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SKILL verified MIT Self-run

Backup Vault

skill-fredoliveira-agents-backup-vault · by fredoliveira

Create a dated zip backup of the Obsidian vault and rotate old backups on a grandfather-father-son schedule (14 daily, 5 weekly, 12 monthly, 5 yearly). Use when asked to back up the vault, make a snapshot, or run/prune vault backups.

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Install

$ agentstack add skill-fredoliveira-agents-backup-vault

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

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Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

Vault backup & rotation

Purpose

Keep a rolling set of zip snapshots of the vault in ~/Documents/obsidian/backups, pruned to a grandfather-father-son (GFS) retention schedule so the backup folder stays bounded instead of growing forever.

The actual work is done by backup.sh (next to this file) — the logic is deterministic, so run the script rather than reimplementing it by hand.

Retention schedule

A backup is kept if any tier wants it; everything else is deleted.

| Tier | Rule | | ------- | ------------------------------------------------- | | Daily | every backup from the last 14 days | | Weekly | newest backup of each of the 5 most recent ISO weeks | | Monthly | newest backup of each of the 12 most recent months | | Yearly | newest backup of each of the 5 most recent years |

Tunable at the top of backup.sh (DAILY_DAYS, WEEKLY_KEEP, MONTHLY_KEEP, YEARLY_KEEP).

What gets backed up

  • The full vault at ~/Documents/obsidian/umwelt, including .obsidian

(themes, plugins, settings) so a restore reproduces the exact setup.

  • Excluded: .DS_Store, .Trash/, and the backup directory itself.
  • Archives are named umwelt-YYYY-MM-DD.zip and contain a top-level umwelt/

folder, so restoring is just unzip umwelt-.zip.

Instructions

  1. Run the script:

``sh bash ~/.claude/skills/backup-vault/backup.sh ``

  • Preview without changing anything: bash .../backup.sh --dry-run
  • Override paths if needed: VAULT_DIR=... BACKUP_DIR=... bash .../backup.sh
  1. Report the summary line (how many backups were created / kept / pruned) and

the resulting archive size.

The script is idempotent per day: at most one backup is created per calendar date, so it's safe to run repeatedly. Running it both creates today's snapshot and applies retention in one pass.

Notes

  • This is local only. To replicate offsite, rsync the backups/ directory to

the remote target after running the script, e.g. rsync -a --delete ~/Documents/obsidian/backups/ :obsidian-backups/. Because retention deletes files locally, use --delete so the remote mirrors the same pruned set.

  • For unattended daily runs, schedule the script (launchd/cron, or the

/schedule skill). Nothing in the script needs an interactive session.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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