Build Your Own Prompt Engineer in 10 Minutes

By Alexis

Tired of manually rewriting LLM outputs, editing AI hallucinations, or re-explaining your brand each time? With this guide, you’ll build your own Prompt Engineer—a reusable, high-context AI assistant that generates on-brand, high-quality prompts or content for you, instantly.

Build Your Own Prompt Engineer

Build Your Own AI Prompt Engineer in 10 Minutes

Your step-by-step guide to creating a personalized AI assistant that understands your brand

Introduction

Are you constantly:

  • Rewriting AI outputs to match your brand voice?
  • Fixing inaccurate information in AI responses?
  • Re-explaining your business context for every new prompt?

With this practical guide, you'll create your own AI Prompt Engineer — a customized AI assistant that generates on-brand, high-quality prompts tailored specifically to your business. No coding skills required.

Why This Matters

A personalized AI Prompt Engineer will:

  • Save hours of repetitive instruction writing
  • Maintain brand consistency across all AI-generated content
  • Improve output quality with rich business context
  • Reduce back-and-forth editing of AI responses

Step 1: Choose Your AI Platform

Select your preferred AI engine:

  • OpenAI (ChatGPT): Use Custom GPTs (requires ChatGPT Plus subscription)
  • Claude (Anthropic): Create a Claude Project in Claude.ai (works best with Claude Pro)

Either option allows you to upload context files and define system instructions to create your persistent AI assistant.

Step 2: Create Your System Prompt

The system prompt is the "brain" of your AI Prompt Engineer. It defines:

  • Role: What your AI assistant is (a prompt engineering expert)
  • Purpose: Who it's helping (you or your team)
  • Style: How it should communicate (tone, format, structure)
  • Priorities: What to optimize for (accuracy, creativity, brand alignment)

Download our System Prompt Template

Customize this template to match your specific needs. A strong system prompt should include:

  • Clear role definition
  • Communication guidelines
  • Output format preferences
  • Key priorities and constraints

Step 3: Capture Your Brand Voice

To give your AI Prompt Engineer authentic brand context:

  1. Visit your company website
  2. Copy content from your homepage, about page, and service pages
  3. Ask ChatGPT or Claude: "Convert this content into a well-formatted Markdown file named 'website-content.md'"
  4. Save the resulting markdown file

This provides your AI with the exact language, terminology, and tone that represents your brand identity.

Step 4: Upload Context Files

Add these Markdown (.md) files to your Custom GPT or Claude Project:

  1. Your website content (created in Step 3)
  2. Prompt Engineering Guide
  3. Practical Prompt Engineering Techniques
  4. Optional: Add service descriptions, case studies, or other brand materials

The more relevant context you provide, the better your AI Prompt Engineer will understand your business.

Step 5: Start Creating Expert Prompts

Now you're ready to use your AI Prompt Engineer! Simply:

  1. Open a conversation with your Custom GPT or Claude Project
  2. Make a request like:
    • "Create a prompt to generate a product launch email for our AI Bootcamp"
    • "I need a prompt that will help me write social media content about our Expert Training sessions"
    • "Generate a prompt for creating a case study about our Custom Development work"

Your AI Prompt Engineer will generate a well-structured prompt that you can copy and paste into a standard ChatGPT or Claude conversation for high-quality, on-brand results.

Pro Tip: Create Specialized AI Assistants

Take this concept further by creating role-specific AI assistants:

  • Marketing Manager GPT/Project
  • Content Creator GPT/Project
  • Customer Support GPT/Project

Then use your Prompt Engineer to generate prompts tailored for each specialized assistant!

Example: From Basic to Expert Prompt

Basic prompt: "Write a social media post about our AI Bootcamp"

AI Prompt Engineer output:

Create a compelling LinkedIn post for our AI Bootcamp with these specifications:

AUDIENCE: Time-pressed business owners and service professionals feeling overwhelmed by AI adoption

TONE: Professional, approachable, jargon-free

KEY MESSAGES:
- 5-day intensive program with max 10 participants
- Transform your business with practical AI skills in just one week
- Includes daily live sessions, plug-and-play templates worth £950
- Early bird pricing: £499 (reduced from £799)
- 1 year of community support included (£528 value)

STRUCTURE:
1. Open with a pain point about feeling behind on AI
2. Introduce our solution (AI Bootcamp)
3. Highlight 2-3 key features and their business benefits
4. Include social proof from Handy Cats
5. End with clear CTA to book at https://cal.com/niumora-ai/ai-bootcamp

The post should be under 1300 characters and include 2-3 relevant hashtags.

Summary Checklist

✅ Create Custom GPT or Claude Project
✅ Add system prompt (your AI Prompt Engineer's instructions)
✅ Convert your website content to a markdown file
✅ Upload context files
✅ Start generating expert-level prompts that save time and improve results

Start creating better AI outputs today with your personalized AI Prompt Engineer!

Questions? Need help? Book an Expert Session: https://cal.com/niumora-ai/expert-session

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