mlx-code is an open-source coding agent for Mac built on Apple's MLX. It supports local models and external APIs, plus subagenting for delegation when context starts to decay. You can customize behavior with system prompts, skills, custom tools, and alternate harnesses, while keeping every step captured in git commits for full traceability and easy rollback. It’s designed as a flexible building block for agent workflows, from conversational coding to sandboxed multi-agent systems.