Chapter 18: Create a Backup Verification Claude Code Skill
In this chapter, you'll build a backup-verify Skill that checks archive freshness, validates integrity, and reports anomalies every time you invoke it.
In the previous chapter, you built the disk-audit Skill and learned the complete process of creating a Claude Code Skill from start to finish.
In this chapter, you'll build a more practical Skill called backup-verify that checks whether your backup archives are recent, verifies that they aren't corrupted, and reports any problems in clear, easy-to-understand language so you don't have to inspect the backup directory manually.
Backup verification is one of the most overlooked system administration tasks because when backups work, nobody notices. But if they're corrupted or outdated when you need to restore data, the results can be disastrous.
Many administrators only confirm that the backup job completed successfully without checking whether the backup archive is actually usable.
This Skill makes that verification quick and simple, so it's easy to run whenever you want to confirm your backups are healthy.