narenaryannarenaryan/agent-skills/skills/engineering/proton-drive-selective-backup/SKILL.md

proton-drive-selective-backup

Skill0 starsChanged 39 days agoMITView on GitHub

Use when backing up selected macOS Documents or Downloads to Proton Drive while excluding installers and dependencies, reviewing Git-based exclusions, or checking whether a filtered upload is actually recoverable.

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SKILL.md

Proton Drive selective backup

A cleanup candidate is not a backup exclusion. A Git remote is not proof that local work is recoverable. Separate inventory, selection, transfer and restore evidence; never delete originals to make a backup smaller.

Selection contract

Input	Default decision
Regular `.dmg` files; `node_modules` directories	Exclude with an explicit reason; review locally patched dependencies
PDFs, photos, Office files, archives, dotfiles	Keep as candidates, not automatically authorized uploads
`build`, `dist`, `vendor`, caches	Exclude only exact reviewed paths; names alone do not establish reproducibility
Git projects	Keep working files; require separate repository-recovery review
Symlinks, special files, unreadable/changing entries	Report blockers, never silently follow or call complete

The planner requires explicit roots, emits JSON, hashes files, and never invokes Git, Mole or Proton. Its .git omission blocks completeness. Check local-only/unpushed branches, dirty/untracked work, ignored assets, LFS objects and submodules before approving project exclusions. .gitignore is not a backup policy.

Recipe

Obtain permission for the exact local roots. After checking installed-version help, optional mo analyze --json "$HOME/Documents" provides sizing insights; partial sizes are lower bounds. Never run Mole cleanup, purge, installer or optimize in this workflow.
From this skill directory, run:
```
python3 scripts/plan_backup.py --root "Documents=$HOME/Documents" --root "Downloads=$HOME/Downloads"
```
Resolve exclusions, Git warnings, collisions, limits and errors. Keep the manifest private: filenames and hashes reveal information. See planner contract.
Show selected data categories, destination account/folder, estimated bytes and omissions. Obtain upload approval, explicitly covering sensitive documents or secrets; encryption does not substitute for consent. Installation, persistent authentication and recurring runs require their own authorization. Browser login is proton-drive auth login; putting the binary on PATH is separate from its saved session.
Prepare an approved, private staging copy outside every source root; use regular files, not symlinks or hard links to changing originals. Rehash staging against the approved manifest and stop on drift. See transfer and restore gates. The planner does not implement staging or transfer.
Confirm installed CLI options, upload only staging, reconcile every planned item, then restore into a fresh directory and compare paths, sizes and SHA-256. Report sampled versus complete verification accurately. Never propagate local deletion or run remote replacement by default.

Pitfalls

Proton skip can omit changed files; current-source replace trashes remote content. JSON mode does not make a command a dry run.
Case-only or Unicode-equivalent names may collide on restoration. Resolve without overwriting originals.
A clean scan is not an atomic snapshot; later changes invalidate approval and hashes. File bytes alone do not preserve macOS ACLs, resource forks or extended attributes.
Upload success, cached remote digests and configured Git remotes are not restore evidence. Sources and version limits.

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