Claude Code Agent Harness Architecture

Skill by ara.so — Claude Code Skills collection.

Overview

This project is a comprehensive 420,000-word architectural analysis of AI Agent Harness design, using Claude Code as the reference implementation. It provides production-ready patterns for building agent systems with conversation loops, tool execution, permission management, context compression, memory systems, and multi-agent orchestration.

Key Capabilities:

• Agent conversation loop architecture (async generator pattern)
• Tool system design with 50+ tool implementations
• Four-stage permission pipeline
• Context management and compression strategies
• Memory systems and fork mechanisms
• MCP (Model Context Protocol) integration
• Sub-agent orchestration patterns
• Streaming architecture and performance optimization

Installation