Microsoft has introduced GitHub Copilot, an AI-powered coding assistant, and some employees are being asked to use it and review its change suggestions on projects. The tool has been met with criticism, with many finding it to be unhelpful and prone to errors. Some developers are concerned that the push for AI-powered coding assistants is driven by management's desire to cut costs and improve the company's image, rather than a genuine attempt to improve the development process. The use of Copilot has been described as 'comically bad' and 'unhelpful' by some developers.