Spec-Driven Development with Claude Code - Full Course | Stop Beyond Vibe Coding in 2026

Vibe coding with an AI coding agent is fast, but a one-line prompt leaves every decision to the AI, so you get a different app on every run. Spec-driven development fixes that: you write the decisions down in a spec first, then let Claude Code build. Better code quality, fewer surprises, and a workflow you can repeat on every feature. 🎓 Want to learn Claude Code with me, live? Join the Claude Code Builder cohort on Maven → https://maven.com/genaiunplugged/claude-code-builder In this full course on Spec Driven Development, I build a 75 day challenge tracker from scratch in Claude Code. I spec it first, build it one feature at a time, and read every decision before a single line of code exists. Then I run the same loop on an app that already exists. So this video does answer your question about Vibe Coding or Spec-Driven Development 📚 What you will learn - Vibe coding vs Spec Driven Development. Why vibe coding gives a different answer on every run, and the five problems it hides - What a spec is. Think of it as a signed job sheet between you and the AI - How a spec-driven project is organised: three foundation files, then three files per feature - How to start a new project spec first, with an interview that replaces guessing - How to build feature one on its own branch, with a plan, risks and Playwright tests, then merge it - Why the loop repeats for every feature, and how to spot the prompt you keep pasting - How to turn that repeated prompt into a Claude Code skill your team can share - How to run spec-driven development on existing (brownfield) code - Plan mode, OpenSpec, GitHub Spec Kit, Superpowers and BMAD: what each one asks of you and when it fits - When to skip the spec entirely ✅ Prerequisites - Claude Code (I use the desktop app) - Git installed on your machine - No coding background needed. If you can read a short written file, you can follow along 📺 CHAPTERS 0:00 Why your AI guesses your app 3:30 Vibe coding: one prompt, five hidden problems 10:35 What spec-driven development is 13:58 How a spec-driven project is organised 15:48 A new project, spec first 23:42 Feature one: the full loop 33:36 Feature two: the same loop 39:10 Turn the repeated prompt into a skill 43:03 Spec-driven on existing code 46:30 Plan mode, OpenSpec, Spec Kit, Superpowers, BMAD 49:54 The 4 things to remember, and what is next 🔗 RESOURCES Claude Code → https://claude.com/product/claude-code OpenSpec → https://github.com/Fission-AI/OpenSpec GitHub Spec Kit → https://github.com/github/spec-kit Superpowers → https://github.com/obra/superpowers BMAD Method → https://github.com/bmad-code-org/BMAD-METHOD Playwright → https://playwright.dev 📥 Helpful Links: 🛠️ Check my AI Systems store → https://store.genaiunplugged.com/ ▶️ Watch the Full n8n Zero to Hero Course Playlist → https://tinyurl.com/3rw3x6hy 🌐 Subscribe to GenAI Unplugged Substack → https://genaiunplugged.substack.com/ 🎓 Learn with me on Maven → https://maven.com/genaiunplugged 🤝 Let's connect on LinkedIn → https://www.linkedin.com/in/dheerajsharma14/ 📚 Browse all my courses → https://genaiunplugged.com/ 🙌 A like is what tells YouTube to show this to the next person looking for the same fix. Subscribe if you want a new AI build every week. The BMAD masterclass is next. Tell me in the comments: which question from Claude made you stop and think about your own app? I read every comment. ⚠️ DISCLAIMER This video is educational. Every setup I show uses the provider's own documented features. Nothing here bypasses billing, cracks licensing, or works around anyone's terms of service. I am not affiliated with any of the tools or providers shown, and there are no affiliate links in this description. Free tiers, model availability and rate limits change often, so check the official docs before you follow along. Your API keys are yours to protect. Never commit one to a repo or leave one on screen. Do not send confidential or client data through a third party model provider. Follow at your own risk. I accept no liability for any cost or issue that comes out of this tutorial. #SpecDrivenDevelopment #ClaudeCode #AICoding