Need VS Code integration? ├── Yes → Claude Code (native integration, automatic hooks) └── No → Need CI/CD automation? ├── Yes → Codex (headless, profiles, scripting) └── No → Need complex agent workflows? ├── Yes → Claude Code (Task tool, TodoWrite, parallel agents) └── No → Need CLI-first workflow? ├── Yes → Codex (standalone CLI, MCP servers) └── No → Prefer automatic quality checks? ├── Yes → Claude Code (automatic hooks, notifications) └── No → Team has mixed environments? ├── Yes → Both (cross-backend compatibility) └── No → Claude Code (simpler user experience)