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Skills Backup Keeper

Your skills folder can be wiped without warning. This skill makes sure that costs you five minutes, not five weeks.

What it produces

  • A dated, never-overwritten copy of your whole skills folder at /Documents/Cowork/skills-backup/YYYY-MM-DD/, with a backup-manifest.md listing exactly what was copied.
  • An append-only session-journal.md (goal, files touched, decisions, next steps) stored in skills-backup/, outside the skills folder, so a wipe cannot take it too. A new conversation reads it and resumes where the last one stopped.
  • A guided, approval-gated restore that copies a chosen backup back into /Documents/Cowork/skills/ and verifies the result against the manifest.

What to say to it

  • “Back up my skills folder before I edit anything”
  • “Update the session journal: we finished the budget review skill, next step is testing”
  • “New conversation. Where did we leave off?”
  • “My skills folder is empty again. Restore from the latest backup.”

How to install it

  1. 1Download skills-backup-keeper.zip.
  2. 2In Cowork, open Customize.
  3. 3Select the Skills tab.
  4. 4Select the arrow next to Add, then Upload skill, and choose the file you downloaded.
  5. 5Start a new conversation and use one of the phrases above. Skills are only picked up when a conversation starts.

Cowork has to be switched on for you by an admin, and it is off by default. Custom skills are not supported on a phone or tablet, so use a laptop or desktop.

Cowork checks the file when you upload it and tells you if something is wrong, so you will know either way.

Last run in a live Cowork tenant on 2026-06-16.

Read the full skill, including its rules and references, in the source repository. Licensed CC BY-SA 4.0 as part of awesome-copilot-cowork-skills.