Exported function arguments getting mapped as exports, breaking build

[craigrileyuk]

Describe the bug

I've recently started getting an error with the arguments inside exported functions that are being marked as exports.

So if I have export function useReactiveMedia(source, callback) then useReactiveMedia, source and callback all get marked as exports for that file and will break my build if they're used anywhere else (thus generating an import for them).

So in the repo linked below, you will receive a:

Uncaught SyntaxError: The requested module 'http://localhost:5174/src/composables/useCan.js' doesn't provide an export named: 'options'

error because the useTest.js file gets this prepended in its output:

import { options } from "/src/composables/useCan.js";

UPDATE

Traced the issue back to unjs/unimport version 5.7.0+. Suggest you lock to 5.6.0 until they fix it.

Reproduction

https://github.com/craigrileyuk/auto-import-jsdoc-issue

System Info

System:
    OS: macOS 13.7.8
    CPU: (8) x64 Intel(R) Core(TM) i7-6700K CPU @ 4.00GHz
    Memory: 82.22 MB / 32.00 GB
    Shell: 5.9 - /bin/zsh
  Binaries:
    Node: 25.5.0 - ~/.nvm/versions/node/v25.5.0/bin/node
    npm: 11.8.0 - ~/.nvm/versions/node/v25.5.0/bin/npm
    pnpm: 10.28.2 - ~/Library/pnpm/pnpm
  Browsers:
    Chrome: 145.0.7632.117
    Firefox: 148.0
    Safari: 18.6

Used Package Manager

npm

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