Polylint

Catches errors in Polymer code before execution, as stated in the README's tagline 'Catch errors in your polymer project before even running your code.'

Can lint entire projects with multiple HTML entry points, demonstrated by the usage example with inputs like index.html and cart.html.

Provides plugins for Atom and Sublime Text editors for inline linting, with specific installation steps outlined in the README.

Offers a CLI with configurable options for terminal-based linting, as shown in the usage example with --root and --input flags.