Migration and Upgrade

Goal

Plan and execute a safe migration.

Best Tools

• Claude Code
• Codex
• OpenCode

Recommended Prompt

Plan the migration in phases.
Include prerequisites, rollout risks, backout steps, and validation before editing.

Step-by-Step

1. map dependencies
2. phase the work
3. implement incrementally

CLI Examples

codex
opencode

IDE Examples

• use Cursor or Copilot to inspect impacted files after the plan is approved

Review Checklist

• rollout plan exists
• backout plan exists

Common Mistakes

• upgrading too many layers at once

Team Standard

Use plan-first mode for migrations.