This is a platform-specific implementation package for @tsrx/oxc. There are eight of them, one per supported target, named @tsrx/oxc-<platform>, and @tsrx/oxc lists all eight as optionalDependencies. Your package manager installs only the one matching your operating system, CPU, and C library, so a normal install downloads one prebuilt binary rather than eight.

You should not add this package to your own package.json. Depend on @tsrx/oxc and let resolution pick the platform package for you. Install it by hand only if a package manager has been configured to skip optional dependencies. The package has no install script and does not download or compile anything after installation.

What is inside

bin/oxc-tsrx is one Rust-native executable that carries the linter, the formatter, and the language server together. It selects a tool from a leading subcommand: none or lint to lint, fmt to format, lsp to serve an editor. It also dispatches on the name it was invoked under, so a copy or link named oxc-tsrx-fmt or oxc-tsrx-lsp runs that tool directly.

One executable rather than three matters for download size. Three separate binaries linked the same OXC engines three times; the merged one is a little over half the bytes.

Schema-2 releases also contain parser.node, the canonical Node-API parser addon. @tsrx/oxc loads it for its @tsrx/oxc/parser export.

Verifying what you got

checksums.json records, for every executable and addon in the package, its SHA-256 digest, byte size, object identity, Rust target, package version, API/ABI role, Node-API version, capabilities, and the exact official OXC revision it was built against.