requirements

Essential:

n8n instance (v1.0+)
OpenRouter account + API key
Gmail account with OAuth2 setup

1.2 Logical Blocks

This catalog entry is organized from the workflow JSON. The node-level section below shows the executable blocks available for review before importing the template.

2. Block-by-Block Analysis

Block 1 - Form Trigger

Type / Role: n8n-nodes-base.formTrigger - formTrigger
Config choices: Version 2.1

Block 2 - Analyze Input

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 3 - Check File Upload

Type / Role: n8n-nodes-base.if - if
Config choices: Version 2

Block 4 - Extract File Content

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 5 - Manual Input Path

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 6 - Merge Analysis

Type / Role: n8n-nodes-base.merge - merge
Config choices: Version 2.1

Block 7 - Prepare for AI

Type / Role: n8n-nodes-base.set - set
Config choices: Version 3.2

Block 8 - Configuration Decision Engine

Type / Role: @n8n/n8n-nodes-langchain.agent - agent
Config choices: Version 1.7

Block 9 - OpenRouter LLM

Type / Role: @n8n/n8n-nodes-langchain.lmChatOpenRouter - lmChatOpenRouter
Config choices: Version 1

Block 10 - Generate n8n Workflow

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 11 - Format HTML Report

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 12 - Send Gmail

Type / Role: n8n-nodes-base.gmail - gmail
Config choices: Version 2.1

Block 13 - Create Workflow Attachment

Type / Role: n8n-nodes-base.code - code
Config choices: Version 2

Block 14 - Sticky Note

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 15 - Sticky Note1

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 16 - Sticky Note2

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 17 - Sticky Note3

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 18 - Sticky Note4

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 19 - Sticky Note5

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 20 - Sticky Note6

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

Block 21 - Sticky Note7

Type / Role: n8n-nodes-base.stickyNote - stickyNote
Config choices: Version 1

3. Summary Table

Workflow	AI-powered RAG configuration assistant: From form to email recommendations
Complexity	advanced
Nodes	21
Categories	Engineering, AI RAG
Author	Sridevi Edupuganti
Published	20 Dec 2025

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

Use the JSON export at /data/workflows/11990/11990.json as the source template for this automation.
2. Import the template into n8n

Open n8n, import the downloaded JSON, and review each node before activating the workflow.
3. Configure credentials and variables

Replace placeholder credentials, API keys, webhook URLs, account IDs, and environment-specific values with your own settings.
4. Test with sample data

Run the workflow manually or in a staging workspace, inspect node output, and confirm downstream systems receive the expected data.
5. Activate and monitor

Enable the workflow only after testing, then monitor executions, errors, and rate limits during the first production runs.

5. General Notes & Resources

Review imported nodes carefully before activation. This catalog entry is intended to help you inspect the workflow structure, understand required services, and find related templates faster.

Node names, credentials, schedules, webhook paths, and external service limits may need adjustment for your workspace.

Download workflow JSON Original n8n.io source Engineering workflows AI RAG workflows

Frequently asked questions

What does AI-powered RAG configuration assistant: From form to email recommendations do?

What do I need before importing this workflow?

Review the workflow JSON, configure any required credentials in n8n, and test the automation in a safe workspace before using it in production.

Can I customize this workflow?

Yes. Use the block-by-block analysis and the downloadable JSON to inspect each node, then adjust credentials, prompts, schedules, filters, or destinations for your Engineering, AI RAG use case.

Sridevi Edupuganti

10 workflows

Nodes

n8n-nodes-base.formtrigger n8n-nodes-base.code n8n-nodes-base.if n8n-nodes-base.merge n8n-nodes-base.set @n8n/n8n-nodes-langchain.agent @n8n/n8n-nodes-langchain.lmchatopenrouter n8n-nodes-base.gmail

Complexity

advanced

Published 20 Dec 2025

Likes 0

View on n8n.io Download Workflow

Install path: /data/workflows/11990/11990.json

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AI-powered RAG configuration assistant: From form to email recommendations

Workflow preview

Important notice

1. Workflow Overview

Best for

Tools used

Source and attribution

1.1 Workflow description

Description

Key Features

How it works

How to use

Requirements

1.2 Logical Blocks

2. Block-by-Block Analysis

Block 1 - Form Trigger

Block 2 - Analyze Input

Block 3 - Check File Upload

Block 4 - Extract File Content

Block 5 - Manual Input Path

Block 6 - Merge Analysis

Block 7 - Prepare for AI

Block 8 - Configuration Decision Engine

Block 9 - OpenRouter LLM

Block 10 - Generate n8n Workflow

Block 11 - Format HTML Report

Block 12 - Send Gmail

Block 13 - Create Workflow Attachment

Block 14 - Sticky Note

Block 15 - Sticky Note1

Block 16 - Sticky Note2

Block 17 - Sticky Note3

Block 18 - Sticky Note4

Block 19 - Sticky Note5

Block 20 - Sticky Note6

Block 21 - Sticky Note7

3. Summary Table

4. Reproducing the Workflow from Scratch

1. Download the workflow JSON

2. Import the template into n8n

3. Configure credentials and variables

4. Test with sample data

5. Activate and monitor

5. General Notes & Resources

Frequently asked questions