Prompt Hub for AI
Learn to think like history’s best. We’re aiming to shape 100,000 people in Applied Intelligence — where human clarity meets machine precision and turns insight into action. Field-tested templates you can copy and ship. No fluff, no paywall.
Total prompts
Total upvotes
Unique tags
What is HackTheSim?
HackTheSim is your no-nonsense prompt library. Every template is built with our CORE recipe so you can reuse it in real work without hand-holding.
- Context — the facts and inputs the model needs
- Outcome — the single, measurable goal
- Rules — tone, format, constraints, length
- Examples — patterns the model can mirror
Featured Prompt Example
Sales Email Rewrite for Cold Outreach
📋 Instruction:
Rewrite the sales email below to make it more engaging, personalised and focused on value. Limit to 90 words. Use a friendly, confident tone. Include a clear benefit and a call to action. Audience: Small business owners in retail using spreadsheets for inventory. Product: StockFlow (cloud inventory management SaaS).
📨 Original Email:
Hi, I'm reaching out to see if you're interested in trying our inventory software. It can help you track products and save time. Let me know if you want to try a demo.
🎯 Full Prompt:
Rewrite this email to small retail business owners still using spreadsheets for stock management. Product: StockFlow (cloud based inventory SaaS). Make it conversational, highlight a specific pain point, include a clear benefit and end with a low pressure call to action for a demo. Keep it under 90 words. Include a subject line.
✅ Example Output:
Subject: Tired of Spreadsheet Stock Chaos? Hi [Name], Managing inventory in spreadsheets is frustrating – errors, missed reorders and wasted hours are all too common. StockFlow is built for retailers like you: track products, automate reorders and get real-time updates – all in one place. Want to see how it could save you hours each week? Let's book a quick, no-pressure demo. – Sam from StockFlow
Why it works:
› Speaks directly to a pain point (spreadsheet frustration).
› Highlights a core benefit and specific automation.
› Uses a clear, non-pushy call to action and a credible sender.
Why leaders use HackTheSim prompts
✅ Curated & field-tested
Only prompts that perform consistently in real projects make the cut.
Only prompts that perform consistently in real projects make the cut.
⚡ Copy → Ship faster
Grab the exact pattern and paste it into your workflow.
Grab the exact pattern and paste it into your workflow.
🧩 Works with your stack
Fits ChatGPT, Claude, Gemini, Llama, and most RAG setups.
Fits ChatGPT, Claude, Gemini, Llama, and most RAG setups.
🧠 “Why it works” notes
Understand the levers so you can adapt the template with confidence.
Understand the levers so you can adapt the template with confidence.
Categories
✍️
Text GenerationBlog posts, ads, summaries, rewriting, emails and more.
💻
Code & ScriptingPython, shell, debugging, tests, reviews.
🎨
Image CreationDALL·E, Midjourney, SD—styles, lenses, lighting.
⚙️
Workflow AutomationNotion, Zapier, agents, multi-step flows.
Prompt Engineering – Practical vs Advanced
| Common approach | Prompt engineering |
|---|---|
| “Write me a blog post” | Specify role, style, structure and context |
| “Draw a cat” | Add style tags, camera, colour, composition |
| Generic requests | Use templates tailored for each use case |
| Disappointed by weak output | Refine with clear constraints and examples |
| Guess and hope for good results | Test, analyse and improve the prompt |
How HackTheSim works
- Browse or search – filter by model, use case or topic.
- Copy, adjust or combine prompt templates.
- Iterate with “why it works” notes for better output.
- Share yours to help others (and get featured).
Popular paths: Explore the Prompt Hub · Beginner’s Guide · Submit a Prompt · Saved Prompts