I Built a Full App Using Only Cursor AI

🚀 Ready to level up? Get full access to my Agentic Coding Masterclass, weekly lab challenges, live Q&As, and a community of builders: https://www.skool.com/agentic-labs I built a complete YouTube Summarizer app using Cursor AI and Composer 2 - from zero to working product in 16 minutes. Paste a YouTube URL, get a TL;DR, key takeaways, and timestamped moments powered by AI. In this video I walk through the entire build: scaffolding the project with Cursor's Agent Window, building the UI with Composer 2, pulling YouTube transcripts, and wiring up AI summarization with the AI SDK and OpenRouter. 📖 Chapters: 00:00 The final product 00:07 The wheel spin challenge 00:25 Cursor it is 00:50 Setting up the project in Cursor 01:44 Installing skills (shadcn, Next.js, frontend design) 03:05 Building the UI with Composer 2 05:00 Testing the mockup UI 06:46 Pulling YouTube transcripts 08:21 Cursor's agent tests in the browser 09:37 Adding AI summarization with the AI SDK 11:02 Setting up OpenRouter for inference 13:37 Building the AI integration 14:28 Testing the final app 15:03 The result 🔗 Resources: Cursor: https://cursor.com AI SDK: https://sdk.vercel.ai OpenRouter: https://openrouter.ai shadcn/ui: https://ui.shadcn.com Skills (skills.sh): https://skills.sh Business & sponsorship enquiries: leon@cognaitiv.ai #cursor #agenticcoding #vibecoding