CopilotChat is an AI-driven tool crafted to streamline code generation through Test-Driven Development (TDD). The tool operates in three main stages to ensure efficient and high-quality code creation. Stage One: Defining Test Cases Developers begin by specifying test cases, including inputs, expected outputs, and optional requirement descriptions. This detailed planning sets clear expectations for the code's performance and facilitates a structured TDD process. Stage Two: Automated Code Generation Using advanced AI, the tool generates code based on the predefined test cases and requirements. This AI component speeds up the development process, ensuring both quality and efficiency in code creation. Stage Three: Code Validation CopilotChat then validates the generated code against the test cases. If any test case fails, the tool iteratively refines the code through continuous interaction with the AI until all tests pass. This iterative feedback loop guarantees robust, accurate, and requirement-compliant code. With a user-friendly interface, CopilotChat aims to enhance developer productivity by reducing coding errors and minimizing the time needed for testing and debugging. This powerful AI tool is designed to elevate the coding experience and streamline the TDD workflow.