Developer Ivan Magda is exploring coding agent architecture by rebuilding Claude Code in Swift. The project tests whether effective agents need complex orchestration or just excellent tools and tight loops. Magda suspects Claude Code's effectiveness comes from restraint rather than complexity, challenging conventional approaches to AI coding assistants and exploring what minimalism can achieve.

The implementation features a simple loop invariant with variable tool definitions, progressing through two phases. Phase 1 establishes core mechanics with minimal tools, while Phase 2 adds product features like context compaction and task management. Each stage isolates one mechanism to evaluate its impact on performance and reliability.

Built with Swift 6.2 and strict concurrency, the project uses AsyncHTTPClient for cross-platform HTTP operations. Rather than creating a full clone, Magda aims to understand what makes coding agents work. This minimalist approach could influence future AI development tools by demonstrating less is sometimes more in agent design and implementation.