This is a very simple validator for LOOT metadata files that tries to load a given metadata file using libloot, and prints the message for any exception thrown.
Releases are hosted on GitHub.
Snapshot builds are available as artifacts from GitHub Actions runs, though they are only kept for 90 days and can only be downloaded when logged into a GitHub account. The snapshot build archives are named like so:
metadata-validator-<last tag>-<revisions since tag>-g<short revision ID>_<branch>-<platform>.7z
metadata-validator ./masterlist.yaml
Refer to .github/workflows/ci.yml for the build process.