Wizy AI News••7 min read
Harness Engineering: Why Vibe Coding Alone Can't Survive Production
Vibe coding changed how we build software. Instead of writing every line, you describe intent in natural language—AI generates the code. Prototypes fly. Demos impress. Founders celebrate.
Then you push it to production. And the AI agent starts doing unexpected things.
This is exactly the problem that Harness Engineering—the fourth paradigm in AI development history—was born to solve.
The 4 Paradigms of AI Development: From Prompt to Harness
In four years, how developers work with AI has undergone complete transformation through distinct phases:
| Paradigm | Era | Core Idea |
|---|---|---|
| Prompt Engineering | 2022–2023 | Refine each prompt for consistent outputs |
| Context Engineering | 2023–2024 | Design the AI's information environment (RAG, tool access) |
| Vibe Coding | 2024–2025 | Intent is the input — AI generates code, devs iterate |
Hoan Do
Founder at Wizy Marketing Agency. Passionate about helping Vietnamese businesses in North America scale with modern technology and premium marketing strategies.
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