OpenAI published "Harness Engineering" in February 2026. The thesis: engineers don't write code anymore. They design environments, specify intent, and build fee

OpenAI published "Harness Engineering" in February 2026. The thesis: engineers don't write code anymore. They design environments, specify intent, and build feedback loops. Agents do the rest. Codex proved the concept. Symphony showed the architecture in Elixir/OTP. I wanted the same thing with Claude Code. So I built Hatice.