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Before (Prettier) · Ohh-889 | DecimalAI

codingby Ohh-889

Before (Prettier)

migrate-oxfmt

Source Ohh-889/skyroc-admin ↗License Not recorded

Guide for migrating a project from Prettier or Biome to Oxfmt.

SkillScore56Maintained

Automatic

Coding pack

Last verified 7/27/2026

What it changes

Passed 14 of 25 test cases with the skill, and 1 of 25 without it.

Without skill4%

With skill56%

13 fixed1 passed either way11 still failing0 broke

Pass-rate lift: +52 pp
Tokens: +67%
Agent turns: 0%
Response time: -60%

Model gemini-3.6-flashMeasured 7/27/2026v114 of 25 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/migrate-oxfmt/SKILL.md https://app.decimal.ai/s/migrate-oxfmt/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add migrate-oxfmt, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/migrate-oxfmt/ and pins it in .decimal/skills.lock

decimalai skills add migrate-oxfmt

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/migrate-oxfmt/SKILL.md https://app.decimal.ai/s/migrate-oxfmt/SKILL.md

Raw file: /s/migrate-oxfmt/SKILL.md ↗ · machine-readable summary at /s/migrate-oxfmt.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

What's inside

The instructions your model reads when the skill loads.

SKILL.md197 linessingle file

This skill guides you through migrating a JavaScript/TypeScript project from Prettier or Biome to Oxfmt.

Overview

Oxfmt is a high-performance, Prettier-compatible code formatter. Most Prettier options are supported directly.

An automated migration tool is built into oxfmt, supporting both Prettier and Biome as migration sources.

Step 1: Run Automated Migration

From Prettier

npx oxfmt@latest --migrate prettier

This will:

Find and read your Prettier config (any format Prettier supports)
Create .oxfmtrc.json with migrated options
Migrate .prettierignore patterns to ignorePatterns
Migrate prettier-plugin-tailwindcss options to sortTailwindcss
Detect prettier-plugin-packagejson and enable sortPackageJson

From Biome

npx oxfmt@latest --migrate biome

This will:

Find and read biome.json or biome.jsonc
Create .oxfmtrc.json with migrated options
Migrate negated patterns from files.includes to ignorePatterns
Map Biome's two-level config (formatter.* and javascript.formatter.*) to oxfmt options

Biome option mapping:

| Biome | oxfmt |

Track record

Benchmark

14 / 25

test cases passed, vs 1 / 25 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 7/30/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

Ohh-889 / skyroc-admin

.agents/skills/migrate-oxfmt/SKILL.md

View on GitHub ↗

Imported 8/1/2026Version v1

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migrate-oxlintGuide for migrating a project from ESLint to Oxlint. Use when asked to migrate, convert, or switch a JavaScript/TypeScript project's linter from ESLint to Oxlint.Close match+41 pp pass-rate lift

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