This appears to be a legitimate SQL toolkit, but it needs Review because it can modify databases and can print password-bearing connection strings without enough safeguards.
Install only if you are comfortable letting an agent run SQL against databases you specify. Prefer read-only or least-privilege credentials, review every write/migration/restore command before it runs, avoid production unless explicitly intended, and keep exports/backups out of shared folders and source control. Do not use password-bearing connection strings in transcripts or logs until the schema tool redacts them.