Micro Agent is an AI code assistant that can automatically write code based on test cases or design screenshots until the test passes or the design matches. It primarily addresses issues that require repetitive iteration to fix the code, reducing the manual iteration process through AI technology. Micro Agent focuses on writing tests and generating code that passes the tests, rather than trying to be a full-stack developer. It integrates with Visual Copilot, allowing direct connection to Figma, ensuring a high-fidelity conversion from design to code.