01
Install versus launch
Installing and selecting prepares the local compatibility layer. It does not silently quit or restart Codex. If Codex is already running without the required local debugging endpoint, the CLI reports RESTART_REQUIRED and waits for you.
02
Select a Registry theme
Terminal
npx get-codex-theme@0.7.0 use <theme-id>03
Launch only when ready
Terminal
npx get-codex-theme@0.7.0 launch
# If Codex is already running and you have saved your work:
npx get-codex-theme@0.7.0 launch --restart04
Safety boundary
- The signed Codex application bundle is not modified.
- The runtime service binds to loopback.
- The previous state is recorded before selection.
- Restore remains a separate, explicit command.