migrate-oxfmt
Guide for migrating a project from Prettier or Biome to Oxfmt. Use when asked to migrate, convert, or switch a project's formatter from Prettier or Biome to Oxfmt.
Install
With your agent
Install OMGSkills skill "oxc-project/oxc:migrate-oxfmt" into this agent's normal skills directory: use the OMGSkills MCP get_skill tool, install only the pinned_install commit and path, verify SKILL.md against pinned_install.skill_md_sha, and stop if MCP or the pin is unavailable. Do not overwrite or change existing skills without asking me.
Manual command
git clone https://github.com/oxc-project/oxc /tmp/oxc && ln -s /tmp/oxc/.agents/skills/migrate-oxfmt ~/.claude/skills/migrate-oxfmtFrom README
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 First, decide whether the automated tool fits: Static config (JSON, or a JS/TS config that just exports a plain object): use --migrate below. Dynamic JS/TS config (logic such as environment branches or computed values): --migrate writes only a resolved snapshot of the values, and the logic does not survive (a warning is printed). Port the logic to oxfmt.config.ts manually with the option mappings in this guide. Nested per-directory configs: --migrate only handles the config in the current directory. Run it again in each nested directory (see "Nested Config" in Step 2).