codex resume

Continues an earlier Codex session via the CLI.

codex resume continues a previous session, including via resume --last for the most recently used session or with a specific session ID. The same resume logic also exists as exec resume --last/<ID> for non-interactive mode.

✅ WHEN TO USE IT?

Continue the last session directly from the command line

codex resume --last

Specifically continue a particular earlier session

codex resume <ID>

⛔ WHEN NOT TO?

You're already in a running interactive session

For resuming within the TUI, the standalone CLI call is unnecessary.

Better: Use /resume within the session

SOURCES

Codex CLI Doku: Reference ↗ developers.openai.com