Integration of Claude Code and Agent SDK: Analysis of Multi-Agent Collaborative Development Workflow Template

This open-source project harness-template builds a standardized AI-driven development workflow based on Claude Code and Agent SDK. It is corely divided into the design phase (human collaboration with Claude Code to refine requirements) and the execution phase (Planner-Generator-Evaluator self-loop), achieving standardization and AI-driven development processes.

Traditional development models do not fully leverage the potential of AI in the entire process of design, implementation, and verification. This project aims to address this issue. The core concept is to divide development into the design phase (human collaboration with Claude Code to solidify requirement specifications) and the execution phase (Agent SDK-driven three-agent self-loop), helping teams quickly adopt self-orchestrated workflows.

The design phase emphasizes in-depth human-AI collaboration, solidifying requirements through repeated refinement, with Claude Code assisting in requirement analysis and clarifying ambiguities. The execution phase uses a closed-loop system of three agents: Planner (task decomposition), Generator (code generation), and Evaluator (quality assessment), minimizing manual intervention to complete the transition from design to implementation.

It includes components such as WORKFLOW.md (process definition document), layered agent configurations (CLAUDE.md, AGENTS.md, etc.), orchestrator.py (execution core), dual gating mechanisms (CC Hook and pre-commit), skill command sets (e.g., /brainstorm), standardized document templates, and Copier integration (project initialization and updates).

Applicable scenarios include standardizing team development processes, lowering the threshold for using AI tools, improving development quality, and knowledge precipitation and reuse. Its value lies in reducing collaboration friction, enabling developers to quickly get started with AI-driven models, early problem detection, and accumulating reusable design knowledge.

Design philosophies include hierarchical human-AI collaboration, workflow as code, balance between automation and controllability, and template-based thinking. Limitations include Japanese document barriers, binding to the Claude/Agent SDK ecosystem, and potential over-complexity for small projects.

This project provides a reference paradigm for AI-driven development, demonstrating the human-AI collaboration process combining Claude and Agent SDK. Its value to teams is not only the template but also systematic thinking. In the future, such orchestration templates will become more important, helping teams balance AI efficiency and process controllability.