🐛 Svelte: Components could be promoted as import types

Environment information

Details

CLI:
  Version:                      2.5.8
  Color support:                true

Platform:
  CPU Architecture:             x86_64
  OS:                           linux

Environment:
  BIOME_DISTRIBUTION:                npm
  BIOME_LOG_PATH:                    unset
  BIOME_LOG_PREFIX_NAME:             unset
  BIOME_LOG_LEVEL:                   unset
  BIOME_LOG_KIND:                    unset
  BIOME_CONFIG_PATH:                 unset
  BIOME_THREADS:                     unset
  BIOME_WATCHER_KIND:                unset
  BIOME_WATCHER_POLLING_INTERVAL:    unset
  NO_COLOR:                     unset
  TERM:                         xterm-ghostty
  JS_RUNTIME_VERSION:           v26.7.0
  JS_RUNTIME_NAME:              node
  NODE_PACKAGE_MANAGER:         pnpm/11.3.0

Biome Configuration:
  Status:                       Loaded successfully.
  Path:                         biome.json
  Formatter enabled:            true
  Linter enabled:               true
  Assist enabled:               true
  VCS enabled:                  true
  HTML full support enabled:    true

Workspace:
  Open Documents:               0

What happened?

In Svelte, components are promoted as import types when there is a variable of that component type, even if it's used.

~~The linter raises a warn/err~~
The analyzer auto fix adds type, and breaks the build

Before:

<script lang="ts">
  import Modal from "$lib/components/Modal.svelte"

  let myModal: Modal

</script>

<Modal bind:this={myModal}>
</Modal>

After auto fix:

<script lang="ts">
  import type Modal from "$lib/components/Modal.svelte"

  let myModal: Modal

</script>

<Modal bind:this={myModal}>
</Modal>

Workaround:

  "linter": {
    "enabled": true,
    "rules": {
      "preset": "recommended",
      "style": {
        "useImportType": "off"
      }
    }
  },

https://biomejs.dev/playground/?lineWidth=100&indentStyle=space&trailingCommas=es5&indentWidth=4&semicolons=as-needed&indentScriptAndStyle=true&lintRules=all&tab=analyzer-fixes&pane=Diagnostics&code=PABzAGMAcgBpAHAAdAAgAGwAYQBuAGcAPQAiAHQAcwAiAD4ACgAgACAAaQBtAHAAbwByAHQAIABNAG8AZABhAGwAIABmAHIAbwBtACAAIgAkAGwAaQBiAC8AYwBvAG0AcABvAG4AZQBuAHQAcwAvAE0AbwBkAGEAbAAuAHMAdgBlAGwAdABlACIACgAKACAAIABsAGUAdAAgAG0AeQBNAG8AZABhAGwAOgAgAE0AbwBkAGEAbAAKAAoAPAAvAHMAYwByAGkAcAB0AD4ACgAKADwATQBvAGQAYQBsACAAYgBpAG4AZAA6AHQAaABpAHMAPQB7AG0AeQBNAG8AZABhAGwAfQA%2BAAoAPAAvAE0AbwBkAGEAbAA%2BAA%3D%3D&language=svelte

Expected result

Do not consider as import types when a component is used.

Code of Conduct

I agree to follow Biome's Code of Conduct

✅ Organic activity

No automation signals detected in the analyzed events.

View full analysis →

_{This is an automated analysis by AgentScan}

Your playground doesn't reproduce the bug. I'm also confused because your biome rage output shows you have html full support enabled, so you shouldn't be seeing this bug in the first place.

@akhansari

Hello @akhansari, please provide a minimal reproduction. You can use one of the following options:

Provide a link to our playground, if it's applicable.
Provide a link to GitHub repository. To easily create a reproduction, you can use our interactive CLI via npm create @biomejs/biome-reproduction

Issues marked with S-Needs repro will be closed if they have no activity within 3 days.

This is weird 🤔 I was able to reproduce it using the playground a few hours ago.

I'll try to provide a repo sample.

@dyc3

@dyc3 You can reproduce the playground content by using --stdin-file-path.

echo '<script lang="ts">
  import Modal from "$lib/components/Modal.svelte"

  let myModal: Modal
</script>

<Modal bind:this={myModal}>
</Modal>' | pnpm biome check --write --stdin-file-path=+page.svelte

The output should be similar to (type added):

<script lang="ts">
    import type Modal from "$lib/components/Modal.svelte"

    let myModal: Modal
</script>

<Modal bind:this={myModal}> </Modal>

Is this related to the extension check?

I was able to reproduce it, and it appears this really does only affect --stdin-file-path

Update dependency @biomejs/biome to v2.5.11 (#20)

Update dependency @biomejs/biome to v2.5.11 (#42)

Navigation Menu

Repository navigation

🐛 Svelte: Components could be promoted as import types #11389

Environment information

What happened?

Expected result

Code of Conduct

✅ Organic activity

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

🐛 Svelte: Components could be promoted as import types #11389

Description

Environment information

What happened?

Expected result

Code of Conduct

Activity

github-actions commented on Aug 18, 2026

✅ Organic activity

dyc3 commented on Aug 18, 2026

biome-cookie commented on Aug 18, 2026

akhansari commented on Aug 18, 2026

akhansari commented on Aug 18, 2026

dyc3 commented on Aug 18, 2026

Metadata

Metadata

Assignees

Labels

Type

Projects

Milestone

Relationships

Development

Issue actions