Endo: Files absent in package.json "files" should be unusable

[kriskowal]

Endo supports importing arbitrary modules from packages that do not supply "exports" in their package.json. To ensure that a package that works in development will also work after publication, Endo should fail if a module is absent from files.

[kriskowal]

I would like to punt or possibly even just not do this for modules. The qualifiers for modules are already sufficiently limited (they must have a .js, .cjs, .mjs, or .json extension), the behaviors of npm-packlist are sufficiently complex and so deeply entwined with fs (via glob), that a faithful emulation might be more trouble than it’s worth.

The story for respecting files for non-module resources may be a good place to revisit this issue.