radix-ui package exports map prevents resolving package.json

[EricWardner]

Bug report

Current Behavior

The unified radix-ui package's exports map has a "./*" wildcard that maps to ./dist/*. This intercepts attempts to resolve radix-ui/package.json, causing Node.js to look for ./dist/package.json.mjs instead of the actual file at the package root.

Tools that use require.resolve('radix-ui/package.json') to read package metadata fail. For example, Storybook's compatibility checker emits:

▲  unable to find package.json for radix-ui

Expected behavior

require.resolve('radix-ui/package.json') should resolve to the package's package.json file, as is conventional for npm packages with exports maps.

From the NodeJS docs: https://nodejs.org/api/packages.html#package-entry-points

Existing packages introducing the "exports" field will prevent consumers of the package from using any entry points that are not defined, including the package.json (e.g. require('your-package/package.json')). This will likely be a breaking change.

Reproducible example

 // Node.js 22+
require.resolve('radix-ui/package.json')
// => Error: Cannot find module 'radix-ui/dist/package.json.js'

This can also be reproduced by running Storybook in any project that depends on radix-ui.

Suggested solution

Add a ./package.json entry to the exports map in packages/radix-ui/package.json:
https://github.com/radix-ui/primitives/blob/main/packages/react/radix-ui/package.json#L16

{
  "exports": {
    ".": { ... },
    "./*": { ... },
    "./package.json": "./package.json"
  }
}

Additional context

The individual @radix-ui/react-* packages don't have this issue because they either lack an exports map or don't use a "./*" wildcard that intercepts ./package.json.

Your environment

Software	Version
radix-ui	1.4.3
Node.js	22.x
Storybook	10.2.12

[Shuunen]

I tried to rollback to multiple previous versions of radix-ui without success 😢

[EricWardner]

😢 Not sure how to get maintainer eyes on this.

[EricWardner]

@chaance maybe? <3

[kerryj89]

I'm surprised there isn't a popular fork of radix-ui/primitives yet. But I guess with all the supply chain attacks and the bar being so low to create one, everyone is either rolling their own or paranoid about using someone elses.