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Zed resolves the formatter from the per-language `formatter` setting, whose default `auto` prefers Prettier and otherwise takes the first language server offering formatting. For JavaScript, TypeScript, TSX and Vue.js the built-in `vtsls` also formats, so an unconfigured project does not format with Oxfmt and ignores `.oxfmtrc.json`. The README pointed at the examples directory without stating this, leaving the required setting undiscoverable. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
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Summary
Zed resolves the formatter from the per-language
formattersetting. Its default,auto, uses Prettier when the language allows it and otherwise the first language server that advertises formatting support (Formatter::Autoincrates/project/src/lsp_store.rs). For JavaScript, TypeScript, TSX and Vue.js, Zed's defaults both allow Prettier and start the built-invtsls, which formats as well — so an unconfigured project does not format with Oxfmt, and.oxfmtrc.jsonhas no effect, without anything reporting it.The settings that fix this are already in this repository:
examples/oxfmtandexamples/bothname oxfmt for every language they cover and disallow Prettier there. The README pointed at the examples directory without stating the problem they solve, which left the required setting undiscoverable. This adds a short section saying what decides the formatter and showing the block for one language.On the other half of #212 — the extension advertising itself as the preferred formatter — that is not expressible today:
Formatter::Currenttakes the first server that advertises formatting, with no preference mechanism, andLanguageServerManifestEntrycarries onlylanguages,language_idsandcode_action_kinds. Arequire_config_fileoption is being discussed in #29, where it belongs.One correction to the report, for whoever picks this up: on current Zed,
autofor those languages resolves to Prettier rather than tovtsls;vtslswins only where Prettier is disallowed or unavailable. The wording added here covers both paths and claims neither.Documentation only, no behaviour change.
AI disclosure: written with Claude Code under my review.
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