Architect

Mar 26, 2026 · Artificial Intelligence

How Anthropic’s Harness Keeps Long‑Running AI Agents on Track

The article analyzes Anthropic’s Harness design for long‑running applications, detailing how it mitigates context anxiety and self‑evaluation bias through sprint contracts, rubric scoring, and a planner‑generator‑evaluator architecture, and evaluates its effectiveness across multiple versions.