Vibing, Harness and OODA loop
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Vibe coding with LLMs feels fast because it skips the Observe and Orient phases of the OODA loop (Observe, Orient, Decide, Act). The real engineering work — building a harness of tests, automation, and observability — is what makes iteration sustainable. Using the Emmett framework as a real example, the author walks through adding OpenTelemetry observability and creating a test harness with Node.js native tools, execa, and Docker Compose to verify the setup reproducibly. The key insight: LLMs accelerate the Act phase, but without a proper harness to close the feedback loop, you're just generating unverified output faster.
