Fill in the name, version, and description, then list your npm scripts as key:value lines and dependencies as name:version lines, and the tool assembles a complete package.json.
Yes. The output is standard JSON — open it in any editor afterward to add fields like repository, engines, or additional metadata npm supports.
Yes, as a starting point — adjust the values to match your actual project structure and tooling versions.
It follows the tool's documented format, but always run your build once after adding it to confirm your specific setup is happy.