Rollback Skill

Create, list, and restore checkpoints for safe recovery

Commands

MCP Integration

This skill uses the bkit_checkpoint MCP tool to manage checkpoints.

How to Execute

Create Checkpoint

1. Call bkit_checkpoint with action create
2. Optionally include a label for easy identification
3. The tool snapshots the current state of tracked files
4. Returns a checkpoint ID (format: chk-YYYYMMDD-HHMMSS)
5. Display confirmation with the checkpoint ID

List Checkpoints

1. Call bkit_checkpoint with action list
2. Display checkpoints in reverse chronological order
3. Show: ID, timestamp, label, file count, size

Restore Checkpoint

1. Call bkit_checkpoint with action restore and the checkpoint ID
2. Important: Automatically create a new checkpoint before restoring (safety net)
3. Restore files to the checkpoint state
4. Display list of files changed/restored
5. Warn about any files that were added after the checkpoint (they will remain)

Show Diff

1. Call bkit_checkpoint with action diff and the checkpoint ID
2. Compare current state against the checkpoint
3. Show added, modified, and deleted files
4. Display line-level diff for modified files

Checkpoint Storage

Checkpoints are stored in .bkit/checkpoints/:

.bkit/checkpoints/
  chk-20260409-143000/
    manifest.json    # List of files and their hashes
    label.txt        # Optional label
    files/           # Snapshot of tracked files

Manifest Format

{
  "id": "chk-20260409-143000",
  "timestamp": "2026-04-09T14:30:00Z",
  "label": "before refactor",
  "files": [
    {
      "path": "src/api/auth.js",
      "hash": "sha256:abc123...",
      "size": 2456
    }
  ],
  "totalFiles": 12,
  "totalSize": 34567
}

Auto-Checkpoint Triggers

Checkpoints are automatically created by hooks in these situations:

• Before deployment (/deploy)
• Before PDCA iterate phase
• Before bulk file operations (10+ files)

Output Format

## Checkpoint Created

- **ID**: chk-20260409-143000
- **Label**: before refactor
- **Files**: 12 tracked files
- **Size**: 34.5 KB

Use `/rollback restore chk-20260409-143000` to restore.

Safety Rules

1. Always create backup before restoring (double safety net)
2. Never delete checkpoints automatically - user must manage
3. Warn on old checkpoints - flag if restoring to a checkpoint older than 24 hours
4. Show diff first - recommend /rollback diff before /rollback restore