Agent Harness GA: Microsoft Ships the 2026 Agent Runtime
August 5, 2026
Microsoft's Agent Framework harness is now stable, and new research finds 98.4% of Claude Code is harness code, not AI. Inside the agent runtime shift.
Microsoft's Agent Framework harness is now stable, and new research finds 98.4% of Claude Code is harness code, not AI. Inside the agent runtime shift.
Microsoft Agent Framework for Go entered public preview in July 2026, joining Google's ADK for Go — while OpenAI and Anthropic stay Python and TypeScript only.