plugin

session-backup — Claude Code plugin for backups

Q: How do I install session-backup in Claude Code?

Run `/plugin marketplace add anthropics/claude-plugins-community`, then run `/plugin install session-backup@claude-community`.

This plugin archives Cowork files and uploads them to Google Drive. Run a backup on demand or schedule daily runs through Cowork.

Install into Claude Code · Plugin marketplace All methods and platforms ↓

/plugin marketplace add anthropics/claude-plugins-community
/plugin install session-backup@claude-community

Open on GitHub

What session-backup does

The plugin packages Cowork skills, plugins, Claude docs, and configuration files, then uploads separate ZIPs to the Cowork-Backups folder in Google Drive. Before uploading, it retrieves the existing backup and merges it with the new files. New files replace matches; older files with no match are kept.

You need the Google Drive Upload connector built with Apps Script and ~/.cowork-gdrive-config.json containing url and apiKey. Without a configured connector, uploads to Drive will fail. The archive skips node_modules/, .git/, PNG and JPG images, and package-lock.json. To run backups daily, set up a scheduled task in Cowork. Use /backup-now to start one, /backup-setup to configure the connection, or /backup-status to check the last run.

What it helps with

back up Cowork files to Google Drive
merge a new backup with existing files
split backup contents into component ZIPs
check the status of the last backup

Example prompts for the agent

Back up my Cowork files to Google Drive now: /backup-now.
Set up the Google Drive connection for backups: /backup-setup.
Check when the last backup ran: /backup-status.

How to install session-backup

Plugin marketplace

/plugin marketplace add anthropics/claude-plugins-community

/plugin install session-backup@claude-community

Step by step, with commands for each platform: Claude Code plugins: marketplaces, installing, and building your own

Questions about session-backup

How do I install session-backup in Claude Code?

Run /plugin marketplace add anthropics/claude-plugins-community, then run /plugin install session-backup@claude-community.

What does session-backup do?

It packages Cowork files into separate archives and uploads them to Google Drive. On later runs, matching files are replaced while unmatched older files are retained.

What do I need to upload backups to Google Drive?

Set up the Google Drive Upload connector using Apps Script and create ~/.cowork-gdrive-config.json with url and apiKey.

Source text

session-backup · MIT

# Session Backup — Claude Plugin by MSApps

Automated daily backups of your entire Cowork environment to Google Drive.

## What gets backed up

| Component | Description | Typical size |
|-----------|-------------|--------------|
| **Skills** | All Cowork skill definitions, references, and scripts | ~3 MB |
| **Plugins** | Installed plugins, marketplace cache, plugin configs | ~2 MB |
| **Claude Docs** | Scheduled tasks, session context files, MCP configs | ~8 MB |
| **Configs** | `claude_desktop_config.json` and connection configs | < 1 KB |

## How it works

1. **Download** the existing backup from Google Drive (if one exists)
2. **Build** fresh zips of each component from the local machine
3. **Merge** old + new content (new files win conflicts, old-only files preserved)
4. **Upload** each component as a separate zip to the `Cowork-Backups` folder on Drive

The merge strategy lets multiple accounts share the same Drive storage without overwriting each other.

## Split upload strategy

Google Apps Script has a ~10 MB base64 payload limit. The backup is split into 4 files:

- `cowork-skills-backup.zip`
- `cowork-plugins-backup.zip`
- `cowork-docs-backup.zip`
- `cowork-configs-backup.zip`

Each uploaded with `replaceExisting: true`.

## Size optimization

Excludes heavy regeneratable content to stay within upload limits:

- `node_modules/` — install from package.json
- `.git/` — version history
- `*.png`, `*.jpg` — screenshots
- `package-lock.json` — regeneratable

This typically reduces the docs backup from ~140 MB to ~8 MB.

## Installation

**Claude Code (CLI):**
```bash
/plugin marketplace add MSApps-Mobile/claude-plugins
/plugin install session-backup@msapps-plugins
```

**Cowork:**
1. Settings → Plugins → Marketplaces → Add → `MSApps-Mobile/claude-plugins`
2. Search "session-backup" → Install

## Requirements

- **Google Drive Upload connector** — Apps Script web app (see CONNECTORS.md)
- **Config file** at `~/.cowork-gdrive-config.json`
- One of the following:
  - **Claude Code** (CLI) — runs bash commands directly on your Mac
  - **Claude Cowork** — uses osascript to access host machine files

## Setup

1. Deploy the Apps Script (see [CONNECTORS.md](CONNECTORS.md))
2. Create config: `~/.cowork-gdrive-config.json` with `url` and `apiKey`
3. Set up as a Cowork scheduled task for daily runs

## Commands

| Command | Description |
|---------|-------------|
| `/backup-now` | Run an immediate backup |
| `/backup-setup` | Configure the backup connection |
| `/backup-status` | Check last backup status |

## License

MIT — Free and open source.

## Author

**MSApps** — [msapps.mobi](https://msapps.mobi) | [[email protected]](mailto:[email protected])

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