Sveltes stance on OxLint - to support or not to support?

[KieranP]

OxLint just announced initial support for JS plugins: https://oxc.rs/blog/2025-10-09-oxlint-js-plugins

Supposedly the new plugin API is very similar to EsLint, but probably designed mostly with vanilla JS/TS in mind.

I am not sure how many changes would be needed to support this eslint plugin within oxlint.

I wanted to see if the Svelte team are interested in eventually supporting OxLint?

(felt this would be better in Discussions, but if you want me to open an issue for it to be tracked there, I can do so)

[ota-meshi]

Oxlint does not yet support parsers other than JavaScript/TypeScript (Custom parsers).

https://oxc.rs/docs/guide/usage/linter/plugins.html#adding-new-plugins

Without custom parser support, it would be impossible to check the entire contents of *.vue or *.svelte files, so what we're working on is currently not possible with Oxlint.

[KieranP]

Dang. I was hoping that the OxLint plugin system would be able to pass the Svelte files to the JS plugins for parsing and linting at the same time, but evidently not then. And I imagine writing a Svelte parser in Rust is not something the Svelte team intends to do, so it sounds like linting Svelte with OxLint might be a long way off, if ever :-(

[ota-meshi]

I'm curious as to whether Oxlint intends to accept custom parsers in the future.
If a custom parser needs to be written in Rust, I think someone on the team or in the community might be motivated to make it happen.