AI Riser 2026 - From Vibe Coding to Spec-Driven Development

https://rsvp.withgoogle.com/events/airiservietnam

Transcript

1. MienTrung From Vibe Coding To Spec-Driven Development Hoàng Nguyễn - Technical Lead @ Nimble 📌 hoangnl.dev
2. Agenda The Evolution of Software Development Vibe Coding Spec-Driven Development Tips and Strategy Takeaways + Q&A MienTrung
3. THE TRADITIONAL WAY • • • Learning complex syntax and languages Months of development of a prototype Getting stuck on a single bug or error. THE VIBE CODING WAY • • • Describing your idea in plain English. Building fully functional apps in minutes. Clicking "Fix" and letting the AI self-heal the code.
4. Vibe Coding 📝 Prompt → ⏳ Generate → 🎯 Verify → 🔧 Fix/Refine → ♻ Repeat
5. Vibe Coding 🚀 Rapid Prototyping 💡 Accelerated Learning Transform ideas into working prototypes within minutes instead of days. AI significantly reduces the time spent writing boilerplate code, allowing developers to validate concepts and iterate much faster. Developers can explore unfamiliar frameworks, languages, or APIs through natural language conversations. AI acts as an on-demand mentor, explaining concepts while generating practical examples. ⚡ Improve Development Velocity By automating repetitive tasks such as CRUD operations, test scaffolding, documentation, and refactoring, developers can focus more on solving business problems and designing high-value features instead of writing routine code.
6. Vibe Coding Can we build production systems this way?
7. Spec-Driven Development Specs Plan Tasks Implementation Define WHAT needs to be built and why. A specification captures business goals, user stories, acceptance criteria, UI behavior, API contracts, constraints, and edge cases, serving as the single source of truth for both humans and AI. Decide HOW the solution will be implemented. Break the specification into a technical approach, architecture, milestones, dependencies, and implementation strategy before writing any code.. Convert the implementation plan into small, actionable work items. Each task has a clear objective, scope, expected output, and acceptance criteria, making it easy for developers or AI agents to execute independently. Execute the tasks by writing code, tests, documentation, and reviews. AI assists with implementation, while developers verify the output against the specification rather than relying on prompts alone.
10. project/ ├── README.md ├── AGENTS.md ├── docs/ │ ├── architecture.md │ └── features/ │ └── checkout/ │ ├── spec.md │ ├── plan.md │ ├── tasks.md │ └── test-plan.md │ └── src/
11. Comparison
13. Tips and strategy Structuring the Specification Execution and Workflow Strategies Keep Humans in Control - Write concise specifications - Define execution boundaries - Keep specifications lean - Break work into small tasks - Use steering documents - Leverage reusable skills - Review plans - Validate against specs - Refine continuously
14. Tips and strategy https://github.com/github/spec-kit + Gemini CLI
15. Takeaways Vibe Coding fits for rapid prototyping and exploration Define intent before implementation Huma-in-the-loop Core knowledge MienTrung