RALPH-ROLLBACK - Rollback to Checkpoint

Rollback RALPH to a previous checkpoint, discarding work since then.

Commands

| Command | Description | |---------|-------------| | /ralph-rollback | Rollback to last good checkpoint | | /ralph-rollback cp-123456 | Rollback to specific checkpoint | | /ralph-rollback --list | List available checkpoints |

Process

List available checkpoints
User selects checkpoint (or default to last)
Remove checkpoints after target
Update completed subtasks list
Git reset if needed
Set state to PAUSED

List Checkpoints

╔════════════════════════════════════════════════════════════════╗
║                 Available Checkpoints                           ║
╚════════════════════════════════════════════════════════════════╝

Checkpoints (newest first):

  [3] cp-1706180600000 - ST-001-3 (2026-01-25 10:30:00)
      Changes: +45 lines, 2 files

  [2] cp-1706180400000 - ST-001-2 (2026-01-25 10:20:00)
      Changes: +32 lines, 1 file

  [1] cp-1706180200000 - ST-001-1 (2026-01-25 10:10:00)
      Changes: +15 lines, 1 file

Select checkpoint to rollback to:

Rollback Confirmation

╔════════════════════════════════════════════════════════════════╗
║                 Rollback Confirmation                           ║
╚════════════════════════════════════════════════════════════════╝

⚠ You are about to rollback to: cp-1706180400000 (ST-001-2)

This will DISCARD:
  - ST-001-3 work (+45 lines, 2 files)
  - 1 checkpoint

Git status:
  - Will revert 1 commit
  - Uncommitted changes will be lost

? Proceed with rollback?
  ○ Yes, rollback (I understand changes will be lost)
  ○ No, cancel

Rollback Complete

╔════════════════════════════════════════════════════════════════╗
║                 Rollback Complete                               ║
╚════════════════════════════════════════════════════════════════╝

✓ Rolled back to: cp-1706180400000

Removed:
  - 1 checkpoint
  - 1 completed subtask

Current state:
  Status: ⏸️ PAUSED
  Last completed: ST-001-2
  Next subtask: ST-001-3

To continue: /ralph-resume

Use Cases

Implementation went wrong direction
Tests are failing after changes
Need to try different approach
Discovered better solution