Lumina AI

GrowthForge
- AI Writing Assistant for Founders

Project Case Study

Growthforge home page

Overview

Client

Internal Product by Lumina AI Studio

Type

AI-Powered Content Assistant

Audience

Solo founders, indie hackers, technical creators

Goal

Help founders publish high-quality content consistently, without spending hours writing.

The Challenge

Solo entrepreneurs know the value of content marketing, but…

They don’t have time to write blog posts every week.

Hiring a writer is expensive and slow.

AI tools exist, but generic outputs don’t match their niche or tone.

How might we build an assistant that feels like a cofounder who understands the business and writes like them

The Solution: GrowthForge

We designed and built an AI content assistant tailored for solo tech founders and indie makers that helps them write blog posts that reflect their product & tone

Growthforge scrape page

Key Features & Tech Stack

Blog Generator

Trained on previous blog content and business info. Outputs SEO-friendly, niche-relevant articles.

Content Memory & Insights

Stores user inputs and content history using vector search. Learns from what worked.


Technologies Used

  • OpenAI GPT-4 + Function Calling
  • LangChain.js for custom workflows
  • MongoDB Atlas + Vector Search
  • Vue 3 frontend
  • Node.js + Express backend
  • Redis + BullMQ for job queues
  • AWS S3 for asset storage

AI System Design

Dynamic Prompting

Prompts are tailored to user preferences and business tone.

Context Injection

Includes summaries of past content and niche details.

Multi-Step Workflows

Content drafts → summary → CTA suggestions → tone/style polish.

Outcome

5x content production speed vs manual writing

Personalized outputs that don’t sound generic

GrowthForge blog post details view

Why This Matters

GrowthForge shows how AI assistants can go beyond ChatGPT - with personalization, memory, and real workflows. This is what we do at Lumina AI Studio:

Build intelligent tools that are useful, usable, and uniquely yours.

Want Something Like This?

Let’s talk about building your own AI assistant, content tool, or internal automation.