Eval-Driven Development — 2 Technical Articles

Apr 20, 2026 · Industry Insights

Beyond the Hype: What Real Harness Engineering Means for AI Programming

The article demystifies the buzz around AI programming "harness" by explaining that true harness engineering requires clear semantics, a single source of truth, organized context, execution constraints, and evaluation loops to keep AI agents from drifting off course.

AI programmingContext EngineeringEval-Driven Development

0 likes · 12 min read

Beyond the Hype: What Real Harness Engineering Means for AI Programming

ArcThink

Apr 6, 2026 · Artificial Intelligence

How Harness Engineering Let a 3‑Person Team Write 1 Million Lines of Code in 5 Months

Harness Engineering combines systematic prompts, context management, and robust validation loops to turn powerful LLMs into reliable agents, enabling a three‑engineer team to produce about one million lines of production code in five months and boosting LangChain’s benchmark ranking by 25 places, proving that well‑designed harnesses outweigh model improvements by an order of magnitude.

AI engineeringContext EngineeringEval-Driven Development

0 likes · 25 min read

How Harness Engineering Let a 3‑Person Team Write 1 Million Lines of Code in 5 Months

Beyond the Hype: What Real Harness Engineering Means for AI Programming

How Harness Engineering Let a 3‑Person Team Write 1 Million Lines of Code in 5 Months

How Harness Engineering Let a 3‑Person Team Write 1 Million Lines of Code in 5 Months