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: call the OMGSkills MCP get_install_plan tool for your agent and run the script it returns (it installs only the pinned commit and verifies SKILL.md), 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).