What is the main purpose of a build tool in software development?

The main purpose of a build tool in software development is to automate the process of compiling source code and managing dependencies. This automation is crucial because it allows developers to streamline their workflow, reduce the likelihood of human error during compilation, and ensure that all necessary libraries and resources are correctly integrated into a project. By automating these tasks, build tools help improve efficiency, ensuring that software can be consistently built and tested every time changes are made to the codebase.

In addition to compiling code, build tools often handle other essential tasks such as packaging the application, running tests, and creating deployment artifacts. This comprehensive automation simplifies the development process and allows teams to focus on writing quality code rather than on repetitive manual tasks involved in building and maintaining a project.

The other options mentioned serve different purposes and do not align with the core function of a build tool. While enhancing coding style, preventing security vulnerabilities, and facilitating team communication are important aspects of software development, they are not the primary focus of build tools.