Hex literal uppercase issues with `eslint --fix` in Astro scripts

[Liumingxun]

Describe the bug

When running eslint --fix on an Astro project, there are two issues with hex literal uppercase handling:

• In code fence scripts, lowercase hex literals are incorrectly fixed.

• In client scripts, circular fixes occur.

I checked with the eslint config inspector; unicorn/number-literal-case should handle them uniformly as uppercase.

---

Additional details

When switching to pnpm as the package manager, circular fixes no longer occur. However, hex literals are still fixed to lowercase by the prettier-related rules.

Reproduction

https://stackblitz.com/~/github.com/Liumingxun/hex-literal-issues

System Info

System:
    OS: Linux 6.6 Arch Linux
    CPU: (8) x64 Intel(R) Core(TM) i5-9300H CPU @ 2.40GHz
    Memory: 1.84 GB / 7.71 GB
    Container: Yes
    Shell: 5.9 - /usr/bin/zsh
  Binaries:
    Node: 24.14.0 - /home/limx/.local/share/pnpm/node
    npm: 11.9.0 - /home/limx/.local/share/pnpm/npm
    pnpm: 10.32.1 - /home/limx/.local/share/pnpm/pnpm
    bun: 1.3.11 - /home/limx/.bun/bin/bun
    Deno: 2.7.5 - /home/limx/.deno/bin/deno



{
  "dependencies": {
    "astro": "^6.0.7"
  },
  "devDependencies": {
    "@antfu/eslint-config": "^7.7.3",
    "astro-eslint-parser": "^1.3.0",
    "eslint": "^10.0.3",
    "eslint-plugin-astro": "^1.6.0",
    "eslint-plugin-format": "^2.0.1",
    "prettier-plugin-astro": "^0.14.1"
  }
}

Used Package Manager

bun

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• Read the Contributing Guide.
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• The provided reproduction is a minimal reproducible of the bug.

Contributions

• I am willing to submit a PR to fix this issue
• I am willing to submit a PR with failing tests (actually just go ahead and do it, thanks!)