Most prompts fail not because the AI is bad — but because the prompt is vague. StackBuilt Prompt Optimizer builds production-ready prompts in one workflow. Describe your task, pick your domain, get system instructions + quality score. No prompt engineering background needed. Two modes: • Generate: build a structured prompt from scratch • Evaluate: improve an existing prompt For solopreneurs and operators using ChatGPT, Claude, or Gemini who want reliable, reusable prompts. Free. No signup.

Intercom — Startups get 90% off Intercom + 1 year of Fin AI Agent free

Startups get 90% off Intercom + 1 year of Fin AI Agent free

Hey Product Hunt! 👋 I built StackBuilt after spending way too much time fixing broken prompts mid-workflow. The problem isn't the AI — it's that most people write prompts like search queries, and the models respond accordingly: generically. The Prompt Optimizer was built to solve exactly that. You describe your task, pick your domain, and it architects a production-ready prompt with a proper system instruction, structured user message, and a quality score so you know what to fix before you even run it. Two modes: • Generate — build a solid prompt from scratch • Evaluate — paste your existing prompt and get an improved version It works for ChatGPT, Claude, Gemini — anything that accepts a system prompt. Completely free, no account needed. Part of the wider StackBuilt ecosystem for solopreneurs who want to build serious AI workflows without the hype. Would love your feedback — especially from anyone who uses prompts in production. What would make this more useful for you?

Intercom — Startups get 90% off Intercom + 1 year of Fin AI Agent free

Startups get 90% off Intercom + 1 year of Fin AI Agent free

StackBuilt Prompt Optimizer

Generate & optimize AI prompts in one workflow — free

Generate & optimize AI prompts in one workflow — free