PaperAgent

Apr 1, 2026 · Artificial Intelligence

Inside Claude Code: How Anthropic’s Agentic Harness Powers Next‑Gen AI Agents

The article dissects Anthropic’s open‑sourced Claude Code, revealing a meticulously engineered Agentic Harness that unifies prompt architecture, tool runtime, permission models, agent orchestration, skill packaging, plugins, hooks, and context management into a product‑grade system for reliable AI agents.