prefer-publish-to-none
Warns when a pubspec file does not have publish_to: none config.
Adding publish_to: none helps ensure that your internal packages (that are not actually intended to be published) won't be published when dart publish is called (even accidentally).
Example
❌ Bad:
pubspec.yaml
name: some_package # LINT: Add 'publish_to: none' to ensure that the package won't be published.
description: ...
version: 1.0.0
✅ Good:
pubspec.yaml
name: some_package
publish_to: none
description: ...
version: 1.0.0