optrex

optrex (Cornea npm installer)

Installs the prebuilt Cornea binary for your platform and exposes the cornea command. Cornea is deterministic visual inspection for AI agents: overlap, overflow, contrast and quality as token-cheap geometry instead of pixel dumps. No Chromium.

npm install -g optrex
cornea --help

On install, the matching binary is downloaded from GitHub Releases into the package bin/ folder. No Rust toolchain needed.

Supported platforms

OS	Arch	Asset
Linux (glibc)	x64	cornea-x86_64-unknown-linux-gnu
Linux (glibc)	arm64	cornea-aarch64-unknown-linux-gnu
macOS	arm64	cornea-aarch64-apple-darwin
macOS	x64	cornea-x86_64-apple-darwin
Windows	x64	cornea-x86_64-pc-windows-msvc.exe

Not listed, e.g. Android, or musl/Alpine: the installer stops with a clear error. Install from source instead (cargo install cornea) or pick a build from the releases page.

Usage

Same as the native binary:

cornea page.html 360
cornea --serve   # MCP server over stdio for agents

Versions

npm package version tracks the Cornea release version. optrex@0.2.2 installs Cornea 0.2.2.

Uninstall

npm uninstall -g optrex

License

MIT. See LICENSE. Binary builds follow the Cornea repo license.

Links: npm | GitHub | Tawakkul Labs