Six Batches, One Rollback Point

Every rung is a tagged commit where both trees still run

Six Batches, One Rollback Point Every rung is a tagged commit where both trees still run 01 / Migration Preflight · tag + parity skeleton · Migration Preflight tag + parity skeleton Core libs · config + profile · Migration Core libs config + profile Rules + IO · guard 16/16 identical · Migration Rules + IO guard 16/16 identical CLI entry · report bytes identical · Migration CLI entry report bytes identical Network · isolated port only · Migration Network isolated port only Cutover · 49 .py deleted, CI bb-only · Migration Cutover 49 .py deleted, CI bb-only Legend User UI Agent logic Policy Cloud service

Rollback

  • • Any tag restores a runnable tree
  • • Pure Python lives at the preflight tag