Which field in package.json declares the CLI command for a Yeoman generator?

• A. Bin
• B. Main
• C. Scripts
• D. Engines

Answer: (A)

The field that declares the CLI command exposure for a Yeoman generator is the bin field. This tells npm which file to execute when the package is run as a command, and for generators it’s what wires the generator’s CLI into the Yeoman workflow. When you install the generator, npm uses the bin entry (which can be a single path or an object mapping command names to files) to create the executable command. Yeoman’s CLI then invokes this entry when you run the generator by name (for example through yo). The other fields don’t serve this role: main is about what gets loaded when you require the package in code, scripts holds npm tasks, and engines specifies compatible runtimes. So the bin field is the one that defines the CLI command.