Moonlight

Moonlight compares command behavior against one or two reference commands.

npx @moritzbrantner/moonlight run \
  --primary 'printf "{\"value\":42}\n"' \
  --candidate 'printf "{\"value\":43}\n"'

The npm package installs the moonlight and moonlight-cli commands. It uses a small JavaScript launcher plus a platform-specific native package.

If your platform is unsupported, install the Rust CLI directly:

cargo install moonlight-cli --locked

Set MOONLIGHT_BIN=/path/to/moonlight to make the npm launcher use a local binary.