[PM-31180] Proposal use oxfmt instead of prettier

[Hinton]

🎟️ Tracking

https://bitwarden.atlassian.net/browse/PM-31180

📔 Objective

Speeds up formatting almost by a factor of 7.

Oxlint: 0.6s
Prettier: ~4.1s

⏰ Reminders before review

• Contributor guidelines followed
• All formatters and local linters executed and passed
• Written new unit and / or integration tests where applicable
• Protected functional changes with optionality (feature flags)
• Used internationalization (i18n) for all UI strings
• CI builds passed
• Communicated to DevOps any deployment requirements
• Updated any necessary documentation (Confluence, contributing docs) or informed the documentation
  team

🦮 Reviewer guidelines

• 👍 (:+1:) or similar for great changes
• 📝 (:memo:) or ℹ️ (:information_source:) for notes or general info
• ❓ (:question:) for questions
• 🤔 (:thinking:) or 💭 (:thought_balloon:) for more open inquiry that's not quite a confirmed
  issue and could potentially benefit from discussion
• 🎨 (:art:) for suggestions / improvements
• ❌ (:x:) or ⚠️ (:warning:) for more significant problems or concerns needing attention
• 🌱 (:seedling:) or ♻️ (:recycle:) for future improvements or indications of technical debt
• ⛏ (:pick:) for minor or nitpick changes

[github-actions]

Checkmarx One – Scan Summary & Details – 9b470fcb-505d-41a0-b012-cd3186c53606

Fixed Issues (1)

Great job! The following issues were fixed in this Pull Request

Severity	Issue	Source File / Package
	CVE-2025-64756	Npm-glob-11.0.3

[github-actions]

🔍 SDK Breaking Change Detection Results

SDK Version: arch/oxfmt (2c58f3a)
Completed: 2026-01-29 09:53:56 UTC
Total Time: 246s

Client	Status	Details
typescript	❌ Breaking changes detected	TypeScript compilation failed with new SDK version - View Details

---

Breaking change detection completed. View SDK workflow

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 79.76%. Comparing base (c17008b) to head (2c58f3a).
⚠️ Report is 9 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #706      +/-   ##
==========================================
+ Coverage   79.62%   79.76%   +0.14%     
==========================================
  Files         293      299       +6     
  Lines       32780    33210     +430     
==========================================
+ Hits        26102    26491     +389     
- Misses       6678     6719      +41     

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[Hinton]

oxfmt also handles toml files. We can disable this if we want, but I think using this over cargo sort probably produces better result.

[djsmith85]

Changes are looking good. I'm looking forward to the speed-improvements.

• Replaces the usage of prettier
• Deletes the prettier-config files so no cmd/extension picks up any rules by accident
• Changes the githook to use oxfmt
• Changes to package.json and toml files are minimal
• Removes prettier from renovate and adds oxfmt
• Instructions on README.md updated

Are we planning on also replacing this on clients?
Then we should follow up with a PR there and also update the contributing-docs. As a potential replacement for the prettier vscode plugin: oxc 🤷 ?

[Hinton]

@djsmith85 I replaced the prettier extension recommendation with oxc and configured formatter for applicable files in vscode.

There actually is a PR up for clients