Harness Engineering

Claude Code

The Harness Is the Product

Where does product quality live in an LLM-based system? A leaked source and a detailed postmortem, both from Anthropic in the last four weeks, make the answer unusually concrete.

24 Apr

Agentic Architecture

Harness Engineering: The Outer System That Makes Agents Reliable

Building a good harness is what separates a good agentic implementation from a great one.

02 Apr