From Problem to Solution: Creating Prompt Refiner

Building Prompt Refiner: An MCP Extension for Better AI Prompts

The Problem

As a Business Analyst, I use Claude daily for requirements documentation, user stories, and stakeholder communications. But I found myself constantly rewriting prompts to get better results.

The cycle was frustrating:

• Write a prompt
• Get okay results
• Rewrite to be more specific
• Get better results
• Realize I should have been more concise
• Rewrite again...

I needed a faster way.

The Solution

I built Prompt Refiner - an MCP extension that instantly shows you 4 refined versions of any prompt:

1. Concise - Direct and to the point
2. Detailed - Rich with context
3. Creative - Encourages imagination
4. Analytical - Structured and logical

How It Works

1. Ask Claude to refine your prompt
2. See 4 variants instantly in a React artifact
3. Click copy on your preferred variant
4. Use it immediately

Technical Implementation

Built with:

• Node.js MCP server
• SQLite for history tracking
• React artifacts for UI
• Configurable storage system

Key Features

1. Configurable Storage

Perfect for enterprise environments. Store data on network drives, local folders, or in-memory.

2. Graceful Fallback

Works even on locked-down machines with automatic fallback.

3. History Tracking

All refinements saved for future reference.

Results

• 5-minute setup
• Zero external dependencies
• Works entirely in Claude Desktop
• Open source (MIT license)

Try It Yourself

GitHub: https://github.com/cs97jjm3/prompt-refiner

Conclusion

If you use AI in your workflow, prompt engineering is a skill worth developing. Prompt Refiner is a tool to help you get there faster.

What prompt engineering tools do you use? Share in the comments!