Lao Guo's Learning Space

Apr 7, 2026 · Artificial Intelligence

Inside Claude Code: How Anthropic’s Harness Architecture Powers a Secure AI Coding Assistant

The article dissects Claude Code’s Harness layer, detailing its five core components, four‑layer defense strategy, guiding principles, and a step‑by‑step refactoring workflow that together turn a language model into a safe, controllable AI coding partner.